December weather forecast
Lancaster, MN

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Weather in December

The first month of the winter, December, is still a freezing cold month in Lancaster, Minnesota, with an average temperature varying between 16.7°F (-8.5°C) and 6.4°F (-14.2°C).

Temperature

With the onset of December, Lancaster's weather experiences a distinct temperature drop, moving from an icy 33.6°F (0.9°C) in November to a freezing cold 16.7°F (-8.5°C). In December, Lancaster records an average nighttime temperature of 6.4°F (-14.2°C).

Humidity

The average relative humidity in December is 91%.

Rainfall

In December, the rain falls for 1.9 days. Throughout December, 0.79" (20mm) of precipitation is accumulated. In Lancaster, during the entire year, the rain falls for 100.4 days and collects up to 15.91" (404mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 14.3 days and typically aggregates up to 4.25" (108mm) of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 18min of daylight.
On the first day of the month, sunrise is at 8:00 am and sunset at 4:32 pm. On the last day of December, sunrise is at 8:20 am and sunset at 4:40 pm CST.

Sunshine

In December, the average sunshine is 3.1h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 1 in December translates into this advice:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.

Frequently asked questions

How cold is December?

The high-temperature, in December, in Lancaster, records 16.7°F (-8.5°C), while the low-temperature is 6.4°F (-14.2°C).

What is the average humidity in December?

In December, the average relative humidity in Lancaster is 91%.

How much does it rain in December?

In December, in Lancaster, the rain falls for 1.9 days. Throughout December, 0.79" (20mm) of precipitation is accumulated.

When does it snow the most?

December is the month with the most snowfall in Lancaster. Snow falls for 14.3 days and accumulates 4.25" (108mm) of snow.

How much does it snow in December?

In December, it is snowing for 14.3 days. Throughout December, 4.25" (108mm) of snow is accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 8h and 18min of daylight.

How many hours of daylight does Lancaster have in December?

In December, the average day length is 8h and 20min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 8:00 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 8:20 am and sunset at 4:40 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration is 3.1h.

What is the month with the lowest UV index in Lancaster?

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 estimate of 2, and below, represents a low health threat from unsafe 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
Lancaster, MN

Average temperature in December - Lancaster, MN
  • Average high temperature in December: 16.7°F

The warmest month (with the highest average high temperature) is August (79.3°F).
The month with the lowest average high temperature is January (13.6°F).

  • Average low temperature in December: 6.4°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (-0.8°F).

Average pressure in December
Lancaster, MN

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

The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in December
Lancaster, MN

Average wind speed in December - Lancaster, MN
  • Average wind speed in December: 9.3mph

The windiest month (with the highest average wind speed) is October (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).

Average humidity in December
Lancaster, MN

Average humidity in December - Lancaster, MN
  • Average humidity in December: 91%

The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is August (61%).

Average rainfall in December
Lancaster, MN

Average rainfall in December - Lancaster, MN
  • Average rainfall in December: 0.79"

The wettest month (with the highest rainfall) is June (2.72").
The driest month (with the least rainfall) is February (0.47").

Average rainfall days in December
Lancaster, MN

Average rainfall days in December - Lancaster, MN
  • Average rainfall days in December: 1.9 days

The month with the highest number of rainy days is June (16.2 days).
The months with the least rainy days are February and December (1.9 days).

Average snowfall in December
Lancaster, MN

Average snowfall in December - Lancaster, MN
  • Average snowfall in December: 4.25"

The month with the highest snowfall is December (4.25").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Lancaster, MN

Average snowfall days in December - Lancaster, MN
  • Average snowfall days in December: 14.3 days

The month with the highest number of snowfall days is December (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Lancaster, MN
  • Average daylight in December: 8h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in December: 3h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).

Average sunshine days in December
Lancaster, MN

Average sunshine days in December - Lancaster, MN
  • Average sunshine days in December: 17.1 days

The month with the most sunshine days is August (19.1 days).
The month with the least sunshine days is June (10.2 days).

Average UV index in December
Lancaster, MN

Average UV index in December - Lancaster, 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
Lancaster, MN

Average cloud cover in December - Lancaster, MN
  • Average cloud cover in December: 68

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in December
Lancaster, MN

Average visibility in December - Lancaster, 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).

Lancaster, Minnesota, USA

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