Greeley, CO weather in December
Expect chilly, mostly dry weather with some snow in Greeley in December, with highs near 43°F and lows near 18°F. Rain or snow falls on about 4 days. Snowfall averages about 5.6 in. It is one of the coldest months in Greeley.
- Normal high
- 43°F
- Normal low
- 18°F
- Wet days
- 4
- 0.6 in total
- Snowfall
- 5.6 in
- snow on the ground 10 days
How December changes from start to finish
| December 1 | December 31 | |
|---|---|---|
| Normal high | 46°F | 43°F |
| Normal low | 21°F | 17°F |
| Chance of a wet day | 12% | 12% |
| Sunrise / sunset | 7:02 am / 4:33 pm | 7:21 am / 4:41 pm |
| Daylight | 9.5 h | 9.3 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Mountain Time).
A typical December day
- 6 am25°Fdew point 13°F
- 9 am31°Fdew point 15°F
- Noon40°Fdew point 16°F
- 3 pm41°Fdew point 16°F
- 6 pm31°Fdew point 16°F
- 9 pm28°Fdew point 15°F
NOAA hourly normals (local standard time) from Denver Intl Airport (41 mi away); average wind 10 mph; clear or few clouds in 37% of daytime hours, mostly cloudy or overcast in 46%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F1 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow4 of 31
- Notable rainat least 0.10 in2 of 31
- Freezing nightslow 32°F or below30 of 31
- Snow on the groundsnow depth 1 in or more10 of 31
Average days per December, counted from daily records for each year 1991-2020.
Rain and snow in December
Normal precipitation is 0.6 in; a dry December brings about 0.1 in and a wet one about 0.7 in (25th and 75th percentiles). Days with half an inch or more are rare. Normal snowfall is 5.6 in, with about 2 days of an inch or more.
How December varies from year to year
- Warmest December, 1991-20202010: average high 50°F
- Coolest December1992: average high 32°F
- Wettest December2007: 1.5 in
- Driest December1996: no measurable precipitation
- Highest reading76°F (December 4, 2007)
- Lowest reading-17°F (December 31, 2014)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
December compared with November and January
| November | December | January | |
|---|---|---|---|
| Normal high | 54°F | 43°F | 44°F |
| Normal low | 26°F | 18°F | 18°F |
| Wet days | 4 | 4 | 4 |
| Comfortable days | 8 | 1 | 1 |
| Daylight | 9.9 h | 9.3 h | 9.7 h |
Highs change by -11°F from November and +1°F into January.
Nearby alternatives in December
- Cooler: Breckenridge, CO96 mi · high 29°F · 11 wet days
How Greeley ranks in December
- Normal high257th warmest of 378 cities; 10th of 17 in Colorado
- Wet days11th driest of 378
- Comfortable days219th most of 340
What to pack for Greeley in December
- A warm jacket – lows near 18°F, highs near 43°F
- Layers – afternoons near 43°F but nights near 18°F
- Waterproof boots – snow on the ground on about 10 days
- A hat and gloves – about 30 freezing nights
Heating and cooling
December has 1066 heating degree days and 0 cooling degree days (base 65°F), 16% of the year's total heating and cooling demand.
Questions
How cold is Greeley in December?
The normal high is 43°F and the normal low is 18°F. From 1991 to 2020 the coldest December reading was -17°F (most recently on December 31, 2014).
Does it rain a lot in Greeley in December?
About 4 days in December have at least 0.01 in of precipitation, and the normal total is 0.6 in. The wettest December in 1991-2020 was in 2007 (1.5 in); the driest was in 1996, with no measurable precipitation.
Does it snow in Greeley in December?
Yes. Normal snowfall in December is 5.6 in, and snow covers the ground on about 10 days.
Is December a good time to visit Greeley?
December ranks 12th of 12 months on our comfort score for Greeley (37 out of 100). It has about 1 comfortable day. The best months are April and May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: Greeley Unc (USC00053553), 1.6 mi SSE of the city center, 4,715 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Denver Intl Airport (USW00003017), 41 mi S of the city center, 5,414 ft (740 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Cloud cover: Aurora Buckley Fld ANGB (USW00023036), 49 mi S of the city center, 5,663 ft (989 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Denver International Airport (725650-03017), 40 mi S of the city center, 5,404 ft (730 ft higher than the city). Hourly observations, 1991-2020.