December weather forecastBlakesburg, IA
December
Weather in December
The first month of the winter, December, is also an icy month in Blakesburg, Iowa, with an average temperature ranging between min 23.7°F (-4.6°C) and max 35.1°F (1.7°C).Temperature
Blakesburg in December undergoes a mild reduction in the average high-temperature, shifting from November's chilly 48.2°F (9°C) to an icy 35.1°F (1.7°C). An average nighttime temperature of 23.7°F (-4.6°C) is noted during the month of December.Humidity
The average relative humidity in December in Blakesburg is 79%.Rainfall
The month with the least rainfall in Blakesburg is December, when the rain falls for 5.3 days and typically collects 0.63" (16mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 5.6 days. Throughout December, 0.83" (21mm) of snow is accumulated. Throughout the year, there are 28.3 snowfall days, and 10.28" (261mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December in Blakesburg, sunrise is at 7:16 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:52 pm CST.
Sunshine
In Blakesburg, the average sunshine in December is 4.7h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Blakesburg. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Blakesburg, IA
- Average high temperature in December: 35.1°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in December: 23.7°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in December
Blakesburg, IA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Blakesburg, IA
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Blakesburg, IA
- Average humidity in December: 79%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Blakesburg, IA
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is June (2.99").
The driest month (with the least rainfall) is December (0.63").
Average rainfall days in December
Blakesburg, IA
- Average rainfall days in December: 5.3 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (4 days).
Average snowfall in December
Blakesburg, IA
- Average snowfall in December: 0.83"
The month with the highest snowfall is January (2.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Blakesburg, IA
- Average snowfall days in December: 5.6 days
The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Blakesburg, IA
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 42min
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 December
Blakesburg, IA
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in December
Blakesburg, IA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (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
Blakesburg, IA
- Average cloud cover in December: 50
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in December
Blakesburg, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





