December weather forecastPenrose, CO
December
Weather in December
December, the first month of the winter in Penrose, is also a wintry month, with an average temperature fluctuating between 38.3°F (3.5°C) and 18.5°F (-7.5°C).Temperature
Penrose's weather changes with the onset of December, slightly falling from a chilly 48.4°F (9.1°C) in November to an icy 38.3°F (3.5°C). Penrose witnesses a consistent average low-temperature of 18.5°F (-7.5°C) throughout December.Humidity
In Penrose, the average relative humidity in December is 65%.Rainfall
In December, the rain falls for 4 days. Throughout December, 0.35" (9mm) of precipitation is accumulated. In Penrose, Colorado, during the entire year, the rain falls for 108.6 days and collects up to 10.83" (275mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Penrose, in December, during 5.5 snowfall days, 2.6" (66mm) of snow is typically accumulated. Throughout the year, there are 38 snowfall days, and 23.94" (608mm) of snow is accumulated.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 6:59 am and sunset at 4:39 pm. On the last day of December, sunrise is at 7:17 am and sunset at 4:49 pm MST.
Sunshine
In December, the average sunshine is 7.2h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Penrose. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 2 during December translates into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Penrose, CO
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in December: 18.5°F
The month with the highest average low temperature is July (55.8°F).
The coldest month (with the lowest average low temperature) is December (18.5°F).
Average pressure in December
Penrose, CO
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is April (29.91"Hg).
Average wind speed in December
Penrose, CO
- Average wind speed in December: 7.4mph
The windiest months (with the highest average wind speed) are January, February and March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Penrose, CO
- Average humidity in December: 65%
The months with the highest relative humidity are January and February (69%).
The month with the lowest relative humidity is June (40%).
Average rainfall in December
Penrose, CO
- Average rainfall in December: 0.35"
The wettest month (with the highest rainfall) is July (2.2").
The driest months (with the least rainfall) are January and November (0.31").
Average rainfall days in December
Penrose, CO
- Average rainfall days in December: 4 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (2.7 days).
Average snowfall in December
Penrose, CO
- Average snowfall in December: 2.6"
The month with the highest snowfall is February (5.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Penrose, CO
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Penrose, CO
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 7h and 12min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 7h and 0min).
Average sunshine days in December
Penrose, CO
- Average sunshine days in December: 23.8 days
The month with the most sunshine days is November (24.7 days).
The month with the least sunshine days is July (4.7 days).
Average UV index in December
Penrose, 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
Penrose, CO
- Average cloud cover in December: 20
The months with the most cloud cover are February and April (Cloud cover 23).
The months with the least cloud cover are June, September, October and November (Cloud cover 14).
Average visibility in December
Penrose, CO
- 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).
