Weather Averages for San Francisco, CA

Weather Averages for
San Francisco, CA

Latitude: 37°46'N, Longitude: 122°26'W, Elevation: 128.0 ft, Distance: 1.01 mi

	Unit	Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average temperature over 72 years	°F	57	51	53	55	55	57	60	60	60	62	62	57	51
Average high temperature over 72 years	°F	62	55	60	60	62	64	66	66	66	69	69	64	57
Average low temperature over 72 years	°F	51	46	48	48	50	51	53	53	53	55	55	51	46
Highest recorded temperature over 72 years	°F	102	78	80	84	93	96	100	102	96	100	102	86	75
Lowest recorded temperature over 72 years	°F	26	30	31	35	39	44	46	46	48	48	43	39	26
Average number of rainy days over 57 years	days	67	11	10	11	6	3	1	-	1	2	4	8	10
Average number of days above 90°F over 72 years	days	2	-	-	-	-	-	-	-	-	1	-	-	-
Average precipitation over 63 years	in	20.4	4.1	3.5	2.9	1.5	0.5	0.2	-	-	0.2	1.1	2.6	3.9
Most recorded rainfall over 63 years	in	43.8	10.7	10.1	9.0	5.5	4.0	1.4	0.2	0.5	2.1	5.5	8.2	11.5
Least recorded rainfall over 63 years	in	10.0	0.5	-	-	-	-	-	-	-	-	-	-	-
Average number of days with thunderstorms over 7 years	days	5	-	1	-	1	-	-	1	1	-	1	-	-
Average number of days with fog over 7 years	days	1	-	1	-	-	-	-	-	-	-	-	-	-
Average morning relative humidity over 7 years	%	85	81	83	81	82	89	89	92	93	87	81	82	80
Average evening relative humidity over 7 years	%	66	63	63	61	61	68	72	74	73	66	60	63	63
Average wind speed over 28 years	mph	8.7	6.7	7.5	8.5	9.5	10.4	10.9	11.2	10.5	9.1	7.6	6.3	6.5
Heating degree days over 30 years	days	3005	431	297	313	275	260	198	187	156	116	123	237	412
Cooling degree days over 30 years	days	65	-	-	-	-	-	-	-	-	35	30	-	-
Average possibility of sunshine over 38 years	%	66	56	62	69	73	72	73	66	65	72	70	62	53
Average number of days below 45°F over 72 years	days	41	15	7	4	2	-	-	-	-	-	-	1	11
Average number of days above 75°F over 72 years	days	29	-	-	1	2	3	3	2	2	6	7	2	-

Check weather averages for nearby locations (some locations might offer more data):

Weather Averages San Francisco, CA