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Yuma, Arizona climate
BWh Hot desert
Yuma has a seasonal warm-temperate climate (Hot desert, Köppen BWh). The hottest month is August with an average daily high near 43°C, while the coldest is December averaging around 6°C at night. Precipitation totals about 81 mm a year and is strongly seasonal — December alone averages 19 mm while June barely receives 0 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsYuma climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 22 | 24 | 28 | 31 | 36 | 41 | 43 | 43 | 40 | 34 | 26 | 21 |
| Avg temp (°C) | 14 | 16 | 19 | 22 | 26 | 31 | 34 | 34 | 30 | 24 | 18 | 13 |
| Avg low (°C) | 7 | 8 | 11 | 13 | 17 | 21 | 24 | 25 | 21 | 15 | 10 | 6 |
| Precipitation (mm) | 10 | 8 | 9 | 3 | 2 | 0 | 8 | 6 | 3 | 6 | 6 | 19 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 22 | 24 | 28 | 31 | 36 | 41 |
| Avg temp (°C) | 14 | 16 | 19 | 22 | 26 | 31 |
| Avg low (°C) | 7 | 8 | 11 | 13 | 17 | 21 |
| Precipitation (mm) | 10 | 8 | 9 | 3 | 2 | 0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 43 | 43 | 40 | 34 | 26 | 21 |
| Avg temp (°C) | 34 | 34 | 30 | 24 | 18 | 13 |
| Avg low (°C) | 24 | 25 | 21 | 15 | 10 | 6 |
| Precipitation (mm) | 8 | 6 | 3 | 6 | 6 | 19 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 2 | 2 | 1 | 0.5 | 0.2 | 0.1 | 0.8 | 1 | 1.0 | 0.5 | 0.8 | 1 |
| Days with high ≥ 32°C (days) | — | 0.4 | 5 | 12 | 20 | 22 | 23 | 23 | 22 | 16 | 2 | — |
| Days with low ≤ 0°C (days) | 0.8 | 0.4 | — | — | — | — | — | — | — | — | 0.0 | 1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 2 | 2 | 1 | 0.5 | 0.2 | 0.1 |
| Days with high ≥ 32°C (days) | — | 0.4 | 5 | 12 | 20 | 22 |
| Days with low ≤ 0°C (days) | 0.8 | 0.4 | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 0.8 | 1 | 1.0 | 0.5 | 0.8 | 1 |
| Days with high ≥ 32°C (days) | 23 | 23 | 22 | 16 | 2 | — |
| Days with low ≤ 0°C (days) | — | — | — | — | 0.0 | 1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 42 | 43 | 38 | 32 | 28 | 25 | 35 | 34 | 29 | 30 | 35 | 40 |
| Clear days (≤ 30% cloud) | 14 | 13 | 15 | 18 | 21 | 23 | 17 | 18 | 21 | 21 | 17 | 15 |
| Partly cloudy days (30–70%) | 11 | 10 | 11 | 9 | 8 | 5 | 10 | 10 | 7 | 8 | 9 | 11 |
| Cloudy days (≥ 70%) | 7 | 6 | 5 | 3 | 2 | 2 | 4 | 3 | 2 | 3 | 4 | 6 |
| Relative humidity (%) | 47 | 46 | 41 | 35 | 32 | 29 | 36 | 41 | 38 | 35 | 36 | 45 |
| Wind speed (mph) | 4.8 | 4.9 | 5.0 | 5.7 | 5.7 | 5.7 | 6.2 | 5.9 | 4.9 | 4.7 | 4.7 | 4.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 42 | 43 | 38 | 32 | 28 | 25 |
| Clear days (≤ 30% cloud) | 14 | 13 | 15 | 18 | 21 | 23 |
| Partly cloudy days (30–70%) | 11 | 10 | 11 | 9 | 8 | 5 |
| Cloudy days (≥ 70%) | 7 | 6 | 5 | 3 | 2 | 2 |
| Relative humidity (%) | 47 | 46 | 41 | 35 | 32 | 29 |
| Wind speed (mph) | 4.8 | 4.9 | 5.0 | 5.7 | 5.7 | 5.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 35 | 34 | 29 | 30 | 35 | 40 |
| Clear days (≤ 30% cloud) | 17 | 18 | 21 | 21 | 17 | 15 |
| Partly cloudy days (30–70%) | 10 | 10 | 7 | 8 | 9 | 11 |
| Cloudy days (≥ 70%) | 4 | 3 | 2 | 3 | 4 | 6 |
| Relative humidity (%) | 36 | 41 | 38 | 35 | 36 | 45 |
| Wind speed (mph) | 6.2 | 5.9 | 4.9 | 4.7 | 4.7 | 4.7 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Yuma Quartermaster Depot (NOAA GHCN station USC00029656), inside the city.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.