December weather forecast
Isanti, MN

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Weather in December

The first month of the winter, December, is still a freezing cold month in Isanti, Minnesota, with an average temperature fluctuating between 23.9°F (-4.5°C) and 14.4°F (-9.8°C).

Temperature

Witnessing a clear drop in December, the average high-temperature declines from November's icy 38.7°F (3.7°C) to a freezing cold 23.9°F (-4.5°C). Throughout the month of December, Isanti sees a steady low-temperature average of 14.4°F (-9.8°C).

Humidity

In December, the average relative humidity is 87%.

Rainfall

In Isanti, in December, during 3.6 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, there are 116.6 rainfall days, and 20.67" (525mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 13 days and accumulates 5.04" (128mm) of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 48min of daylight.
On the first day of December, sunrise is at 7:33 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 4:39 pm CST.

Sunshine

In December, the average sunshine is 3.3h.

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 reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 1 during December, leads to the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

In December, the average high-temperature and low-temperature are 23.9°F (-4.5°C) and 14.4°F (-9.8°C) respectively.

What is the average humidity in December?

In Isanti, the average relative humidity in December is 87%.

How many days does it rain in December?

In Isanti, in December, it is raining for 3.6 days, with typically 1.02" (26mm) of accumulated precipitation.

What is the snowiest month?

December is the month with the most snowfall. Snow falls for 13 days and accumulates 5.04" (128mm) of snow.

How much does it snow in December?

In Isanti, during December, snow falls for 13 days and regularly aggregates up to 5.04" (128mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year in Isanti, with an average of 8h and 48min of daylight.

How many hours of daylight does Isanti have in December?

The average day length in December is 8h and 47min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:33 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 4:39 pm CST.

How many hours of sunshine does Isanti have in December?

In December, the average sunshine duration is 3.3h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Isanti, MN

Average temperature in December - Isanti, MN
  • Average high temperature in December: 23.9°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (18.9°F).

  • Average low temperature in December: 14.4°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).

Average pressure in December
Isanti, MN

Average pressure in December - Isanti, MN
  • Average pressure in December: 30.1"Hg

The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in December
Isanti, MN

Average wind speed in December - Isanti, MN
  • Average wind speed in December: 8.3mph

The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).

Average humidity in December
Isanti, MN

Average humidity in December - Isanti, MN
  • Average humidity in December: 87%

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

Average rainfall in December
Isanti, MN

Average rainfall in December - Isanti, MN
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in December
Isanti, MN

Average rainfall days in December - Isanti, MN
  • Average rainfall days in December: 3.6 days

The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is February (1.9 days).

Average snowfall in December
Isanti, MN

Average snowfall in December - Isanti, MN
  • Average snowfall in December: 5.04"

The month with the highest snowfall is December (5.04").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Isanti, MN

Average snowfall days in December - Isanti, MN
  • Average snowfall days in December: 13 days

The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Isanti, MN

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

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • 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 0min).

Average sunshine days in December
Isanti, MN

Average sunshine days in December - Isanti, MN
  • Average sunshine days in December: 17 days

The month with the most sunshine days is January (18.2 days).
The month with the least sunshine days is June (11.8 days).

Average UV index in December
Isanti, MN

Average UV index in December - Isanti, 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
Isanti, MN

Average cloud cover in December - Isanti, MN
  • Average cloud cover in December: 66

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in December
Isanti, MN

Average visibility in December - Isanti, 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).

Isanti, Minnesota, USA

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