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
The coldest time of the year is December, with temperatures averaging a high of 29.7°F (-1.3°C) and a low of 15.6°F (-9.1°C).Humidity
In December, the average relative humidity in Ralston is 74%.Rainfall
In Ralston, during December, the rain falls for 4.9 days and regularly aggregates up to 0.35" (9mm) of precipitation. Throughout the year, in Ralston, there are 105.7 rainfall days, and 8.19" (208mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In Ralston, in December, during 7.5 snowfall days, 2.01" (51mm) of snow is typically accumulated. In Ralston, Wyoming, during the entire year, snow falls for 52.1 days and aggregates up to 16.97" (431mm) of snow.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year in Ralston.On the first day of December, sunrise is at 7:33 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 4:45 pm MST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 6.7h of sunshine.UV index
The months with the lowest UV index in Ralston are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What part of the year is the coldest in Ralston?
How cold is December in Ralston?
What is the average humidity in December in Ralston?
How many days does it rain in December in Ralston?
How many days does it snow in December in Ralston?
What is the month with the shortest days in Ralston?
How many hours of daylight does Ralston have in December?
When are sunrise and sunset in December in Ralston?
What are the months with the least sunshine in Ralston?
How many hours of sunshine does Ralston have in December?
What is the month with the lowest UV index in Ralston?
What is the UV index reading in December in Ralston?
Average temperature in December
Ralston, WY
- Average high temperature in December: 29.7°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (29.7°F).
- Average low temperature in December: 15.6°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is December (15.6°F).
Average pressure in December
Ralston, WY
- Average pressure in December: 30.16"Hg
The months with the highest atmospheric pressure are January and December (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Ralston, WY
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Ralston, WY
- Average humidity in December: 74%
The month with the highest relative humidity is January (76%).
The months with the lowest relative humidity are July and August (37%).
Average rainfall in December
Ralston, WY
- Average rainfall in December: 0.35"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days in December
Ralston, WY
- Average rainfall days in December: 4.9 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is December (4.9 days).
Average snowfall in December
Ralston, WY
- Average snowfall in December: 2.01"
The month with the highest snowfall is February (3.9").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Ralston, WY
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is February (11 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Ralston, WY
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 6h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 42min).
Average sunshine days in December
Ralston, WY
- Average sunshine days in December: 21.7 days
The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in December
Ralston, WY
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Ralston, WY
- Average cloud cover in December: 28
The month with the most cloud cover is February (Cloud cover 32).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility in December
Ralston, 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).
Ralston, Wyoming, USA
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