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 tends to be the coldest month, with temperatures averaging a daily high of 28.2°F (-2.1°C) and a low of 12.9°F (-10.6°C).Humidity
In December, the average relative humidity in Kirby, Wyoming, is 78%.Rainfall
In Kirby, during December, the rain falls for 4.3 days and regularly aggregates up to 0.51" (13mm) of precipitation. In Kirby, during the entire year, the rain falls for 117.2 days and collects up to 11.14" (283mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Kirby, in December, during 9.8 snowfall days, 2.83" (72mm) of snow is typically accumulated. In Kirby, during the entire year, snow falls for 51.2 days and aggregates up to 21.3" (541mm) of snow.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year in Kirby.On the first day of December in Kirby, sunrise is at 7:27 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 4:45 pm MST.
Sunshine
In Kirby, the average sunshine in December is 6.5h.UV index
The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Kirby?
How cold is December in Kirby?
What is the average humidity in December in Kirby?
How many days does it rain in December in Kirby?
How many days does it snow in December in Kirby?
What is the month with the shortest days in Kirby?
How many hours of daylight does Kirby have in December?
When is the sunrise / sunset in December in Kirby?
How long on average sun shines in December in Kirby?
What is the month with the lowest UV index in Kirby?
How high is the UV index in December in Kirby?
Average temperature in December
Kirby, WY
- Average high temperature in December: 28.2°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is December (28.2°F).
- Average low temperature in December: 12.9°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in December
Kirby, WY
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Kirby, WY
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is January (5mph).
Average humidity in December
Kirby, WY
- Average humidity in December: 78%
The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (35%).
Average rainfall in December
Kirby, WY
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in December
Kirby, WY
- Average rainfall days in December: 4.3 days
The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and December (4.3 days).
Average snowfall in December
Kirby, WY
- Average snowfall in December: 2.83"
The month with the highest snowfall is February (4.57").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Kirby, WY
- Average snowfall days in December: 9.8 days
The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Kirby, WY
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 6h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days in December
Kirby, WY
- Average sunshine days in December: 20.1 days
The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in December
Kirby, 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, November and December (UV index 2).
Average cloud cover in December
Kirby, WY
- Average cloud cover in December: 32
The month with the most cloud cover is February (Cloud cover 35).
The months with the least cloud cover are July and August (Cloud cover 14).
Average visibility in December
Kirby, WY
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Kirby, Wyoming, USA
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