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 its high-temperature average of 22.5°F (-5.3°C) and a low-temperature average of 0.9°F (-17.3°C), is the coldest month in Dillon.Humidity
In Dillon, the average relative humidity in December is 85%.Rainfall
In Dillon, during December, the rain falls for 4.3 days and regularly aggregates up to 1.18" (30mm) of precipitation. In Dillon, during the entire year, the rain falls for 111.5 days and collects up to 23.19" (589mm) of precipitation.Snowfall
Months with snowfall in Dillon are January through December. In Dillon, in December, during 16.7 snowfall days, 9.49" (241mm) of snow is typically accumulated. Throughout the year, in Dillon, there are 149 snowfall days, and 108.54" (2757mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:06 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:50 pm MST.
Sunshine
In December, the average sunshine in Dillon, Colorado, is 5.6h.UV index
The months with the lowest UV index in Dillon are February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 1 suggests this advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
What is the coldest time of year in Dillon?
How cold is it in Dillon in December?
What is the average humidity in December in Dillon?
How much does it rain in Dillon in December?
How many days does it snow in December in Dillon?
What is the month with the shortest days in Dillon?
What is the average length of the day in December in Dillon?
When is the sunrise / sunset in December in Dillon?
How many hours of sunshine does Dillon have in December?
What are the months with the lowest UV index in Dillon?
What is the UV index intensity in December in Dillon?
Average temperature in December
Dillon, CO
- Average high temperature in December: 22.5°F
The warmest month (with the highest average high temperature) is July (67.1°F).
The month with the lowest average high temperature is December (22.5°F).
- Average low temperature in December: 0.9°F
The month with the highest average low temperature is July (39.7°F).
The coldest month (with the lowest average low temperature) is December (0.9°F).
Average pressure in December
Dillon, CO
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is April (29.93"Hg).
Average wind speed in December
Dillon, CO
- Average wind speed in December: 6.2mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Dillon, CO
- Average humidity in December: 85%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is June (53%).
Average rainfall in December
Dillon, CO
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in December
Dillon, CO
- Average rainfall days in December: 4.3 days
The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is November (2.8 days).
Average snowfall in December
Dillon, CO
- Average snowfall in December: 9.49"
The month with the highest snowfall is April (18.27").
The month with the least snowfall is July (0.47").
Average snowfall days in December
Dillon, CO
- Average snowfall days in December: 16.7 days
The month with the highest number of snowfall days is April (21 days).
The month with the least snowfall days is July (1.8 days).
Average daylight in December /
Average sunshine in December
Dillon, CO
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in December
Dillon, CO
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (5.3 days).
Average UV index in December
Dillon, CO
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 4).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in December
Dillon, CO
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 19).
Average visibility in December
Dillon, CO
- Average visibility in December: 4mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
Dillon, Colorado, USA
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