December weather forecast
Kemmerer, WY

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Weather in December

Concluding the year, December welcomes the stark winter season in Kemmerer, with average temperatures dropping further from those in November. The volume of snowfall dramatically increases to an impressive 4.84" (123mm) over 13.5 days, marking the upcoming winter month of January. An average of 9.2 hours of daylight illuminates Kemmerer, the shortest span in the year. With a relatively constant wind speed from November, the winter chill becomes more pronounced. Overall, the weather in December envelopes Kemmerer in a classic winter wonderland setting, perfect for holiday celebrations.

Temperature

December proves to be the coldest month in Kemmerer, recording an average maximum temperature of 25.7°F (-3.5°C) and a minimum temperature of 10°F (-12.2°C).

Humidity

The average relative humidity in December is 85%.

Rainfall

In December, the rain falls for 6.4 days. Throughout December, 0.83" (21mm) of precipitation is accumulated. In Kemmerer, during the entire year, the rain falls for 96.8 days and collects up to 11.46" (291mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. In Kemmerer, in December, snow falls for 13.5 days, with typically accumulated 4.84" (123mm) of snow. Throughout the year, in Kemmerer, there are 88.9 snowfall days, and 38.86" (987mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year in Kemmerer.
On the first day of the month, sunrise is at 7:30 am and sunset at 4:52 pm. On the last day of December, sunrise is at 7:49 am and sunset at 5:01 pm MST.

Sunshine

In December, the average sunshine is 5.9h.

UV index

The months with the lowest UV index in Kemmerer are January through April, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 2 in December transforms into this advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

What month is the coldest in Kemmerer?

With average high temperatures of 25.7°F (-3.5°C) and lows of 10°F (-12.2°C), December is the coldest month in Kemmerer, Wyoming.

How cold is it in Kemmerer in December?

The high-temperature, in December, in Kemmerer, records 25.7°F (-3.5°C), while the low-temperature is 10°F (-12.2°C).

What is the average humidity in December in Kemmerer?

In Kemmerer, Wyoming, the average relative humidity in December is 85%.

How many days does it rain in December in Kemmerer?

In December, in Kemmerer, Wyoming, the rain falls for 6.4 days. Throughout December, 0.83" (21mm) of precipitation is accumulated.

How much does it snow in Kemmerer in December?

In Kemmerer, in December, snow falls for 13.5 days, with typically accumulated 4.84" (123mm) of snow.

What is the month with the shortest days in Kemmerer?

With an average of 9h and 12min of daylight, December has the shortest days of the year in Kemmerer, Wyoming.

What is the average length of the day in December in Kemmerer?

The average day length in December is 9h and 12min.

What time are sunrise and sunset in December in Kemmerer?

On the first day of December in Kemmerer, Wyoming, sunrise is at 7:30 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 5:01 pm MST.

How many hours of sunshine does Kemmerer have in December?

The average sunshine duration in December in Kemmerer, Wyoming, is 5.9h.

What are the months with the lowest UV index in Kemmerer?

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Kemmerer.

What is the UV index reading in December in Kemmerer?

In Kemmerer, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Kemmerer, WY

Average temperature in December - Kemmerer, WY
  • Average high temperature in December: 25.7°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (25.7°F).

  • Average low temperature in December: 10°F

The month with the highest average low temperature is July (55°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

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Average pressure in December
Kemmerer, WY

Average pressure in December - Kemmerer, WY
  • Average pressure in December: 30.24"Hg

The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in December
Kemmerer, WY

Average wind speed in December - Kemmerer, WY
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).

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Average humidity in December
Kemmerer, WY

Average humidity in December - Kemmerer, WY
  • Average humidity in December: 85%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is August (35%).

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Average rainfall in December
Kemmerer, WY

Average rainfall in December - Kemmerer, WY
  • Average rainfall in December: 0.83"

The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is August (0.59").

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Average rainfall days in December
Kemmerer, WY

Average rainfall days in December - Kemmerer, WY
  • Average rainfall days in December: 6.4 days

The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is February (5 days).

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Average snowfall in December
Kemmerer, WY

Average snowfall in December - Kemmerer, WY
  • Average snowfall in December: 4.84"

The month with the highest snowfall is March (6.81").
The months with the least snowfall are July and August (0").

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Average snowfall days in December
Kemmerer, WY

Average snowfall days in December - Kemmerer, WY
  • Average snowfall days in December: 13.5 days

The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in December /
Average sunshine in December
Kemmerer, WY

Average daylight in December / Average sunshine in December - Kemmerer, WY
  • 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: 5h and 5min

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).

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Average sunshine days in December
Kemmerer, WY

Average sunshine days in December - Kemmerer, WY
  • Average sunshine days in December: 15.8 days

The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is April (9.7 days).

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Average UV index in December
Kemmerer, WY

Average UV index in December - Kemmerer, WY
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

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Average cloud cover in December
Kemmerer, WY

Average cloud cover in December - Kemmerer, WY
  • Average cloud cover in December: 43

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 12).

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Average visibility in December
Kemmerer, WY

Average visibility in December - Kemmerer, WY
  • Average visibility in December: 5mi

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

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Kemmerer, Wyoming, USA

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