Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December, with average temperatures reaching a high of 29.3°F (-1.5°C) and a low of 16.2°F (-8.8°C), is the coldest month in Glenrock, Wyoming.Humidity
In Glenrock, the average relative humidity in December is 75%.Rainfall
In Glenrock, in December, during 4.9 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. In Glenrock, during the entire year, the rain falls for 101.1 days and collects up to 11.54" (293mm) of precipitation.Snowfall
Months with snowfall in Glenrock are January through May, September through December. In Glenrock, in December, snow falls for 11 days, with typically accumulated 4.61" (117mm) of snow. Throughout the year, there are 65.9 snowfall days, and 33.03" (839mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:15 am and sunset at 4:30 pm. On the last day of December, in Glenrock, Wyoming, sunrise is at 7:34 am and sunset at 4:39 pm MST.
Sunshine
In Glenrock, the average sunshine in December is 6.3h.UV index
The months with the lowest UV index are January, February, April, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during December leads to these instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What is the coldest month in Glenrock?
How cold is December in Glenrock?
What is the average humidity in December in Glenrock?
How much does it rain in Glenrock in December?
How much does it snow in Glenrock in December?
What is the month with the shortest days in Glenrock?
How many hours of daylight does Glenrock have in December?
What time are sunrise and sunset in December in Glenrock?
How many hours of sunshine does Glenrock have in December?
When is the lowest UV index in Glenrock?
What is the UV index reading in December in Glenrock?
Average temperature in December
Glenrock, WY
- Average high temperature in December: 29.3°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (29.3°F).
- Average low temperature in December: 16.2°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is December (16.2°F).
Average pressure in December
Glenrock, WY
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Glenrock, WY
- Average wind speed in December: 12.5mph
The windiest month (with the highest average wind speed) is January (13mph).
The calmest months (with the lowest average wind speed) are July and August (8.8mph).
Average humidity in December
Glenrock, WY
- Average humidity in December: 75%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (39%).
Average rainfall in December
Glenrock, WY
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is May (1.85").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in December
Glenrock, WY
- Average rainfall days in December: 4.9 days
The month with the highest number of rainy days is May (14.8 days).
The months with the least rainy days are January and December (4.9 days).
Average snowfall in December
Glenrock, WY
- Average snowfall in December: 4.61"
The month with the highest snowfall is November (4.84").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Glenrock, WY
- Average snowfall days in December: 11 days
The month with the highest number of snowfall days is February (11.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Glenrock, WY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 6h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).
Average sunshine days in December
Glenrock, WY
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is November (18.9 days).
The months with the least sunshine days are April and May (11.3 days).
Average UV index in December
Glenrock, WY
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, April, October, November and December (UV index 2).
Average cloud cover in December
Glenrock, WY
- Average cloud cover in December: 33
The month with the most cloud cover is February (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in December
Glenrock, WY
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Glenrock, Wyoming, USA
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