Climate and monthly weather forecastTrumbull, CT
Climate and monthly weather forecast
Weather in January
January, like December, in Trumbull, Connecticut, is an icy winter month, with an average temperature fluctuating between 35.2°F (1.8°C) and 26.1°F (-3.3°C). January stands out as Trumbull's coldest month, with an average high-temperature of 35.2°F (1.8°C) and a low-temperature of 26.1°F (-3.3°C). Weather in January »Weather in February
February, the last month of the winter in Trumbull, is also an icy month, with an average temperature varying between 37.8°F (3.2°C) and 27°F (-2.8°C). With the advent of February, Trumbull experiences an average high-temperature of a still cold 37.8°F (3.2°C), mirroring a close resemblance to the previous month. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Trumbull, Connecticut, with an average temperature ranging between max 44.2°F (6.8°C) and min 33.3°F (0.7°C). As March arrives, Trumbull's weather shows a minor increase in high-temperatures, edging from February's wintry 37.8°F (3.2°C) to a frosty 44.2°F (6.8°C). Weather in March »Weather in April
April is a cool spring month in Trumbull, Connecticut, with an average temperature fluctuating between 42.8°F (6°C) and 54.9°F (12.7°C). Trumbull's transition into April is marked by a temperature shift, moving from a frosty 44.2°F (6.8°C) in March to a fresh 54.9°F (12.7°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Trumbull, Connecticut, with an average temperature fluctuating between 52.2°F (11.2°C) and 65.8°F (18.8°C). As April transitions into May, a change in temperatures is observed, with average highs moving from a cool 54.9°F (12.7°C) to a comfortable 65.8°F (18.8°C). Weather in May »Weather in June
June, the first month of the summer in Trumbull, is a warm month, with an average temperature ranging between min 60.6°F (15.9°C) and max 73.9°F (23.3°C). June introduces a minor temperature shift, with average high-temperatures adjusting from May's refreshing 65.8°F (18.8°C) to a moderately hot 73.9°F (23.3°C). Weather in June »Weather in July
July, like June, in Trumbull, Connecticut, is a moderately hot summer month, with an average temperature varying between 81.1°F (27.3°C) and 67.8°F (19.9°C). The highest temperatures are recorded in July, with averages reaching a high of 81.1°F (27.3°C) and a low of 67.8°F (19.9°C). The heat index value for July is appraised at a tropical 86°F (30°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Trumbull, Connecticut, with an average temperature fluctuating between 80.1°F (26.7°C) and 67.3°F (19.6°C). The onset of August marks an average high-temperature of a still moderately hot 80.1°F (26.7°C), hardly differing from July's 81.1°F (27.3°C). Weather in August »Weather in September
September, the first month of the autumn in Trumbull, is still a pleasant month, with an average temperature ranging between max 72.7°F (22.6°C) and min 60.8°F (16°C). With the onset of September, the average high-temperature subtly recedes from August's warm 80.1°F (26.7°C) to an agreeable 72.7°F (22.6°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Trumbull, Connecticut, with an average temperature varying between 62.1°F (16.7°C) and 51.3°F (10.7°C). The start of October comes with a reduction in the average high-temperature, receding from an agreeable 72.7°F (22.6°C) in September to a comfortable 62.1°F (16.7°C). Weather in October »Weather in November
November, the last month of the autumn in Trumbull, is also a fresh month, with temperature in the range of an average low of 40.1°F (4.5°C) and an average high of 50.7°F (10.4°C). The arrival of November corresponds with a reduction in the average high-temperature, down from October's enjoyable 62.1°F (16.7°C) to a cool 50.7°F (10.4°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Trumbull, Connecticut, with an average temperature varying between 41.7°F (5.4°C) and 32.9°F (0.5°C). In the transition to December, Trumbull observes a drop in the average high-temperature, moving from a cool 50.7°F (10.4°C) in November to a wintry 41.7°F (5.4°C). Weather in December »Updated: Aug 4, 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
January is the month when Trumbull sees the average lowest temperatures, with a high of 35.2°F (1.8°C) and a low of 26.1°F (-3.3°C).
Throughout the year, there are 170.6 rainfall days, and 37.09" (942mm) of precipitation is accumulated.
Months with snowfall in Trumbull are January through April, November and December.
In Trumbull, Connecticut, during the entire year, snow falls for 24.4 days and aggregates up to 9.41" (239mm) of snow.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
February, May and June, with an average relative humidity of 76%, are most humid months.
February is the month with the most snowfall. Snow falls for 7.3 days and accumulates 2.87" (73mm) of snow.
The month with the least sunshine in Trumbull is February, with an average of 4.8h of sunshine.
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.
April and November, with an average relative humidity of 72%, are the least humid months.
In Trumbull, snow does not fall in May through October.
June has the longest days of the year, with an average of 15h and 6min of daylight.
June through August, with an average maximum UV index of 6, are months with the highest UV index in Trumbull.
July is Trumbull's warmest month, registering average high temperatures of 81.1°F (27.3°C) and lows of 67.8°F (19.9°C).
The month with the most sunshine is July, with an average of 10.6h of sunshine.
September is the month with the least rainfall. Rain falls for 13.5 days and accumulates 2.4" (61mm) of precipitation.
The month with the most rainfall is December, when the rain falls for 12.8 days and typically aggregates up to 4.13" (105mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Trumbull, CT
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (35.2°F).
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure
Trumbull, 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
Trumbull, CT
- Average wind speed in January:
10.3mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.9mph - Average wind speed in April:
9.3mph - Average wind speed in May:
7.7mph - Average wind speed in June:
7mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.7mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.3mph - Average wind speed in November:
9.8mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity
Trumbull, CT
The months with the highest relative humidity are February, May and June (76%).
The months with the lowest relative humidity are April and November (72%).
Average rainfall
Trumbull, CT
- Average rainfall in January:
2.48" - Average rainfall in February:
2.56" - Average rainfall in March:
2.87" - Average rainfall in April:
3.15" - Average rainfall in May:
2.95" - Average rainfall in June:
3.07"
- Average rainfall in July:
3.62" - Average rainfall in August:
3.23" - Average rainfall in September:
2.4" - Average rainfall in October:
3.54" - Average rainfall in November:
3.07" - Average rainfall in December:
4.13"
The wettest month (with the highest rainfall) is December (4.13").
The driest month (with the least rainfall) is September (2.4").
Average rainfall days
Trumbull, CT
- Average rainfall days in January:
9.4 days - Average rainfall days in February:
10.7 days - Average rainfall days in March:
13.1 days - Average rainfall days in April:
15.6 days - Average rainfall days in May:
17.5 days - Average rainfall days in June:
17 days
- Average rainfall days in July:
18 days - Average rainfall days in August:
17.3 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
15 days - Average rainfall days in November:
10.7 days - Average rainfall days in December:
12.8 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (9.4 days).
Average snowfall
Trumbull, CT
The month with the highest snowfall is February (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Trumbull, CT
- Average snowfall days in January:
6.9 days - Average snowfall days in February:
7.3 days - Average snowfall days in March:
5.1 days - Average snowfall days in April:
0.4 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:
0.1 days - Average snowfall days in November:
0.7 days - Average snowfall days in December:
3.7 days
The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Trumbull, 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 18min - 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 18min
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 18min).
- Average sunshine in January:
5h and 12min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 30min - Average sunshine in September:
8h and 54min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Trumbull, CT
- Average sunshine days in January:
17 days - Average sunshine days in February:
12.3 days - Average sunshine days in March:
13.3 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
11.2 days - Average sunshine days in September:
13 days - Average sunshine days in October:
14.3 days - Average sunshine days in November:
16.7 days - Average sunshine days in December:
14.5 days
The month with the most sunshine days is January (17 days).
The month with the least sunshine days is June (10.7 days).
Average UV index
Trumbull, 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
Trumbull, CT
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility
Trumbull, CT
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
