As of 18:23 PDT

Cornelius, OR weather in December

87°

Cornelius, Saturday, 8 August, 18:23

Clear. Feels like 85°. High 88°, low 58°.

Pressure30.00 inHg

Wind9 mph NW

Humidity32%

Visibility6.2 mi

Dew point54°

See detailed hourly forecast

In December, Cornelius, OR averages a high of 45.1° and a low of 35.3°. About 8.1 inches of precipitation fall over the month (17 wet days). The record high is 61.7° (1980) and the record low -2° (1972). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	46.6°	36.9°	57%	56.5° (2021)	18.3° (1985)
2	47.5°	37.6°	62%	56.3° (1975)	18.1° (1985)
3	46.9°	36.9°	53%	57° (1979)	24.1° (1996)
4	46°	36.1°	58%	57.9° (2023)	24.6° (1994)
5	45.7°	35.2°	48%	58.3° (2023)	20.7° (1972)
6	45.5°	36.1°	58%	56.1° (2023)	19.6° (1972)
7	44.8°	35.8°	50%	56.7° (1962)	10.4° (1972)
8	45.5°	35.2°	47%	57.7° (2015)	-2° (1972)
9	45.5°	35.4°	65%	56.7° (2015)	3.4° (1972)
10	46°	36.5°	63%	60.1° (1993)	5.4° (1972)
11	45.9°	36.3°	67%	59.9° (2025)	11.7° (1972)
12	45.9°	36.1°	62%	57.4° (1988)	22.5° (1972)
13	45.5°	35.6°	57%	56.1° (1977)	4.3° (1972)
14	45.5°	36.1°	63%	55.4° (1962)	23.5° (2008)
15	45.5°	35.1°	45%	60.6° (2025)	21° (2008)
16	46°	36.3°	48%	61.7° (1980)	11.8° (1964)
17	45.7°	35.6°	48%	56.8° (2025)	7.7° (1964)
18	45.5°	35.1°	48%	57.4° (2004)	14.4° (1964)
19	44.6°	34.5°	58%	55.8° (2025)	20.1° (1984)
20	44.2°	35.8°	68%	55.4° (2014)	16° (1990)
21	44.4°	34.3°	60%	55.8° (2020)	11.3° (1990)
22	43.9°	34.2°	63%	55° (1964)	11.8° (1983)
23	44.2°	34.3°	52%	54.3° (2014)	11.1° (1983)
24	44.2°	34°	52%	57.4° (2005)	9.1° (1983)
25	44.1°	34.3°	58%	57.6° (1980)	13.3° (1983)
26	44.4°	34.3°	63%	60.8° (1980)	21.6° (1971)
27	44.6°	35.2°	58%	58.5° (1980)	18.5° (1971)
28	43.7°	34.5°	57%	53.8° (1963)	19.9° (1983)
29	43.3°	33.6°	60%	53.2° (2017)	14.9° (1990)
30	44.4°	33.4°	47%	57.2° (1980)	9° (1968)
31	43.3°	33.1°	53%	56.8° (1980)	8.6° (1968)