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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 Harwinton, Connecticut, with an average temperature varying between 19.2°F (-7.1°C) and 31.3°F (-0.4°C). The coldest period is January, when temperatures fluctuate between an average high of 31.3°F (-0.4°C) and a low of 19.2°F (-7.1°C). Weather in January »
Weather in February
The last month of the winter, February, is a wintry month in Harwinton, Connecticut, with temperature in the range of an average high of 34.3°F (1.3°C) and an average low of 20.5°F (-6.4°C). The arrival of February coincides with an average high-temperature of a wintry 34.3°F (1.3°C), indicating a minimal shift from January's 31.3°F (-0.4°C). Weather in February »
Weather in March
March, the first month of the spring in Harwinton, is still a cold month, with temperature in the range of an average high of 42.4°F (5.8°C) and an average low of 27.9°F (-2.3°C). March witnesses a subtle temperature ascent, adjusting from a wintry 34.3°F (1.3°C) in February to a still cold 42.4°F (5.8°C). Weather in March »
Weather in April
April in Harwinton, Connecticut, is a moderate spring month, with temperature in the range of an average low of 37.9°F (3.3°C) and an average high of 55.8°F (13.2°C). The start of April brings a rise in the average high-temperature, moving from an icy 42.4°F (5.8°C) in March to a mild 55.8°F (13.2°C). Weather in April »
Weather in May
The last month of the spring, May, is a comfortable month in Harwinton, Connecticut, with an average temperature fluctuating between 48°F (8.9°C) and 67.5°F (19.7°C). May comes with an increase, with the average high-temperature moving from a mild 55.8°F (13.2°C) in April to a comfortable 67.5°F (19.7°C). Weather in May »
Weather in June
June, the first month of the summer in Harwinton, is a moderately hot month, with temperature in the range of an average high of 75°F (23.9°C) and an average low of 55°F (12.8°C). The start of June brings a subtle shift in the average high-temperature, edging up from May's refreshing 67.5°F (19.7°C) to a moderately hot 75°F (23.9°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Harwinton, Connecticut, with an average temperature varying between 61.3°F (16.3°C) and 81.3°F (27.4°C). In Harwinton, July records the highest average temperatures, peaking at 81.3°F (27.4°C) and reaching a low of 61.3°F (16.3°C). In July, the heat index is calculated to be a hot 86°F (30°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Harwinton, Connecticut, with an average temperature ranging between min 59.9°F (15.5°C) and max 79.3°F (26.3°C). The advent of August brings an average high-temperature of a still moderately hot 79.3°F (26.3°C), exhibiting minor difference from the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Harwinton, Connecticut, with an average temperature varying between 53.4°F (11.9°C) and 72°F (22.2°C). Harwinton's September weather shows a modest shift in high-temperatures, falling from August's moderately hot 79.3°F (26.3°C) to a pleasant 72°F (22.2°C). Weather in September »
Weather in October
October, the same as September, in Harwinton, Connecticut, is a moderate autumn month, with an average temperature ranging between max 59.4°F (15.2°C) and min 44.6°F (7°C). Observing a mild shift, the average high-temperature during October reduces from September's pleasant 72°F (22.2°C) to a refreshing 59.4°F (15.2°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Harwinton, Connecticut, with temperature in the range of an average high of 46.8°F (8.2°C) and an average low of 33.8°F (1°C). Harwinton's November weather features a mild decline in high-temperatures, reducing from a refreshing 59.4°F (15.2°C) in October to a chilly 46.8°F (8.2°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Harwinton, Connecticut, with an average temperature varying between 25.9°F (-3.4°C) and 36.9°F (2.7°C). December's arrival corresponds with a decrease in average high-temperatures, from November's frosty 46.8°F (8.2°C) to a cold 36.9°F (2.7°C). Weather in December »
[Resources]Frequently asked questions
What time of the year is the coldest in Harwinton?
January, characterized by an average high temperature of 31.3°F (-0.4°C) and a low temperature of 19.2°F (-7.1°C), is generally the coldest month.
How many days does it rain in Harwinton?
Throughout the year, there are 157.7 rainfall days, and 32.72" (831mm) of precipitation is accumulated.
When does it snow in Harwinton?
Months with snowfall in Harwinton are January through May, October through December.
How much does it snow in Harwinton?
In Harwinton, during the entire year, snow falls for 40 days and aggregates up to 20.55" (522mm) of snow.
What are the months with the lowest UV index in Harwinton?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Harwinton.
What is the most humid month in Harwinton?
With an average relative humidity of 82%, February is the most humid month in Harwinton.
What is the snowiest month in Harwinton?
The month with the most snowfall in Harwinton is February, when snow falls for 10.3 days and typically aggregates up to 5.28" (134mm) of snow.
What is the month with the least sunshine in Harwinton?
February has the least sunshine of the year in Harwinton, with an average of 4.4h of sunshine.
When is Daylight Saving Time (DST) in Harwinton?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Harwinton, 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 in Harwinton?
With an average relative humidity of 73%, April is the least humid month in Harwinton.
When it does not snow in Harwinton?
June through September are months without snowfall in Harwinton, Connecticut.
When are the longest days in Harwinton?
June has the longest days of the year, with an average of 15h and 12min of daylight.
What is the month with the highest UV index in Harwinton?
The month with the highest UV index is June, with an average maximum UV index of 6.
What part of the year is the hottest in Harwinton?
July, with an average high of 81.3°F (27.4°C) and a low of 61.3°F (16.3°C), signifies the warmest month of the year in Harwinton, Connecticut.
What is the month with the most sunshine in Harwinton?
The months with the most sunshine in Harwinton are July and August, with an average of 10.1h of sunshine.
What is the driest month in Harwinton?
September is the month with the least rainfall in Harwinton, Connecticut. Rain falls for 12.4 days and accumulates 2.01" (51mm) of precipitation.
What is the wettest month in Harwinton?
The month with the most rainfall in Harwinton, Connecticut, is December, when the rain falls for 10.3 days and typically aggregates up to 3.35" (85mm) of precipitation.
What is the month with the shortest days in Harwinton?
With an average of 9h and 12min of daylight, December has the shortest days of the year in Harwinton, Connecticut.
Average temperature
Harwinton, 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 (31.3°F).
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure
Harwinton, CT
- Average pressure in January:
30.04"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30.05"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:
30.06"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
Harwinton, CT
- Average wind speed in January:
8.4mph - Average wind speed in February:
8.2mph - Average wind speed in March:
8.3mph - Average wind speed in April:
7.8mph - Average wind speed in May:
6.4mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5.1mph - Average wind speed in September:
5.7mph - Average wind speed in October:
7mph - Average wind speed in November:
7.5mph - Average wind speed in December:
8mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity
Harwinton, CT
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (73%).
Average rainfall
Harwinton, CT
- Average rainfall in January:
2.2" - Average rainfall in February:
2.13" - Average rainfall in March:
2.6" - Average rainfall in April:
3.03" - Average rainfall in May:
2.83" - Average rainfall in June:
2.8"
- Average rainfall in July:
2.99" - Average rainfall in August:
2.64" - Average rainfall in September:
2.01" - Average rainfall in October:
3.27" - Average rainfall in November:
2.87" - Average rainfall in December:
3.35"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days
Harwinton, CT
- Average rainfall days in January:
8.2 days - Average rainfall days in February:
8.4 days - Average rainfall days in March:
13.2 days - Average rainfall days in April:
15.6 days - Average rainfall days in May:
16.7 days - Average rainfall days in June:
16.6 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
12.4 days - Average rainfall days in October:
14.5 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
10.3 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (8.2 days).
Average snowfall
Harwinton, CT
- Average snowfall in January:
4.25" - Average snowfall in February:
5.28" - Average snowfall in March:
4.61" - Average snowfall in April:
1.3" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Harwinton, CT
- Average snowfall days in January:
9.2 days - Average snowfall days in February:
10.3 days - Average snowfall days in March:
8.2 days - Average snowfall days in April:
1.9 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:
0.5 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
7.2 days
The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Harwinton, 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 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 5min - Average sunshine in February:
4h and 2min - Average sunshine in March:
5h and 5min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 1min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 3min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days
Harwinton, CT
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
12.6 days - Average sunshine days in March:
13.4 days - Average sunshine days in April:
12 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
15.7 days - Average sunshine days in October:
13.6 days - Average sunshine days in November:
16.9 days - Average sunshine days in December:
15.7 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is June (11.8 days).
Average UV index
Harwinton, 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
Harwinton, CT
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility
Harwinton, CT
The months with the highest visibility are April, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and October (5mi).
Harwinton, Connecticut, USA
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