January weather forecast
Fairfield, CT

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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. The winter season pummels the city with snowfall during the month with the daylight cloudy most of the time. Life continues despite the cold with Fairfield inhabitants navigating the icy conditions, with nippy winds averaging at 10.5mph (16.9km/h). January is one of the months with the highest wind gust speed recording an average of 15.7mph (25.3km/h).

Temperature

Fairfield's January weather, with an average high temperature of 36.1°F (2.3°C) and an average low temperature of 26.6°F (-3°C), tends to be the coldest of the year.

Humidity

In January, the average relative humidity in Fairfield is 74%.

Rainfall

January is the month with the least rainfall in Fairfield. Rain falls for 9.4 days and accumulates 2.48" (63mm) of precipitation.

Snowfall

Months with snowfall in Fairfield are January through April, November and December. In Fairfield, in January, during 7.1 snowfall days, 2.13" (54mm) of snow is typically accumulated. In Fairfield, during the entire year, snow falls for 24.9 days and aggregates up to 9.41" (239mm) of snow.

Daylight

In January, the average length of the day is 9h and 37min.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:34 pm. On the last day of January, in Fairfield, sunrise is at 7:04 am and sunset at 5:07 pm EST.

Sunshine

In Fairfield, the average sunshine in January is 5.1h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Fairfield. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In January, the maximum UV index of 2 suggests these recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Frequently asked questions

What part of the year is the coldest in Fairfield?

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.

How cold is it in Fairfield in January?

The average high-temperature, in January, in Fairfield, is 36.1°F (2.3°C), while the average low-temperature is 26.6°F (-3°C).

What is the average humidity in January in Fairfield?

In January, the average relative humidity in Fairfield, Connecticut, is 74%.

What is the driest month in Fairfield?

January is the month with the least rainfall in Fairfield. Rain falls for 9.4 days and accumulates 2.48" (63mm) of precipitation.

How much does it rain in Fairfield in January?

In Fairfield, in January, it is raining for 9.4 days, with typically 2.48" (63mm) of accumulated precipitation.

How many days does it snow in January in Fairfield?

In January, it is snowing for 7.1 days. Throughout January, 2.13" (54mm) of snow is accumulated.

How many hours of daylight does Fairfield have in January?

In Fairfield, Connecticut, the average day length in January is 9h and 37min.

What time are sunrise and sunset in January in Fairfield?

On the first day of January in Fairfield, Connecticut, sunrise is at 7:18 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:07 pm EST.

How long on average sun shines in January in Fairfield?

The average sunshine duration in January in Fairfield is 5.1h.

When is the lowest UV index in Fairfield?

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.

What is the UV index reading in January in Fairfield?

In Fairfield, Connecticut, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
41.9°F 5.5°C
36.1°F 2.3°C
38.3°F 3.5°C
Average low temperature
33.3°F 0.7°C
26.6°F -3°C
27.7°F -2.4°C
Average pressure
30.06" 764mmHg
30.04" 763mmHg
30.02" 763mmHg
Average wind speed
10.2mph 16.4km/h
10.5mph 16.9km/h
10.1mph 16.3km/h
Average max. wind speed
11mph 17.7km/h
11.2mph 18km/h
10.8mph 17.4km/h
Average wind speed gusts
15.2mph 24.5km/h
15.7mph 25.3km/h
15.5mph 24.9km/h
Average humidity
75%
74%
75%
Average rainfall
4.21" 107mm
2.48" 63mm
2.56" 65mm
Average rainfall days
12.7
9.4
10.5
Average snowfall
1.81" 46mm
2.13" 54mm
2.4" 61mm
Average snowfall days
4.3
7.1
7
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
4h 5min
5h 1min
4h 5min
Average sunshine days
14.7
16.6
12.7
Average UV index
2
2
2
Average cloud cover
48%
44%
47%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Fairfield, CT

Average temperature in January - Fairfield, CT
  • Average high temperature in January: 36.1°F

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).

  • Average low temperature in January: 26.6°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).

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Average pressure in January
Fairfield, CT

Average pressure in January - Fairfield, CT
  • Average pressure in January: 30.04"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).

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Average wind speed in January
Fairfield, CT

Average wind speed in January - Fairfield, CT
  • Average wind speed in January: 10.5mph

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).

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Average humidity in January
Fairfield, CT

Average humidity in January - Fairfield, CT
  • Average humidity in January: 74%

The months with the highest relative humidity are May and June (76%).
The months with the lowest relative humidity are April and November (72%).

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Average rainfall in January
Fairfield, CT

Average rainfall in January - Fairfield, CT
  • Average rainfall in January: 2.48"

The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is January (2.48").

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Average rainfall days in January
Fairfield, CT

Average rainfall days in January - Fairfield, CT
  • Average rainfall days in January: 9.4 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).

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Average snowfall in January
Fairfield, CT

Average snowfall in January - Fairfield, CT
  • Average snowfall in January: 2.13"

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").

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Average snowfall days in January
Fairfield, CT

Average snowfall days in January - Fairfield, CT
  • Average snowfall days in January: 7.1 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).

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Average daylight in January /
Average sunshine in January
Fairfield, CT

Average daylight in January / Average sunshine in January - Fairfield, CT
  • Average daylight in January: 9h and 4min

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 1min

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).

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Average sunshine days in January
Fairfield, CT

Average sunshine days in January - Fairfield, CT
  • Average sunshine days in January: 16.6 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).

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Average UV index in January
Fairfield, CT

Average UV index in January - Fairfield, CT
  • Average UV index in January: 2

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).

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Average cloud cover in January
Fairfield, CT

Average cloud cover in January - Fairfield, CT
  • Average cloud cover in January: 44

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in January
Fairfield, CT

Average visibility in January - Fairfield, CT
  • Average visibility in January: 6mi

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).

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Fairfield, Connecticut, USA

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