May is one of the warmer months of the year in Springfield, with average highs near 22.9°C and lows around 11.3°C (mean 17.1°C). It is a relatively wet time of year, averaging 111 mm of rainfall and 76% relative humidity across the period.
May is one of the warmer months of the year in Springfield. Across 45 years of records, the warmest May in Springfield was 2018 — when the month averaged 21.8°C — while the coldest were 1983 and 1984 at 14°C. Typical May days reach 22.9°C with nights near 11.3°C. The long-term trend is warming, about 0.4°C per decade.
May is a relatively wet time of year in Springfield, averaging 111 mm of rainfall. The wettest May on record was 1995 with 246 mm, while the driest was 1992 at 25 mm.
Relative humidity in Springfield during May averages 76%. The most humid May was 1991 at 84%, and the least humid was 1988 at 66%.
May receives about 5.6 kWh/m²/day of solar energy in Springfield. The sunniest May was 2012 at 6.7 kWh/m²/day, and the cloudiest was 1995 at 4.6.
Average wind speed in Springfield during May is 3.1 m/s. The windiest Mays were 1985, 1997 and 2008 at 3.6 m/s, while the calmest were 1991, 1994 and 2018 at 2.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 16.4°C | 16.6°C | 17.1°C | 18.0°C | 17.4°C | +1°C |
| Avg High | 22.5°C | 22.4°C | 22.9°C | 23.5°C | 23.0°C | +0.5°C |
| Avg Low | 10.3°C | 10.8°C | 11.2°C | 12.4°C | 11.7°C | +1.4°C |
| Avg Rain | 98 mm | 123 mm | 109 mm | 120 mm | 100 mm | +2 mm |
May temperatures in Springfield have risen by about 2°C between 1981–1985 and 2021–2025.
May has ranged from a record low of -2.4°C (1989) to a record high of 33°C (2018).
Rainfall in May is a relatively wet time of year, averaging 111 mm, with a wettest year of 246 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.3°C per decade while lows rose 0.5°C per decade, narrowing the gap between day and night.
A good time to visit Springfield
May is a good time to visit Springfield, with days averaging 22.9°C and nights around 11.3°C (mean 17.1°C, warmer than Springfield's yearly average) and higher rainfall. June and September are marginally more temperate, but May still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 22.7°C | 16.7°C | 10.6°C | 30.5°C | 5.4°C | 79 mm | 72% | 3 m/s | 5.5 |
| 2024 | 25.0°C | 19.3°C | 13.6°C | 29.9°C | 9.3°C | 84 mm | 75% | 2.9 m/s | 5.9 |
| 2023 | 24.6°C | 18.3°C | 12.0°C | 30.9°C | 2.5°C | 71 mm | 68% | 2.7 m/s | 6.5 |
| 2022 | 23.6°C | 18.3°C | 12.9°C | 30.4°C | 4.6°C | 97 mm | 79% | 3.5 m/s | 5.4 |
| 2021 | 21.6°C | 16.1°C | 10.5°C | 28.7°C | 1.0°C | 137 mm | 74% | 3.1 m/s | 5.2 |
| 2020 | 20.8°C | 15.6°C | 10.4°C | 29.0°C | 0.8°C | 133 mm | 80% | 3 m/s | 5.2 |
| 2019 | 22.6°C | 17.6°C | 12.6°C | 29.3°C | 4.8°C | 168 mm | 82% | 3.1 m/s | 5.3 |
| 2018 🔥 | 27.3°C | 21.8°C | 16.2°C | 33.0°C | 9.6°C | 77 mm | 77% | 2.6 m/s | 5.9 |
| 2017 | 22.4°C | 16.5°C | 10.6°C | 29.2°C | 3.8°C | 114 mm | 76% | 3.4 m/s | 6 |
| 2016 | 22.1°C | 16.7°C | 11.3°C | 28.6°C | 2.5°C | 89 mm | 76% | 2.9 m/s | 5.6 |
| 2015 | 23.8°C | 18.3°C | 12.7°C | 28.3°C | 2.8°C | 147 mm | 77% | 3.3 m/s | 5.6 |
| 2014 | 23.2°C | 17.6°C | 11.9°C | 29.3°C | 2.3°C | 64 mm | 76% | 3.2 m/s | 5.7 |
| 2013 | 22.9°C | 17.7°C | 12.5°C | 29.3°C | 1.3°C | 219 mm | 81% | 3.3 m/s | 5.1 |
| 2012 | 26.2°C | 19.8°C | 13.5°C | 32.8°C | 7.1°C | 58 mm | 69% | 3 m/s | 6.7 |
| 2011 | 22.1°C | 16.6°C | 11.2°C | 30.4°C | -0.2°C | 118 mm | 81% | 3.2 m/s | 5.1 |
| 2010 | 22.8°C | 17.3°C | 11.9°C | 29.8°C | 1.3°C | 145 mm | 80% | 3 m/s | 5.4 |
| 2009 | 22.3°C | 16.5°C | 10.7°C | 28.2°C | 1.9°C | 139 mm | 77% | 2.7 m/s | 5.7 |
| 2008 | 20.7°C | 14.9°C | 9.1°C | 28.3°C | 2.4°C | 133 mm | 77% | 3.6 m/s | 5 |
| 2007 | 24.7°C | 19.3°C | 13.8°C | 29.3°C | 7.0°C | 70 mm | 76% | 3 m/s | 5.6 |
| 2006 | 22.1°C | 16.8°C | 11.5°C | 31.2°C | 3.5°C | 62 mm | 76% | 3.1 m/s | 5.6 |
| 2005 | 22.5°C | 16.1°C | 9.7°C | 28.5°C | -0.7°C | 44 mm | 72% | 3.1 m/s | 6.5 |
| 2004 | 24.6°C | 19.1°C | 13.7°C | 30.1°C | 0.9°C | 150 mm | 80% | 3.3 m/s | 5.4 |
| 2003 | 22.6°C | 16.4°C | 10.2°C | 29.7°C | 3.0°C | 103 mm | 73% | 3.4 m/s | 5.1 |
| 2002 | 21.0°C | 14.7°C | 8.4°C | 30.5°C | -0.1°C | 200 mm | 79% | 3.3 m/s | 5.5 |
| 2001 | 23.5°C | 17.9°C | 12.2°C | 30.5°C | 5.4°C | 103 mm | 74% | 3.3 m/s | 5.4 |
| 2000 | 25.2°C | 18.8°C | 12.4°C | 31.0°C | 4.3°C | 87 mm | 71% | 3.5 m/s | 5 |
| 1999 | 23.3°C | 17.3°C | 11.3°C | 26.8°C | 5.7°C | 95 mm | 76% | 3.3 m/s | 6 |
| 1998 | 25.0°C | 19.5°C | 14.0°C | 29.9°C | 7.5°C | 140 mm | 81% | 2.7 m/s | 5.6 |
| 1997 | 20.7°C | 14.4°C | 8.1°C | 29.4°C | 3.2°C | 83 mm | 69% | 3.6 m/s | 5.9 |
| 1996 | 22.7°C | 17.0°C | 11.4°C | 30.4°C | 3.8°C | 186 mm | 79% | 3.3 m/s | 5 |
| 1995 🌧️ | 21.1°C | 15.5°C | 10.0°C | 26.5°C | 4.4°C | 246 mm | 78% | 3.1 m/s | 4.6 |
| 1994 | 21.4°C | 15.2°C | 9.0°C | 28.4°C | 1.6°C | 67 mm | 76% | 2.6 m/s | 6.5 |
| 1993 | 21.9°C | 16.6°C | 11.4°C | 27.0°C | 3.2°C | 56 mm | 80% | 3.2 m/s | 5.4 |
| 1992 | 21.5°C | 15.3°C | 9.0°C | 27.8°C | 0.2°C | 25 mm | 72% | 2.8 m/s | 6 |
| 1991 | 24.9°C | 20.0°C | 15.1°C | 31.4°C | 3.9°C | 142 mm | 84% | 2.6 m/s | 5.2 |
| 1990 | 21.0°C | 15.1°C | 9.1°C | 27.3°C | 2.0°C | 193 mm | 77% | 3.5 m/s | 5 |
| 1989 | 21.3°C | 15.0°C | 8.7°C | 29.5°C | -2.4°C | 109 mm | 72% | 3.1 m/s | 5.5 |
| 1988 | 24.7°C | 17.4°C | 10.1°C | 30.8°C | 2.4°C | 40 mm | 66% | 3 m/s | 6.6 |
| 1987 | 25.3°C | 19.3°C | 13.3°C | 29.1°C | 3.9°C | 41 mm | 74% | 2.8 m/s | 6.6 |
| 1986 | 22.9°C | 17.3°C | 11.8°C | 27.9°C | 3.8°C | 73 mm | 76% | 2.8 m/s | 5.5 |
| 1985 | 23.1°C | 17.1°C | 11.0°C | 29.4°C | 4.0°C | 63 mm | 75% | 3.6 m/s | 5.8 |
| 1984 | 20.0°C | 14.0°C | 8.0°C | 26.9°C | 1.6°C | 151 mm | 78% | 3.2 m/s | 5.5 |
| 1983 ❄️ | 19.8°C | 14.0°C | 8.2°C | 24.1°C | -1.8°C | 127 mm | 79% | 3.5 m/s | — |
| 1982 | 24.9°C | 19.2°C | 13.5°C | 27.9°C | 7.8°C | 116 mm | 78% | 2.9 m/s | — |
| 1981 | 20.5°C | 14.4°C | 8.2°C | 27.0°C | 1.8°C | 167 mm | 74% | 3.4 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 22.9°C with lows near 11.3°C (mean 17.1°C), based on 45 years of NASA POWER data.
May averages 111 mm of rainfall in Springfield, a relatively wet time of year. The wettest on record was 246 mm in 1995.
The hottest May reached 33°C in 2018. The coldest dipped to -2.4°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 2°C. Daytime highs moved from 21.7°C to 23.5°C and overnight lows from 9.8°C to 11.9°C over the same span.
May is one of the warmer months of the year in Springfield and a relatively wet time of year, so plan for around 22.9°C daytime highs and 11.3°C at night.
Not quite — May is the 8th coolest month in Springfield, averaging 17.1°C.
For May in Springfield, pack light layers you can adjust through the day, with typical highs of 22.9°C and lows of 11.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 76% — quite humid.
Average wind speed in May is 3.1 m/s. The windiest May on record averaged 3.6 m/s (1985).
The wettest May on record was 1995 with 246 mm. On average, May sees 111 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 Springfield 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.
