As of 15:08 MDT

Westminster, CO weather in December

96°

Westminster, Saturday, 8 August, 15:08

Overcast. Feels like 92°. High 96°, low 66°.

Pressure29.68 inHg

Wind4 mph NE

Humidity14%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

In December, Westminster, CO averages a high of 39.9° and a low of 15.6°. About 0.9 inches of precipitation fall over the month (5 wet days). The record high is 71.6° (2025) and the record low -23.6° (1978). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	42.8°	18°	10%	69.8° (2021)	-2.4° (2004)
2	43.2°	19°	13%	65.7° (2021)	-7.8° (2004)
3	42.4°	18.5°	17%	63.3° (2017)	-9.2° (2006)
4	43.9°	17.8°	8%	63° (2021)	-9.9° (2009)
5	42.4°	17.4°	13%	65.7° (2012)	-18.8° (2013)
6	39.9°	17.4°	18%	57.4° (2023)	-18.8° (1972)
7	40.3°	17.6°	22%	59.4° (1965)	-12.3° (2013)
8	40.5°	16.9°	22%	60.6° (2020)	-23.6° (1978)
9	40.6°	15.6°	18%	60.1° (1981)	-16.6° (1978)
10	41.5°	15.6°	12%	61.3° (1990)	-17.5° (1972)
11	41.7°	17.1°	15%	62.6° (2025)	-11.9° (1972)
12	41.5°	16.7°	12%	64.8° (2017)	-19.5° (1961)
13	40.6°	16.7°	17%	61° (2025)	-13° (1961)
14	40.1°	16.7°	18%	61° (2021)	-8.3° (1972)
15	40.1°	15.6°	17%	59.7° (1962)	-15.3° (2008)
16	39.7°	15.4°	12%	62.4° (2025)	-2.9° (1965)
17	40.5°	16.5°	12%	65.8° (1980)	-5.4° (2016)
18	39.2°	15.3°	20%	55.9° (1994)	-20° (2016)
19	39.7°	15.6°	20%	67.5° (2025)	-9.4° (1996)
20	39.7°	15.4°	13%	58.8° (1981)	-8.3° (1973)
21	39.4°	15.3°	18%	60.6° (2025)	-18° (1990)
22	37.9°	14.2°	23%	71.6° (2025)	-19.7° (1990)
23	37°	14°	18%	63.5° (1964)	-18.6° (1990)
24	37.2°	11.8°	22%	66° (2025)	-19.5° (1998)
25	38.7°	13.6°	18%	69.3° (2025)	-11° (1983)
26	39.2°	13.6°	12%	63.3° (2025)	-16.6° (1962)
27	38.8°	14.7°	17%	65.3° (1980)	-10.8° (2015)
28	38.1°	14.7°	23%	56.7° (1999)	-12.1° (2015)
29	37.2°	13.1°	10%	54.9° (2017)	-11.9° (1983)
30	37.8°	12.7°	17%	60.3° (1980)	-10.5° (1982)
31	35.4°	12.2°	18%	57° (2005)	-18° (2014)