December weather forecast
McCausland, IA

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Weather in December

The first month of the winter, December, is also a wintry month in McCausland, Iowa, with an average temperature ranging between min 22.6°F (-5.2°C) and max 33.4°F (0.8°C).

Temperature

McCausland's December weather features a mild decline in high-temperatures, reducing from a frosty 45.7°F (7.6°C) in November to an icy 33.4°F (0.8°C). An average low-temperature of 22.6°F (-5.2°C) is observed during the December nights.

Humidity

The average relative humidity in December is 82%.

Rainfall

In McCausland, during December, the rain falls for 7.3 days and regularly aggregates up to 1.38" (35mm) of precipitation. Throughout the year, in McCausland, there are 142.1 rainfall days, and 28.35" (720mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In McCausland, in December, snow falls for 8.5 days, with typically accumulated 2.28" (58mm) of snow. In McCausland, during the entire year, snow falls for 39.7 days and aggregates up to 15.67" (398mm) of snow.

Daylight

December has the shortest days of the year in McCausland, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 7:10 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:41 pm CST.

Sunshine

The average sunshine in December is 4.3h.

UV index

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum UV index of 2 in December translates into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

December temperatures vary between a high-temperature of 33.4°F (0.8°C) and a low-temperature of 22.6°F (-5.2°C).

What is the average humidity in December in McCausland?

In McCausland, the average relative humidity in December is 82%.

How much does it rain in December?

In McCausland, in December, during 7.3 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

How many days does it snow in December?

In McCausland, during December, snow falls for 8.5 days and regularly aggregates up to 2.28" (58mm) of snow.

What is the month with the shortest days?

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

What is the average length of the day in December?

In December, the average day length is 9h and 13min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:10 am and sunset at 4:32 pm. On the last day of the month, in McCausland, sunrise is at 7:28 am and sunset at 4:41 pm CST.

How many hours of sunshine does McCausland have in December?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to 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
McCausland, IA

Average temperature in December - McCausland, IA
  • Average high temperature in December: 33.4°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (26.6°F).

  • Average low temperature in December: 22.6°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

Average pressure in December
McCausland, IA

Average pressure in December - McCausland, IA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in December
McCausland, IA

Average wind speed in December - McCausland, IA
  • Average wind speed in December: 9.8mph

The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in December
McCausland, IA

Average humidity in December - McCausland, IA
  • Average humidity in December: 82%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
McCausland, IA

Average rainfall in December - McCausland, IA
  • Average rainfall in December: 1.38"

The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is February (1.26").

Average rainfall days in December
McCausland, IA

Average rainfall days in December - McCausland, IA
  • Average rainfall days in December: 7.3 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in December
McCausland, IA

Average snowfall in December - McCausland, IA
  • Average snowfall in December: 2.28"

The month with the highest snowfall is January (5.2").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
McCausland, IA

Average snowfall days in December - McCausland, IA
  • Average snowfall days in December: 8.5 days

The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - McCausland, 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
McCausland, IA

Average sunshine days in December - McCausland, IA
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in December
McCausland, IA

Average UV index in December - McCausland, IA
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in December
McCausland, IA

Average cloud cover in December - McCausland, 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 August (Cloud cover 30).

Average visibility in December
McCausland, IA

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

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

McCausland, Iowa, USA

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