Climate and monthly weather forecastWillimantic, CT
Climate and monthly weather forecast
Weather in January
January, like December, in Willimantic, Connecticut, is an icy winter month, with an average temperature fluctuating between 33.4°F (0.8°C) and 21.6°F (-5.8°C). Willimantic experiences its lowest average temperatures in January, reaching a peak of 33.4°F (0.8°C) and a minimum of 21.6°F (-5.8°C). Weather in January »Weather in February
The last month of the winter, February, is another cold month in Willimantic, Connecticut, with temperature in the range of an average high of 36.7°F (2.6°C) and an average low of 22.5°F (-5.3°C). Willimantic's shift into February sets the average high-temperature at a still cold 36.7°F (2.6°C), a figure that deviates only slightly from January's 33.4°F (0.8°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Willimantic, Connecticut, with temperature in the range of an average low of 29.7°F (-1.3°C) and an average high of 43.7°F (6.5°C). March's arrival signals a modest temperature shift, moving from a cold 36.7°F (2.6°C) in February to a chilly 43.7°F (6.5°C). Weather in March »Weather in April
April is a refreshing spring month in Willimantic, Connecticut, with an average temperature varying between 55.9°F (13.3°C) and 39.6°F (4.2°C). April brings a rise in Willimantic's average high-temperature, moving from a chilly 43.7°F (6.5°C) in March to a mild 55.9°F (13.3°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Willimantic, Connecticut, with an average temperature varying between 48.9°F (9.4°C) and 67.1°F (19.5°C). A rise in the average high-temperature is observed during May, moving from a mild 55.9°F (13.3°C) in April to a comfortable 67.1°F (19.5°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Willimantic, Connecticut, with an average temperature fluctuating between 74.8°F (23.8°C) and 56.3°F (13.5°C). As Willimantic transitions into June, a marginal rise in the average high-temperature is observed, moving from an enjoyable 67.1°F (19.5°C) in May to a warm 74.8°F (23.8°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Willimantic, Connecticut, with an average temperature fluctuating between 81.9°F (27.7°C) and 63°F (17.2°C). Willimantic experiences its highest temperatures in July, with an average peak of 81.9°F (27.7°C) and a low of 63°F (17.2°C). In July, the average heat index is computed to be a hot 87.8°F (31°C). Weather in July »Weather in August
August, the last month of the summer in Willimantic, is also a moderately hot month, with an average temperature varying between 62.2°F (16.8°C) and 80.2°F (26.8°C). Willimantic experiences a transition to a still moderately hot 80.2°F (26.8°C) in average high-temperatures with the arrival of August, not greatly differing from July's 81.9°F (27.7°C). Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Willimantic, Connecticut, with an average temperature ranging between max 73.2°F (22.9°C) and min 55.4°F (13°C). With the arrival of September, Willimantic experiences a modest decline in average high-temperatures, transitioning from a warm 80.2°F (26.8°C) in August to a pleasant 73.2°F (22.9°C). Weather in September »Weather in October
October, the same as September, is another comfortable autumn month in Willimantic, Connecticut, with an average temperature fluctuating between 61°F (16.1°C) and 46.4°F (8°C). In Willimantic, the average high-temperature in October decreases from a pleasant 73.2°F (22.9°C) in September to a comfortable 61°F (16.1°C). Weather in October »Weather in November
November, the last month of the autumn in Willimantic, is also a frosty month, with temperature in the range of an average low of 36.1°F (2.3°C) and an average high of 49.1°F (9.5°C). The decrease of average high-temperatures is mild in November, with a decline from a refreshing 61°F (16.1°C) in October to a chilly 49.1°F (9.5°C). Weather in November »Weather in December
December, the first month of the winter in Willimantic, is also an icy month, with an average temperature varying between 39.4°F (4.1°C) and 28.6°F (-1.9°C). December weather is marked by a drop in the average high-temperature, falling from a frosty 49.1°F (9.5°C) in November to an icy 39.4°F (4.1°C). Weather in December »Updated: Feb 10, 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
January stands out as Willimantic's coldest month, with an average high-temperature of 33.4°F (0.8°C) and a low-temperature of 21.6°F (-5.8°C).
Throughout the year, there are 164.2 rainfall days, and 33.74" (857mm) of precipitation is accumulated.
January through May, November and December are months with snowfall in Willimantic.
Throughout the year, in Willimantic, Connecticut, there are 31.6 snowfall days, and 15.98" (406mm) of snow is accumulated.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Willimantic.
The months with the highest humidity in Willimantic are February and October, with an average relative humidity of 79%.
March is the month with the most snowfall. Snow falls for 7.3 days and accumulates 4.41" (112mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Willimantic, 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.
The least humid month in Willimantic, Connecticut, is April, with an average relative humidity of 72%.
In Willimantic, Connecticut, snow does not fall in June through October.
With an average of 15h and 12min of daylight, June has the longest days of the year.
The months with the highest UV index in Willimantic are June through August, with an average maximum UV index of 6.
In Willimantic, Connecticut, the average highest temperatures are observed in July, with a high of 81.9°F (27.7°C) and a low of 63°F (17.2°C).
With an average of 10.3h of sunshine, August has the most sunshine of the year.
September is the month with the least rainfall in Willimantic. Rain falls for 13.5 days and accumulates 1.73" (44mm) of precipitation.
The month with the most rainfall is December, when the rain falls for 11.5 days and typically aggregates up to 3.46" (88mm) of precipitation.
December has the shortest days of the year in Willimantic, with an average of 9h and 12min of daylight.
The month with the least sunshine is December, with an average of 4.7h of sunshine.
Average temperature
Willimantic, CT
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.4°F).
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure
Willimantic, CT
- Average pressure in January:
30.02"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:
30.08"Hg - Average pressure in December:
30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Willimantic, CT
- Average wind speed in January:
8.8mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.8mph - Average wind speed in April:
8.3mph - Average wind speed in May:
7mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.6mph - Average wind speed in September:
6.2mph - Average wind speed in October:
7.4mph - Average wind speed in November:
7.8mph - Average wind speed in December:
8.4mph
The windiest months (with the highest average wind speed) are January and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity
Willimantic, CT
The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall
Willimantic, CT
- Average rainfall in January:
2.52" - Average rainfall in February:
2.4" - Average rainfall in March:
2.8" - Average rainfall in April:
3.15" - Average rainfall in May:
2.76" - Average rainfall in June:
2.99"
- Average rainfall in July:
3.19" - Average rainfall in August:
2.76" - Average rainfall in September:
1.73" - Average rainfall in October:
3.07" - Average rainfall in November:
2.91" - Average rainfall in December:
3.46"
The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days
Willimantic, CT
- Average rainfall days in January:
9.1 days - Average rainfall days in February:
9.7 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
16.6 days
- Average rainfall days in July:
17 days - Average rainfall days in August:
16.4 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
14.2 days - Average rainfall days in November:
10.8 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.1 days).
Average snowfall
Willimantic, CT
- Average snowfall in January:
2.91" - Average snowfall in February:
4.33" - Average snowfall in March:
4.41" - Average snowfall in April:
0.31" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is March (4.41").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Willimantic, CT
- Average snowfall days in January:
8.3 days - Average snowfall days in February:
7.9 days - Average snowfall days in March:
7.3 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 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
5.5 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Willimantic, CT
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
5h and 0min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 6min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 18min - Average sunshine in June:
9h and 12min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 18min - Average sunshine in September:
8h and 36min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days
Willimantic, CT
- Average sunshine days in January:
16.2 days - Average sunshine days in February:
13 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
12.6 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
11.1 days - Average sunshine days in September:
14.6 days - Average sunshine days in October:
14.5 days - Average sunshine days in November:
17.2 days - Average sunshine days in December:
15.2 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.8 days).
Average UV index
Willimantic, 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
Willimantic, CT
The months with the most cloud cover are February, March, May and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Willimantic, CT
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).
