Expand
Contents
- The climate of Calais
- The Best Time to Visit Calais
- The Worst Time to Visit Calais
- Spring Weather in Calais
- Summer Weather in Calais
- Autumn Weather in Calais
- Winter Weather in Calais
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Calais
Calais, a city situated in Maine, USA, experiences a humid continental climate, designated as Dfb in the Köppen climate classification. This is characterized by no dry season and warm summers. A prominent feature of this locale is the continuously changing weather conditions throughout the year. The monthly averages for several climate parameters show clear fluctuations, demonstrating the diversity of this area's weather.
Temperatures in Calais range from chilling lows of 13.8°F (-10.1°C) in January to highs reaching 74.8°F (23.8°C) in July. This broad temperature spectrum distinctly outlines the shift from winter chill to summer warmth. The humidity remains more or less consistent throughout the year, hovering between 78% and 87%. This consistency correlates with the category of the climate, which does not include a dry season.
Rainfall and snowfall figures also reveal noteworthy patterns. The highest amount of rainfall is recorded in December, reaching up to 3.7" (94mm), while the driest month of August sees a drop to 1.77" (45mm). Meanwhile, snowfall figures peak in January at 7.44" (189mm) and drop off in May, with no traces of snow recorded from June to September. The daylight span stretches from a minimum of 8.8 hours in December to a maximum of 15.6 hours in June, highlighting the city's position in the higher latitudes.
Wind speeds fluctuate modestly across the year, reaching a peak velocity of 9.3mph (15km/h) in March and dropping to a low of 6.1mph (9.8km/h) in August. In terms of atmospheric pressure, measures continuously hover around the 29.9" (759mm) mark throughout the year. These sets of data, alongside other meteorological indicators, depict Calais as having very dynamic and seasonally diverse weather conditions.
Temperatures in Calais range from chilling lows of 13.8°F (-10.1°C) in January to highs reaching 74.8°F (23.8°C) in July. This broad temperature spectrum distinctly outlines the shift from winter chill to summer warmth. The humidity remains more or less consistent throughout the year, hovering between 78% and 87%. This consistency correlates with the category of the climate, which does not include a dry season.
Rainfall and snowfall figures also reveal noteworthy patterns. The highest amount of rainfall is recorded in December, reaching up to 3.7" (94mm), while the driest month of August sees a drop to 1.77" (45mm). Meanwhile, snowfall figures peak in January at 7.44" (189mm) and drop off in May, with no traces of snow recorded from June to September. The daylight span stretches from a minimum of 8.8 hours in December to a maximum of 15.6 hours in June, highlighting the city's position in the higher latitudes.
Wind speeds fluctuate modestly across the year, reaching a peak velocity of 9.3mph (15km/h) in March and dropping to a low of 6.1mph (9.8km/h) in August. In terms of atmospheric pressure, measures continuously hover around the 29.9" (759mm) mark throughout the year. These sets of data, alongside other meteorological indicators, depict Calais as having very dynamic and seasonally diverse weather conditions.
The Best Time to Visit Calais
Preferable times to visit Calais would undoubtedly be the milder months when temperatures are more comfortable. Between May and September, temperatures range from 47.8°F (8.8°C) to 74.3°F (23.5°C), making it the ideal period for outdoor activities. The comfortable temperatures, coupled with moderate humidity levels, create a pleasant environment for tourists. Moreover, daylight hours extend from 13.5 hours in April up to 15.2 hours in July, allowing for more daylight to engage in sightseeing and activities.
The Worst Time to Visit Calais
The winter months from December to February, characterized by substantial snowfall and very low temperatures spanning from 13.8°F (-10.1°C) to 28.8°F (-1.8°C), would be a challenging time for visitors unaccustomed to harsh winters. Apart from dealing with chilling cold, the daylight hours also significantly drop during these winter months, resulting in relatively shorter daylight hours. Therefore, outdoor activities become limited.
Spring Weather in Calais
During the spring months, from March to May, Calais witnesses the transition from winter's end to the beginning of the warm season. During this time, temperatures slowly start to rise, achieving an average high of 59.4°F (15.2°C) by the end of May. However, the springtime also marks a period of relatively high precipitation, with rainfall averaging 3.27" (83mm) in April. Winds strengthen slightly, with average wind speeds reaching up to 9.3mph (15km/h) in March.
Summer Weather in Calais
Summers in Calais, from June to August, showcase degrees of warmth tempered by the coastal influence. Temperatures peak in July, averaging high of 74.8°F (23.8°C), and humidity remains fairly consistent. The summer months also bring extended daylight hours, with up to 15.6 hours of daylight in June. Winds slightly decelerate, with the lowest average speed of 6.1mph (9.8km/h) in August.
Autumn Weather in Calais
Autumn in Calais is from September to November. This period signals the transition from summer heat to the chill of winter. Temperatures gradually fall, reaching an average low of 31.3°F (-0.4°C) in November. Rainfall increases during autumn, reaching a peak of 3.27" (83mm) in November while wind speeds show a moderate increase, with an average of 7.8mph (12.6km/h) in October.
Winter Weather in Calais
The winter months in Calais, December through February, are characterized by significant cold and extensive snowfall. January emerges as the coldest month, with temperatures plummeting to an average low of 13.8°F (-10.1°C). Snowfall reaches its maximum in January, recording 7.44" (189mm), while winds reach their highest average speeds, peaking at 9.1mph (14.6km/h) in December. Winter is also characterized by shorter days with fewer daylight hours, limiting the scope for outdoor activities.
Weather in January
January in Calais, Maine marks the onset of winter, promising cold, icy days. Average temperatures range from 13.8°F (-10.1°C) to 26.6°F (-3°C), presenting quite harsh conditions. This drop in temperature sees an increase in snowfall, transforming the city into a winter wonderland. Weather in January »
Weather in February
Moving into February, temperatures in Calais marginally rise though the chill of winter remains prevalent. February sees the winter at its peak, more snow, cloud cover and icy winds than January. With the UV Index at 2 and visibility of 5 miles, this month is suitable for outdoor pursuits benefiting from the winter conditions. Weather in February »
Weather in March
March heralds the transition from winter to spring, with temperatures ranging from 21.9°F (-5.6°C) to 36.1°F (2.3°C). The snowfall days reduce to 13.2, indicating a significant decrease in the intensity of winter weather. As the clouds start to disappear, the city basks in longer periods of daylight averaging at 12 hours. Weather in March »
Weather in April
April in Calais marks the official arrival of the spring, significantly shifting the weather parameters. The gradually improving temperatures and longer daylight hours allow residents to engage in outdoor activities. The city experiences 17.2 days of rainfall, bringing freshness and stirring the blossoming of spring flowers. Weather in April »
Weather in May
May brings a significant rise in temperature, paving the way for warmer conditions in Calais. Devoid of snowfall, the city experiences mild and pleasant weather, perfect for exploration and outdoor activities. Encouraged by 14.9 hours of daylight, the city turns livelier. Weather in May »
Weather in June
June signals the beginning of the summer season, featuring balmy weather and extended daylight. Average temperatures further escalate and provide the opportunity for more outdoor ventures. Nature is at its full bloom, benefiting from the plentiful sunshine averagely lasting for 8.3 hours per day. Weather in June »
Weather in July
July is the peak of the summer in Calais, boasting the highest temperatures of the year with averages from 56.8°F (13.8°C) to 74.8°F (23.8°C). This substantial surge in temperature is complemented by the longest daylight hours, typically 15.2 in total. Weather in July »
Weather in August
In August, Calais experiences sultry weather, with high temperatures nearly as hot as July. The summer heat lingers, and the city continues to enjoy extended daylight hours and frequent sunny spells. With the decrease in rainfall, August becomes the driest month of the year, recording just 1.77" (45mm) of rain. Weather in August »
Weather in September
September sees a transition from summer to autumn, introducing milder weather. Lowering temperatures and slight increase in rainfall marks the beginning of fall weather. The summer heat starts to recede, giving way to the cool, crisp aura of autumn. Weather in September »
Weather in October
October ushers in distinct autumn weather with average temperatures dropping from 66.9°F (19.4°C) to 55.2°F (12.9°C). As the leaves change hues, Calais gets cloaked in vibrant shades of fall, creating a picturesque setting. Weather in October »
Weather in November
November in Calais heralds the beginning of colder months, as the city prepares for the coming winter. Decreasing daylight hours and plummeting temperatures characterize this month as autumn fades into winter. Less sunshine and more cloud cover significantly drop the temperatures as the season changes. Weather in November »
Weather in December
The arrival of December in Calais marks the return of the winter, bringing along with it cold temperatures and snowy landscapes. Average temperatures range between 21.9°F (-5.6°C) and 32.7°F (0.4°C), a clear indication of the upcoming frigid weather. Weather in December »
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
January is the month when Calais experiences its coldest temperatures, averaging a high of 26.6°F (-3°C) and a low of 13.8°F (-10.1°C).
How many days does it rain in Calais?
In Calais, during the entire year, the rain falls for 155.3 days and collects up to 32.48" (825mm) of precipitation.
When does it snow?
January through May, October through December are months with snowfall.
What is the snowiest month?
January is the month with the most snowfall. Snow falls for 15.2 days and accumulates 7.44" (189mm) of snow.
How much does it snow?
In Calais, during the entire year, snow falls for 64.6 days and aggregates up to 30.47" (774mm) of snow.
When is the lowest UV index?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
What is the most humid month?
The most humid month is February, with an average relative humidity of 87%.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 3.4h of sunshine.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from AST to ADT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from ADT to AST.
What is the least humid month?
With an average relative humidity of 78%, May is the least humid month.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
June has the longest days of the year in Calais, with an average of 15h and 36min of daylight.
What is the month with the highest UV index?
June through August, with an average maximum UV index of 5, are months with the highest UV index.
What is the warmest month?
Calais's July weather reaches an average high of 74.8°F (23.8°C) and an average low of 56.8°F (13.8°C), making it the warmest month.
What is the driest month?
The month with the least rainfall is August, when the rain falls for 12.6 days and typically collects 1.77" (45mm) of precipitation.
What month has the most sunshine?
With an average of 9.8h of sunshine, August has the most sunshine of the year.
What is the rainiest month?
December is the month with the most rainfall. Rain falls for 12.5 days and accumulates 3.7" (94mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 8h and 48min of daylight.
Average temperature
Calais, ME
The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is January (26.6°F).
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure
Calais, ME
- Average pressure in January:
29.93"Hg - Average pressure in February:
29.93"Hg - Average pressure in March:
29.99"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.01"Hg - Average pressure in December:
29.98"Hg
The month with the highest atmospheric pressure is September (30.03"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Calais, ME
- Average wind speed in January:
8.9mph - Average wind speed in February:
9.1mph - Average wind speed in March:
9.3mph - Average wind speed in April:
8.5mph - Average wind speed in May:
7.5mph - Average wind speed in June:
7mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.1mph - Average wind speed in September:
6.9mph - Average wind speed in October:
7.8mph - Average wind speed in November:
8.3mph - Average wind speed in December:
8.8mph
The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity
Calais, ME
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is May (78%).
Average rainfall
Calais, ME
- Average rainfall in January:
2.83" - Average rainfall in February:
2.44" - Average rainfall in March:
2.44" - Average rainfall in April:
3.27" - Average rainfall in May:
2.87" - Average rainfall in June:
2.91"
- Average rainfall in July:
1.93" - Average rainfall in August:
1.77" - Average rainfall in September:
2.13" - Average rainfall in October:
2.91" - Average rainfall in November:
3.27" - Average rainfall in December:
3.7"
The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is August (1.77").
Average rainfall days
Calais, ME
- Average rainfall days in January:
8.7 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
11.8 days - Average rainfall days in April:
17.2 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
15.9 days
- Average rainfall days in July:
15.1 days - Average rainfall days in August:
12.6 days - Average rainfall days in September:
11.1 days - Average rainfall days in October:
13.7 days - Average rainfall days in November:
11.8 days - Average rainfall days in December:
12.5 days
The month with the highest number of rainy days is April (17.2 days).
The month with the least rainy days is February (7.8 days).
Average snowfall
Calais, ME
- Average snowfall in January:
7.44" - Average snowfall in February:
5.16" - Average snowfall in March:
5.16" - Average snowfall in April:
3.86" - Average snowfall in May:
0.51" - Average snowfall in June:
0"
The month with the highest snowfall is January (7.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Calais, ME
- Average snowfall days in January:
15.2 days - Average snowfall days in February:
14.4 days - Average snowfall days in March:
13.2 days - Average snowfall days in April:
4.9 days - Average snowfall days in May:
0.3 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.5 days - Average snowfall days in November:
5 days - Average snowfall days in December:
11.1 days
The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Calais, ME
- Average daylight in January:
9h and 1min - Average daylight in February:
10h and 2min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 4min
- Average daylight in July:
15h and 1min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 3min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 3min - Average daylight in December:
8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
3h and 2min - Average sunshine in March:
4h and 4min - Average sunshine in April:
6h and 3min - Average sunshine in May:
7h and 4min - Average sunshine in June:
8h and 2min
- Average sunshine in July:
9h and 2min - Average sunshine in August:
9h and 5min - Average sunshine in September:
7h and 5min - Average sunshine in October:
6h and 2min - Average sunshine in November:
4h and 3min - Average sunshine in December:
4h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days
Calais, ME
- Average sunshine days in January:
13 days - Average sunshine days in February:
10.3 days - Average sunshine days in March:
10.9 days - Average sunshine days in April:
8.5 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
14.1 days - Average sunshine days in August:
16.2 days - Average sunshine days in September:
16.6 days - Average sunshine days in October:
14.6 days - Average sunshine days in November:
14.5 days - Average sunshine days in December:
12.5 days
The month with the most sunshine days is September (16.6 days).
The month with the least sunshine days is April (8.5 days).
Average UV index
Calais, ME
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Calais, ME
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility
Calais, ME
The months with the highest visibility are May, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, June, July, August and September (5mi).
Calais, Maine, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location