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Eureka December Weather

Averages and records for weather in Eureka, California in the month of December.

Typical Eureka December Weather 1991–2020
Average daily high	55.1 °F
Average daily low	40.5 °F
Average monthly precipitation	8.1 inches
Average monthly snow	none
Daily chance of precipitation	55.2%
Daily chance of snow	0%

Eureka December Weather Records 1941–2024
Highest temperature	77 °F	December 30, 1963
Lowest temperature	21 °F	December 9, 1972
Highest daily low	62 °F	December 9, 2014
Lowest daily high	34 °F	December 21, 1990
Hottest average high temperature	59.4 °F	1979
Coldest average high temperature	49.8 °F	1948
Most daily precipitation	6.8 inches	December 27, 2002
Most monthly precipitation	23.3 inches	2002
Most daily snow	1.9 inches	December 7, 1972
Most monthly snow	1.9 inches	1972

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	56.4	41.7	69	33
December 2	56.3	41.5	68	32
December 3	56.2	41.4	71	31
December 4	56.0	41.3	69	28
December 5	55.9	41.2	67	26
December 6	55.9	41.1	64	29
December 7	55.8	41.1	67	28
December 8	55.7	41.0	72	24
December 9	55.6	40.9	67	21
December 10	55.6	40.7	69	26
December 11	55.4	40.7	69	26
December 12	55.4	40.6	70	29
December 13	55.3	40.6	66	30
December 14	55.2	40.6	70	30
December 15	55.2	40.5	65	30
December 16	55.1	40.5	66	29
December 17	55.0	40.5	72	27
December 18	55.0	40.5	69	29
December 19	55.0	40.4	67	28
December 20	54.9	40.4	71	27
December 21	54.9	40.3	65	23
December 22	54.9	40.3	65	22
December 23	54.8	40.2	68	24
December 24	54.8	40.2	66	28
December 25	54.8	40.3	68	30
December 26	54.8	40.3	75	29
December 27	54.8	40.3	66	30
December 28	54.8	40.3	65	32
December 29	54.8	40.4	66	30
December 30	54.9	40.4	77	27
December 31	54.9	40.5	67	29

Weather Station Details

Years	Station	Coordinates
1941–2024	Eureka Woodley Island	location