Climate and monthly weather forecastFairfield, CT
Climate and monthly weather forecast
The climate of Fairfield
Positioned in the northeastern United States, Fairfield, Connecticut manifests a humid subtropical climate, as per the Köppen climate classification, bearing the identifier Cfa. Throughout the calendar, weather parameters reveal a wide spectrum of conditions, ranging from low temperatures in the colder months to a prominent presence of humidity and comparatively higher temperatures during the warmer months.A contrasting dip and rise trend paints the scene with temperatures, with the mercury dropping to an average low of 26.6°F (-3°C) reaching until 33.3°F (0.7°C) in the heart of winter and ascending to a peak around 81°F (27.2°C) during the pinnacle of summer. Upholding relatively high levels from 72% to 76% the humidity ratio remains fairly consistent year-round.
Rainfall in Fairfield unfurls with a fairly even distribution from 2.48" (63mm) to 4.21" (107mm) with the months of July and December receiving the highest rainfall respectively, alluding to no pronounced dry season. The city is not spared from the winter's snowfall, receiving up to 2.8" (71mm) of snow in the earlier part of the year, primarily from January to April.
The best time to visit Fairfield
Analyzing the climatological data suggests that the prime time to tread the streets of Fairfield would align with the warmer seasons. Months from May to August present itself with maximum daylight, basking the town with anywhere from 14.5 hours to 15.1 hours. Accentuating this, the period from June to August underscores an average peek on the UV Index scale with a level of 6. With temperatures ranging from 64.9°F (18.3°C) to 81°F (27.2°C), these months also offer gentle winds in the region of 6.8mph (10.9km/h) to 7.8mph (12.6km/h).The worst time to visit Fairfield
The unfavorable time to set foot in Fairfield would coincide with the town's encounter with winter from November to February. During these months, temperatures plunge to chilling low averages from 26.6°F (-3°C) to 41.9°F (5.5°C) while experiencing the least amount of sunshine, merely ranging from 4.8 hours to 5.7 hours per day. Though snowfall is limited in these months, the city is frequently subjected to chilly winds reaching a maximum of 10.2mph (16.4km/h) to 11mph (17.7km/h), adding an extra layer of discomfort to the already severe cold.Spring weather in Fairfield
Spring welcomes Fairfield with a subtle increase in temperature from 44.2°F (6.8°C) to 64.9°F (18.3°C) on average. During this period, spanning from March to May, the town is doused in an average of 2.91" (74mm) to 3.15" (80mm) of rainfall. The gusts of wind decline to a soothing 10.2mph (16.4km/h) to 7.8mph (12.6km/h), complementing the sprightly season. The daylight extends from 12 hours to 14.5 hours, paving the way for longer days.Summer weather in Fairfield
Summer bestows an average high temperature between 73.8°F (23.2°C) and 81°F (27.2°C) upon Fairfield. This perch of the year, ranging from June to August, brings warmth to the city, with humidity levels oscillating around 74% to 76%. Despite minimal rainfall, ranging down to 3.11" (79mm) to 3.82" (97mm), there is ample daylight from 14.8 hours to 15.1 hours that ensures a pleasantly sunny day.Autumn weather in Fairfield
Autumn, demarcated from September to November, defines an inviting transitional period between the hot summer and cold winter, with temperature decreasing gradually from 73°F (22.8°C) to 50.9°F (10.5°C). Rainfall sees a dip to around 2.56" (65mm) in September but escalates up to 3.54" (90mm) by November. While the daylight hours shrink from 12.5 hours to 9.9 hours, the gusty winds gain momentum, picking up speed from 7.8mph (12.6km/h) to 9.9mph (15.9km/h).Winter weather in Fairfield
Winter in Fairfield is characterized by cold and frosty conditions as temperatures plummet from 41.9°F (5.5°C) to 26.6°F (-3°C). The town receives 2.13" (54mm) to 2.8" (71mm) of snowfall during the start of the year. The daylight fades away to about 9.3 hours to 9.6 hours, while the wind speed consistently remains around 10.5mph (16.9km/h), transforming the town into a chilly winter scene. This period also sees a relatively lower UV Index, with values dropping to 2.Weather in January
The month of January in Fairfield, Connecticut, welcomes the coldest time of the year, noticeably colder than December and a clear precursor to February. One thing locals get acclimated to during this month is the steady rise in daylight hours from 9.6h to 10.7h, a signal of the transitioning seasons. Weather in January »Weather in February
Despite the lengthening days in Fairfield, February remains firmly in the grip of winter, with the cold from January persisting but with signs of a slight warmth compared to the previous month. The city's winter landscape is frequently adorned with frost, an indication of the low temperatures still prevalent. Weather in February »Weather in March
In March, the weather visibly begins to shake off the winter chill. Fairfield, Connecticut, gets a noticeable uptick in temperature, and the snow begins to recede, giving way to increased rain. Daylight hours continue to rise to an average of 12 hours, leading to longer days. Weather in March »Weather in April
April marks the arrival of Spring in Fairfield, Connecticut, as the frosty grip of winter relaxes and the warmer temperatures of March continue to rise. Evenings are less biting, and the greenery starts to exhibit the vigor of the changing seasons. Weather in April »Weather in May
Fairfield, Connecticut, fully embraces the call of Spring in May. With the winter chill a distant memory, the city glistens under the warm rays, bringing vibrance and color. Rainfall is common, contributing to the lushness that envelops the environment, awakening the diverse flora. Weather in May »Weather in June
The beginning of June embodies the start of Summer in Fairfield, Connecticut. The month is marked by long days, vibrant flora, and steadily soaring temperatures. Sun worshippers get their fill as June ushers in the most extended daylight hours of the year, up to 15.1h. Weather in June »Weather in July
July is the epitome of summer in Fairfield, Connecticut, with sunshine, heat, and longer daylight hours. The warmer weather invites people outside to enjoy the city's parks and beaches. Despite the high temperatures, cool breezes from the Long Island Sound provide respite from the heat. Weather in July »Weather in August
August in Fairfield, Connecticut, is akin to a slightly milder continuation of July, as the scorching summer heat begins to show signs of cooling off. The days, although still long, start to see a decrease in daylight hours, hinting at the impending end of summer. Weather in August »Weather in September
The Fall season begins to unfold in September in Fairfield, Connecticut with subtle changes in the city's foliage. The temperature steadily cools down from the summer highs, and the days gradually become shorter. With the transition into fall, local fauna shifts patterns, and the city takes on a slightly less lively but still beautiful complexion. Weather in September »Weather in October
As the foliage in Fairfield, Connecticut, changes to hues of gold and red, October brings clear signs of the Fall season progressing towards its peak. The season's visual spectacle is complemented by cooler temperatures and shorter days compared to September. Weather in October »Weather in November
November in Fairfield, Connecticut, is marked by a significant drop in temperature, transitioning from the mildness of October towards the colder winter. The increasingly chilly November winds carry loose leaves away, and fewer daylight hours start to hint at the incoming winter. Weather in November »Weather in December
December is synonymous with the arrival of winter in Fairfield, Connecticut, with the cold intensifying from the chilly November weather. Light snowfall begins to cover the local landscape, providing the city with a festive, wintery appearance. Weather in December »Updated: Feb 10, 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
With average high and low temperatures of 36.1°F (2.3°C) and 26.6°F (-3°C) respectively, January is Fairfield's coldest month.
January is the month with the least rainfall in Fairfield, Connecticut. Rain falls for 9.4 days and accumulates 2.48" (63mm) of precipitation.
Throughout the year, in Fairfield, there are 170.1 rainfall days, and 37.76" (959mm) of precipitation is accumulated.
January through April, November and December are months with snowfall.
In Fairfield, Connecticut, during the entire year, snow falls for 24.9 days and aggregates up to 9.41" (239mm) of snow.
The months with the lowest UV index in Fairfield are January through March, November and December, with an average maximum UV index of 2.
The months with the least sunshine in Fairfield, Connecticut, are February and December, with an average of 4.8h of sunshine.
March is the month with the most snowfall. Snow falls for 5.3 days and accumulates 2.8" (71mm) of snow.
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 Fairfield, Connecticut.
The months with the highest humidity in Fairfield are May and June, with an average relative humidity of 76%.
May through October are months without snowfall.
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.
With average high temperatures of 81°F (27.2°C) and lows of 68.5°F (20.3°C), July is the warmest month.
With an average of 10.6h of sunshine, July has the most sunshine of the year.
December is the month with the most rainfall in Fairfield, Connecticut. Rain falls for 12.7 days and accumulates 4.21" (107mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 18min of daylight.
Average temperature
Fairfield, CT
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (36.1°F).
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure
Fairfield, 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:
30.02"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
Fairfield, CT
- Average wind speed in January:
10.5mph - Average wind speed in February:
10.1mph - Average wind speed in March:
10.2mph - Average wind speed in April:
9.4mph - Average wind speed in May:
7.8mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
6.8mph - Average wind speed in September:
7.8mph - Average wind speed in October:
9.4mph - Average wind speed in November:
9.9mph - Average wind speed in December:
10.2mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity
Fairfield, CT
The months with the highest relative humidity are May and June (76%).
The months with the lowest relative humidity are April and November (72%).
Average rainfall
Fairfield, CT
- Average rainfall in January:
2.48" - Average rainfall in February:
2.56" - Average rainfall in March:
2.91" - Average rainfall in April:
3.15" - Average rainfall in May:
3.03" - Average rainfall in June:
3.11"
- Average rainfall in July:
3.82" - Average rainfall in August:
3.35" - Average rainfall in September:
2.56" - Average rainfall in October:
3.54" - Average rainfall in November:
3.03" - Average rainfall in December:
4.21"
The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is January (2.48").
Average rainfall days
Fairfield, CT
- Average rainfall days in January:
9.4 days - Average rainfall days in February:
10.5 days - Average rainfall days in March:
13.2 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
17.2 days
- Average rainfall days in July:
18.1 days - Average rainfall days in August:
17 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
14.7 days - Average rainfall days in November:
10.7 days - Average rainfall days in December:
12.7 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (9.4 days).
Average snowfall
Fairfield, CT
The month with the highest snowfall is March (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Fairfield, CT
- Average snowfall days in January:
7.1 days - Average snowfall days in February:
7 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
0.6 days - Average snowfall days in May:
0 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:
0.5 days - Average snowfall days in December:
4.3 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Fairfield, CT
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 42min - 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 6min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 30min - Average sunshine in May:
8h and 48min - 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:
9h and 0min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 42min - Average sunshine in December:
4h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days
Fairfield, CT
- Average sunshine days in January:
16.6 days - Average sunshine days in February:
12.7 days - Average sunshine days in March:
13.3 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
11.2 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
11.3 days - Average sunshine days in September:
14.2 days - Average sunshine days in October:
14.5 days - Average sunshine days in November:
17.1 days - Average sunshine days in December:
14.7 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (11.2 days).
Average UV index
Fairfield, 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
Fairfield, CT
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility
Fairfield, 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).
