May is one of the warmer months of the year in Auburn, with average highs near 28.2°C and lows around 15.9°C (mean 22.1°C). It is about average for rainfall, averaging 100 mm of rainfall and 75% relative humidity across the period.
May is one of the warmer months of the year in Auburn. Across 45 years of records, the warmest May in Auburn was 2000 — when the month averaged 25.1°C — while the coldest was 1997 at 19.6°C. Typical May days reach 28.2°C with nights near 15.9°C. The long-term trend is warming, about 0.4°C per decade.
May is about average for rainfall in Auburn, averaging 100 mm of rainfall. The wettest May on record was 2009 with 219 mm, while the driest was 2007 at 9 mm.
Relative humidity in Auburn during May averages 75%. The most humid May was 2009 at 86%, and the least humid was 2007 at 54%.
May receives about 6.2 kWh/m²/day of solar energy in Auburn. The sunniest Mays were 2011 and 2019 at 6.9 kWh/m²/day, and the cloudiest was 2009 at 4.9.
Average wind speed in Auburn during May is 0.4 m/s. The windiest Mays were 2009, 2011 and 2021, among others at 0.5 m/s, while the calmest were 2023, 2024 and 2025, among others at 0.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.2°C | 21.6°C | 22.6°C | 22.5°C | 22.3°C | +1.1°C |
| Avg High | 27.6°C | 27.6°C | 29.0°C | 28.6°C | 28.3°C | +0.7°C |
| Avg Low | 14.8°C | 15.7°C | 16.2°C | 16.4°C | 16.4°C | +1.6°C |
| Avg Rain | 93 mm | 91 mm | 94 mm | 110 mm | 117 mm | +24 mm |
May temperatures in Auburn have risen by about 1.7°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 5.5°C (2013) to a record high of 38.2°C (2011).
Rainfall in May is about average for rainfall, averaging 100 mm, with a wettest year of 219 mm.
One of the best times to visit Auburn
May is one of the best times to visit Auburn. Expect days averaging 28.2°C and nights around 15.9°C (mean 22.1°C) — warmer than Auburn's yearly average — with higher rainfall (100 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 | 28.1°C | 22.7°C | 17.4°C | 33.1°C | 9.7°C | 197 mm | 79% | 0.4 m/s | 5.6 |
| 2024 | 28.7°C | 23.4°C | 18.2°C | 31.6°C | 13.1°C | 183 mm | 81% | 0.4 m/s | 5.8 |
| 2023 | 26.8°C | 21.1°C | 15.5°C | 33.1°C | 7.0°C | 114 mm | 79% | 0.4 m/s | 5.8 |
| 2022 | 30.7°C | 23.9°C | 17.2°C | 36.6°C | 10.9°C | 84 mm | 70% | 0.4 m/s | 6.3 |
| 2021 | 28.9°C | 22.1°C | 15.3°C | 36.6°C | 9.1°C | 78 mm | 68% | 0.5 m/s | 6.7 |
| 2020 | 26.4°C | 20.5°C | 14.6°C | 31.1°C | 5.9°C | 48 mm | 78% | 0.4 m/s | 6.6 |
| 2019 | 30.3°C | 24.1°C | 17.8°C | 36.1°C | 9.9°C | 93 mm | 75% | 0.4 m/s | 6.9 |
| 2018 | 30.3°C | 24.2°C | 18.0°C | 36.6°C | 10.6°C | 195 mm | 74% | 0.4 m/s | 5.9 |
| 2017 | 27.9°C | 21.8°C | 15.8°C | 33.6°C | 7.0°C | 155 mm | 75% | 0.4 m/s | 6.2 |
| 2016 | 27.0°C | 21.2°C | 15.4°C | 33.6°C | 6.5°C | 51 mm | 78% | 0.4 m/s | 6.6 |
| 2015 | 28.8°C | 22.9°C | 17.0°C | 31.8°C | 8.3°C | 99 mm | 76% | 0.4 m/s | 6.5 |
| 2014 | 26.7°C | 21.3°C | 15.9°C | 31.6°C | 7.9°C | 101 mm | 82% | 0.4 m/s | 6.4 |
| 2013 | 25.7°C | 20.0°C | 14.3°C | 30.6°C | 5.5°C | 74 mm | 80% | 0.4 m/s | 6.1 |
| 2012 | 30.0°C | 23.6°C | 17.2°C | 36.4°C | 11.3°C | 123 mm | 72% | 0.4 m/s | 6.4 |
| 2011 | 30.6°C | 22.7°C | 14.8°C | 38.2°C | 6.5°C | 44 mm | 63% | 0.5 m/s | 6.9 |
| 2010 | 28.7°C | 23.2°C | 17.7°C | 33.0°C | 9.6°C | 168 mm | 80% | 0.4 m/s | 6.1 |
| 2009 🌧️ | 25.9°C | 21.6°C | 17.3°C | 31.0°C | 8.0°C | 219 mm | 86% | 0.5 m/s | 4.9 |
| 2008 | 28.5°C | 22.0°C | 15.6°C | 34.6°C | 9.4°C | 89 mm | 74% | 0.4 m/s | 6.3 |
| 2007 | 31.4°C | 23.7°C | 16.0°C | 34.6°C | 9.6°C | 9 mm | 54% | 0.5 m/s | 6.8 |
| 2006 | 29.1°C | 22.4°C | 15.8°C | 37.0°C | 8.6°C | 94 mm | 70% | 0.4 m/s | 6.4 |
| 2005 | 26.6°C | 20.4°C | 14.2°C | 31.5°C | 6.8°C | 78 mm | 77% | 0.4 m/s | 6.6 |
| 2004 | 31.0°C | 24.2°C | 17.4°C | 34.9°C | 6.0°C | 95 mm | 68% | 0.4 m/s | 6.3 |
| 2003 | 27.4°C | 22.3°C | 17.2°C | 30.6°C | 10.8°C | 176 mm | 84% | 0.4 m/s | 5.3 |
| 2002 | 30.7°C | 23.2°C | 15.6°C | 34.8°C | 7.2°C | 70 mm | 63% | 0.5 m/s | 6.4 |
| 2001 | 26.9°C | 21.0°C | 15.0°C | 30.3°C | 9.2°C | 83 mm | 77% | 0.4 m/s | 6.4 |
| 2000 🔥 | 32.7°C | 25.1°C | 17.4°C | 36.7°C | 10.3°C | 29 mm | 59% | 0.5 m/s | 6.5 |
| 1999 | 29.1°C | 22.0°C | 15.0°C | 32.3°C | 7.7°C | 105 mm | 68% | 0.4 m/s | 6.1 |
| 1998 | 29.6°C | 23.6°C | 17.6°C | 33.9°C | 10.8°C | 55 mm | 76% | 0.4 m/s | 6.6 |
| 1997 ❄️ | 25.1°C | 19.6°C | 14.2°C | 29.9°C | 6.1°C | 117 mm | 80% | 0.4 m/s | 5.8 |
| 1996 | 28.6°C | 22.6°C | 16.7°C | 33.6°C | 5.6°C | 89 mm | 78% | 0.4 m/s | 6.7 |
| 1995 | 29.5°C | 23.2°C | 17.0°C | 34.4°C | 8.3°C | 56 mm | 73% | 0.4 m/s | 6.1 |
| 1994 | 26.6°C | 20.5°C | 14.4°C | 30.4°C | 9.5°C | 61 mm | 77% | 0.4 m/s | 6.6 |
| 1993 | 26.2°C | 20.6°C | 15.0°C | 30.8°C | 7.7°C | 70 mm | 79% | 0.4 m/s | 5.8 |
| 1992 | 26.9°C | 20.4°C | 14.0°C | 31.8°C | 7.6°C | 50 mm | 73% | 0.4 m/s | 6 |
| 1991 | 27.6°C | 23.2°C | 18.8°C | 32.5°C | 10.8°C | 196 mm | 86% | 0.4 m/s | 5 |
| 1990 | 26.5°C | 20.5°C | 14.6°C | 30.6°C | 7.8°C | 111 mm | 79% | 0.4 m/s | 5.8 |
| 1989 | 26.6°C | 20.4°C | 14.3°C | 34.8°C | 7.0°C | 82 mm | 77% | 0.5 m/s | 5.8 |
| 1988 | 28.4°C | 20.8°C | 13.2°C | 34.4°C | 8.0°C | 46 mm | 64% | 0.4 m/s | 6.4 |
| 1987 | 27.8°C | 22.5°C | 17.3°C | 31.7°C | 13.1°C | 109 mm | 82% | 0.4 m/s | 5.7 |
| 1986 | 29.7°C | 22.6°C | 15.5°C | 35.0°C | 7.9°C | 101 mm | 65% | 0.4 m/s | 5.7 |
| 1985 | 28.6°C | 22.1°C | 15.5°C | 36.1°C | 8.8°C | 98 mm | 70% | 0.5 m/s | 6 |
| 1984 | 26.4°C | 20.2°C | 14.0°C | 30.9°C | 6.9°C | 130 mm | 80% | 0.4 m/s | 5.6 |
| 1983 | 25.8°C | 19.9°C | 14.1°C | 29.3°C | 7.5°C | 92 mm | 81% | 0.5 m/s | — |
| 1982 | 27.8°C | 22.0°C | 16.2°C | 31.9°C | 8.8°C | 86 mm | 76% | 0.4 m/s | — |
| 1981 | 27.5°C | 20.3°C | 13.2°C | 33.9°C | 6.1°C | 94 mm | 67% | 0.5 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 28.2°C with lows near 15.9°C (mean 22.1°C), based on 45 years of NASA POWER data.
May averages 100 mm of rainfall in Auburn, about average for rainfall. The wettest on record was 219 mm in 2009.
The hottest May reached 38.2°C in 2011. The coldest dipped to 5.5°C in 2013.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1.7°C. Daytime highs moved from 27.2°C to 28.6°C and overnight lows from 14.6°C to 16.7°C over the same span.
May is one of the warmer months of the year in Auburn and about average for rainfall, so plan for around 28.2°C daytime highs and 15.9°C at night.
Not quite — May is the 8th coolest month in Auburn, averaging 22.1°C.
For May in Auburn, pack light layers you can adjust through the day, with typical highs of 28.2°C and lows of 15.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 75% — moderately humid.
Average wind speed in May is 0.4 m/s. The windiest May on record averaged 0.5 m/s (1981).
The wettest May on record was 2009 with 219 mm. On average, May sees 100 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 Auburn 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.
