December weather forecast
Wallingford, IA

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Weather in December

December, the first month of the winter in Wallingford, is also a subzero cold month, with temperature in the range of an average low of 16.5°F (-8.6°C) and an average high of 27.3°F (-2.6°C).

Temperature

December's arrival signals a distinct temperature shift, dropping from a wintry 42.4°F (5.8°C) in November to a subzero cold 27.3°F (-2.6°C). Wallingford observes an average nighttime low-temperature of 16.5°F (-8.6°C) during the month of December.

Humidity

The average relative humidity in December is 85%.

Rainfall

In Wallingford, Iowa, in December, during 4.4 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Throughout the year, there are 123.7 rainfall days, and 23.66" (601mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Wallingford are January through May, October through December. In Wallingford, Iowa, during December, snow falls for 11.1 days and regularly aggregates up to 3.66" (93mm) of snow. In Wallingford, Iowa, during the entire year, snow falls for 48.8 days and aggregates up to 19.76" (502mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 0min of daylight.
On the first day of the month, sunrise is at 7:32 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:51 am and sunset at 4:53 pm CST.

Sunshine

The average sunshine in December is 4.3h.

UV index

In Wallingford, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: An average maximum UV index of 2 in December leads to these recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Wallingford?

The average high-temperature and low-temperature during December are 27.3°F (-2.6°C) and 16.5°F (-8.6°C) respectively.

What is the average humidity in December in Wallingford?

In Wallingford, the average relative humidity in December is 85%.

How much does it rain in Wallingford in December?

In Wallingford, Iowa, in December, it is raining for 4.4 days, with typically 1.3" (33mm) of accumulated precipitation.

How many days does it snow in December in Wallingford?

In Wallingford, during December, snow falls for 11.1 days and regularly aggregates up to 3.66" (93mm) of snow.

What is the month with the shortest days in Wallingford?

With an average of 9h and 0min of daylight, December has the shortest days of the year in Wallingford.

How many hours of daylight does Wallingford have in December?

In Wallingford, Iowa, the average day length in December is 9h and 2min.

When is the sunrise / sunset in December in Wallingford?

On the first day of December in Wallingford, Iowa, sunrise is at 7:32 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 4:53 pm CST.

How long on average sun shines in December in Wallingford?

In Wallingford, the average sunshine duration in December is 4.3h.

What is the UV index reading in December in Wallingford?

The average daily maximum UV index in December in Wallingford, Iowa, is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to the Sun's UV radiation.
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
Wallingford, IA

Average temperature in December - Wallingford, IA
  • Average high temperature in December: 27.3°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in December: 16.5°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

Average pressure in December
Wallingford, IA

Average pressure in December - Wallingford, IA
  • Average pressure in December: 30.12"Hg

The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in December
Wallingford, IA

Average wind speed in December - Wallingford, IA
  • Average wind speed in December: 10.7mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).

Average humidity in December
Wallingford, IA

Average humidity in December - Wallingford, IA
  • Average humidity in December: 85%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).

Average rainfall in December
Wallingford, IA

Average rainfall in December - Wallingford, IA
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.87").

Average rainfall days in December
Wallingford, IA

Average rainfall days in December - Wallingford, IA
  • Average rainfall days in December: 4.4 days

The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (2.3 days).

Average snowfall in December
Wallingford, IA

Average snowfall in December - Wallingford, IA
  • Average snowfall in December: 3.66"

The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Wallingford, IA

Average snowfall days in December - Wallingford, IA
  • Average snowfall days in December: 11.1 days

The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Wallingford, IA
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 4h and 2min

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
Wallingford, IA

Average sunshine days in December - Wallingford, IA
  • Average sunshine days in December: 17.1 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (10.1 days).

Average UV index in December
Wallingford, IA

Average UV index in December - Wallingford, 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 and February (UV index 1).

Average cloud cover in December
Wallingford, IA

Average cloud cover in December - Wallingford, IA
  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and September (Cloud cover 31).

Average visibility in December
Wallingford, IA

Average visibility in December - Wallingford, IA
  • Average visibility in December: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Wallingford, Iowa, USA

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