December weather forecastTraer, IA
December
Weather in December
December, the first month of the winter in Traer, is also a subzero cold month, with an average temperature ranging between max 31.8°F (-0.1°C) and min 21.2°F (-6°C).Temperature
The commencement of December indicates a shift in the average high-temperature, receding from November's chilly 45°F (7.2°C) to a freezing cold 31.8°F (-0.1°C). Traer experiences an average low-temperature of 21.2°F (-6°C) in the month of December.Humidity
In Traer, Iowa, the average relative humidity in December is 81%.Rainfall
In December, in Traer, the rain falls for 6.7 days. Throughout December, 1.54" (39mm) of precipitation is accumulated. In Traer, during the entire year, the rain falls for 147.7 days and collects up to 31.06" (789mm) of precipitation.Snowfall
Months with snowfall in Traer are January through May, October through December. In Traer, during December, snow falls for 10 days and regularly aggregates up to 3.23" (82mm) of snow. Throughout the year, in Traer, there are 46.3 snowfall days, and 17.6" (447mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:19 am and sunset at 4:38 pm. On the last day of December, in Traer, sunrise is at 7:38 am and sunset at 4:48 pm CST.
Sunshine
In December, the average sunshine is 4.4h.UV index
The months with the lowest UV index in Traer are January, February, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Traer, IA
- Average high temperature in December: 31.8°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in December: 21.2°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in December
Traer, 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
Traer, IA
- Average wind speed in December: 10.2mph
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
Traer, IA
- Average humidity in December: 81%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Traer, IA
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is May (4.72").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in December
Traer, IA
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in December
Traer, IA
- Average snowfall in December: 3.23"
The month with the highest snowfall is January (4.96").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Traer, IA
- Average snowfall days in December: 10 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Traer, 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: 3h and 54min).
Average sunshine days in December
Traer, IA
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (7.9 days).
Average UV index in December
Traer, IA
- Average UV index in December: 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 December
Traer, IA
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in December
Traer, IA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
