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
As December arrives, Whitten's weather displays a decrease in high-temperatures, transitioning from November's frosty 44.4°F (6.9°C) to a subzero cold 30.9°F (-0.6°C). December witnesses an average low-temperature hovering around a still freezing cold 20.1°F (-6.6°C).Humidity
In December, the average relative humidity in Whitten is 82%.Rainfall
In December, the rain falls for 3 days. Throughout December, 0.28" (7mm) of precipitation is accumulated. In Whitten, during the entire year, the rain falls for 83.5 days and collects up to 6.5" (165mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Whitten, in December, during 4.9 snowfall days, 0.43" (11mm) of snow is typically accumulated. Throughout the year, there are 26.6 snowfall days, and 3.03" (77mm) of snow is accumulated.Daylight
The month with the shortest days in Whitten is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:21 am and sunset at 4:40 pm. On the last day of December, in Whitten, sunrise is at 7:40 am and sunset at 4:49 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 value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is it in Whitten in December?
What is the average humidity in December in Whitten?
How much does it rain in Whitten in December?
How much does it snow in Whitten in December?
What is the month with the shortest days in Whitten?
What is the average length of the day in December in Whitten?
When are sunrise and sunset in December in Whitten?
How long on average sun shines in December in Whitten?
When is the lowest UV index in Whitten?
How high is the UV index in December in Whitten?
Average temperature in December
Whitten, IA
- Average high temperature in December: 30.9°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (24.4°F).
- Average low temperature in December: 20.1°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in December
Whitten, IA
- Average pressure in December: 30.11"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
Whitten, IA
- Average wind speed in December: 10.3mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in December
Whitten, IA
- Average humidity in December: 82%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Whitten, IA
- Average rainfall in December: 0.28"
The wettest month (with the highest rainfall) is May (1.06").
The driest months (with the least rainfall) are January and February (0.24").
Average rainfall days in December
Whitten, IA
- Average rainfall days in December: 3 days
The month with the highest number of rainy days is May (11.6 days).
The months with the least rainy days are January and February (2 days).
Average snowfall in December
Whitten, IA
- Average snowfall in December: 0.43"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Whitten, IA
- Average snowfall days in December: 4.9 days
The month with the highest number of snowfall days is January (7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Whitten, 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
Whitten, IA
- Average sunshine days in December: 24.6 days
The month with the most sunshine days is January (25.2 days).
The month with the least sunshine days is June (15.8 days).
Average UV index in December
Whitten, 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
Whitten, 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 31).
Average visibility in December
Whitten, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Whitten, Iowa, USA
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