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The driest places in North America in September

Bakersfield tops the list at 0.9 mm in September. Ranked from 1991–2020 climate normals across 50 destinations.

# Destination Country Rainfall Avg high Rainfall
1 Bakersfield United States 0.9 mm 33 °C 1 mm
2 San Francisco United States 1.7 mm 23 °C 2 mm
3 Salinas United States 1.8 mm 24 °C 2 mm
4 Fresno United States 1.8 mm 33 °C 2 mm
5 Modesto United States 1.9 mm 32 °C 2 mm
6 Oakland United States 1.9 mm 26 °C 2 mm
7 Fremont United States 2.2 mm 28 °C 2 mm
8 Sunnyvale United States 2.4 mm 27 °C 2 mm
9 Stockton United States 2.4 mm 31 °C 2 mm
10 San Jose United States 2.6 mm 28 °C 3 mm
11 Sacramento United States 2.8 mm 32 °C 3 mm
12 Lancaster United States 2.9 mm 32 °C 3 mm
13 Los Angeles United States 3.3 mm 31 °C 3 mm
14 Long Beach United States 3.3 mm 27 °C 3 mm
15 Santa Rosa United States 3.3 mm 29 °C 3 mm
16 Oxnard United States 3.4 mm 24 °C 3 mm
17 Anaheim United States 3.5 mm 29 °C 4 mm
18 Huntington Beach United States 3.6 mm 26 °C 4 mm
19 Oceanside United States 3.6 mm 25 °C 4 mm
20 Elk Grove United States 3.8 mm 31 °C 4 mm
21 Glendale United States 4.2 mm 31 °C 4 mm
22 Tijuana Mexico 4.3 mm 24 °C 4 mm
23 San Diego United States 4.4 mm 25 °C 4 mm
24 Santa Clarita United States 4.5 mm 32 °C 4 mm
25 Pomona United States 4.5 mm 31 °C 4 mm
26 Ontario United States 4.6 mm 32 °C 5 mm
27 Ensenada Mexico 4.7 mm 27 °C 5 mm
28 Escondido United States 4.9 mm 28 °C 5 mm
29 Riverside United States 5.1 mm 32 °C 5 mm
30 Windhoek Namibia 5.2 mm 28 °C 5 mm
31 Fontana United States 5.5 mm 32 °C 5 mm
32 Henderson United States 6.6 mm 35 °C 7 mm
33 San Bernardino United States 7.1 mm 32 °C 7 mm
34 Moreno Valley United States 7.2 mm 31 °C 7 mm
35 Las Vegas United States 7.4 mm 34 °C 7 mm
36 Spring Valley United States 8.0 mm 34 °C 8 mm
37 Mexicali Mexico 8.7 mm 39 °C 9 mm
38 Reno United States 9.6 mm 27 °C 10 mm
39 Palmdale United States 10 mm 31 °C 10 mm
40 Boise United States 11 mm 27 °C 11 mm
41 San Luis Río Colorado Mexico 12 mm 38 °C 12 mm
42 Spokane United States 19 mm 25 °C 19 mm
43 Honolulu United States 22 mm 28 °C 22 mm
44 Albuquerque United States 22 mm 28 °C 22 mm
45 Phoenix United States 25 mm 38 °C 25 mm
46 Mesa United States 27 mm 37 °C 27 mm
47 Aurora United States 28 mm 26 °C 28 mm
48 Tucson United States 29 mm 35 °C 29 mm
49 Ciudad Juárez Mexico 31 mm 31 °C 31 mm
50 Salem United States 33 mm 26 °C 33 mm

Only destinations with a published page for that month are ranked. The ranking is ours; the underlying values are reproduced from the source.

Data sources and method

Normal period
1991–2020
Dataset version
era5-1991-2020-scores1.1
Last processed

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: ranking order, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.