Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December involves a decrease in temperature, down from a frosty 45.7°F (7.6°C) in November to an icy 32.4°F (0.2°C). December witnesses an average nighttime temperature of 21.2°F (-6°C).Humidity
The average relative humidity in December is 81%.Rainfall
In December, the rain falls for 5.5 days. Throughout December, 1.18" (30mm) of precipitation is accumulated. In Robison-Whitaker Acres, during the entire year, the rain falls for 128.1 days and collects up to 26.61" (676mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Robison-Whitaker Acres, Iowa, in December, snow falls for 8.5 days, with typically accumulated 2.01" (51mm) of snow. In Robison-Whitaker Acres, during the entire year, snow falls for 38.3 days and aggregates up to 14.13" (359mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:22 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 4:52 pm CST.
Sunshine
In December, the average sunshine is 4.4h.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 reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December in Robison-Whitaker Acres?
How many days does it rain in December?
How much does it snow in Robison-Whitaker Acres in December?
What is the month with the shortest days?
How many hours of daylight does Robison-Whitaker Acres have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Robison-Whitaker Acres have in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Robison-Whitaker Acres, IA
- Average high temperature in December: 32.4°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 (26.2°F).
- Average low temperature in December: 21.2°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in December
Robison-Whitaker Acres, 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 (29.89"Hg).
Average wind speed in December
Robison-Whitaker Acres, IA
- Average wind speed in December: 10.1mph
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
Robison-Whitaker Acres, 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
Robison-Whitaker Acres, IA
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in December
Robison-Whitaker Acres, IA
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in December
Robison-Whitaker Acres, IA
- Average snowfall in December: 2.01"
The month with the highest snowfall is January (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Robison-Whitaker Acres, IA
- Average snowfall days in December: 8.5 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Robison-Whitaker Acres, IA
- Average daylight in December: 9h and 1min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Robison-Whitaker Acres, IA
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in December
Robison-Whitaker Acres, 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
Robison-Whitaker Acres, IA
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in December
Robison-Whitaker Acres, 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).
Robison-Whitaker Acres, Iowa, USA
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