May is one of the warmer months of the year in Conroe, with average highs near 30.1°C and lows around 18.8°C (mean 24.5°C). It is a relatively wet time of year, averaging 138 mm of rainfall and 76% relative humidity across the period.
May is one of the warmer months of the year in Conroe. Across 45 years of records, the warmest May in Conroe was 1996 — when the month averaged 27.5°C — while the coldest was 1993 at 21.6°C. Typical May days reach 30.1°C with nights near 18.8°C. The long-term trend is warming, about 0.4°C per decade.
May is a relatively wet time of year in Conroe, averaging 138 mm of rainfall. The wettest May on record was 2024 with 363 mm, while the driest was 1998 at 2 mm.
Relative humidity in Conroe during May averages 76%. The most humid May was 2015 at 87%, and the least humid was 2011 at 60%.
May receives about 5.8 kWh/m²/day of solar energy in Conroe. The sunniest May was 2022 at 6.6 kWh/m²/day, and the cloudiest was 2015 at 4.7.
Average wind speed in Conroe during May is 0.9 m/s. The windiest May was 2011 at 1.4 m/s, while the calmest was 2023 at 0.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.7°C | 24.2°C | 24.7°C | 24.8°C | 25.2°C | +1.5°C |
| Avg High | 29.5°C | 29.6°C | 30.4°C | 30.7°C | 30.6°C | +1.1°C |
| Avg Low | 17.9°C | 18.7°C | 19.0°C | 19.0°C | 19.7°C | +1.8°C |
| Avg Rain | 157 mm | 124 mm | 99 mm | 148 mm | 182 mm | +25 mm |
May temperatures in Conroe have risen by about 1.8°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 6.1°C (2013) to a record high of 40.6°C (1998).
Rainfall in May is a relatively wet time of year, averaging 138 mm, with a wettest year of 363 mm.
One of the best times to visit Conroe
May is one of the best times to visit Conroe. Expect days averaging 30.1°C and nights around 18.8°C (mean 24.5°C) — warmer than Conroe's yearly average — with higher rainfall (138 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 | 31.3°C | 25.5°C | 19.7°C | 37.3°C | 12.2°C | 168 mm | 75% | 0.9 m/s | 5.8 |
| 2024 🌧️ | 30.2°C | 25.8°C | 21.4°C | 37.2°C | 17.9°C | 363 mm | 86% | 0.8 m/s | 4.8 |
| 2023 | 29.2°C | 24.2°C | 19.2°C | 32.3°C | 12.5°C | 141 mm | 81% | 0.6 m/s | 5.4 |
| 2022 | 33.7°C | 27.2°C | 20.7°C | 38.0°C | 13.5°C | 88 mm | 70% | 1 m/s | 6.6 |
| 2021 | 28.0°C | 23.5°C | 18.9°C | 31.7°C | 13.3°C | 213 mm | 85% | 0.9 m/s | 4.9 |
| 2020 | 31.1°C | 24.7°C | 18.3°C | 35.5°C | 11.0°C | 121 mm | 72% | 1 m/s | 6.1 |
| 2019 | 29.9°C | 25.0°C | 20.2°C | 35.6°C | 14.3°C | 175 mm | 82% | 1 m/s | 5.5 |
| 2018 | 34.0°C | 27.0°C | 19.9°C | 37.8°C | 14.6°C | 61 mm | 67% | 0.8 m/s | 6.5 |
| 2017 | 30.6°C | 24.0°C | 17.4°C | 33.9°C | 9.7°C | 134 mm | 71% | 1 m/s | 6.2 |
| 2016 | 28.0°C | 23.4°C | 18.8°C | 31.9°C | 11.8°C | 291 mm | 84% | 0.9 m/s | 5.1 |
| 2015 | 27.9°C | 24.0°C | 20.2°C | 31.1°C | 12.1°C | 323 mm | 87% | 0.9 m/s | 4.7 |
| 2014 | 29.3°C | 23.2°C | 17.1°C | 33.2°C | 9.9°C | 235 mm | 73% | 1 m/s | 5.8 |
| 2013 | 29.9°C | 23.6°C | 17.4°C | 35.8°C | 6.1°C | 101 mm | 71% | 1.1 m/s | 6 |
| 2012 | 31.3°C | 25.3°C | 19.2°C | 36.9°C | 15.0°C | 59 mm | 73% | 0.8 m/s | 6.2 |
| 2011 | 33.0°C | 26.1°C | 19.2°C | 38.5°C | 9.0°C | 45 mm | 60% | 1.4 m/s | 6.5 |
| 2010 | 33.4°C | 26.7°C | 20.1°C | 38.1°C | 12.7°C | 60 mm | 66% | 1 m/s | 6.4 |
| 2009 | 29.6°C | 24.1°C | 18.6°C | 33.8°C | 11.2°C | 53 mm | 78% | 0.8 m/s | 6.1 |
| 2008 | 31.0°C | 24.9°C | 18.9°C | 36.3°C | 11.6°C | 94 mm | 71% | 1 m/s | 5.7 |
| 2007 | 27.5°C | 23.0°C | 18.5°C | 30.8°C | 12.4°C | 167 mm | 84% | 0.8 m/s | 5.4 |
| 2006 | 31.6°C | 25.2°C | 18.7°C | 36.0°C | 12.6°C | 88 mm | 70% | 1 m/s | 6.1 |
| 2005 | 30.0°C | 23.7°C | 17.4°C | 38.5°C | 8.1°C | 78 mm | 73% | 0.7 m/s | 6.2 |
| 2004 | 28.4°C | 23.4°C | 18.5°C | 36.3°C | 9.4°C | 169 mm | 83% | 1 m/s | 5.7 |
| 2003 | 32.6°C | 26.5°C | 20.4°C | 38.8°C | 15.6°C | 22 mm | 71% | 1 m/s | 5.5 |
| 2002 | 32.5°C | 25.8°C | 19.2°C | 36.5°C | 10.3°C | 51 mm | 66% | 1.2 m/s | 6 |
| 2001 | 30.2°C | 24.4°C | 18.7°C | 34.8°C | 12.0°C | 91 mm | 77% | 0.9 m/s | 6.2 |
| 2000 | 30.4°C | 25.5°C | 20.6°C | 34.7°C | 13.4°C | 180 mm | 79% | 1 m/s | 5.8 |
| 1999 | 30.5°C | 24.7°C | 18.8°C | 34.1°C | 12.3°C | 146 mm | 75% | 0.9 m/s | 6 |
| 1998 | 35.1°C | 27.3°C | 19.6°C | 40.6°C | 12.5°C | 2 mm | 64% | 1 m/s | 6.5 |
| 1997 | 27.8°C | 22.7°C | 17.5°C | 32.3°C | 10.6°C | 128 mm | 84% | 0.8 m/s | 5.6 |
| 1996 🔥 | 34.0°C | 27.5°C | 21.1°C | 38.3°C | 10.9°C | 27 mm | 66% | 1.3 m/s | 6 |
| 1995 | 29.2°C | 24.0°C | 18.7°C | 32.8°C | 10.9°C | 158 mm | 81% | 1 m/s | 5.6 |
| 1994 | 28.4°C | 23.3°C | 18.2°C | 32.9°C | 10.5°C | 163 mm | 81% | 0.7 m/s | 5.6 |
| 1993 ❄️ | 26.8°C | 21.6°C | 16.5°C | 30.8°C | 9.6°C | 198 mm | 83% | 0.9 m/s | 5.5 |
| 1992 | 26.7°C | 21.9°C | 17.1°C | 30.2°C | 7.5°C | 151 mm | 84% | 0.8 m/s | 5.2 |
| 1991 | 28.5°C | 24.3°C | 20.0°C | 34.0°C | 10.3°C | 140 mm | 86% | 0.8 m/s | 4.8 |
| 1990 | 28.9°C | 24.2°C | 19.4°C | 33.1°C | 12.1°C | 126 mm | 82% | 1.1 m/s | 5.7 |
| 1989 | 30.5°C | 25.1°C | 19.7°C | 33.5°C | 14.3°C | 212 mm | 79% | 1 m/s | 5.8 |
| 1988 | 31.5°C | 23.9°C | 16.3°C | 35.3°C | 10.9°C | 31 mm | 63% | 0.9 m/s | 6.2 |
| 1987 | 29.3°C | 24.4°C | 19.5°C | 33.7°C | 16.3°C | 159 mm | 79% | 0.8 m/s | 5.1 |
| 1986 | 28.2°C | 22.9°C | 17.7°C | 32.5°C | 11.4°C | 185 mm | 80% | 0.9 m/s | 5.3 |
| 1985 | 30.3°C | 24.2°C | 18.1°C | 38.2°C | 12.0°C | 64 mm | 73% | 0.9 m/s | 6.2 |
| 1984 | 30.7°C | 24.3°C | 17.8°C | 37.2°C | 10.0°C | 143 mm | 69% | 1.1 m/s | 5.7 |
| 1983 | 28.4°C | 22.7°C | 17.0°C | 31.5°C | 10.7°C | 265 mm | 78% | 1 m/s | — |
| 1982 | 28.1°C | 23.1°C | 18.2°C | 32.3°C | 9.4°C | 167 mm | 83% | 0.9 m/s | — |
| 1981 | 28.7°C | 22.9°C | 17.0°C | 34.5°C | 7.7°C | 189 mm | 77% | 1 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 30.1°C with lows near 18.8°C (mean 24.5°C), based on 45 years of NASA POWER data.
May averages 138 mm of rainfall in Conroe, a relatively wet time of year. The wettest on record was 363 mm in 2024.
The hottest May reached 40.6°C in 1998. The coldest dipped to 6.1°C in 2013.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1.8°C. Daytime highs moved from 29.2°C to 30.5°C and overnight lows from 17.6°C to 20°C over the same span.
May is one of the warmer months of the year in Conroe and a relatively wet time of year, so plan for around 30.1°C daytime highs and 18.8°C at night.
Not quite — May is the 8th coolest month in Conroe, averaging 24.5°C.
For May in Conroe, pack light, breathable clothing and sun protection, with typical highs of 30.1°C and lows of 18.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 76% — quite humid.
Average wind speed in May is 0.9 m/s. The windiest May on record averaged 1.4 m/s (2011).
The wettest May on record was 2024 with 363 mm. On average, May sees 138 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 Conroe 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.
