January weather forecast
Irvington, NJ

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Weather in January

In Irvington, New Jersey, the weather takes on the chilly characteristics of a typical northeastern winter during January. As the coldest month of the year, lows often dip to a frigid 23.9°F (-4.5°C). The city witnesses the most significant snowfall, with approximately 0.91" (23mm) of snow occurring on average. The days are shortened, contributing to the winter spell, with sunlight that rarely lasts for much longer than 9.7 hours a day. Wind speeds remain steady, aggravating the cold conditions and emphasizing the importance of keeping warm with appropriate winter wear.

Temperature

The coldest temperatures in Irvington occur during January, when averages reach a peak of 35.2°F (1.8°C) and a low of 23.9°F (-4.5°C).

Humidity

In Irvington, the average relative humidity in January is 75%.

Rainfall

In Irvington, in January, it is raining for 6.5 days, with typically 0.87" (22mm) of accumulated precipitation. In Irvington, during the entire year, the rain falls for 132.4 days and collects up to 15.63" (397mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Irvington. In Irvington, New Jersey, in January, snow falls for 4.8 days, with typically accumulated 0.91" (23mm) of snow. In Irvington, during the entire year, snow falls for 18.9 days and aggregates up to 5.08" (129mm) of snow.

Daylight

In January, the average length of the day is 9h and 39min.
On the first day of January, sunrise is at 7:20 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:12 pm EST.

Sunshine

In January, the average sunshine in Irvington, New Jersey, 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 Irvington. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In January, the maximum UV index of 2 suggests these recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

What time of the year is the coldest in Irvington?

The coldest period is January, when temperatures fluctuate between an average high of 35.2°F (1.8°C) and a low of 23.9°F (-4.5°C).

How cold is January in Irvington?

The high-temperature, in January, in Irvington, records 35.2°F (1.8°C), while the low-temperature is 23.9°F (-4.5°C).

What is the average humidity in January in Irvington?

In January, the average relative humidity in Irvington is 75%.

How many days does it rain in January in Irvington?

In January, in Irvington, New Jersey, the rain falls for 6.5 days. Throughout January, 0.87" (22mm) of precipitation is accumulated.

How much does it snow in Irvington in January?

In Irvington, New Jersey, in January, snow falls for 4.8 days, with typically accumulated 0.91" (23mm) of snow.

What is the average length of the day in January in Irvington?

In January, the average day length in Irvington, New Jersey, is 9h and 39min.

When are sunrise and sunset in January in Irvington?

On the first day of January in Irvington, sunrise is at 7:20 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:12 pm EST.

How long on average sun shines in January in Irvington?

In Irvington, New Jersey, the average sunshine duration in January is 5.1h.

What are the months with the lowest UV index in Irvington?

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

How high is the UV index in January in Irvington?

In Irvington, New Jersey, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
41°F 5°C
35.2°F 1.8°C
38.1°F 3.4°C
Average low temperature
30.9°F -0.6°C
23.9°F -4.5°C
25.5°F -3.6°C
Average pressure
30.07" 764mmHg
30.06" 764mmHg
30.03" 763mmHg
Average wind speed
7.9mph 12.7km/h
8.3mph 13.4km/h
8.2mph 13.2km/h
Average max. wind speed
8.5mph 13.7km/h
8.9mph 14.3km/h
8.8mph 14.2km/h
Average wind speed gusts
12.2mph 19.6km/h
12.7mph 20.4km/h
12.8mph 20.6km/h
Average humidity
77%
75%
77%
Average rainfall
1.57" 40mm
0.87" 22mm
0.83" 21mm
Average rainfall days
9.3
6.5
7.3
Average snowfall
1.06" 27mm
0.91" 23mm
1.14" 29mm
Average snowfall days
3.4
4.8
5.2
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
4h 5min
5h 1min
4h 4min
Average sunshine days
19.1
20.4
17.1
Average UV index
2
2
2
Average cloud cover
48%
44%
48%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Irvington, NJ

Average temperature in January - Irvington, NJ
  • Average high temperature in January: 35.2°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in January: 23.9°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

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Average pressure in January
Irvington, NJ

Average pressure in January - Irvington, NJ
  • Average pressure in January: 30.06"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in January
Irvington, NJ

Average wind speed in January - Irvington, NJ
  • Average wind speed in January: 8.3mph

The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

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Average humidity in January
Irvington, NJ

Average humidity in January - Irvington, NJ
  • Average humidity in January: 75%

The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is August (70%).

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Average rainfall in January
Irvington, NJ

Average rainfall in January - Irvington, NJ
  • Average rainfall in January: 0.87"

The wettest month (with the highest rainfall) is July (2.01").
The driest month (with the least rainfall) is February (0.83").

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Average rainfall days in January
Irvington, NJ

Average rainfall days in January - Irvington, NJ
  • Average rainfall days in January: 6.5 days

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (6.5 days).

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Average snowfall in January
Irvington, NJ

Average snowfall in January - Irvington, NJ
  • Average snowfall in January: 0.91"

The month with the highest snowfall is March (1.65").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Irvington, NJ

Average snowfall days in January - Irvington, NJ
  • Average snowfall days in January: 4.8 days

The month with the highest number of snowfall days is February (5.2 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
Irvington, NJ

Average daylight in January / Average sunshine in January - Irvington, NJ
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in January
Irvington, NJ

Average sunshine days in January - Irvington, NJ
  • Average sunshine days in January: 20.4 days

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (13.8 days).

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Average UV index in January
Irvington, NJ

Average UV index in January - Irvington, NJ
  • 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
Irvington, NJ

Average cloud cover in January - Irvington, NJ
  • Average cloud cover in January: 44

The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in January
Irvington, NJ

Average visibility in January - Irvington, NJ
  • 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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Irvington, New Jersey, USA

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