December weather forecastLeadville, CO
December
Weather in December
Carrying the baton from November, December introduces Leadville, Colorado, to the intense cold of the winter. Marked by the shortest daylight hours and long nights, the city often sees a white Christmas due to the 11.06" (281mm) of snowfall. As the mercury rarely edges above freezing, residents stay indoors cozying up by the fire. The chilling December hands off to January in an almost unbroken relay of winter's reign over this high-altitude city.Temperature
The coldest month is December, with an average high-temperature of 23°F (-5°C) and an average low-temperature of 2.1°F (-16.6°C).Humidity
The average relative humidity in December is 84%.Rainfall
In December, the rain falls for 5.5 days. Throughout December, 1.34" (34mm) of precipitation is accumulated. In Leadville, during the entire year, the rain falls for 103.1 days and collects up to 19.65" (499mm) of precipitation.Snowfall
January through December are months with snowfall. In Leadville, Colorado, in December, during 17 snowfall days, 11.06" (281mm) of snow is typically accumulated. In Leadville, Colorado, during the entire year, snow falls for 141.6 days and aggregates up to 104.69" (2659mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:06 am and sunset at 4:42 pm. On the last day of December, sunrise is at 7:24 am and sunset at 4:52 pm MST.
Sunshine
In Leadville, the average sunshine in December is 5.9h.UV index
The months with the lowest UV index are February and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 1 suggests this advice:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Leadville, CO
- Average high temperature in December: 23°F
The warmest month (with the highest average high temperature) is July (66.7°F).
The month with the lowest average high temperature is December (23°F).
- Average low temperature in December: 2.1°F
The month with the highest average low temperature is July (40.5°F).
The coldest month (with the lowest average low temperature) is January (1.8°F).
Average pressure in December
Leadville, CO
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is April (29.94"Hg).
Average wind speed in December
Leadville, CO
- Average wind speed in December: 5.9mph
The windiest months (with the highest average wind speed) are February and June (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in December
Leadville, CO
- Average humidity in December: 84%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is June (52%).
Average rainfall in December
Leadville, CO
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is November (0.98").
Average rainfall days in December
Leadville, CO
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (2.9 days).
Average snowfall in December
Leadville, CO
- Average snowfall in December: 11.06"
The month with the highest snowfall is March (18.11").
The month with the least snowfall is August (0.28").
Average snowfall days in December
Leadville, CO
- Average snowfall days in December: 17 days
The month with the highest number of snowfall days is April (19.9 days).
The months with the least snowfall days are July and August (1 days).
Average daylight in December /
Average sunshine in December
Leadville, CO
- Average daylight in December: 9h and 30min
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 30min).
- Average sunshine in December: 5h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days in December
Leadville, CO
- Average sunshine days in December: 13.9 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is April (6.8 days).
Average UV index in December
Leadville, CO
- Average UV index in December: 1
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in December
Leadville, CO
- Average cloud cover in December: 43
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 17).
Average visibility in December
Leadville, CO
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
