December weather forecastManassa, CO
December
Weather in December
December, the first month of the winter in Manassa, is also an icy month, with an average temperature fluctuating between 15.4°F (-9.2°C) and 33.8°F (1°C).Temperature
The beginning of December involves a decrease in the average high-temperature, transitioning from a chilly 46.2°F (7.9°C) in November to an icy 33.8°F (1°C). Throughout the month of December, Manassa witnesses an average temperature of 15.4°F (-9.2°C).Humidity
In December, the average relative humidity is 72%.Rainfall
November and December are months with the least rain when the rain falls for 6.1 days and typically aggregates up to 0.39" (10mm) of rain.Snowfall
Months with snowfall are January through May, September through December. In Manassa, in December, snow falls for 8.5 days, with typically accumulated 3.19" (81mm) of snow. In Manassa, during the entire year, snow falls for 44.9 days and aggregates up to 22.6" (574mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 6:59 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:56 pm MST.
Sunshine
In Manassa, the average sunshine in December is 7h.UV index
The months with the lowest UV index in Manassa are January, February, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 2 in December transforms into this advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. To protect against the Sun's most potent rays, avoid direct exposure around midday. Always opt for UVA and UVB-resistant sunglasses on radiant days. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Manassa, CO
- Average high temperature in December: 33.8°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in December: 15.4°F
The month with the highest average low temperature is July (50.5°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in December
Manassa, CO
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is April (29.91"Hg).
Average wind speed in December
Manassa, CO
- Average wind speed in December: 4.8mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Manassa, CO
- Average humidity in December: 72%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is June (37%).
Average rainfall in December
Manassa, CO
- Average rainfall in December: 0.39"
The wettest month (with the highest rainfall) is May (1.02").
The driest months (with the least rainfall) are November and December (0.39").
Average rainfall days in December
Manassa, CO
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is July (10.1 days).
The month with the least rainy days is November (3 days).
Average snowfall in December
Manassa, CO
- Average snowfall in December: 3.19"
The month with the highest snowfall is March (3.98").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Manassa, CO
- Average snowfall days in December: 8.5 days
The month with the highest number of snowfall days is February (9.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Manassa, CO
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 7h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).
Average sunshine days in December
Manassa, CO
- Average sunshine days in December: 21.4 days
The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is April (16.9 days).
Average UV index in December
Manassa, CO
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Manassa, CO
- Average cloud cover in December: 22
The month with the most cloud cover is January (Cloud cover 25).
The months with the least cloud cover are June, September, October and November (Cloud cover 12).
Average visibility in December
Manassa, 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).
