December weather forecast
Mendota Heights, MN

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Weather in December

December, the first month of the winter in Mendota Heights, is still a freezing cold month, with temperature in the range of an average high of 25.3°F (-3.7°C) and an average low of 15.4°F (-9.2°C).

Temperature

In Mendota Heights, stepping into December signifies a significant temperature decrement, moving down from November's icy 40.1°F (4.5°C) to a freezing cold 25.3°F (-3.7°C). An average minimum temperature of 15.4°F (-9.2°C) is recorded during the month of December.

Humidity

In Mendota Heights, the average relative humidity in December is 88%.

Rainfall

In Mendota Heights, during December, the rain falls for 4 days and regularly aggregates up to 1.22" (31mm) of precipitation. In Mendota Heights, during the entire year, the rain falls for 119.7 days and collects up to 21.77" (553mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 12.5 days. Throughout December, 5" (127mm) of snow is accumulated. Throughout the year, there are 57.2 snowfall days, and 24.21" (615mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 8h and 54min of daylight.
On the first day of December, sunrise is at 7:30 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 4:41 pm CST.

Sunshine

In December, the average sunshine is 3.4h.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

December temperatures vary between a high-temperature of 25.3°F (-3.7°C) and a low-temperature of 15.4°F (-9.2°C). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in July is estimated at 86°F (30°C).

What is the average humidity in December?

In December, the average relative humidity in Mendota Heights is 88%.

How much does it rain in Mendota Heights in December?

In Mendota Heights, in December, during 4 rainfall days, 1.22" (31mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Mendota Heights, during December, snow falls for 12.5 days and regularly aggregates up to 5" (127mm) of snow.

What is the month with the shortest days?

The month with the shortest days in Mendota Heights is December, with an average of 8h and 54min of daylight.

How many hours of daylight does Mendota Heights have in December?

In Mendota Heights, the average day length in December is 8h and 51min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:30 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 4:41 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration in Mendota Heights is 3.4h.

What is the month with the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1.

What is the UV index intensity in December?

The average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes 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
Mendota Heights, MN

Average temperature in December - Mendota Heights, MN
  • Average high temperature in December: 25.3°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (20.5°F).

  • Average low temperature in December: 15.4°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).

Average pressure in December
Mendota Heights, MN

Average pressure in December - Mendota Heights, MN
  • Average pressure in December: 30.11"Hg

The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in December
Mendota Heights, MN

Average wind speed in December - Mendota Heights, MN
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

Average humidity in December
Mendota Heights, MN

Average humidity in December - Mendota Heights, MN
  • Average humidity in December: 88%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and May (71%).

Average rainfall in December
Mendota Heights, MN

Average rainfall in December - Mendota Heights, MN
  • Average rainfall in December: 1.22"

The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.63").

Average rainfall days in December
Mendota Heights, MN

Average rainfall days in December - Mendota Heights, MN
  • Average rainfall days in December: 4 days

The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (1.8 days).

Average snowfall in December
Mendota Heights, MN

Average snowfall in December - Mendota Heights, MN
  • Average snowfall in December: 5"

The month with the highest snowfall is February (5.63").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Mendota Heights, MN

Average snowfall days in December - Mendota Heights, MN
  • Average snowfall days in December: 12.5 days

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Mendota Heights, MN

Average daylight in December / Average sunshine in December - Mendota Heights, MN
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 3h 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 6min).

Average sunshine days in December
Mendota Heights, MN

Average sunshine days in December - Mendota Heights, MN
  • Average sunshine days in December: 18.1 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (10.8 days).

Average UV index in December
Mendota Heights, MN

Average UV index in December - Mendota Heights, MN
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in December
Mendota Heights, MN

Average cloud cover in December - Mendota Heights, MN
  • Average cloud cover in December: 64

The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 31).

Average visibility in December
Mendota Heights, MN

Average visibility in December - Mendota Heights, MN
  • Average visibility in December: 5mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

Mendota Heights, Minnesota, USA

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