December weather forecastGatesville, IA
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Gatesville, Iowa, with an average temperature fluctuating between 31.1°F (-0.5°C) and 20.8°F (-6.2°C).Temperature
The onset of December comes with a shift in the average high-temperature, falling from a frosty 44.1°F (6.7°C) in November to a freezing cold 31.1°F (-0.5°C). Gatesville's nighttime temperature in December drops to an average of 20.8°F (-6.2°C).Humidity
In December, the average relative humidity in Gatesville is 83%.Rainfall
In December, the rain falls for 6.6 days. Throughout December, 1.5" (38mm) of precipitation is accumulated. In Gatesville, during the entire year, the rain falls for 140.6 days and collects up to 30" (762mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Gatesville. In December, in Gatesville, Iowa, it is snowing for 10 days. Throughout December, 3.43" (87mm) of snow is accumulated. In Gatesville, during the entire year, snow falls for 43.9 days and aggregates up to 18.43" (468mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:17 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:44 pm CST.
Sunshine
In Gatesville, the average sunshine in December is 4.2h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 1 transforms into these recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Gatesville, IA
- Average high temperature in December: 31.1°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in December: 20.8°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in December
Gatesville, 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
Gatesville, IA
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in December
Gatesville, IA
- Average humidity in December: 83%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Gatesville, IA
- Average rainfall in December: 1.5"
The wettest months (with the highest rainfall) are May and June (4.37").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in December
Gatesville, IA
- Average rainfall days in December: 6.6 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in December
Gatesville, IA
- Average snowfall in December: 3.43"
The month with the highest snowfall is January (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Gatesville, IA
- Average snowfall days in December: 10 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Gatesville, IA
- Average daylight in December: 9h and 6min
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 December: 4h and 12min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Gatesville, IA
- Average sunshine days in December: 17.2 days
The months with the most sunshine days are January, October and November (17.5 days).
The month with the least sunshine days is June (8.2 days).
Average UV index in December
Gatesville, IA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Gatesville, IA
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in December
Gatesville, 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).





