Weather Averages for Alta Loma, CA

7-day Forecast / 10-day Forecast

Latitude: 34°3'N, Longitude: 117°36'W, Elevation: 287.0 ft, Distance: 6.01 mi Alta Loma, CA Averages »

	Unit	Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average temperature over 22 years	°F	66	55	57	57	62	66	73	78	78	75	69	60	55
Average high temperature over 22 years	°F	78	66	68	68	75	78	87	91	91	89	82	73	66
Average low temperature over 22 years	°F	53	43	44	46	50	55	59	62	64	62	55	46	42
Highest recorded temperature over 22 years	°F	114	89	89	96	109	107	111	114	113	111	109	95	98
Lowest recorded temperature over 22 years	°F	24	24	28	30	35	37	43	51	51	46	39	28	24
Average number of days above 90°F over 22 years	days	82	-	-	-	2	3	11	21	22	15	7	1	-
Average dew point over 21 years	°F	48	37	41	44	46	51	55	59	59	57	50	39	37
Average number of days above 70°F over 22 years	days	260	11	12	13	20	25	29	31	31	29	29	19	12
Average number of days with thunderstorms over 22 years	days	3	1	1	1	-	-	-	-	-	-	-	-	-
Average number of days with fog over 22 years	days	178	13	13	17	14	18	17	15	15	15	17	12	12
Average morning relative humidity over 21 years	%	77	77	78	83	78	80	77	76	76	74	74	72	74
Average evening relative humidity over 21 years	%	43	46	47	51	46	47	41	38	39	41	41	39	43
Average wind speed over 21 years	mph	9.0	6.0	9.0	10.0	10.0	10.0	11.0	10.0	11.0	10.0	10.0	6.0	6.0
Average number of days below 32°F over 22 years	days	4	2	-	-	-	-	-	-	-	-	-	-	1

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