May is one of the warmer months of the year in Clarksville, with average highs near 24.4°C and lows around 13.7°C (mean 19°C). It is a relatively wet time of year, averaging 136 mm of rainfall and 80% relative humidity across the period.
May is one of the warmer months of the year in Clarksville. Across 45 years of records, the warmest May in Clarksville was 2018 — when the month averaged 22.6°C — while the coldest was 1997 at 16.4°C. Typical May days reach 24.4°C with nights near 13.7°C. The long-term trend is warming, about 0.4°C per decade.
May is a relatively wet time of year in Clarksville, averaging 136 mm of rainfall. The wettest May on record was 2010 with 311 mm, while the driest was 2005 at 27 mm.
Relative humidity in Clarksville during May averages 80%. The most humid May was 1991 at 86%, and the least humid was 1988 at 71%.
May receives about 5.7 kWh/m²/day of solar energy in Clarksville. The sunniest May was 2005 at 6.9 kWh/m²/day, and the cloudiest was 1990 at 4.8.
Average wind speed in Clarksville during May is 1 m/s. The windiest May was 1983 at 1.3 m/s, while the calmest were 1987 and 2012 at 0.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.4°C | 18.8°C | 19.1°C | 19.9°C | 19.2°C | +0.8°C |
| Avg High | 24.0°C | 24.1°C | 24.6°C | 25.1°C | 24.5°C | +0.5°C |
| Avg Low | 12.7°C | 13.4°C | 13.5°C | 14.8°C | 14.0°C | +1.3°C |
| Avg Rain | 140 mm | 129 mm | 135 mm | 138 mm | 141 mm | +1 mm |
May temperatures in Clarksville have risen by about 1.6°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 1.6°C (1989) to a record high of 34.1°C (2012).
Rainfall in May is a relatively wet time of year, averaging 136 mm, with a wettest year of 311 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.
One of the best times to visit Clarksville
May is one of the best times to visit Clarksville. Expect days averaging 24.4°C and nights around 13.7°C (mean 19°C) — warmer than Clarksville's yearly average — with higher rainfall (136 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 | 23.4°C | 18.9°C | 14.4°C | 28.2°C | 7.9°C | 163 mm | 83% | 1 m/s | 4.9 |
| 2024 | 26.4°C | 21.4°C | 16.4°C | 30.0°C | 11.1°C | 264 mm | 81% | 0.9 m/s | 5.4 |
| 2023 | 24.7°C | 19.2°C | 13.8°C | 28.9°C | 5.1°C | 97 mm | 79% | 0.9 m/s | 6 |
| 2022 | 25.8°C | 20.4°C | 14.9°C | 30.2°C | 8.5°C | 93 mm | 82% | 1.1 m/s | 5.9 |
| 2021 | 23.4°C | 17.7°C | 12.0°C | 31.2°C | 5.4°C | 112 mm | 78% | 1 m/s | 5.8 |
| 2020 | 23.0°C | 17.8°C | 12.5°C | 30.0°C | 2.0°C | 117 mm | 82% | 1 m/s | 5.6 |
| 2019 | 26.0°C | 21.1°C | 16.2°C | 31.1°C | 7.4°C | 78 mm | 82% | 1 m/s | 5.6 |
| 2018 🔥 | 27.5°C | 22.6°C | 17.8°C | 32.1°C | 7.9°C | 156 mm | 84% | 0.9 m/s | 6 |
| 2017 | 24.6°C | 19.2°C | 13.9°C | 29.0°C | 5.2°C | 120 mm | 78% | 1.2 m/s | 6.1 |
| 2016 | 23.3°C | 18.1°C | 12.8°C | 30.0°C | 5.3°C | 136 mm | 81% | 1 m/s | 5.6 |
| 2015 | 25.0°C | 19.8°C | 14.6°C | 28.2°C | 3.6°C | 121 mm | 81% | 1 m/s | 5.7 |
| 2014 | 25.0°C | 19.6°C | 14.3°C | 28.9°C | 5.4°C | 68 mm | 80% | 1.1 m/s | 6.3 |
| 2013 | 23.3°C | 18.3°C | 13.2°C | 28.4°C | 2.4°C | 130 mm | 82% | 1.1 m/s | 5.7 |
| 2012 | 27.3°C | 21.7°C | 16.0°C | 34.1°C | 8.5°C | 87 mm | 77% | 0.8 m/s | 6.4 |
| 2011 | 23.5°C | 18.5°C | 13.5°C | 32.9°C | 3.0°C | 168 mm | 84% | 1.1 m/s | 5.2 |
| 2010 🌧️ | 25.3°C | 20.4°C | 15.4°C | 29.7°C | 4.4°C | 311 mm | 84% | 1 m/s | 5.5 |
| 2009 | 23.2°C | 18.4°C | 13.6°C | 27.3°C | 4.7°C | 207 mm | 84% | 1 m/s | 5.1 |
| 2008 | 23.8°C | 18.3°C | 12.7°C | 29.1°C | 5.1°C | 153 mm | 80% | 1.2 m/s | 5.6 |
| 2007 | 26.8°C | 20.6°C | 14.4°C | 30.4°C | 5.9°C | 60 mm | 72% | 0.9 m/s | 6.4 |
| 2006 | 24.1°C | 18.6°C | 13.1°C | 31.8°C | 6.5°C | 130 mm | 81% | 1 m/s | 5.6 |
| 2005 | 23.7°C | 17.6°C | 11.5°C | 30.7°C | 3.2°C | 27 mm | 76% | 0.9 m/s | 6.9 |
| 2004 | 25.7°C | 20.9°C | 16.1°C | 29.4°C | 4.4°C | 165 mm | 84% | 1.1 m/s | 5.8 |
| 2003 | 23.9°C | 19.2°C | 14.4°C | 27.9°C | 8.3°C | 179 mm | 84% | 1.2 m/s | 5.1 |
| 2002 | 23.4°C | 17.6°C | 11.8°C | 29.1°C | 3.3°C | 162 mm | 81% | 1.1 m/s | 5.3 |
| 2001 | 25.7°C | 19.6°C | 13.4°C | 30.8°C | 7.7°C | 108 mm | 74% | 1 m/s | 6.1 |
| 2000 | 25.5°C | 19.9°C | 14.3°C | 29.3°C | 7.1°C | 158 mm | 79% | 1.1 m/s | 5.5 |
| 1999 | 24.6°C | 18.8°C | 12.9°C | 28.2°C | 8.8°C | 96 mm | 77% | 1.1 m/s | 6.5 |
| 1998 | 26.4°C | 21.2°C | 16.0°C | 31.5°C | 9.0°C | 127 mm | 81% | 1 m/s | 5.9 |
| 1997 ❄️ | 22.3°C | 16.4°C | 10.4°C | 28.3°C | 3.5°C | 123 mm | 78% | 1.2 m/s | 5.9 |
| 1996 | 25.4°C | 20.4°C | 15.3°C | 32.0°C | 6.0°C | 138 mm | 82% | 1.1 m/s | 5.8 |
| 1995 | 24.4°C | 19.1°C | 13.9°C | 29.1°C | 5.2°C | 195 mm | 80% | 1.1 m/s | 5.2 |
| 1994 | 22.6°C | 16.5°C | 10.5°C | 29.1°C | 3.1°C | 76 mm | 78% | 1 m/s | 6 |
| 1993 | 23.9°C | 18.6°C | 13.3°C | 28.8°C | 7.6°C | 123 mm | 81% | 1 m/s | 5.3 |
| 1992 | 22.9°C | 17.5°C | 12.1°C | 27.7°C | 3.2°C | 96 mm | 79% | 1 m/s | 5.7 |
| 1991 | 26.0°C | 21.6°C | 17.1°C | 29.9°C | 6.7°C | 189 mm | 86% | 0.9 m/s | 4.9 |
| 1990 | 22.4°C | 17.4°C | 12.3°C | 27.3°C | 5.5°C | 132 mm | 82% | 1.2 m/s | 4.8 |
| 1989 | 22.5°C | 16.8°C | 11.1°C | 29.7°C | 1.6°C | 106 mm | 78% | 1.1 m/s | 5.8 |
| 1988 | 24.8°C | 18.2°C | 11.7°C | 31.4°C | 6.1°C | 72 mm | 71% | 1 m/s | 6.6 |
| 1987 | 26.7°C | 21.3°C | 16.0°C | 30.5°C | 8.6°C | 60 mm | 80% | 0.8 m/s | 6.1 |
| 1986 | 24.8°C | 19.3°C | 13.9°C | 30.0°C | 3.0°C | 128 mm | 77% | 0.9 m/s | 5.4 |
| 1985 | 24.3°C | 18.8°C | 13.2°C | 29.8°C | 6.7°C | 93 mm | 80% | 1.1 m/s | 5.6 |
| 1984 | 22.3°C | 16.6°C | 10.8°C | 27.9°C | 4.8°C | 251 mm | 81% | 1.2 m/s | 5.5 |
| 1983 | 21.8°C | 16.8°C | 11.7°C | 26.2°C | 5.2°C | 293 mm | 83% | 1.3 m/s | — |
| 1982 | 26.1°C | 20.6°C | 15.2°C | 29.2°C | 7.4°C | 116 mm | 80% | 0.9 m/s | — |
| 1981 | 22.6°C | 16.9°C | 11.1°C | 27.3°C | 4.7°C | 144 mm | 78% | 1.1 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 24.4°C with lows near 13.7°C (mean 19°C), based on 45 years of NASA POWER data.
May averages 136 mm of rainfall in Clarksville, a relatively wet time of year. The wettest on record was 311 mm in 2010.
The hottest May reached 34.1°C in 2012. The coldest dipped to 1.6°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1.6°C. Daytime highs moved from 23.4°C to 24.7°C and overnight lows from 12.4°C to 14.3°C over the same span.
May is one of the warmer months of the year in Clarksville and a relatively wet time of year, so plan for around 24.4°C daytime highs and 13.7°C at night.
Not quite — May is the 8th coolest month in Clarksville, averaging 19°C.
For May in Clarksville, pack light layers you can adjust through the day, with typical highs of 24.4°C and lows of 13.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 80% — quite humid.
Average wind speed in May is 1 m/s. The windiest May on record averaged 1.3 m/s (1983).
The wettest May on record was 2010 with 311 mm. On average, May sees 136 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 Clarksville 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.
