December weather forecast
Dunlap, IA

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Weather in December

The first month of the winter, December, is also a wintry month in Dunlap, Iowa, with an average temperature fluctuating between 20.8°F (-6.2°C) and 32.7°F (0.4°C).

Temperature

Dunlap in December sees a clear temperature decline, with average high-temperatures decreasing from a chilly 47.1°F (8.4°C) in November to a wintry 32.7°F (0.4°C). During December nights, Dunlap witnesses a consistent average temperature of 20.8°F (-6.2°C).

Humidity

In Dunlap, the average relative humidity in December is 79%.

Rainfall

In Dunlap, Iowa, in December, it is raining for 4.5 days, with typically 1.06" (27mm) of accumulated precipitation. 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, during 7 snowfall days, 1.93" (49mm) of snow is typically accumulated. In Dunlap, during the entire year, snow falls for 32.1 days and aggregates up to 10.59" (269mm) of snow.

Daylight

The month with the shortest days in Dunlap is December, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 7:31 am and sunset at 4:52 pm. On the last day of December, in Dunlap, sunrise is at 7:49 am and sunset at 5:01 pm CST.

Sunshine

The average sunshine in December in Dunlap is 4.9h.

UV index

The months with the lowest UV index in Dunlap, Iowa, are January, February, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Frequently asked questions

How cold is December in Dunlap?

The high-temperature in Dunlap, Iowa, during December is 32.7°F (0.4°C) and the low-temperature is 20.8°F (-6.2°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in December in Dunlap?

In Dunlap, Iowa, the average relative humidity in December is 79%.

How much does it rain in Dunlap in December?

In December, in Dunlap, the rain falls for 4.5 days. Throughout December, 1.06" (27mm) of precipitation is accumulated.

How much does it snow in Dunlap in December?

In Dunlap, Iowa, in December, snow falls for 7 days, with typically accumulated 1.93" (49mm) of snow.

What is the month with the shortest days in Dunlap?

With an average of 9h and 12min of daylight, December has the shortest days of the year in Dunlap.

What is the average length of the day in December in Dunlap?

The average day length in December in Dunlap is 9h and 12min.

When is the sunrise / sunset in December in Dunlap?

In December, on the first day of the month, sunrise is at 7:31 am and sunset at 4:52 pm. On the last day of the month, in Dunlap, Iowa, sunrise is at 7:49 am and sunset at 5:01 pm CST.

How many hours of sunshine does Dunlap have in December?

In December, the average sunshine duration is 4.9h.

When is the lowest UV index in Dunlap?

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in December in Dunlap?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Dunlap, IA

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).

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Average pressure in December
Dunlap, IA

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).

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Average wind speed in December
Dunlap, IA

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).

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Average humidity in December
Dunlap, IA

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%).

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Average rainfall in December
Dunlap, IA

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").

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Average rainfall days in December
Dunlap, IA

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).

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Average snowfall in December
Dunlap, IA

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").

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Average snowfall days in December
Dunlap, IA

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).

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Average daylight in December /
Average sunshine in December
Dunlap, IA

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).

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Average sunshine days in December
Dunlap, IA

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).

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Average UV index in December
Dunlap, IA

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).

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Average cloud cover in December
Dunlap, IA

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).

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Average visibility in December
Dunlap, IA

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).

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Dunlap, Iowa, USA

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