Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Rahway's January weather reaches an average high of 36.5°F (2.5°C) and an average low of 25.7°F (-3.5°C), making it the coldest month.Humidity
The average relative humidity in January is 74%.Rainfall
In Rahway, New Jersey, in January, it is raining for 4.9 days, with typically 0.51" (13mm) of accumulated precipitation. Throughout the year, there are 110.2 rainfall days, and 8.9" (226mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Rahway, during January, snow falls for 3.8 days and regularly aggregates up to 0.35" (9mm) of snow. Throughout the year, there are 14.5 snowfall days, and 1.85" (47mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 40min.On the first day of the month, sunrise is at 7:20 am and sunset at 4:40 pm. On the last day of January, in Rahway, sunrise is at 7:07 am and sunset at 5:13 pm EST.
Sunshine
The average sunshine in January in Rahway is 5.2h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 2 during January translates into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. To guard against the harmful effects of the Sun, minimize exposure during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
What part of the year is the coldest in Rahway?
How cold is January in Rahway?
What is the average humidity in January in Rahway?
How many days does it rain in January in Rahway?
How much does it snow in Rahway in January?
How many hours of daylight does Rahway have in January?
When is the sunrise / sunset in January in Rahway?
How many hours of sunshine does Rahway have in January?
What are the months with the lowest UV index in Rahway?
What is the UV index reading in January in Rahway?
Average temperature in January
Rahway, NJ
- Average high temperature in January: 36.5°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in January: 25.7°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in January
Rahway, 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
Rahway, NJ
- Average wind speed in January: 9.6mph
The windiest months (with the highest average wind speed) are January and March (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity in January
Rahway, NJ
- Average humidity in January: 74%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (72%).
Average rainfall in January
Rahway, NJ
- Average rainfall in January: 0.51"
The wettest month (with the highest rainfall) is July (1.22").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days in January
Rahway, NJ
- Average rainfall days in January: 4.9 days
The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is January (4.9 days).
Average snowfall in January
Rahway, NJ
- Average snowfall in January: 0.35"
The month with the highest snowfall is March (0.83").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Rahway, NJ
- Average snowfall days in January: 3.8 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Rahway, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in January
Rahway, NJ
- Average sunshine days in January: 22.6 days
The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is July (14.8 days).
Average UV index in January
Rahway, 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
Rahway, NJ
- Average cloud cover in January: 44
The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in January
Rahway, 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).
Rahway, New Jersey, USA
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