Climate and monthly weather forecastGrosvenor Dale, CT
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Grosvenor Dale, Connecticut, with an average temperature fluctuating between 31.5°F (-0.3°C) and 19.6°F (-6.9°C). January, with its average high-temperature of 31.5°F (-0.3°C) and an average low-temperature of 19.6°F (-6.9°C), holds the record as the coldest month. Weather in January »Weather in February
February, the last month of the winter in Grosvenor Dale, is a wintry month, with an average temperature varying between 35.1°F (1.7°C) and 20.7°F (-6.3°C). February welcomes an average high-temperature of an icy 35.1°F (1.7°C), not much different from the preceding month. Weather in February »Weather in March
The first month of the spring, March, is also a wintry month in Grosvenor Dale, Connecticut, with an average temperature fluctuating between 42.4°F (5.8°C) and 28.2°F (-2.1°C). The arrival of March brings a soft temperature shift, with the average high-temperature nudging from a cold 35.1°F (1.7°C) in February to a still wintry 42.4°F (5.8°C). Weather in March »Weather in April
April is a refreshing spring month in Grosvenor Dale, Connecticut, with temperature in the range of an average low of 38.1°F (3.4°C) and an average high of 55.6°F (13.1°C). As Grosvenor Dale enters April, the average high-temperature increases from the an icy 42.4°F (5.8°C) of March to a moderate 55.6°F (13.1°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Grosvenor Dale, Connecticut, with an average temperature fluctuating between 48°F (8.9°C) and 67.1°F (19.5°C). The rise of average high-temperatures is seen in May, with an increase from a refreshing 55.6°F (13.1°C) in April to an enjoyable 67.1°F (19.5°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Grosvenor Dale, Connecticut, with temperature in the range of an average low of 55°F (12.8°C) and an average high of 74.3°F (23.5°C). Grosvenor Dale in June observes a minor temperature shift, with average high-temperatures adjusting from a comfortable 67.1°F (19.5°C) in May to a warm 74.3°F (23.5°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Grosvenor Dale, Connecticut, with an average temperature varying between 61.7°F (16.5°C) and 81.3°F (27.4°C). Grosvenor Dale notes the warmest temperatures in July, with a high average of 81.3°F (27.4°C) and a low of 61.7°F (16.5°C). The heat index value for July is evaluated 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 Grosvenor Dale, Connecticut, with an average temperature ranging between max 79.5°F (26.4°C) and min 60.4°F (15.8°C). In the transition from July to August, Grosvenor Dale reports an average high-temperature of a still warm 79.5°F (26.4°C), indicating a close resemblance to the prior month. Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Grosvenor Dale, Connecticut, with an average temperature fluctuating between 53.8°F (12.1°C) and 72°F (22.2°C). Grosvenor Dale's September weather features a light decline in high-temperatures, reducing from a moderately hot 79.5°F (26.4°C) in August to an agreeable 72°F (22.2°C). Weather in September »Weather in October
October, the same as September, in Grosvenor Dale, Connecticut, is a moderate autumn month, with an average temperature fluctuating between 45.1°F (7.3°C) and 59.9°F (15.5°C). As September shifts into October, a slight alteration in temperatures is observed, with average highs reducing from a pleasant 72°F (22.2°C) to a mild 59.9°F (15.5°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Grosvenor Dale, Connecticut, with an average temperature varying between 34.5°F (1.4°C) and 47.3°F (8.5°C). In Grosvenor Dale, the beginning of November is marked by a lowered average high-temperature, shifting from October's refreshing 59.9°F (15.5°C) to a frosty 47.3°F (8.5°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Grosvenor Dale, Connecticut, with an average temperature varying between 27°F (-2.8°C) and 37.2°F (2.9°C). The beginning of December involves a decrease in the average high-temperature, transitioning from a frosty 47.3°F (8.5°C) in November to a wintry 37.2°F (2.9°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Grosvenor Dale, CT
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.5°F).
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure
Grosvenor Dale, CT
- Average pressure in January:
30.02"Hg - Average pressure in February:
30"Hg - Average pressure in March:
30.03"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:
30.08"Hg - Average pressure in December:
30.04"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
Grosvenor Dale, CT
- Average wind speed in January:
9mph - Average wind speed in February:
8.9mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.4mph - Average wind speed in May:
7mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.2mph - Average wind speed in October:
7.5mph - Average wind speed in November:
8mph - Average wind speed in December:
8.6mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity
Grosvenor Dale, CT
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (72%).
Average rainfall
Grosvenor Dale, CT
- Average rainfall in January:
2.44" - Average rainfall in February:
2.28" - Average rainfall in March:
2.76" - Average rainfall in April:
2.91" - Average rainfall in May:
2.44" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.72" - Average rainfall in August:
2.52" - Average rainfall in September:
1.81" - Average rainfall in October:
2.76" - Average rainfall in November:
2.83" - Average rainfall in December:
3.11"
The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days
Grosvenor Dale, CT
- Average rainfall days in January:
7.8 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
11.6 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
16 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
12.4 days - Average rainfall days in October:
13.9 days - Average rainfall days in November:
10 days - Average rainfall days in December:
10.9 days
The month with the highest number of rainy days is July (16.3 days).
The months with the least rainy days are January and February (7.8 days).
Average snowfall
Grosvenor Dale, CT
- Average snowfall in January:
3.58" - Average snowfall in February:
5.08" - Average snowfall in March:
5.08" - Average snowfall in April:
1.38" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The months with the highest snowfall are February and March (5.08").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Grosvenor Dale, CT
- Average snowfall days in January:
8.8 days - Average snowfall days in February:
9 days - Average snowfall days in March:
9.1 days - Average snowfall days in April:
1.6 days - Average snowfall days in May:
0.1 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:
2.5 days - Average snowfall days in December:
6.1 days
The month with the highest number of snowfall days is March (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Grosvenor Dale, CT
- Average daylight in January:
9h and 30min - 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:
4h and 48min - Average sunshine in February:
4h and 30min - Average sunshine in March:
5h and 42min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 6min - Average sunshine in June:
8h and 54min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 0min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days
Grosvenor Dale, CT
- Average sunshine days in January:
16.3 days - Average sunshine days in February:
13.9 days - Average sunshine days in March:
13.4 days - Average sunshine days in April:
13.5 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
13.4 days
- Average sunshine days in July:
12.9 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
15.9 days - Average sunshine days in October:
14.5 days - Average sunshine days in November:
17.2 days - Average sunshine days in December:
15.5 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (12.9 days).
Average UV index
Grosvenor Dale, CT
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Grosvenor Dale, CT
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility
Grosvenor Dale, CT
The months with the highest visibility are March, April, November and December (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and October (5mi).





