As of 01:39 MDT

Mountain View, CO weather in December

76°

Mountain View, Sunday, 9 August, 01:39

Partly cloudy. Feels like 74°. High 94°, low 69°.

Pressure29.85 inHg

Wind3 mph S

Humidity28%

Visibility6.2 mi

Dew point40°

See detailed hourly forecast

In December, Mountain View, CO averages a high of 40.3° and a low of 15.7°. About 1.0 inches of precipitation fall over the month (5 wet days). The record high is 72.9° (2025) and the record low -24.3° (1978). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	43.3°	17.8°	12%	71.6° (2021)	0.7° (1985)
2	43.7°	19°	12%	68.9° (2021)	-4.7° (2004)
3	42.8°	18.5°	13%	66.7° (2017)	-9.6° (2006)
4	44.4°	18.1°	10%	64° (2021)	-9.6° (2009)
5	42.6°	17.2°	15%	65.8° (2012)	-21.1° (2013)
6	40.3°	17.6°	20%	60.4° (2023)	-22° (1972)
7	40.6°	17.2°	20%	59.7° (1965)	-15.2° (2013)
8	40.5°	16.5°	22%	62.6° (2020)	-24.3° (1978)
9	40.5°	15.6°	20%	61.2° (1981)	-16.4° (1978)
10	41.7°	15.1°	13%	61.2° (1990)	-20.9° (1972)
11	41.9°	16.9°	15%	64.2° (2025)	-12.6° (1972)
12	41.5°	16.5°	10%	65.7° (2017)	-20.2° (1961)
13	41°	16.9°	13%	63.1° (2025)	-12.6° (1961)
14	40.3°	16.5°	18%	63.7° (2021)	-7.2° (1961)
15	40.1°	15.8°	17%	60.3° (2025)	-16.8° (2008)
16	40.3°	15.6°	15%	62.6° (2025)	-2.9° (1965)
17	40.8°	16.7°	12%	66.2° (1980)	-6.5° (2016)
18	39.7°	15.3°	18%	56.7° (2013)	-22.5° (2016)
19	40.3°	15.6°	20%	67.6° (2025)	-11° (1996)
20	40.3°	15.8°	15%	59.7° (2017)	-6.9° (1973)
21	39.7°	15.6°	20%	59.9° (2018)	-18° (1990)
22	38.1°	14°	25%	72.9° (2025)	-19.8° (1998)
23	37.8°	13.8°	20%	64° (1964)	-17.9° (1990)
24	37.9°	12°	23%	66.4° (2025)	-19.1° (1998)
25	39.2°	14°	17%	68.7° (2025)	-10.5° (1983)
26	39.9°	14.2°	13%	65.1° (2025)	-18° (1962)
27	39.2°	15.4°	18%	66° (1980)	-9.9° (2015)
28	38.5°	15.1°	22%	56.5° (1999)	-13.2° (2015)
29	37.8°	13.3°	10%	57.9° (2017)	-13.4° (1983)
30	38.1°	13.3°	17%	59.5° (1980)	-11.2° (1982)
31	35.8°	12.2°	22%	58.3° (2025)	-17° (2014)