Fresno CA Average Temperatures by Month

The numbers here tell you how hot and cold the weather usually is in Fresno, California during each month of the year.

The average high and low temperatures are listed below for the city, in both degrees Fahrenheit and Celsius.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 80, 90 or 100 °F monthly and annually in Fresno, scroll down farther. There are also counts of nights with cool temperatures.

The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.

10-year temperature averages for Fresno, 2010 to 2019
High °F	Low °F		High °C	Low °C
59	41	January	15	5
63	43	February	17	6
70	47	March	21	9
76	52	April	25	11
83	57	May	28	14
94	65	June	35	18
100	70	July	38	21
99	68	August	37	20
93	64	September	34	18
81	55	October	27	13
67	46	November	20	8
58	40	December	14	4
79	54	Year	26	12

30-year temperature averages for Fresno, 1991 to 2020
High °F	Low °F		High °C	Low °C
55	41	January	13	5
61	43	February	16	6
68	47	March	20	9
74	51	April	23	11
83	58	May	28	14
91	64	June	33	18
98	69	July	37	21
97	68	August	36	20
91	63	September	33	17
79	55	October	26	13
65	45	November	18	7
55	40	December	13	4
76	54	Year	25	12

Days of Hot Weather in Fresno

Fresno summers are hot, when all but a few days have highs over 90 and many top 100 Fahrenheit. The 90-degree weather usually begins in April and can linger into October. From May to September, the San Joaquin Valley city averages 38 days with temperatures of 100 °F or more.

Days per month in Fresno of at least 80, 90 or 100 °F
	80 °F 27 °C	90 °F 32 °C	100 °F 38 °C
January	0	0	0
February	0	0	0
March	3	0	0
April	9	2	0
May	22	9	1
June	28	20	7
July	31	30	14
August	31	29	12
September	28	20	4
October	17	4	0
November	1	0	0
December	0	0	0
Year	170	113	38

How Often Fresno Has Cool Temperatures

Most nights at Fresno never get colder than 40 °F. From November to February, the area averages 11 nights with frost, but even then it always warms up to at least 40 degrees the next day. It's not normal for Fresno to get as cold as 20 °F (-8 °C).

Days per month on average in Fresno when the minimum temperature drops to at least 40 or 32 °F
	32 °F 0 °C	40 °F 4 °C
January	4	17
February	1	11
March	0	5
April	0	1
May	0	0
June	0	0
July	0	0
August	0	0
September	0	0
October	0	0
November	1	8
December	5	19
Year	11	61

Fresno Temperatures: Averages by Month

Days of Hot Weather in Fresno

How Often Fresno Has Cool Temperatures

References

More on Weather in California