Climate and monthly weather forecastHanover, CT
Climate and monthly weather forecast
Weather in January
January, like December, in Hanover, Connecticut, is an icy winter month, with an average temperature fluctuating between 21.6°F (-5.8°C) and 33.4°F (0.8°C). January, with average temperatures reaching a high of 33.4°F (0.8°C) and a low of 21.6°F (-5.8°C), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Hanover, is also a wintry month, with an average temperature fluctuating between 36.7°F (2.6°C) and 22.5°F (-5.3°C). Hanover's weather in February indicates an average high-temperature of a still cold 36.7°F (2.6°C), nearly consistent with the 33.4°F (0.8°C) of January. Weather in February »Weather in March
March, the first month of the spring in Hanover, is a chilly month, with an average temperature fluctuating between 29.7°F (-1.3°C) and 43.7°F (6.5°C). Hanover in March observes a minor temperature shift, with average high-temperatures adjusting 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 in Hanover, Connecticut, is a mild spring month, with an average temperature varying between 55.9°F (13.3°C) and 39.6°F (4.2°C). April's arrival is marked by an increase in the 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
May, the last month of the spring in Hanover, is an enjoyable month, with an average temperature ranging between max 67.1°F (19.5°C) and min 48.9°F (9.4°C). Hanover in May sees a temperature change, with average high-temperatures moving from a moderate 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 moderately hot month in Hanover, Connecticut, with temperature in the range of an average low of 56.3°F (13.5°C) and an average high of 74.8°F (23.8°C). As Hanover welcomes June, the average high-temperature displays a subtle shift, adjusting from a refreshing 67.1°F (19.5°C) in May to a moderately hot 74.8°F (23.8°C). Weather in June »Weather in July
July, like June, in Hanover, Connecticut, is a moderately hot summer month, with an average temperature ranging between min 63°F (17.2°C) and max 81.9°F (27.7°C). Hanover's warmest weather arrives in July, when temperatures average a high of 81.9°F (27.7°C) and a low of 63°F (17.2°C). For July, the heat index is estimated at a tropical 87.8°F (31°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Hanover, Connecticut, with an average temperature fluctuating between 62.2°F (16.8°C) and 80.2°F (26.8°C). As Hanover welcomes August, the average high-temperature is noted at a still warm 80.2°F (26.8°C), closely aligning with the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Hanover, Connecticut, with an average temperature fluctuating between 73.2°F (22.9°C) and 55.4°F (13°C). September's arrival subtly correlates with a reduction in the average high-temperature, down 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, like September, in Hanover, Connecticut, is another enjoyable autumn month, with an average temperature fluctuating between 46.4°F (8°C) and 61°F (16.1°C). A decrease in the average high-temperature is observed during October, shifting from an agreeable 73.2°F (22.9°C) in September to a comfortable 61°F (16.1°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Hanover, Connecticut, 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 commencement of November involves a temperature shift, with the average high-temperature dropping 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 Hanover, is also an icy month, with temperature in the range of an average high of 39.4°F (4.1°C) and an average low of 28.6°F (-1.9°C). During the transition into December, Hanover observes a decrease 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 »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Hanover, 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
Hanover, 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
Hanover, 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
Hanover, 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
Hanover, 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
Hanover, 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
Hanover, 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
Hanover, 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
Hanover, 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 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - 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 54min - Average daylight in December:
9h and 12min
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:
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
Hanover, 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
Hanover, 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
Hanover, 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
Hanover, 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).





