December weather forecastAmherst, CO
December
Weather in December
The first month of the winter, December, is also a wintry month in Amherst, Colorado, with an average temperature ranging between max 39.2°F (4°C) and min 23.2°F (-4.9°C).Temperature
In Amherst, December records the lowest average temperatures, peaking at 39.2°F (4°C) and reaching a low of 23.2°F (-4.9°C).Humidity
The average relative humidity in December is 65%.Rainfall
In Amherst, in December, it is raining for 4.2 days, with typically 0.59" (15mm) of accumulated precipitation. In Amherst, during the entire year, the rain falls for 119.5 days and collects up to 16.14" (410mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Amherst. In December, it is snowing for 6.8 days. Throughout December, 2.13" (54mm) of snow is accumulated. Throughout the year, there are 37.9 snowfall days, and 15.55" (395mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 6:53 am and sunset at 4:22 pm. On the last day of December, sunrise is at 7:12 am and sunset at 4:31 pm MST.
Sunshine
The months with the least sunshine are February and December, with an average of 6.2h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 in December translates into this advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Amherst, CO
- Average high temperature in December: 39.2°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is December (39.2°F).
- Average low temperature in December: 23.2°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is December (23.2°F).
Average pressure in December
Amherst, CO
- Average pressure in December: 30.11"Hg
The months with the highest atmospheric pressure are January and December (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in December
Amherst, CO
- Average wind speed in December: 10.6mph
The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest month (with the lowest average wind speed) is August (9.4mph).
Average humidity in December
Amherst, CO
- Average humidity in December: 65%
The months with the highest relative humidity are January and February (66%).
The month with the lowest relative humidity is September (51%).
Average rainfall in December
Amherst, CO
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in December
Amherst, CO
- Average rainfall days in December: 4.2 days
The month with the highest number of rainy days is May (17.8 days).
The months with the least rainy days are November and December (4.2 days).
Average snowfall in December
Amherst, CO
- Average snowfall in December: 2.13"
The month with the highest snowfall is February (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Amherst, CO
- Average snowfall days in December: 6.8 days
The months with the highest number of snowfall days are January and February (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
Amherst, CO
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 6h and 12min
The months with the most sunshine are July and August (Average sunshine: 11h and 30min).
The months with the least sunshine are February and December (Average sunshine: 6h and 12min).
Average sunshine days in December
Amherst, CO
- Average sunshine days in December: 22.1 days
The month with the most sunshine days is November (22.7 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in December
Amherst, CO
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Amherst, CO
- Average cloud cover in December: 31
The month with the most cloud cover is February (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Amherst, 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).
