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The driest places in North America in May: ranked by rainfall

Los Mochis tops the list at 0.3 mm in May. Ranked from 1991–2020 climate normals across 50 destinations in North America.

Top three in May: Los Mochis (0.3 mm) , Cabo San Lucas (0.4 mm) , Hermosillo (0.4 mm) . Between first and 50th place the rainfall differs by 16 mm.

# Destination Country Rainfall Avg high Avg low Rainfall Wet days Sunshine Sea temp
1 Los Mochis Mexico 0.3 mm 34 °C 19 °C 0 mm 0 394 h 25 °C
2 Cabo San Lucas Mexico 0.4 mm 28 °C 21 °C 0 mm 0 393 h 22 °C
3 Hermosillo Mexico 0.4 mm 35 °C 18 °C 0 mm 0 401 h –
4 La Paz Mexico 0.5 mm 32 °C 19 °C 1 mm 0 395 h 23 °C
5 Ciudad Obregón Mexico 0.7 mm 36 °C 19 °C 1 mm 0 399 h –
6 San Luis Río Colorado Mexico 0.8 mm 35 °C 19 °C 1 mm 0 404 h –
7 Mexicali Mexico 0.8 mm 36 °C 19 °C 1 mm 0 406 h –
8 Mazatlán Mexico 1.0 mm 30 °C 21 °C 1 mm 0 385 h 26 °C
9 Culiacán Mexico 1.2 mm 36 °C 20 °C 1 mm 0 391 h –
10 Tucson United States 2.8 mm 33 °C 17 °C 3 mm 1 404 h –
11 Henderson United States 3.2 mm 32 °C 18 °C 3 mm 1 407 h –
12 Lancaster United States 3.6 mm 27 °C 12 °C 4 mm 1 415 h –
13 Windhoek Namibia 3.6 mm 23 °C 10 °C 4 mm 1 328 h –
14 Nogales Mexico 3.8 mm 30 °C 13 °C 4 mm 1 403 h –
15 Spring Valley United States 4.0 mm 31 °C 16 °C 4 mm 1 409 h –
16 Phoenix United States 4.1 mm 35 °C 19 °C 4 mm 1 402 h –
17 Mesa United States 4.3 mm 35 °C 18 °C 4 mm 1 403 h –
18 Las Vegas United States 4.9 mm 31 °C 17 °C 5 mm 1 408 h –
19 Manzanillo Mexico 6.0 mm 30 °C 23 °C 6 mm 1 371 h 27 °C
20 Long Beach United States 6.6 mm 22 °C 14 °C 7 mm 1 403 h 17 °C
21 Ensenada Mexico 7.1 mm 22 °C 14 °C 7 mm 2 401 h 17 °C
22 Anaheim United States 7.4 mm 23 °C 13 °C 7 mm 1 398 h 17 °C
23 Ciudad Juárez Mexico 7.8 mm 32 °C 16 °C 8 mm 2 411 h –
24 Huntington Beach United States 7.9 mm 21 °C 14 °C 8 mm 1 398 h 17 °C
25 Torreón Mexico 8.5 mm 35 °C 21 °C 8 mm 2 389 h –
26 Los Angeles United States 8.5 mm 25 °C 13 °C 8 mm 1 399 h 17 °C
27 Oxnard United States 9.1 mm 20 °C 13 °C 9 mm 1 413 h 16 °C
28 Bakersfield United States 9.9 mm 29 °C 15 °C 10 mm 2 414 h –
29 San Diego United States 10 mm 20 °C 14 °C 10 mm 2 389 h 17 °C
30 Santa Clarita United States 10 mm 26 °C 13 °C 10 mm 2 409 h –
31 Palmdale United States 11 mm 26 °C 12 °C 11 mm 3 415 h –
32 Tijuana Mexico 11 mm 20 °C 14 °C 11 mm 2 390 h 17 °C
33 Cuauhtémoc Mexico 11 mm 27 °C 11 °C 11 mm 2 400 h –
34 Pomona United States 12 mm 25 °C 12 °C 12 mm 2 393 h –
35 Glendale United States 12 mm 25 °C 12 °C 12 mm 2 407 h –
36 Ontario United States 12 mm 25 °C 13 °C 12 mm 2 394 h –
37 Ciudad Lázaro Cárdenas Mexico 12 mm 31 °C 23 °C 12 mm 2 376 h 28 °C
38 Zapopan Mexico 13 mm 32 °C 17 °C 13 mm 3 377 h –
39 Chihuahua Mexico 13 mm 32 °C 16 °C 13 mm 3 402 h –
40 San Bernardino United States 13 mm 26 °C 12 °C 13 mm 3 402 h –
41 Oceanside United States 13 mm 20 °C 14 °C 13 mm 2 398 h 18 °C
42 Albuquerque United States 13 mm 27 °C 12 °C 13 mm 3 409 h –
43 Tepic Mexico 13 mm 31 °C 17 °C 13 mm 2 377 h –
44 Victoria de Durango Mexico 13 mm 30 °C 12 °C 13 mm 3 387 h –
45 Riverside United States 14 mm 26 °C 13 °C 14 mm 3 399 h –
46 Moreno Valley United States 14 mm 25 °C 12 °C 14 mm 3 401 h –
47 Tonalá Mexico 15 mm 31 °C 17 °C 15 mm 4 377 h –
48 Fontana United States 15 mm 26 °C 12 °C 15 mm 3 401 h –
49 Escondido United States 16 mm 22 °C 13 °C 16 mm 3 393 h 18 °C
50 Puerto Vallarta Mexico 16 mm 32 °C 21 °C 16 mm 3 370 h 26 °C

Monthly values for the month named in the ranking; only destinations with a published climate page are ranked. Download this ranking as CSV.

The same ranking one month earlier and later

April: top 5

  1. La Paz 0.3 mm
  2. Cabo San Lucas 0.4 mm
  3. Ciudad Lázaro Cárdenas 0.5 mm
  4. Manzanillo 0.5 mm
  5. Mazatlán 0.6 mm

Full ranking for April

June: top 5

  1. Mexicali 0.2 mm
  2. Windhoek 0.4 mm
  3. San Luis Río Colorado 0.6 mm
  4. Ensenada 1.0 mm
  5. Lancaster 1.2 mm

Full ranking for June

How this ranking is built

What is ranked
Total precipitation, in mm, in May, lowest first.
Period
1991–2020 climate normals: the same 30 years for every destination, so the list compares like with like.
Who is included
50 destinations in North America with a published climate page. Neighbouring places that share a climate series are shown once.
Ties
Equal values are ordered by fewest wet days.
Sources
ERA5 / ERA5-Land reanalysis via Open-Meteo; sea temperature from NOAA OISST v2.1. Measured values are reproduced unchanged; only the ordering is ours.

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.