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
A notable decrease in the average high-temperature is observed during December, falling from a frosty 47.1°F (8.4°C) in November to a wintry 32.7°F (0.4°C). Dunlap reports an average nighttime low-temperature of 20.8°F (-6.2°C) in December.Humidity
The average relative humidity in December is 79%.Rainfall
In December, the rain falls for 4.5 days. Throughout December, 1.06" (27mm) of precipitation is accumulated. In Dunlap, during the entire year, the rain falls for 120.4 days and collects up to 19.88" (505mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Dunlap, in December, snow falls for 7 days, with typically accumulated 1.93" (49mm) of snow. Throughout the year, there are 32.1 snowfall days, and 10.59" (269mm) of snow is accumulated.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 7:31 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 5:01 pm CST.
Sunshine
The average sunshine in December is 4.9h.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 of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, an average UV index of 2 transforms into the following instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December in Dunlap?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Dunlap have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Dunlap, IA
- Average high temperature in December: 32.7°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in December: 20.8°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in December
Dunlap, IA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Dunlap, IA
- Average wind speed in December: 10mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in December
Dunlap, IA
- Average humidity in December: 79%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are April and October (67%).
Average rainfall in December
Dunlap, IA
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in December
Dunlap, IA
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in December
Dunlap, IA
- Average snowfall in December: 1.93"
The month with the highest snowfall is February (2.56").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Dunlap, IA
- Average snowfall days in December: 7 days
The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Dunlap, 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 5min
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 36min).
Average sunshine days in December
Dunlap, IA
- Average sunshine days in December: 21.7 days
The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in December
Dunlap, 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
Dunlap, IA
- Average cloud cover in December: 47
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in December
Dunlap, 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).
Dunlap, Iowa, USA
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