January weather forecastWesterville, OH
January
Weather in January
In Westerville, Ohio, the beginning of the year brings winter weather conditions. January features higher humidity rates compared to the national average with an uptick in pressure levels. Snow is commonplace this time of year, signalling the height of winter, with a cumulative snowfall of 1.65" (42mm) throughout the month. The wind speed is relatively high compared to the rest of the months, indicating windy weather. Daylight hours are considerably shorter.Temperature
Westerville experiences its lowest temperatures in January, with an average peak of 32.5°F (0.3°C) and a low of 20.7°F (-6.3°C).Humidity
With an average relative humidity of 83%, January is the most humid month in Westerville.Rainfall
In Westerville, during January, the rain falls for 8.4 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, there are 149 rainfall days, and 18.5" (470mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 11.7 days and typically aggregates up to 1.65" (42mm) of snow.Daylight
The average length of the day in January is 9h and 42min.On the first day of January in Westerville, sunrise is at 7:53 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:48 pm EST.
Sunshine
January has the least sunshine of the year in Westerville, with an average of 3.5h of sunshine.UV index
The months with the lowest UV index in Westerville are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. It's recommended to limit sun exposure when its radiation is at its peak during midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Westerville, OH
- Average high temperature in January: 32.5°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in January: 20.7°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in January
Westerville, OH
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Westerville, OH
- Average wind speed in January: 9.7mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in January
Westerville, OH
- Average humidity in January: 83%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Westerville, OH
- Average rainfall in January: 1.06"
The wettest month (with the highest rainfall) is June (2.36").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in January
Westerville, OH
- Average rainfall days in January: 8.4 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in January
Westerville, OH
- Average snowfall in January: 1.65"
The month with the highest snowfall is January (1.65").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Westerville, OH
- Average snowfall days in January: 11.7 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Westerville, OH
- 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 24min).
- Average sunshine in January: 3h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in January
Westerville, OH
- Average sunshine days in January: 13.6 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in January
Westerville, OH
- 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, November and December (UV index 2).
Average cloud cover in January
Westerville, OH
- Average cloud cover in January: 63
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Westerville, OH
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
