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 Union, Iowa, the lowest temperatures are generally noted in January, averaging a high of 24.4°F (-4.2°C) and a low of 12.2°F (-11°C).Humidity
With an average relative humidity of 87%, January is the most humid month in Union.Rainfall
The months with the least rainfall are January and February Rain falls for 2 days and accumulates 0.24" (6mm) of rain.Snowfall
Months with snowfall are January through April, October through December. In Union, in January, during 7 snowfall days, 0.75" (19mm) of snow is typically accumulated. Throughout the year, in Union, there are 26.6 snowfall days, and 3.03" (77mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 31min.On the first day of January in Union, sunrise is at 7:40 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:24 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 3.9h of sunshine.UV index
The months with the lowest UV index are January, February, October through 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 ordinary individuals.Note: In January, the maximum UV index of 2 transforms into these recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. To cut down UV radiation exposure by about half, sport a wide-brim hat. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
What are the coldest months in Union?
How cold is it in Union in January?
What is the most humid month in Union?
What is the average humidity in January in Union?
What is the driest month in Union?
How much does it rain in Union in January?
How much does it snow in Union in January?
How many hours of daylight does Union have in January?
When is the sunrise / sunset in January in Union?
What is the month with the least sunshine in Union?
How many hours of sunshine does Union have in January?
What is the month with the lowest UV index in Union?
What is the UV index reading in January in Union?
Average temperature in January
Union, IA
- Average high temperature in January: 24.4°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (24.4°F).
- Average low temperature in January: 12.2°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in January
Union, IA
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in January
Union, IA
- Average wind speed in January: 10.8mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in January
Union, IA
- Average humidity in January: 87%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Union, IA
- Average rainfall in January: 0.24"
The wettest month (with the highest rainfall) is May (1.06").
The driest months (with the least rainfall) are January and February (0.24").
Average rainfall days in January
Union, IA
- Average rainfall days in January: 2 days
The month with the highest number of rainy days is May (11.6 days).
The months with the least rainy days are January and February (2 days).
Average snowfall in January
Union, IA
- Average snowfall in January: 0.75"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Union, IA
- Average snowfall days in January: 7 days
The month with the highest number of snowfall days is January (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
Union, IA
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 3h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in January
Union, IA
- Average sunshine days in January: 25.2 days
The month with the most sunshine days is January (25.2 days).
The month with the least sunshine days is June (15.8 days).
Average UV index in January
Union, IA
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in January
Union, IA
- Average cloud cover in January: 58
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in January
Union, IA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Union, Iowa, USA
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