December weather forecastCedar Rapids, NE
December
Weather in December
December, the first month of the winter in Cedar Rapids, is still a cold month, with an average temperature fluctuating between 20.8°F (-6.2°C) and 33.4°F (0.8°C).Temperature
December's arrival signals a distinct temperature shift, dropping from a chilly 48°F (8.9°C) in November to an icy 33.4°F (0.8°C). During December nights, Cedar Rapids witnesses a consistent average temperature of 20.8°F (-6.2°C).Humidity
In December, the average relative humidity is 77%.Rainfall
In Cedar Rapids, during December, the rain falls for 3.2 days and regularly aggregates up to 1.22" (31mm) of precipitation. In Cedar Rapids, during the entire year, the rain falls for 108.8 days and collects up to 18.98" (482mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. December is the month with the most snowfall. Snow falls for 6.5 days and accumulates 3.9" (99mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:40 am and sunset at 5:03 pm. On the last day of December, sunrise is at 7:59 am and sunset at 5:12 pm CST.
Sunshine
In Cedar Rapids, the average sunshine in December is 5.3h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cedar Rapids, NE
- Average high temperature in December: 33.4°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 20.8°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Cedar Rapids, NE
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Cedar Rapids, NE
- Average wind speed in December: 10.7mph
The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in December
Cedar Rapids, NE
- Average humidity in December: 77%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is October (63%).
Average rainfall in December
Cedar Rapids, NE
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are January and February (0.55").
Average rainfall days in December
Cedar Rapids, NE
- Average rainfall days in December: 3.2 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in December
Cedar Rapids, NE
- Average snowfall in December: 3.9"
The month with the highest snowfall is December (3.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Cedar Rapids, NE
- Average snowfall days in December: 6.5 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Cedar Rapids, NE
- Average daylight in December: 9h and 12min
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 12min).
- Average sunshine in December: 5h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in December
Cedar Rapids, NE
- Average sunshine days in December: 22.2 days
The month with the most sunshine days is November (23.2 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in December
Cedar Rapids, NE
- 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, November and December (UV index 2).
Average cloud cover in December
Cedar Rapids, NE
- Average cloud cover in December: 42
The month with the most cloud cover is January (Cloud cover 47).
The months with the least cloud cover are July and September (Cloud cover 27).
Average visibility in December
Cedar Rapids, NE
- 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).
