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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, in Seymour, Connecticut, is an icy winter month, with an average temperature fluctuating between 23.2°F (-4.9°C) and 33.8°F (1°C). January tends to be the coldest month, with temperatures averaging a daily high of 33.8°F (1°C) and a low of 23.2°F (-4.9°C). Weather in January »
Weather in February
The last month of the winter, February, is also a wintry month in Seymour, Connecticut, with an average temperature ranging between min 24.1°F (-4.4°C) and max 37°F (2.8°C). Seymour registers an average high-temperature of a still icy 37°F (2.8°C) at the commencement of February, closely related to the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Seymour, Connecticut, with an average temperature varying between 44.1°F (6.7°C) and 30.9°F (-0.6°C). March's arrival brings a slight change in high-temperatures, adjusting from a wintry 37°F (2.8°C) in February to a chilly 44.1°F (6.7°C). Weather in March »
Weather in April
April in Seymour, Connecticut, is a mild spring month, with an average temperature varying between 41.2°F (5.1°C) and 56.3°F (13.5°C). Seymour in April experiences an increase in the average high-temperature, moving from March's chilly 44.1°F (6.7°C) to a moderate 56.3°F (13.5°C). Weather in April »
Weather in May
May, the last month of the spring in Seymour, is a refreshing month, with temperature in the range of an average high of 67.1°F (19.5°C) and an average low of 50.5°F (10.3°C). As April gives way to May, the average high-temperature displays an increase, moving from a refreshing 56.3°F (13.5°C) 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 Seymour, Connecticut, with an average temperature fluctuating between 75.7°F (24.3°C) and 58.6°F (14.8°C). As May transitions into June, Seymour notices a gentle rise in the average high-temperature, transitioning from an enjoyable 67.1°F (19.5°C) to a moderately hot 75.7°F (24.3°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Seymour, Connecticut, with temperature in the range of an average high of 82°F (27.8°C) and an average low of 65.3°F (18.5°C). In Seymour, July is the month with the highest recorded average temperatures, measuring a high of 82°F (27.8°C) and a low of 65.3°F (18.5°C). For July, the heat index is estimated at a tropical 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Seymour, is another warm month, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 80.4°F (26.9°C). August's average high-temperature is a still warm 80.4°F (26.9°C), maintaining a close comparison with July's 82°F (27.8°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Seymour, Connecticut, with an average temperature fluctuating between 73.4°F (23°C) and 57.7°F (14.3°C). The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a moderately hot 80.4°F (26.9°C) in August to a still warm 73.4°F (23°C). Weather in September »
Weather in October
October, like September, in Seymour, Connecticut, is another comfortable autumn month, with an average temperature ranging between min 48.6°F (9.2°C) and max 61.5°F (16.4°C). During Seymour's transition into October, the average high-temperature lessens, moving from a moderately hot 73.4°F (23°C) in September to a comfortable 61.5°F (16.4°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Seymour, Connecticut, with an average temperature varying between 37.6°F (3.1°C) and 49.1°F (9.5°C). November implies a gentle temperature shift, with average high-temperatures reducing from October's comfortable 61.5°F (16.4°C) to a frosty 49.1°F (9.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Seymour, Connecticut, with an average temperature varying between 29.7°F (-1.3°C) and 39.9°F (4.4°C). The onset of December brings a small change in high-temperatures, falling from a chilly 49.1°F (9.5°C) in November to an icy 39.9°F (4.4°C). Weather in December »
Updated: Jul 7, 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 are the coldest months?
January is the coldest month, exhibiting average temperatures of 33.8°F (1°C) at the peak and 23.2°F (-4.9°C) at the base.
What is the driest month in Seymour?
January and February are months with the least rain when the rain falls for 5.3 days and typically aggregates up to 0.47" (12mm) of rain.
How much does it rain?
Throughout the year, there are 118.8 rainfall days, and 9.61" (244mm) of precipitation is accumulated.
When does it snow?
January through March, November and December are months with snowfall.
How many days does it snow?
Throughout the year, there are 18.8 snowfall days, and 2.05" (52mm) of snow is accumulated.
When is the lowest UV index in Seymour?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Seymour, Connecticut.
What is the most humid month in Seymour?
February is the most humid month, with an average relative humidity of 78%.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 4.7h 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, with an average relative humidity of 72%.
When it does not snow?
In Seymour, snow does not fall in April through October.
When are the longest days?
The month with the longest days is June, with an average of 15h and 6min of daylight.
What are the months with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What is the hottest time of year?
Seymour's July weather, with an average high temperature of 82°F (27.8°C) and an average low temperature of 65.3°F (18.5°C), tends to be the warmest of the year.
What is the rainiest month?
July is the month with the most rainfall. Rain falls for 14.3 days and accumulates 1.22" (31mm) of precipitation.
What are the months with the most sunshine?
The months with the most sunshine are July and August, with an average of 10.4h of sunshine.
What is the snowiest month?
December is the month with the most snowfall. Snow falls for 3.3 days and accumulates 0.55" (14mm) of snow.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 12min of daylight.
Average temperature
Seymour, CT
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.8°F).
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure
Seymour, CT
- Average pressure in January:
30.04"Hg - Average pressure in February:
30.02"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:
30.05"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
Seymour, CT
- Average wind speed in January:
8.9mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.7mph - Average wind speed in April:
8.2mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.1mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.6mph - Average wind speed in September:
6.4mph - Average wind speed in October:
7.7mph - Average wind speed in November:
8.2mph - Average wind speed in December:
8.6mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity
Seymour, CT
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall
Seymour, CT
- Average rainfall in January:
0.47" - Average rainfall in February:
0.47" - Average rainfall in March:
0.59" - Average rainfall in April:
0.83" - Average rainfall in May:
0.87" - Average rainfall in June:
0.94"
- Average rainfall in July:
1.22" - Average rainfall in August:
0.87" - Average rainfall in September:
0.55" - Average rainfall in October:
0.87" - Average rainfall in November:
0.83" - Average rainfall in December:
1.1"
The wettest month (with the highest rainfall) is July (1.22").
The driest months (with the least rainfall) are January and February (0.47").
Average rainfall days
Seymour, CT
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
6.4 days - Average rainfall days in March:
9 days - Average rainfall days in April:
11.1 days - Average rainfall days in May:
12.6 days - Average rainfall days in June:
12.9 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
12.1 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
9.2 days - Average rainfall days in November:
7 days - Average rainfall days in December:
8.4 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is January (5.3 days).
Average snowfall
Seymour, CT
The month with the highest snowfall is December (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Seymour, CT
- Average snowfall days in January:
5.2 days - Average snowfall days in February:
5.8 days - Average snowfall days in March:
3.4 days - Average snowfall days in April:
0.3 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 days - Average snowfall days in November:
0.7 days - Average snowfall days in December:
3.3 days
The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Seymour, 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 3min - 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 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
5h and 1min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Seymour, CT
- Average sunshine days in January:
22.6 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
19.4 days - Average sunshine days in April:
16.9 days - Average sunshine days in May:
15.5 days - Average sunshine days in June:
14.5 days
- Average sunshine days in July:
13.9 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
17.9 days - Average sunshine days in October:
18.8 days - Average sunshine days in November:
21.1 days - Average sunshine days in December:
18.7 days
The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is July (13.9 days).
Average UV index
Seymour, 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
Seymour, CT
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility
Seymour, CT
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Seymour, Connecticut, USA
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