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The warmest places in North America in August

Mexicali tops the list at 42 °C in August. Ranked from 1991–2020 climate normals across 50 destinations.

# Destination Country Avg high Avg high Rainfall
1 Mexicali Mexico 42 °C 42 °C 9 mm
2 San Luis Río Colorado Mexico 41 °C 41 °C 10 mm
3 Phoenix United States 40 °C 40 °C 28 mm
4 Mesa United States 40 °C 40 °C 25 mm
5 Henderson United States 39 °C 39 °C 10 mm
6 Las Vegas United States 38 °C 38 °C 9 mm
7 Spring Valley United States 38 °C 38 °C 11 mm
8 Hermosillo Mexico 38 °C 38 °C 53 mm
9 Nuevo Laredo Mexico 37 °C 37 °C 35 mm
10 Piedras Negras Mexico 37 °C 37 °C 47 mm
11 Ciudad Obregón Mexico 37 °C 37 °C 88 mm
12 Fresno United States 36 °C 36 °C 0 mm
13 Tucson United States 36 °C 36 °C 34 mm
14 Ciudad Acuña Mexico 36 °C 36 °C 40 mm
15 Reynosa Mexico 36 °C 36 °C 38 mm
16 Bakersfield United States 36 °C 36 °C 0 mm
17 Austin United States 35 °C 35 °C 58 mm
18 San Antonio United States 35 °C 35 °C 50 mm
19 Lancaster United States 35 °C 35 °C 1 mm
20 Modesto United States 35 °C 35 °C 1 mm
21 Fort Worth United States 35 °C 35 °C 55 mm
22 Dallas United States 35 °C 35 °C 59 mm
23 La Paz Mexico 35 °C 35 °C 52 mm
24 Arlington United States 35 °C 35 °C 54 mm
25 Los Mochis Mexico 35 °C 35 °C 94 mm
26 Palmdale United States 34 °C 34 °C 10 mm
27 Ciudad Juárez Mexico 34 °C 34 °C 25 mm
28 San Bernardino United States 34 °C 34 °C 8 mm
29 Riverside United States 34 °C 34 °C 1 mm
30 Sacramento United States 34 °C 34 °C 1 mm
31 Mérida Mexico 34 °C 34 °C 94 mm
32 Shreveport United States 34 °C 34 °C 72 mm
33 Dessalines Haiti 34 °C 34 °C 118 mm
34 Plano United States 34 °C 34 °C 57 mm
35 Monclova Mexico 34 °C 34 °C 44 mm
36 Cypress United States 34 °C 34 °C 88 mm
37 Ciudad Apodaca Mexico 34 °C 34 °C 32 mm
38 Fontana United States 34 °C 34 °C 1 mm
39 Bayamo Cuba 34 °C 34 °C 132 mm
40 Guantánamo Cuba 34 °C 34 °C 97 mm
41 Oklahoma City United States 34 °C 34 °C 65 mm
42 Port-au-Prince Haiti 34 °C 34 °C 175 mm
43 Ciudad Victoria Mexico 34 °C 34 °C 77 mm
44 Ciudad Benito Juárez Mexico 33 °C 33 °C 48 mm
45 Corona United States 33 °C 33 °C 1 mm
46 Houston United States 33 °C 33 °C 104 mm
47 Campeche Mexico 33 °C 33 °C 129 mm
48 Torreón Mexico 33 °C 33 °C 31 mm
49 Moreno Valley United States 33 °C 33 °C 8 mm
50 Tulsa United States 33 °C 33 °C 70 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.