Harvey Weather in May
Average highs run from 53°F on May 1 to 64°F on May 31, and lows from 36°F to 45°F. Normal precipitation for the month is 2.90 in over about 12 wet days.
May day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
May at a glance
- Average high
- 59°F
- Average low
- 41°F
- Precipitation
- 2.90 in
- Snowfall
- 0.3 in
- Record high
- 87°FMay 27, 2020
- Record low
- 25°FMay 2, 2026
- Chance of a freeze
- 75%
- Daylight
- 14 h 24 min to 15 h 33 min
- Cloud cover
- 76%
- Humidity
- 78%
- Dew point
- 41°F
- Wind
- 6.7 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| May 1 | 53°F | 36°F | 74°F 2018 | 30°F 2015 | 35% | 5% |
| May 2 | 53°F | 37°F | 81°F 2018 | 25°F 2026 | 35% | 4% |
| May 3 | 54°F | 37°F | 75°F 2015 | 27°F 2026 | 35% | 4% |
| May 4 | 54°F | 37°F | 79°F 2015 | 29°F 2022 | 36% | 4% |
| May 5 | 55°F | 38°F | 71°F 2024 | 27°F 2020 | 36% | 3% |
| May 6 | 55°F | 38°F | 70°F 2025 | 27°F 2020 | 36% | 3% |
| May 7 | 56°F | 38°F | 80°F 2016 | 26°F 2019 | 36% | 3% |
| May 8 | 56°F | 38°F | 81°F 2015 | 25°F 2017 | 36% | 2% |
| May 9 | 56°F | 39°F | 77°F 2015 | 25°F 2017 | 36% | 2% |
| May 10 | 57°F | 39°F | 76°F 2025 | 30°F 2020 | 37% | 2% |
| May 11 | 57°F | 39°F | 78°F 2022 | 27°F 2018 | 37% | 2% |
| May 12 | 58°F | 40°F | 81°F 2023 | 26°F 2020 | 37% | 2% |
| May 13 | 58°F | 40°F | 85°F 2022 | 25°F 2020 | 37% | 2% |
| May 14 | 58°F | 40°F | 84°F 2022 | 33°F 2016 | 38% | 1% |
| May 15 | 59°F | 41°F | 81°F 2022 | 34°F 2016 | 38% | 1% |
| May 16 | 59°F | 41°F | 78°F 2025 | 35°F 2020 | 38% | 1% |
| May 17 | 59°F | 41°F | 84°F 2018 | 31°F 2016 | 38% | 1% |
| May 18 | 60°F | 41°F | 80°F 2021 | 33°F 2016 | 38% | 1% |
| May 19 | 60°F | 42°F | 83°F 2024 | 33°F 2015 | 38% | 1% |
| May 20 | 60°F | 42°F | 79°F 2024 | 27°F 2015 | 38% | 1% |
| May 21 | 61°F | 42°F | 78°F 2016 | 28°F 2026 | 38% | 1% |
| May 22 | 61°F | 43°F | 78°F 2016 | 31°F 2015 | 39% | 1% |
| May 23 | 61°F | 43°F | 83°F 2021 | 32°F 2022 | 39% | 1% |
| May 24 | 62°F | 43°F | 85°F 2016 | 35°F 2022 | 39% | 1% |
| May 25 | 62°F | 44°F | 82°F 2018 | 30°F 2023 | 39% | 0% |
| May 26 | 62°F | 44°F | 86°F 2020 | 36°F 2023 | 39% | 0% |
| May 27 | 63°F | 44°F | 87°F 2020 | 34°F 2021 | 39% | 0% |
| May 28 | 63°F | 44°F | 84°F 2020 | 34°F 2021 | 39% | 0% |
| May 29 | 63°F | 45°F | 83°F 2023 | 31°F 2021 | 39% | 0% |
| May 30 | 63°F | 45°F | 85°F 2023 | 35°F 2021 | 39% | 0% |
| May 31 | 64°F | 45°F | 87°F 2023 | 34°F 2020 | 39% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- May 1
- sunrise 6:35 AM, sunset 8:59 PM
- May 31
- sunrise 6:01 AM, sunset 9:34 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00014838 (Marquette), public domain. Records: NOAA GHCN-Daily, station USC00204425, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.