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
Temperature records mark January as the coldest month, with highs averaging 36°F (2.2°C) and lows at 23.9°F (-4.5°C).Humidity
In January, the average relative humidity is 76%.Rainfall
In Wilmer, in January, during 6.9 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. In Wilmer, during the entire year, the rain falls for 132.3 days and collects up to 13.98" (355mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. The months with the most snowfall are January and February, with an average 0.59" (15mm) of accumulated snow.Daylight
In January, the average length of the day is 9h and 42min.On the first day of the month, sunrise is at 7:24 am and sunset at 4:46 pm. On the last day of January, sunrise is at 7:11 am and sunset at 5:19 pm EST.
Sunshine
In Wilmer, Pennsylvania, the average sunshine in January is 4.8h.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 of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In January, a regular UV index of 2 translates into these guidelines:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is it in January?
What is the average humidity in January?
How much does it rain in January?
When does it snow the most in Wilmer?
How many days does it snow in January?
How many hours of daylight does Wilmer have in January?
When are sunrise and sunset in January?
How many hours of sunshine does Wilmer have in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Wilmer, PA
- Average high temperature in January: 36°F
The warmest month (with the highest average high temperature) is July (85.1°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 (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure in January
Wilmer, PA
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Wilmer, PA
- Average wind speed in January: 8.1mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in January
Wilmer, PA
- Average humidity in January: 76%
The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in January
Wilmer, PA
- Average rainfall in January: 0.87"
The wettest month (with the highest rainfall) is August (1.77").
The driest month (with the least rainfall) is February (0.75").
Average rainfall days in January
Wilmer, PA
- Average rainfall days in January: 6.9 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in January
Wilmer, PA
- Average snowfall in January: 0.59"
The months with the highest snowfall are January and February (0.59").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Wilmer, PA
- Average snowfall days in January: 4.8 days
The month with the highest number of snowfall days is February (4.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Wilmer, PA
- 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 24min).
- Average sunshine in January: 4h and 5min
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
Wilmer, PA
- Average sunshine days in January: 20.7 days
The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in January
Wilmer, PA
- Average UV index in January: 2
The months with the highest UV index are May, 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
Wilmer, PA
- Average cloud cover in January: 46
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in January
Wilmer, PA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Wilmer, Pennsylvania, USA
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