December weather forecastHartsel, CO
December
Weather in December
December, the first month of the winter in Hartsel, is also a subzero cold month, with an average temperature fluctuating between 7.2°F (-13.8°C) and 28.4°F (-2°C).Temperature
December, recording an average high temperature of 28.4°F (-2°C) and a low temperature of 7.2°F (-13.8°C), is Hartsel's coldest month.Humidity
In December, the average relative humidity is 76%.Rainfall
In December, the rain falls for 4 days. Throughout December, 0.63" (16mm) of precipitation is accumulated. In Hartsel, during the entire year, the rain falls for 112.5 days and collects up to 14.13" (359mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Hartsel, in December, snow falls for 11.8 days, with typically accumulated 5.12" (130mm) of snow. In Hartsel, during the entire year, snow falls for 88 days and aggregates up to 51.5" (1308mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Hartsel.On the first day of December in Hartsel, Colorado, sunrise is at 7:03 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:51 pm MST.
Sunshine
In December, the average sunshine in Hartsel is 6.9h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Hartsel. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hartsel, CO
- Average high temperature in December: 28.4°F
The warmest month (with the highest average high temperature) is July (71.6°F).
The month with the lowest average high temperature is December (28.4°F).
- Average low temperature in December: 7.2°F
The month with the highest average low temperature is July (45.9°F).
The coldest months (with the lowest average low temperature) are January and December (7.2°F).
Average pressure in December
Hartsel, CO
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is April (29.93"Hg).
Average wind speed in December
Hartsel, CO
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Hartsel, CO
- Average humidity in December: 76%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is June (45%).
Average rainfall in December
Hartsel, CO
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is July (2.64").
The driest months (with the least rainfall) are January and November (0.51").
Average rainfall days in December
Hartsel, CO
- Average rainfall days in December: 4 days
The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is November (3.2 days).
Average snowfall in December
Hartsel, CO
- Average snowfall in December: 5.12"
The month with the highest snowfall is April (8.98").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Hartsel, CO
- Average snowfall days in December: 11.8 days
The month with the highest number of snowfall days is April (13.6 days).
The month with the least snowfall days is August (0 days).
Average daylight in December /
Average sunshine in December
Hartsel, 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: 6h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in December
Hartsel, CO
- Average sunshine days in December: 18.7 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (7 days).
Average UV index in December
Hartsel, CO
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in December
Hartsel, CO
- Average cloud cover in December: 26
The month with the most cloud cover is February (Cloud cover 31).
The month with the least cloud cover is June (Cloud cover 16).
Average visibility in December
Hartsel, CO
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
