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
In Pomona, January is the month with the lowest recorded average temperatures, measuring a high of 39.6°F (4.2°C) and a low of 26.2°F (-3.2°C).Humidity
In January, the average relative humidity in Pomona, Illinois, is 76%.Rainfall
In Pomona, in January, it is raining for 9.4 days, with typically 2.17" (55mm) of accumulated precipitation. In Pomona, during the entire year, the rain falls for 158.6 days and collects up to 34.69" (881mm) of precipitation.Snowfall
Months with snowfall in Pomona are January through April, October through December. In Pomona, during January, snow falls for 4.8 days and regularly aggregates up to 1.22" (31mm) of snow. In Pomona, during the entire year, snow falls for 15.9 days and aggregates up to 5.71" (145mm) of snow.Daylight
In January, the average length of the day in Pomona is 9h and 55min.On the first day of January in Pomona, sunrise is at 7:12 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 5:19 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 4.7h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Pomona. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 during January translates into the following directions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Pomona?
How cold does it get in Pomona in January?
What is the average humidity in January in Pomona?
How many days does it rain in January in Pomona?
How much does it snow in Pomona in January?
How many hours of daylight does Pomona have in January?
What time are sunrise and sunset in January in Pomona?
What is the month with the least sunshine in Pomona?
How many hours of sunshine does Pomona have in January?
What is the month with the lowest UV index in Pomona?
What is the UV index reading in January in Pomona?
Average temperature in January
Pomona, IL
- Average high temperature in January: 39.6°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in January: 26.2°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in January
Pomona, IL
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Pomona, IL
- Average wind speed in January: 9.4mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in January
Pomona, IL
- Average humidity in January: 76%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Pomona, IL
- Average rainfall in January: 2.17"
The wettest month (with the highest rainfall) is April (4.49").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in January
Pomona, IL
- Average rainfall days in January: 9.4 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in January
Pomona, IL
- Average snowfall in January: 1.22"
The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Pomona, IL
- Average snowfall days in January: 4.8 days
The months with the highest number of snowfall days are January and February (4.8 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
Pomona, IL
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January: 4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in January
Pomona, IL
- Average sunshine days in January: 17.7 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in January
Pomona, IL
- 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
Pomona, IL
- Average cloud cover in January: 49
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility in January
Pomona, IL
- 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).
Pomona, Illinois, USA
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