December weather forecastRadcliffe, IA
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Radcliffe, Iowa, with an average temperature varying between 31.5°F (-0.3°C) and 20.5°F (-6.4°C).Temperature
Radcliffe's weather in December involves a decrease in the average high-temperature, moving down from November's chilly 45°F (7.2°C) to a subzero cold 31.5°F (-0.3°C). Radcliffe experiences a mean low-temperature of 20.5°F (-6.4°C) during December.Humidity
In Radcliffe, the average relative humidity in December is 81%.Rainfall
In Radcliffe, in December, it is raining for 5.6 days, with typically 1.46" (37mm) of accumulated precipitation. In Radcliffe, Iowa, during the entire year, the rain falls for 143.3 days and collects up to 29.25" (743mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Radcliffe, in December, snow falls for 10.5 days, with typically accumulated 3.27" (83mm) of snow. In Radcliffe, during the entire year, snow falls for 45.8 days and aggregates up to 16.85" (428mm) 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 the month, sunrise is at 7:23 am and sunset at 4:42 pm. On the last day of December, sunrise is at 7:42 am and sunset at 4:51 pm CST.
Sunshine
In December, the average sunshine is 4.5h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Always opt for UVA and UVB-resistant sunglasses on radiant days. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Radcliffe, IA
- Average high temperature in December: 31.5°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in December: 20.5°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 (12.9°F).
Average pressure in December
Radcliffe, IA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Radcliffe, IA
- Average wind speed in December: 10.2mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in December
Radcliffe, 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 (70%).
Average rainfall in December
Radcliffe, IA
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in December
Radcliffe, IA
- Average rainfall days in December: 5.6 days
The months with the highest number of rainy days are May and June (19.2 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in December
Radcliffe, IA
- Average snowfall in December: 3.27"
The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Radcliffe, IA
- Average snowfall days in December: 10.5 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Radcliffe, 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 30min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Radcliffe, 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 (8.5 days).
Average UV index in December
Radcliffe, 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
Radcliffe, IA
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in December
Radcliffe, 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).
