Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Greeley witnesses the coldest weather in December, with temperatures averaging a high of 38.3°F (3.5°C) and a low of 20.1°F (-6.6°C).Humidity
The months with the highest humidity in Greeley are January and December, with an average relative humidity of 64%.Rainfall
The month with the least rainfall is December, when the rain falls for 1.7 days and typically collects 0.2" (5mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Greeley, in December, during 4.5 snowfall days, 1.18" (30mm) of snow is typically accumulated. In Greeley, Colorado, during the entire year, snow falls for 26.6 days and aggregates up to 13.62" (346mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:03 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:42 pm MST.
Sunshine
February and December, with an average of 6.6h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: In December, a daily UV index of 2 turns into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What are the coldest months in Greeley?
How cold is it in Greeley in December?
What are the most humid months in Greeley?
What is the average humidity in December in Greeley?
What is the driest month in Greeley?
How much does it rain in Greeley in December?
How much does it snow in Greeley in December?
What is the month with the shortest days in Greeley?
What is the average length of the day in December in Greeley?
When are sunrise and sunset in December in Greeley?
What are the months with the least sunshine in Greeley?
How many hours of sunshine does Greeley have in December?
When is the lowest UV index in Greeley?
What is the UV index intensity in December in Greeley?
Average temperature in December
Greeley, CO
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is December (38.3°F).
- Average low temperature in December: 20.1°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is December (20.1°F).
Average pressure in December
Greeley, CO
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Greeley, CO
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is December (6mph).
Average humidity in December
Greeley, CO
- Average humidity in December: 64%
The months with the highest relative humidity are January and December (64%).
The months with the lowest relative humidity are August and September (44%).
Average rainfall in December
Greeley, CO
- Average rainfall in December: 0.2"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is December (0.2").
Average rainfall days in December
Greeley, CO
- Average rainfall days in December: 1.7 days
The month with the highest number of rainy days is July (11.4 days).
The month with the least rainy days is November (1.6 days).
Average snowfall in December
Greeley, CO
- Average snowfall in December: 1.18"
The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Greeley, CO
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is February (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Greeley, CO
- Average daylight in December: 9h and 2min
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 4min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are February and December (Average sunshine: 6h and 36min).
Average sunshine days in December
Greeley, CO
- Average sunshine days in December: 25.9 days
The month with the most sunshine days is December (25.9 days).
The month with the least sunshine days is July (16.7 days).
Average UV index in December
Greeley, CO
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Greeley, CO
- Average cloud cover in December: 27
The month with the most cloud cover is February (Cloud cover 29).
The month with the least cloud cover is June (Cloud cover 16).
Average visibility in December
Greeley, 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).
Greeley, Colorado, USA
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