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Pendleton December Weather

Averages and records for weather in Pendleton, Oregon in the month of December.

Typical Pendleton December Weather 1991–2020
Average daily high	40.8 °F
Average daily low	27.9 °F
Average monthly precipitation	1.5 inches
Average monthly snow	5.2 inches
Daily chance of precipitation	40.2%
Daily chance of snow	12.5%

Pendleton December Weather Records 1892–2024
Highest temperature	75 °F	December 12, 1921
Lowest temperature	-28 °F	December 13, 1919
Highest daily low	60 °F	December 26, 1980
Lowest daily high	-7 °F	December 30, 1968
Hottest average high temperature	52.9 °F	1917
Coldest average high temperature	23.5 °F	1985
Most daily precipitation	1.3 inches	December 4, 1978
Most monthly precipitation	4.7 inches	1973
Most daily snow	12.0 inches	December 10, 1919
Most monthly snow	32.5 inches	2008

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
December 1	43.6	29.6	68	-6
December 2	43.3	29.3	67	6
December 3	43.0	29.2	64	10
December 4	42.7	29.0	70	-1
December 5	42.5	28.8	67	1
December 6	42.4	28.8	65	0
December 7	42.3	28.7	64	-7
December 8	42.1	28.6	67	-11
December 9	42.0	28.5	65	-9
December 10	41.8	28.3	67	-13
December 11	41.6	28.2	67	-10
December 12	41.4	28.1	75	-23
December 13	41.3	28.1	63	-28
December 14	41.1	28.1	64	-22
December 15	40.9	28.1	67	-18
December 16	40.7	27.9	62	-12
December 17	40.6	27.8	62	-12
December 18	40.5	27.7	68	-5
December 19	40.5	27.7	62	-7
December 20	40.5	27.7	66	-12
December 21	40.5	27.7	68	-16
December 22	40.5	27.6	68	-15
December 23	40.6	27.6	64	-19
December 24	40.6	27.7	62	-19
December 25	40.6	27.7	61	-16
December 26	40.6	27.7	67	-9
December 27	40.5	27.6	63	6
December 28	40.4	27.5	64	2
December 29	40.4	27.4	65	-13
December 30	40.4	27.4	63	-12
December 31	40.4	27.4	65	-10

Weather Station Details

Years	Station	Coordinates
1928–2024	Pendleton	location
1892–1927	Pendleton Downtown	location