Moose
Wyoming, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Moose, WY

December, the first month of the winter, in Moose, is still a freezing cold month, with average temperature varying between 4.1°F (-15.5°C) and 21°F (-6.1°C).

Temperature

December is the coldest month, with an average high-temperature of 21°F (-6.1°C) and an average low-temperature of 4.1°F (-15.5°C).

Humidity

The average relative humidity is 92%.

Rainfall

In Moose, it is raining for 5.5 days, with typically 2.68" (68mm) of accumulated precipitation. In Moose, Wyoming, during the entire year, the rain falls for 116.8 days and collects up to 27.95" (710mm) of precipitation.

Snowfall

Months with snowfall in Moose are January through June, September through December. In December, in Moose, it is snowing for 21.7 days. Throughout December, 22.44" (570mm) of snow is accumulated. Throughout the year, there are 130.7 snowfall days, and 137.48" (3492mm) of snow is accumulated.

Daylight

The month with the shortest days in Moose is December, with an average of 9h of daylight.

Sunshine

The average sunshine in Moose is 3.8h.

UV index

January through March, October through 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 low health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 1 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the coldest month in Moose?

The coldest month in Moose is December, with an average high-temperature of 21°F (-6.1°C) and an average low-temperature of 4.1°F (-15.5°C).

What is the temperature in December in Moose?

The average high-temperature, in December, in Moose, is 21°F (-6.1°C), while the average low-temperature is 4.1°F (-15.5°C).

What is the average humidity in December in Moose?

In December, the average relative humidity is 92%.

How much does it rain in Moose in December?

In Moose, Wyoming, during December, the rain falls for 5.5 days and regularly aggregates up to 2.68" (68mm) of precipitation.

How many days does it snow in December in Moose?

In Moose, in December, snow falls for 21.7 days, with typically accumulated 22.44" (570mm) of snow.

What is the month with the shortest days in Moose?

December has the shortest days of the year in Moose, with an average of 9h of daylight.

How many hours of daylight does Moose have in December?

In December, the average length of the day in Moose is 9h.

How long on average sun shines in December in Moose?

The average sunshine in December in Moose is 3.8h.

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

January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Moose.

What is the UV index reading in December in Moose?

In Moose, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to the UV radiation.
Average temperature in December - Moose, WY
  • Average high temperature in December: 21°F

The warmest month (with the highest average high temperature) is July (72°F).
The month with the lowest average high temperature is December (21°F).

  • Average low temperature in December: 4.1°F

The month with the highest average low temperature is July (43.9°F).
The coldest month (with the lowest average low temperature) is December (4.1°F).

Average humidity in December - Moose, WY
  • Average humidity in December: 92%

The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (50%).

Average rainfall in December - Moose, WY
  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is February (3.23").
The driest month (with the least rainfall) is August (1.42").

Average rainfall days in December - Moose, WY
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is May (16.2 days).
Months with the least rainy days are January and February (3.9 days).

Average snowfall in December - Moose, WY
  • Average snowfall in December: 22.44"

The month with the highest snowfall is February (25.94").
Months with the least snowfall are July and August (0").

Average snowfall days in December - Moose, WY
  • Average snowfall days in December: 21.7 days

The month with the highest number of snowfall days is December (21.7 days).
The month with the least snowfall days is July (0 days).

Average daylight in December / Average sunshine in December - Moose, WY
  • Average daylight in December: 9h

The month with the longest days is June (Average daylight: 15.4h).
The month with the shortest days is December (Average daylight: 9h).

  • Average sunshine in December: 3.8h

The month with the most sunshine is July (Average sunshine: 11.7h).
The month with the least sunshine is February (Average sunshine: 3.6h).

Average UV index in December - Moose, WY
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 5).
Months with the lowest UV index are January, February, March, October, November and December (UV index 1).