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Contents
- 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
Weather in January
January, like December, in Portland, Connecticut, is an icy winter month, with an average temperature fluctuating between 22.1°F (-5.5°C) and 34°F (1.1°C). The coldest month is January, with an average high-temperature of 34°F (1.1°C) and an average low-temperature of 22.1°F (-5.5°C). Weather in January »
Weather in February
The last month of the winter, February, is also an icy month in Portland, Connecticut, with an average temperature varying between 37°F (2.8°C) and 23°F (-5°C). As February takes hold, the average high-temperature is a still wintry 37°F (2.8°C), nearly mirroring that of the previous month. Weather in February »
Weather in March
March, the first month of the spring in Portland, is a chilly month, with an average temperature ranging between max 44.8°F (7.1°C) and min 30.4°F (-0.9°C). March witnesses a minor rise in the average high-temperature, transitioning from a wintry 37°F (2.8°C) in February to a chilly 44.8°F (7.1°C). Weather in March »
Weather in April
April is a refreshing spring month in Portland, Connecticut, with an average temperature ranging between max 56.8°F (13.8°C) and min 40.3°F (4.6°C). In Portland, the average high-temperature in April increases from a frosty 44.8°F (7.1°C) in March to a mild 56.8°F (13.8°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Portland, Connecticut, with an average temperature ranging between min 49.8°F (9.9°C) and max 68.2°F (20.1°C). May's onset witnesses a shift in the average high-temperature, moving from a mild 56.8°F (13.8°C) in April to an agreeable 68.2°F (20.1°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Portland, Connecticut, with temperature in the range of an average high of 76.1°F (24.5°C) and an average low of 57.4°F (14.1°C). Portland in June denotes a subtle temperature transition, adjusting from an average high of a pleasant 68.2°F (20.1°C) in May to a moderately hot 76.1°F (24.5°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Portland, Connecticut, with an average temperature fluctuating between 82.9°F (28.3°C) and 64°F (17.8°C). July, recognised by an average high temperature of 82.9°F (28.3°C) and a low of 64°F (17.8°C), is Portland's warmest month. July's average heat index is appraised at a hot 89.6°F (32°C). Weather in July »
Weather in August
August, the last month of the summer in Portland, is also a moderately hot month, with an average temperature varying between 81°F (27.2°C) and 63°F (17.2°C). The initiation of August records an average high-temperature of a still warm 81°F (27.2°C), displaying a near consistency with the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Portland, is also a moderately hot month, with an average temperature ranging between max 73.6°F (23.1°C) and min 56.3°F (13.5°C). The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a moderately hot 81°F (27.2°C) to a still warm 73.6°F (23.1°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Portland, Connecticut, with temperature in the range of an average high of 61.7°F (16.5°C) and an average low of 47.1°F (8.4°C). In October, the average high-temperature decreases from a moderately hot 73.6°F (23.1°C) in September to a comfortable 61.7°F (16.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Portland, is also a frosty month, with an average temperature fluctuating between 49.3°F (9.6°C) and 36.7°F (2.6°C). The onset of November coincides with a reduction in the average high-temperature, falling from a refreshing 61.7°F (16.5°C) in October to a frosty 49.3°F (9.6°C). Weather in November »
Weather in December
December, the first month of the winter in Portland, is also a wintry month, with temperature in the range of an average high of 39.7°F (4.3°C) and an average low of 29.1°F (-1.6°C). Onset of December witnesses a reduction in the average high-temperature, falling from a chilly 49.3°F (9.6°C) in November to an icy 39.7°F (4.3°C). Weather in December »
Updated: Jul 28, 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 month is the coldest?
January is the month when Portland, Connecticut, sees the average lowest temperatures, with a high of 34°F (1.1°C) and a low of 22.1°F (-5.5°C).
How much does it rain?
Throughout the year, there are 162.2 rainfall days, and 34.13" (867mm) of precipitation is accumulated.
When does it snow?
January through May, November and December are months with snowfall.
How many days does it snow?
Throughout the year, there are 29.4 snowfall days, and 14.76" (375mm) of snow is accumulated.
What are the months with the lowest UV index in Portland?
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 79%.
What is the month with the least sunshine?
February has the least sunshine of the year, with an average of 4.6h of sunshine.
When does it snow the most?
March is the month with the most snowfall. Snow falls for 6.2 days and accumulates 4.13" (105mm) of snow.
When is Daylight Saving Time (DST) in Portland?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the least humid month?
With an average relative humidity of 71%, April is the least humid month.
When it does not snow in Portland?
In Portland, snow does not fall in June through October.
When are the longest days?
The month with the longest days in Portland is June, with an average of 15h and 6min of daylight.
When is the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What time of the year is the hottest in Portland?
July stands out as Portland's warmest month, with temperatures ranging between an average high of 82.9°F (28.3°C) and a low of 64°F (17.8°C).
What are the months with the most sunshine?
The months with the most sunshine are July and August, with an average of 10.3h of sunshine.
What is the driest month?
September is the month with the least rainfall. Rain falls for 11.9 days and accumulates 1.89" (48mm) of precipitation.
What is the rainiest month?
The month with the most rainfall is December, when the rain falls for 11.9 days and typically aggregates up to 3.66" (93mm) of precipitation.
What is the month with the shortest days?
With an average of 9h and 12min of daylight, December has the shortest days of the year.
Average temperature
Portland, CT
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34°F).
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure
Portland, CT
- Average pressure in January:
30.03"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.05"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Portland, CT
- Average wind speed in January:
8.3mph - Average wind speed in February:
8.1mph - Average wind speed in March:
8.3mph - Average wind speed in April:
8mph - Average wind speed in May:
6.6mph - Average wind speed in June:
5.9mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.4mph - Average wind speed in September:
6mph - Average wind speed in October:
7.1mph - Average wind speed in November:
7.5mph - Average wind speed in December:
8mph
The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity
Portland, CT
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall
Portland, CT
- Average rainfall in January:
2.48" - Average rainfall in February:
2.48" - Average rainfall in March:
2.83" - Average rainfall in April:
3.11" - Average rainfall in May:
2.64" - Average rainfall in June:
2.91"
- Average rainfall in July:
3.07" - Average rainfall in August:
2.76" - Average rainfall in September:
1.89" - Average rainfall in October:
3.27" - Average rainfall in November:
3.03" - Average rainfall in December:
3.66"
The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days
Portland, CT
- Average rainfall days in January:
9.1 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
12.7 days - Average rainfall days in April:
15 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
16.9 days
- Average rainfall days in July:
17.2 days - Average rainfall days in August:
16.5 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
14.2 days - Average rainfall days in November:
10.7 days - Average rainfall days in December:
11.9 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is January (9.1 days).
Average snowfall
Portland, CT
- Average snowfall in January:
2.68" - Average snowfall in February:
3.78" - Average snowfall in March:
4.13" - Average snowfall in April:
0.59" - Average snowfall in May:
0.47" - Average snowfall in June:
0"
The month with the highest snowfall is March (4.13").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Portland, CT
- Average snowfall days in January:
7.2 days - Average snowfall days in February:
8.3 days - Average snowfall days in March:
6.2 days - Average snowfall days in April:
0.9 days - Average snowfall days in May:
0.2 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:
0.1 days - Average snowfall days in November:
1.2 days - Average snowfall days in December:
5.3 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Portland, CT
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
4h and 5min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 1min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 3min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Portland, CT
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
12.8 days - Average sunshine days in March:
13 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
12.1 days - Average sunshine days in June:
11.3 days
- Average sunshine days in July:
12.1 days - Average sunshine days in August:
11.8 days - Average sunshine days in September:
14.7 days - Average sunshine days in October:
14.4 days - Average sunshine days in November:
17.2 days - Average sunshine days in December:
15.1 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (11.3 days).
Average UV index
Portland, CT
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Portland, CT
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Portland, CT
The months with the highest visibility are January, March, April, August, September, October, November and December (6mi).
The months with the lowest visibility are February, May, June and July (5mi).
Portland, Connecticut, USA
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