January weather forecastDonnan, IA
January
Weather in January
January, like December, is another subzero cold winter month in Donnan, Iowa, with an average temperature varying between 23.7°F (-4.6°C) and 10.9°F (-11.7°C).Temperature
Donnan's coldest month, January, registers temperatures that range from a high of 23.7°F (-4.6°C) to a low of 10.9°F (-11.7°C).Humidity
January and February, with an average relative humidity of 88%, are the most humid months.Rainfall
The month with the least rainfall in Donnan is January, when the rain falls for 4.2 days and typically collects 1.06" (27mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In January, it is snowing for 11.5 days. Throughout January, 4.69" (119mm) of snow is accumulated. Throughout the year, in Donnan, there are 47.1 snowfall days, and 19.96" (507mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 27min.On the first day of January, sunrise is at 7:38 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:18 pm CST.
Sunshine
The month with the least sunshine in Donnan is January, with an average of 3.6h of sunshine.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In January, the average maximum UV index of 1 translates into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Donnan, IA
- Average high temperature in January: 23.7°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in January: 10.9°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure in January
Donnan, IA
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in January
Donnan, IA
- Average wind speed in January: 10.5mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in January
Donnan, IA
- Average humidity in January: 88%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Donnan, IA
- Average rainfall in January: 1.06"
The wettest month (with the highest rainfall) is June (4.45").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in January
Donnan, IA
- Average rainfall days in January: 4.2 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in January
Donnan, IA
- Average snowfall in January: 4.69"
The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Donnan, IA
- Average snowfall days in January: 11.5 days
The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Donnan, IA
- Average daylight in January: 9h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 3h and 36min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in January
Donnan, IA
- Average sunshine days in January: 17.2 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (8.9 days).
Average UV index in January
Donnan, IA
- Average UV index in January: 1
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in January
Donnan, IA
- Average cloud cover in January: 62
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in January
Donnan, IA
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
