May is one of the warmer months of the year in Visalia, with average highs near 28.3°C and lows around 13.4°C (mean 20.9°C). It is one of the drier months, averaging 17 mm of rainfall and 47% relative humidity across the period.
May is one of the warmer months of the year in Visalia. Across 45 years of records, the warmest May in Visalia was 2001 — when the month averaged 25.3°C — while the coldest was 1998 at 15°C. Typical May days reach 28.3°C with nights near 13.4°C. The long-term trend is warming, about 0.3°C per decade.
May is one of the drier months in Visalia, averaging 17 mm of rainfall. The wettest May on record was 2019 with 74 mm, while the driest was 2022 at 0 mm.
Relative humidity in Visalia during May averages 47%. The most humid May was 1998 at 69%, and the least humid was 2021 at 30%.
May receives about 7.5 kWh/m²/day of solar energy in Visalia. The sunniest Mays were 2012 and 2021 at 8.3 kWh/m²/day, and the cloudiest was 1998 at 6.5.
Average wind speed in Visalia during May is 1.8 m/s. The windiest Mays were 1984 and 2013 at 2.1 m/s, while the calmest were 2005, 2006 and 2023 at 1.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 20.6°C | 19.9°C | 21.9°C | 20.3°C | 21.8°C | +1.2°C |
| Avg High | 28.2°C | 27.1°C | 29.6°C | 27.6°C | 29.4°C | +1.2°C |
| Avg Low | 13.0°C | 12.8°C | 14.2°C | 13.1°C | 14.1°C | +1.1°C |
| Avg Rain | 9 mm | 22 mm | 21 mm | 18 mm | 8 mm | -2 mm |
May temperatures in Visalia have risen by about 1.3°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 4.6°C (2003) to a record high of 43°C (2001).
Rainfall in May is one of the drier months, averaging 17 mm, with a wettest year of 74 mm.
One of the best times to visit Visalia
May is one of the best times to visit Visalia. Expect days averaging 28.3°C and nights around 13.4°C (mean 20.9°C) — warmer than Visalia's yearly average — with low rainfall (17 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 | 30.0°C | 22.4°C | 14.8°C | 40.8°C | 10.0°C | 2 mm | 45% | 1.7 m/s | 7.8 |
| 2024 | 29.0°C | 21.3°C | 13.6°C | 36.0°C | 5.8°C | 13 mm | 48% | 1.7 m/s | 8 |
| 2023 | 26.3°C | 19.9°C | 13.4°C | 34.4°C | 7.5°C | 13 mm | 62% | 1.5 m/s | 7.4 |
| 2022 | 29.6°C | 21.8°C | 13.9°C | 40.0°C | 5.4°C | 0 mm | 34% | 2 m/s | 8.2 |
| 2021 | 31.6°C | 23.2°C | 14.7°C | 40.4°C | 8.5°C | 1 mm | 30% | 2 m/s | 8.3 |
| 2020 | 29.9°C | 22.2°C | 14.4°C | 39.8°C | 9.6°C | 17 mm | 45% | 1.8 m/s | 7.9 |
| 2019 🌧️ | 24.2°C | 18.1°C | 12.1°C | 30.6°C | 7.0°C | 74 mm | 61% | 1.7 m/s | 6.7 |
| 2018 | 27.9°C | 20.9°C | 13.9°C | 37.2°C | 8.4°C | 3 mm | 51% | 1.7 m/s | 7.6 |
| 2017 | 28.1°C | 21.1°C | 14.1°C | 37.4°C | 6.9°C | 7 mm | 54% | 1.7 m/s | 7.4 |
| 2016 | 28.1°C | 21.0°C | 13.9°C | 37.4°C | 8.4°C | 15 mm | 51% | 1.7 m/s | 7.5 |
| 2015 | 27.7°C | 20.4°C | 13.2°C | 38.3°C | 8.1°C | 21 mm | 43% | 1.7 m/s | 7.3 |
| 2014 | 31.0°C | 22.9°C | 14.8°C | 38.8°C | 8.4°C | 9 mm | 33% | 1.9 m/s | 7.9 |
| 2013 | 30.6°C | 22.6°C | 14.6°C | 38.4°C | 8.9°C | 9 mm | 33% | 2.1 m/s | 7.8 |
| 2012 | 30.1°C | 21.8°C | 13.5°C | 38.6°C | 8.9°C | 1 mm | 40% | 1.8 m/s | 8.3 |
| 2011 | 24.0°C | 17.2°C | 10.5°C | 33.4°C | 5.9°C | 31 mm | 56% | 1.8 m/s | 7.5 |
| 2010 | 24.2°C | 17.3°C | 10.4°C | 33.1°C | 6.1°C | 10 mm | 54% | 1.9 m/s | 7.6 |
| 2009 | 32.2°C | 24.0°C | 15.9°C | 41.2°C | 12.1°C | 21 mm | 42% | 1.8 m/s | 7.7 |
| 2008 | 28.8°C | 21.1°C | 13.3°C | 40.2°C | 7.9°C | 12 mm | 40% | 1.9 m/s | 7.6 |
| 2007 | 30.7°C | 22.3°C | 13.8°C | 35.8°C | 7.4°C | 4 mm | 34% | 1.9 m/s | 8.1 |
| 2006 | 27.8°C | 21.2°C | 14.5°C | 35.3°C | 8.8°C | 25 mm | 58% | 1.5 m/s | 7.6 |
| 2005 | 26.3°C | 19.8°C | 13.3°C | 34.7°C | 6.6°C | 69 mm | 60% | 1.5 m/s | 7.4 |
| 2004 | 30.2°C | 22.1°C | 14.0°C | 37.0°C | 10.3°C | 12 mm | 36% | 1.9 m/s | 8.1 |
| 2003 | 27.7°C | 20.4°C | 13.2°C | 40.9°C | 4.6°C | 37 mm | 51% | 1.7 m/s | 7.3 |
| 2002 | 28.9°C | 20.9°C | 12.9°C | 39.5°C | 7.9°C | 16 mm | 42% | 1.8 m/s | 8.1 |
| 2001 🔥 | 33.8°C | 25.3°C | 16.7°C | 43.0°C | 10.4°C | 3 mm | 37% | 1.8 m/s | 8.1 |
| 2000 | 29.2°C | 21.5°C | 13.9°C | 39.6°C | 5.9°C | 16 mm | 46% | 1.8 m/s | 7.6 |
| 1999 | 27.2°C | 19.3°C | 11.3°C | 35.2°C | 6.1°C | 7 mm | 48% | 1.9 m/s | 7.9 |
| 1998 ❄️ | 20.4°C | 15.0°C | 9.7°C | 27.8°C | 4.9°C | 59 mm | 69% | 1.6 m/s | 6.5 |
| 1997 | 33.0°C | 25.1°C | 17.2°C | 38.7°C | 11.1°C | 3 mm | 37% | 2 m/s | 8.1 |
| 1996 | 28.5°C | 20.9°C | 13.4°C | 36.4°C | 9.0°C | 20 mm | 47% | 1.9 m/s | 7.4 |
| 1995 | 22.7°C | 17.0°C | 11.4°C | 32.7°C | 7.1°C | 50 mm | 68% | 1.6 m/s | 6.6 |
| 1994 | 26.8°C | 19.8°C | 12.8°C | 36.7°C | 8.4°C | 28 mm | 51% | 1.6 m/s | 6.7 |
| 1993 | 28.0°C | 20.6°C | 13.3°C | 36.0°C | 7.9°C | 8 mm | 51% | 1.8 m/s | 7.3 |
| 1992 | 32.1°C | 24.2°C | 16.4°C | 37.7°C | 12.3°C | 3 mm | 42% | 1.8 m/s | 7.4 |
| 1991 | 25.1°C | 17.6°C | 10.1°C | 33.2°C | 4.8°C | 8 mm | 51% | 1.8 m/s | 7.2 |
| 1990 | 27.5°C | 19.8°C | 12.2°C | 36.1°C | 8.6°C | 35 mm | 40% | 1.8 m/s | 7.1 |
| 1989 | 27.7°C | 20.2°C | 12.8°C | 34.9°C | 8.2°C | 23 mm | 44% | 1.9 m/s | 7.2 |
| 1988 | 27.6°C | 19.9°C | 12.2°C | 36.8°C | 5.1°C | 15 mm | 41% | 1.9 m/s | 6.8 |
| 1987 | 30.3°C | 22.7°C | 15.0°C | 38.4°C | 8.5°C | 15 mm | 40% | 1.9 m/s | 7.1 |
| 1986 | 27.9°C | 20.2°C | 12.5°C | 35.4°C | 4.9°C | 3 mm | 48% | 1.7 m/s | 7.4 |
| 1985 | 28.1°C | 20.1°C | 12.1°C | 33.5°C | 7.3°C | 1 mm | 37% | 1.7 m/s | 7.4 |
| 1984 | 31.9°C | 23.5°C | 15.0°C | 42.0°C | 8.1°C | 1 mm | 35% | 2.1 m/s | 7.3 |
| 1983 | 25.4°C | 18.5°C | 11.7°C | 36.3°C | 4.8°C | 6 mm | 61% | 1.6 m/s | — |
| 1982 | 27.2°C | 20.0°C | 12.8°C | 36.6°C | 6.6°C | 4 mm | 54% | 1.6 m/s | — |
| 1981 | 27.8°C | 20.1°C | 12.5°C | 34.4°C | 7.7°C | 16 mm | 46% | 1.8 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 28.3°C with lows near 13.4°C (mean 20.9°C), based on 45 years of NASA POWER data.
May averages 17 mm of rainfall in Visalia, one of the drier months. The wettest on record was 74 mm in 2019.
The hottest May reached 43°C in 2001. The coldest dipped to 4.6°C in 2003.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1.3°C. Daytime highs moved from 28.1°C to 29.3°C and overnight lows from 12.8°C to 14.1°C over the same span.
May is one of the warmer months of the year in Visalia and one of the drier months, so plan for around 28.3°C daytime highs and 13.4°C at night.
Not quite — May is the 8th coolest month in Visalia, averaging 20.9°C.
For May in Visalia, pack light layers you can adjust through the day, with typical highs of 28.3°C and lows of 13.4°C.
Relative humidity in May averages 47% — relatively dry.
Average wind speed in May is 1.8 m/s. The windiest May on record averaged 2.1 m/s (1984).
The wettest May on record was 2019 with 74 mm. On average, May sees 17 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 Visalia 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.
