Average Rainfall for Arizona in August

The tables below give monthly averages for rainfall during August at cities, towns and parks in Arizona.

Each place has a total for the amount of precipitation it usually receives this month.

There is also a count of the number of days with wet weather, when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The rainfall totals are averages based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information.

Southern Arizona

Average monthly precipitation in August
Days	Place	Inches	Millimetres
13	Bisbee	4.3	108
13	Chiricahua National Monument	4.6	116
14	Coronado National Monument	4.8	121
12	Douglas	2.9	74
10	Green Valley	2.7	68
14	Nogales	3.9	99
6	Organ Pipe Cactus Monument	1.8	46
11	Sierra Vista	3.3	84
11	Tombstone	3.1	78
9	Tucson	2.0	50

August averages for total rainfall
Days	Place	Inches	Millimetres
1	Bullhead City	0.5	12
5	Kingman	0.9	22
2	Lake Havasu City	0.4	10
1	Parker	0.4	11
1	Yuma	0.2	5

Average amount of rain in August
Days	Place	Inches	Millimetres
6	Apache Junction	1.5	38
5	Mesa	1.1	29
5	Phoenix	0.9	24
4	Scottsdale	0.8	21
3	South Phoenix	0.8	19
5	Tempe	1.3	33

Rainfall totals for August
Days	Place	Inches	Millimetres
5	Casa Grande	1.5	39
10	Globe	2.1	53
16	Greer	4.8	122
11	Jerome	3.0	77
9	Painted Desert National Park	1.7	44
11	Payson	2.6	66
9	Petrified Forest National Park	1.6	40
10	Prescott	2.8	71
9	Sedona	2.0	52
15	Show Low	3.0	75
5	Stewart Mountain	1.4	35
5	Wickenburg	2.0	50

Total precipitation during August
Days	Place	Inches	Millimetres
7	Canyon de Chelly	1.3	33
13	Flagstaff	3.0	77
10	Grand Canyon Village	2.2	56
7	Page	0.9	24
7	Pipe Springs Monument	1.3	33
13	Williams	3.4	86