January weather forecastWatchung, NJ
January
Weather in January
January, the same as December, is another cold winter month in Watchung, New Jersey, with an average temperature fluctuating between 36°F (2.2°C) and 23.9°F (-4.5°C).Temperature
January is Watchung's coldest month, registering average high temperatures of 36°F (2.2°C) and lows of 23.9°F (-4.5°C).Humidity
In Watchung, New Jersey, the average relative humidity in January is 75%.Rainfall
In Watchung, New Jersey, in January, during 9.5 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. Throughout the year, there are 160.7 rainfall days, and 30.12" (765mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Watchung, in January, snow falls for 7.3 days, with typically accumulated 2.09" (53mm) of snow. Throughout the year, in Watchung, there are 25.4 snowfall days, and 10.31" (262mm) of snow is accumulated.Daylight
In Watchung, the average length of the day in January is 9h and 40min.On the first day of the month, sunrise is at 7:21 am and sunset at 4:41 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:13 pm EST.
Sunshine
In January, the average sunshine in Watchung is 5.1h.UV index
The months with the lowest UV index in Watchung are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In January, the maximum UV index of 2 translates into these guidelines:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Watchung, NJ
- Average high temperature in January: 36°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (36°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).
Average pressure in January
Watchung, NJ
- Average pressure in January: 30.07"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Watchung, NJ
- Average wind speed in January: 8.8mph
The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in January
Watchung, NJ
- Average humidity in January: 75%
The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April and August (73%).
Average rainfall in January
Watchung, NJ
- Average rainfall in January: 1.97"
The wettest month (with the highest rainfall) is December (3.19").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in January
Watchung, NJ
- Average rainfall days in January: 9.5 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (9.5 days).
Average snowfall in January
Watchung, NJ
- Average snowfall in January: 2.09"
The month with the highest snowfall is March (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Watchung, NJ
- Average snowfall days in January: 7.3 days
The months with the highest number of snowfall days are January and February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Watchung, NJ
- Average daylight in January: 9h and 42min
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 6min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in January
Watchung, NJ
- Average sunshine days in January: 17.3 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in January
Watchung, 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).
Average cloud cover in January
Watchung, NJ
- Average cloud cover in January: 45
The months with the most cloud cover are February, March and December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in January
Watchung, NJ
- Average visibility in January: 6mi
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).
