January weather forecastJolley, IA
January
Weather in January
January, the same as December, in Jolley, Iowa, is a freezing cold winter month, with an average temperature varying between 25.2°F (-3.8°C) and 12.7°F (-10.7°C).Temperature
Jolley's January weather, with an average high temperature of 25.2°F (-3.8°C) and an average low temperature of 12.7°F (-10.7°C), tends to be the coldest of the year.Humidity
With an average relative humidity of 85%, January is the most humid month.Rainfall
January is the month with the least rainfall. Rain falls for 4 days and accumulates 0.91" (23mm) of precipitation.Snowfall
Months with snowfall in Jolley, Iowa, are January through May, October through December. In January, it is snowing for 9.3 days. Throughout January, 4.41" (112mm) of snow is accumulated. Throughout the year, there are 39.2 snowfall days, and 17.64" (448mm) of snow is accumulated.Daylight
The average length of the day in January in Jolley is 9h and 29min.On the first day of January, sunrise is at 7:48 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 5:30 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 4.1h of sunshine.UV index
The average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 during January translates into the following directions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Jolley, IA
- Average high temperature in January: 25.2°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in January: 12.7°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in January
Jolley, IA
- 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 (29.88"Hg).
Average wind speed in January
Jolley, IA
- Average wind speed in January: 10.9mph
The windiest months (with the highest average wind speed) are January and April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in January
Jolley, IA
- Average humidity in January: 85%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and October (68%).
Average rainfall in January
Jolley, IA
- Average rainfall in January: 0.91"
The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in January
Jolley, IA
- Average rainfall days in January: 4 days
The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is February (3 days).
Average snowfall in January
Jolley, IA
- Average snowfall in January: 4.41"
The month with the highest snowfall is February (5.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Jolley, IA
- Average snowfall days in January: 9.3 days
The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Jolley, IA
- Average daylight in January: 9h and 30min
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 6min).
- Average sunshine in January: 4h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in January
Jolley, IA
- Average sunshine days in January: 19 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is June (9.9 days).
Average UV index in January
Jolley, IA
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in January
Jolley, IA
- Average cloud cover in January: 55
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in January
Jolley, IA
- 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).
