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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, is a freezing cold winter month in Grantville, Connecticut, with an average temperature fluctuating between 30.4°F (-0.9°C) and 18°F (-7.8°C). January is the coldest month, with an average high-temperature of 30.4°F (-0.9°C) and an average low-temperature of 18°F (-7.8°C). Weather in January »
Weather in February
The last month of the winter, February, is a wintry month in Grantville, Connecticut, with an average temperature varying between 33.8°F (1°C) and 19.2°F (-7.1°C). Grantville's average high-temperature marks a cold 33.8°F (1°C) with the advent of February, closely mirroring that of the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is still a cold month in Grantville, Connecticut, with an average temperature varying between 41.9°F (5.5°C) and 26.8°F (-2.9°C). The beginning of March signals a minor rise in the average high-temperature, moving from a wintry 33.8°F (1°C) in February to a still cold 41.9°F (5.5°C). Weather in March »
Weather in April
April in Grantville, Connecticut, is a moderate spring month, with an average temperature ranging between min 37.6°F (3.1°C) and max 55.4°F (13°C). Noticing a change, the average high-temperature during April moves from March's icy 41.9°F (5.5°C) to a mild 55.4°F (13°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Grantville, Connecticut, with an average temperature ranging between min 47.3°F (8.5°C) and max 67.1°F (19.5°C). Grantville's weather in May shows a rise in the average high-temperature, moving up from April's moderate 55.4°F (13°C) to a still refreshing 67.1°F (19.5°C). Weather in May »
Weather in June
June, the first month of the summer in Grantville, is a warm month, with an average temperature fluctuating between 55°F (12.8°C) and 74.8°F (23.8°C). In June, the average high-temperature marginally rises from a comfortable 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, the same as June, is another warm summer month in Grantville, Connecticut, with an average temperature ranging between max 81°F (27.2°C) and min 61.2°F (16.2°C). In Grantville, the average temperatures in July are the highest, with a peak at 81°F (27.2°C) and a low of 61.2°F (16.2°C). The heat index for July is estimated at a tropical 86°F (30°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Grantville, Connecticut, with temperature in the range of an average high of 78.8°F (26°C) and an average low of 59.7°F (15.4°C). August's arrival brings an average high-temperature of a still moderately hot 78.8°F (26°C), slightly deviating from July's 81°F (27.2°C). Weather in August »
Weather in September
September, the first month of the autumn in Grantville, is also an agreeable month, with an average temperature varying between 71.8°F (22.1°C) and 53.1°F (11.7°C). The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's warm 78.8°F (26°C) to a pleasant 71.8°F (22.1°C). Weather in September »
Weather in October
October, the same as September, in Grantville, Connecticut, is another refreshing autumn month, with an average temperature varying between 58.5°F (14.7°C) and 43.9°F (6.6°C). A shift in the average high-temperature occurs in October, reducing from a pleasant 71.8°F (22.1°C) in September to a moderate 58.5°F (14.7°C). Weather in October »
Weather in November
November, the last month of the autumn in Grantville, is another chilly month, with an average temperature ranging between max 46.4°F (8°C) and min 33.3°F (0.7°C). The arrival of November corresponds with a reduction in the average high-temperature, down from October's moderate 58.5°F (14.7°C) to a chilly 46.4°F (8°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Grantville, Connecticut, with temperature in the range of an average high of 36.1°F (2.3°C) and an average low of 25.3°F (-3.7°C). The beginning of December involves a decrease in the average high-temperature, transitioning from a chilly 46.4°F (8°C) in November to a cold 36.1°F (2.3°C). Weather in December »
Updated: Aug 24, 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 is the coldest time of year?
January proves to be the coldest month, recording an average maximum temperature of 30.4°F (-0.9°C) and a minimum temperature of 18°F (-7.8°C).
How many days does it rain?
In Grantville, during the entire year, the rain falls for 157.2 days and collects up to 33.31" (846mm) of precipitation.
When does it snow?
Months with snowfall in Grantville, Connecticut, are January through May, October through December.
How much does it snow?
In Grantville, during the entire year, snow falls for 45.3 days and aggregates up to 25.63" (651mm) of snow.
What is the month with the lowest UV index?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the most humid month?
The most humid month is February, with an average relative humidity of 82%.
When does it snow the most?
The month with the most snowfall is February, when snow falls for 11.3 days and typically aggregates up to 6.38" (162mm) of snow.
What is the month with the least sunshine in Grantville?
The month with the least sunshine is February, with an average of 4.2h 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 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?
April is the least humid month in Grantville, with an average relative humidity of 74%.
When it does not snow?
June through September are months without snowfall.
When are the longest days in Grantville?
The month with the longest days is June, with an average of 15h and 12min of daylight.
When is the highest UV index in Grantville?
The month with the highest UV index is June, with an average maximum UV index of 6.
What time of the year is the hottest?
July registers as the month with the average highest temperatures, reaching 81°F (27.2°C) at its peak and 61.2°F (16.2°C) at the lowest.
What month has the most sunshine?
With an average of 10h of sunshine, July has the most sunshine of the year.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 13 days and typically collects 2.09" (53mm) of precipitation.
What is the wettest month?
The months with the most rainfall are October and December, with an average 3.31" (84mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 12min of daylight.
Average temperature
Grantville, CT
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.4°F).
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure
Grantville, CT
- Average pressure in January:
30.03"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.97"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:
30.06"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.06"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
Grantville, CT
- Average wind speed in January:
8.6mph - Average wind speed in February:
8.5mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8mph - Average wind speed in May:
6.5mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.8mph - Average wind speed in October:
7mph - Average wind speed in November:
7.6mph - Average wind speed in December:
8.1mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity
Grantville, CT
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (74%).
Average rainfall
Grantville, CT
- Average rainfall in January:
2.24" - Average rainfall in February:
2.17" - Average rainfall in March:
2.64" - Average rainfall in April:
2.99" - Average rainfall in May:
2.95" - Average rainfall in June:
2.87"
- Average rainfall in July:
2.95" - Average rainfall in August:
2.8" - Average rainfall in September:
2.09" - Average rainfall in October:
3.31" - Average rainfall in November:
2.99" - Average rainfall in December:
3.31"
The wettest months (with the highest rainfall) are October and December (3.31").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days
Grantville, CT
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
7.1 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
15.6 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
16.7 days - Average rainfall days in August:
15.8 days - Average rainfall days in September:
13 days - Average rainfall days in October:
14.7 days - Average rainfall days in November:
10.1 days - Average rainfall days in December:
10.4 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is February (7.1 days).
Average snowfall
Grantville, CT
- Average snowfall in January:
5.12" - Average snowfall in February:
6.38" - Average snowfall in March:
5.79" - Average snowfall in April:
1.3" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.38").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Grantville, CT
- Average snowfall days in January:
11.1 days - Average snowfall days in February:
11.3 days - Average snowfall days in March:
8.8 days - Average snowfall days in April:
2.5 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:
0.5 days - Average snowfall days in November:
3.2 days - Average snowfall days in December:
7.7 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Grantville, CT
- Average daylight in January:
9h and 3min - 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 4min - 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 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
4h and 4min - Average sunshine in February:
4h and 1min - Average sunshine in March:
5h and 4min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 0min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 2min - Average sunshine in October:
5h and 2min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days
Grantville, CT
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
12.5 days - Average sunshine days in March:
13.3 days - Average sunshine days in April:
12 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
13.4 days - Average sunshine days in August:
13.7 days - Average sunshine days in September:
15.3 days - Average sunshine days in October:
14 days - Average sunshine days in November:
16.5 days - Average sunshine days in December:
15.5 days
The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is June (11.4 days).
Average UV index
Grantville, CT
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Grantville, CT
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility
Grantville, CT
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Grantville, Connecticut, USA
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