May is one of the warmer months of the year in Yuma, with average highs near 34.9°C and lows around 16.7°C (mean 25.8°C). It is about average for rainfall, averaging 2 mm of rainfall and 29% relative humidity across the period.
May is one of the warmer months of the year in Yuma. Across 45 years of records, the warmest May in Yuma was 1997 — when the month averaged 29.6°C — while the coldest were 1995 and 1998 at 22.5°C. Typical May days reach 34.9°C with nights near 16.7°C. The long-term May temperature trend is broadly flat.
May is about average for rainfall in Yuma, averaging 2 mm of rainfall. The wettest May on record was 1994 with 15 mm, while the driest were 2021, 2022 and 2024, among others at 0 mm.
Relative humidity in Yuma during May averages 29%. The most humid May was 1998 at 38%, and the least humid was 1984 at 21%.
May receives about 8.1 kWh/m²/day of solar energy in Yuma. The sunniest Mays were 2010, 2011 and 2020, among others at 8.4 kWh/m²/day, and the cloudiest was 1991 at 7.4.
Average wind speed in Yuma during May is 2.8 m/s. The windiest May was 2011 at 3.6 m/s, while the calmest was 1992 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.0°C | 25.0°C | 26.7°C | 25.0°C | 26.4°C | +0.4°C |
| Avg High | 35.3°C | 34.0°C | 35.9°C | 33.9°C | 35.7°C | +0.4°C |
| Avg Low | 16.7°C | 16.0°C | 17.5°C | 16.1°C | 17.2°C | +0.5°C |
| Avg Rain | 1 mm | 3 mm | 1 mm | 2 mm | 1 mm | 0 mm |
May temperatures in Yuma have stayed relatively stable across the record.
May has ranged from a record low of 7.6°C (1999) to a record high of 46.4°C (1984).
Rainfall in May is about average for rainfall, averaging 2 mm, with a wettest year of 15 mm.
One of the best times to visit Yuma
May is one of the best times to visit Yuma. Expect days averaging 34.9°C and nights around 16.7°C (mean 25.8°C) — warmer than Yuma's yearly average — with low rainfall (2 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 35.2°C | 26.4°C | 17.5°C | 41.5°C | 12.4°C | 4 mm | 31% | 2.8 m/s | 7.8 |
| 2024 | 35.5°C | 26.0°C | 16.6°C | 40.5°C | 11.4°C | 0 mm | 29% | 2.8 m/s | 8.3 |
| 2023 | 34.5°C | 25.4°C | 16.4°C | 39.8°C | 11.0°C | 0 mm | 34% | 3 m/s | 8.2 |
| 2022 | 36.1°C | 26.6°C | 17.1°C | 42.0°C | 12.2°C | 0 mm | 25% | 2.9 m/s | 8.3 |
| 2021 | 35.6°C | 26.3°C | 16.9°C | 38.6°C | 11.4°C | 0 mm | 28% | 2.9 m/s | 8.3 |
| 2020 | 37.1°C | 27.9°C | 18.6°C | 43.0°C | 13.1°C | 0 mm | 28% | 2.9 m/s | 8.4 |
| 2019 | 31.4°C | 23.0°C | 14.7°C | 37.8°C | 11.0°C | 0 mm | 38% | 3.2 m/s | 7.8 |
| 2018 | 35.0°C | 25.8°C | 16.6°C | 40.8°C | 9.8°C | 0 mm | 31% | 3 m/s | 8.3 |
| 2017 | 35.1°C | 26.1°C | 17.2°C | 43.7°C | 11.5°C | 6 mm | 29% | 2.9 m/s | 8 |
| 2016 | 33.1°C | 24.5°C | 15.9°C | 39.4°C | 12.1°C | 5 mm | 35% | 2.8 m/s | 8.2 |
| 2015 | 31.5°C | 23.5°C | 15.6°C | 39.9°C | 10.3°C | 10 mm | 38% | 2.9 m/s | 7.9 |
| 2014 | 35.6°C | 26.7°C | 17.8°C | 41.5°C | 11.8°C | 0 mm | 24% | 3.2 m/s | 8.2 |
| 2013 | 35.4°C | 26.5°C | 17.6°C | 41.3°C | 13.2°C | 0 mm | 26% | 2.8 m/s | 8.1 |
| 2012 | 37.1°C | 27.2°C | 17.4°C | 44.5°C | 11.6°C | 0 mm | 23% | 2.5 m/s | 8.3 |
| 2011 | 32.6°C | 23.5°C | 14.4°C | 39.2°C | 10.1°C | 0 mm | 28% | 3.6 m/s | 8.4 |
| 2010 | 32.5°C | 23.4°C | 14.2°C | 37.5°C | 8.7°C | 0 mm | 29% | 3.1 m/s | 8.4 |
| 2009 | 37.6°C | 28.6°C | 19.6°C | 42.4°C | 15.7°C | 1 mm | 27% | 2.4 m/s | 7.9 |
| 2008 | 32.8°C | 24.1°C | 15.4°C | 44.2°C | 11.5°C | 5 mm | 28% | 3 m/s | 8.2 |
| 2007 | 35.3°C | 26.0°C | 16.8°C | 39.5°C | 12.2°C | 0 mm | 27% | 2.6 m/s | 8.2 |
| 2006 | 36.3°C | 27.1°C | 17.9°C | 41.0°C | 12.8°C | 1 mm | 25% | 2.4 m/s | 8.2 |
| 2005 | 35.5°C | 26.6°C | 17.6°C | 44.5°C | 11.9°C | 0 mm | 32% | 2.7 m/s | 8 |
| 2004 | 36.0°C | 26.7°C | 17.4°C | 41.0°C | 13.7°C | 0 mm | 25% | 2.9 m/s | 8.3 |
| 2003 | 35.1°C | 26.0°C | 16.9°C | 43.6°C | 9.0°C | 0 mm | 29% | 2.9 m/s | 7.9 |
| 2002 | 34.7°C | 25.2°C | 15.7°C | 43.2°C | 10.4°C | 0 mm | 26% | 2.7 m/s | 8.2 |
| 2001 | 38.5°C | 29.1°C | 19.7°C | 45.2°C | 13.5°C | 0 mm | 23% | 2.5 m/s | 8.2 |
| 2000 | 37.4°C | 27.8°C | 18.1°C | 44.3°C | 12.0°C | 0 mm | 25% | 2.8 m/s | 8.3 |
| 1999 | 33.7°C | 24.4°C | 15.0°C | 40.6°C | 7.6°C | 0 mm | 30% | 2.7 m/s | 7.9 |
| 1998 | 31.0°C | 22.5°C | 13.9°C | 36.7°C | 9.8°C | 1 mm | 38% | 3 m/s | 8 |
| 1997 🔥 | 38.6°C | 29.6°C | 20.5°C | 44.0°C | 15.9°C | 0 mm | 25% | 2.4 m/s | 7.8 |
| 1996 | 36.2°C | 26.6°C | 17.1°C | 43.4°C | 13.0°C | 0 mm | 27% | 2.9 m/s | 8 |
| 1995 ❄️ | 31.0°C | 22.5°C | 14.0°C | 40.1°C | 8.8°C | 0 mm | 37% | 3.1 m/s | 7.7 |
| 1994 🌧️ | 33.1°C | 24.4°C | 15.6°C | 41.1°C | 11.3°C | 15 mm | 33% | 2.4 m/s | 7.5 |
| 1993 | 34.7°C | 25.9°C | 17.0°C | 39.3°C | 11.4°C | 2 mm | 34% | 2.8 m/s | 7.9 |
| 1992 | 35.2°C | 26.7°C | 18.2°C | 38.4°C | 14.8°C | 10 mm | 36% | 2.3 m/s | 8.2 |
| 1991 | 32.9°C | 23.3°C | 13.8°C | 39.8°C | 8.7°C | 0 mm | 30% | 3.3 m/s | 7.4 |
| 1990 | 33.4°C | 24.2°C | 15.0°C | 37.3°C | 9.9°C | 2 mm | 30% | 3.3 m/s | 7.8 |
| 1989 | 35.6°C | 26.1°C | 16.6°C | 43.1°C | 11.8°C | 0 mm | 26% | 2.9 m/s | 8.2 |
| 1988 | 34.5°C | 25.1°C | 15.8°C | 43.0°C | 8.0°C | 0 mm | 26% | 3 m/s | 8 |
| 1987 | 33.8°C | 25.6°C | 17.4°C | 39.6°C | 11.1°C | 4 mm | 31% | 2.5 m/s | 7.8 |
| 1986 | 35.6°C | 26.0°C | 16.5°C | 41.4°C | 9.1°C | 0 mm | 24% | 2.7 m/s | 8.2 |
| 1985 | 35.6°C | 26.4°C | 17.2°C | 40.2°C | 10.5°C | 0 mm | 24% | 2.8 m/s | 8.3 |
| 1984 | 39.1°C | 29.2°C | 19.4°C | 46.4°C | 12.1°C | 1 mm | 21% | 2.4 m/s | 8.4 |
| 1983 | 35.3°C | 25.6°C | 15.9°C | 46.2°C | 8.5°C | 0 mm | 27% | 3.2 m/s | — |
| 1982 | 33.9°C | 24.7°C | 15.5°C | 39.1°C | 9.6°C | 2 mm | 30% | 2.9 m/s | — |
| 1981 | 34.0°C | 25.1°C | 16.1°C | 39.6°C | 10.9°C | 2 mm | 27% | 2.8 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 34.9°C with lows near 16.7°C (mean 25.8°C), based on 45 years of NASA POWER data.
May averages 2 mm of rainfall in Yuma, about average for rainfall. The wettest on record was 15 mm in 1994.
The hottest May reached 46.4°C in 1984. The coldest dipped to 7.6°C in 1999.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have fallen by about 0.1°C — but days and nights have moved in opposite directions. Overnight lows rose from 16.8°C to 16.9°C while daytime highs eased from 35.6°C to 35.4°C, narrowing the gap between day and night.
May is one of the warmer months of the year in Yuma and about average for rainfall, so plan for around 34.9°C daytime highs and 16.7°C at night.
Not quite — May is the 8th coolest month in Yuma, averaging 25.8°C.
For May in Yuma, pack light, breathable clothing and sun protection, with typical highs of 34.9°C and lows of 16.7°C.
Relative humidity in May averages 29% — relatively dry.
Average wind speed in May is 2.8 m/s. The windiest May on record averaged 3.6 m/s (2011).
The wettest May on record was 1994 with 15 mm. On average, May sees 2 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Yuma behaves each May, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for May specifically, along with year-by-year records and how the month has changed over the decades.
