December weather forecastVan Horne, IA
December
Weather in December
The first month of the winter, December, is also a wintry month in Van Horne, Iowa, with an average temperature fluctuating between 21.7°F (-5.7°C) and 32.7°F (0.4°C).Temperature
Van Horne in December experiences a subtle temperature decline, with average high-temperatures reducing from a chilly 45.1°F (7.3°C) in November to a cold 32.7°F (0.4°C). An average low-temperature of 21.7°F (-5.7°C) is recorded during the nights in December in Van Horne.Humidity
In December, the average relative humidity is 81%.Rainfall
In Van Horne, in December, it is raining for 6.4 days, with typically 1.5" (38mm) of accumulated precipitation. Throughout the year, in Van Horne, Iowa, there are 139 rainfall days, and 29.49" (749mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 8.5 days. Throughout December, 2.64" (67mm) of snow is accumulated. In Van Horne, Iowa, during the entire year, snow falls for 39 days and aggregates up to 16.69" (424mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:17 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:47 pm CST.
Sunshine
In Van Horne, the average sunshine in December is 4.4h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Van Horne. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Van Horne, IA
- Average high temperature in December: 32.7°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (25.9°F).
- Average low temperature in December: 21.7°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 (13.5°F).
Average pressure in December
Van Horne, IA
- Average pressure in December: 30.11"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 December
Van Horne, IA
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in December
Van Horne, IA
- Average humidity in December: 81%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Van Horne, IA
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in December
Van Horne, IA
- Average rainfall days in December: 6.4 days
The month with the highest number of rainy days is June (19.3 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in December
Van Horne, IA
- Average snowfall in December: 2.64"
The month with the highest snowfall is January (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Van Horne, IA
- Average snowfall days in December: 8.5 days
The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Van Horne, IA
- Average daylight in December: 9h and 12min
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 December: 4h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Van Horne, IA
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is June (8.4 days).
Average UV index in December
Van Horne, IA
- Average UV index in December: 2
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Van Horne, IA
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in December
Van Horne, IA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
