Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April's arrival is marked by an increase in the average high-temperature, moving from an icy 36.1°F (2.3°C) in March to a frosty 47.8°F (8.8°C). Throughout April, an average low-temperature of 32.9°F (0.5°C) is experienced.Humidity
In Calais, the average relative humidity in April is 80%.Rainfall
In April, the rain falls for 17.2 days. Throughout April, 3.27" (83mm) of precipitation is accumulated. In Calais, during the entire year, the rain falls for 155.3 days and collects up to 32.48" (825mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Calais, in April, during 4.9 snowfall days, 3.86" (98mm) of snow is typically accumulated. Throughout the year, there are 64.6 snowfall days, and 30.47" (774mm) of snow is accumulated.Daylight
In Calais, the average length of the day in April is 13h and 32min.On the first day of the month, sunrise is at 7:08 am and sunset at 7:57 pm. On the last day of April, sunrise is at 6:18 am and sunset at 8:34 pm ADT.
Sunshine
The average sunshine in April is 6.5h.UV index
In Calais, Maine, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum daily UV index of 3 during April morphs into the following directions:
Make use of precautions - It is urged to ward off sun damage. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April?
What is the average humidity in April?
How much does it rain in April?
How many days does it snow in April?
What is the average length of the day in April?
When is the sunrise / sunset in April?
How long on average sun shines in April?
How high is the UV index in April?
Average temperature in April
Calais, ME
- Average high temperature in April: 47.8°F
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).
- Average low temperature in April: 32.9°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 in April
Calais, ME
- Average pressure in April: 29.94"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 in April
Calais, ME
- Average wind speed in April: 8.5mph
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 in April
Calais, ME
- Average humidity in April: 80%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is May (78%).
Average rainfall in April
Calais, ME
- Average rainfall in April: 3.27"
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 in April
Calais, ME
- Average rainfall days in April: 17.2 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 in April
Calais, ME
- Average snowfall in April: 3.86"
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 in April
Calais, ME
- Average snowfall days in April: 4.9 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 in April /
Average sunshine in April
Calais, ME
- Average daylight in April: 13h and 3min
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 April: 6h and 3min
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 in April
Calais, ME
- Average sunshine days in April: 8.5 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 in April
Calais, ME
- Average UV index in April: 3
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 in April
Calais, ME
- Average cloud cover in April: 57
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 in April
Calais, ME
- Average visibility in April: 5mi
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
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