Roanoke weather in May: Roanoke, Virginia: normal highs, lows, rain and records for May
Roanoke in May has a normal high of 77°F and a normal low of 55°F, a daily mean of 66°F, rising from 74°F on the 1st to 80°F by the 31st. Measurable precipitation falls on 12 days in a normal May, 4.31 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 25°C and low of 13°C, 109 mm of precipitation in May.
- NOAA stationRoanoke-Blacksburg Regional Airport
- Station IDUSW00013741
- Location37.32°N 79.97°W
- Elevation1,175 ft (358 m)
- From the center3 miles
- Population97,912
- Jan 47° 29°
- Feb 51° 31°
- Mar 59° 38°
- Apr 70° 46°
- May 77° 55°
- Jun 84° 63°
- Jul 88° 67°
- Aug 87° 66°
- Sep 80° 59°
- Oct 70° 48°
- Nov 59° 38°
- Dec 50° 32°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Roanoke in May?
The normal high is 77°F and the normal low 55°F, for a daily mean of 66.1°F. May is 8.1°F warmer than April and 7.7°F cooler than June. May is the 5th warmest month of the year in Roanoke and the 2nd wettest. Across the month the normal high rises 6°F, from 74°F on May 1 to 80°F on May 31. From one year to the next May's mean temperature typically moves about 3.1°F either way (NOAA's standard deviation), so roughly two Mays in three average between 63°F and 69°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 42%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 74°F | 51°F | 39% | 24% |
| May 8 | 76°F | 53°F | 40% | 26% |
| May 15 | 77°F | 55°F | 41% | 27% |
| May 22 | 78°F | 57°F | 41% | 27% |
| May 31 | 80°F | 59°F | 42% | 27% |
Every day of May: normal high, low and chance of precipitation (warmest afternoon May 31, coldest night May 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| May 1 | 74°F | 51°F | 39% | 24% | 13 h 40 min |
| May 2 | 75°F | 51°F | 39% | 24% | 13 h 40 min |
| May 3 | 75°F | 51°F | 40% | 25% | 13 h 50 min |
| May 4 | 75°F | 52°F | 40% | 25% | 13 h 50 min |
| May 5 | 75°F | 52°F | 40% | 25% | 13 h 50 min |
| May 6 | 75°F | 52°F | 40% | 25% | 13 h 50 min |
| May 7 | 76°F | 53°F | 40% | 25% | 13 h 50 min |
| May 8 | 76°F | 53°F | 40% | 26% | 14 h |
| May 9 | 76°F | 53°F | 40% | 26% | 14 h |
| May 10 | 76°F | 53°F | 40% | 26% | 14 h |
| May 11 | 76°F | 54°F | 40% | 26% | 14 h |
| May 12 | 76°F | 54°F | 40% | 26% | 14 h |
| May 13 | 77°F | 54°F | 40% | 26% | 14 h 10 min |
| May 14 | 77°F | 54°F | 40% | 26% | 14 h 10 min |
| May 15 | 77°F | 55°F | 41% | 27% | 14 h 10 min |
| May 16 | 77°F | 55°F | 41% | 27% | 14 h 10 min |
| May 17 | 77°F | 55°F | 41% | 27% | 14 h 10 min |
| May 18 | 78°F | 56°F | 41% | 27% | 14 h 10 min |
| May 19 | 78°F | 56°F | 41% | 27% | 14 h 20 min |
| May 20 | 78°F | 56°F | 41% | 27% | 14 h 20 min |
| May 21 | 78°F | 56°F | 41% | 27% | 14 h 20 min |
| May 22 | 78°F | 57°F | 41% | 27% | 14 h 20 min |
| May 23 | 79°F | 57°F | 41% | 27% | 14 h 20 min |
| May 24 | 79°F | 57°F | 41% | 27% | 14 h 20 min |
| May 25 | 79°F | 58°F | 41% | 27% | 14 h 20 min |
| May 26 | 79°F | 58°F | 41% | 27% | 14 h 30 min |
| May 27 | 79°F | 58°F | 41% | 27% | 14 h 30 min |
| May 28 | 80°F | 58°F | 41% | 27% | 14 h 30 min |
| May 29 | 80°F | 59°F | 41% | 27% | 14 h 30 min |
| May 30 | 80°F | 59°F | 41% | 27% | 14 h 30 min |
| May 31 | 80°F | 59°F | 42% | 27% | 14 h 30 min |
- Normal high
- 77°FMay average
- Normal low
- 55°FMay average
- Precipitation
- 4.31 inmonth total
- Days with precipitation
- 120.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 13 h 40 min to 14 h 30 minMay 1 to May 31
- Days at 70°F or more
- 24
- Days at 80°F or more
- 13
- Sunshine
- 73%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00013741; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Roanoke in May?
On a given May day the chance of 0.01 inch or more is 41% on average, highest around May 31 (42%). In all, 4.31 in falls on 12 days of a normal May, 1 of them with an inch or more.
In a normal May in Roanoke, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013741.
How humid and windy is Roanoke in May?
At 3 p.m. the normal temperature is 78°F with 50% relative humidity and a dew point of 58°F; at 6 a.m. it is 62°F with 84% humidity. The wind averages 6.0 mph, most often from the southwest in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 62°F | 57°F | 84% | 3.9 mph | 54% |
| 9 a.m. | 70°F | 58°F | 66% | 6.2 mph | 49% |
| noon | 76°F | 58°F | 53% | 7.9 mph | 29% |
| 3 p.m. | 78°F | 58°F | 50% | 9.2 mph | 27% |
| 6 p.m. | 75°F | 58°F | 55% | 8.6 mph | 47% |
| 9 p.m. | 69°F | 58°F | 68% | 4.9 mph | 57% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00013741. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for May in Roanoke?
The warmest May temperature on Roanoke's official record (since 1912) is 99°F, on May 22, 1941; the coldest is 30°F, on May 2, 1943. The wettest May brought 11.44 in (2020).
The May mean against the 1991-2020 normal of 66.1°F: 2021 64.6°F (−1.5), 2022 67.1°F (+1.0), 2023 64.3°F (−1.8), 2024 69.6°F (+3.5), 2025 64.6°F (−1.5), 2026 64.8°F (−1.3). 2 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 64.6°F | −1.5°F | 1.93 in |
| 2022 | 67.1°F | +1.0°F | 7.03 in |
| 2023 | 64.3°F | −1.8°F | 2.82 in |
| 2024 | 69.6°F | +3.5°F | 3.74 in |
| 2025 | 64.6°F | −1.5°F | 7.55 in |
| 2026 | 64.8°F | −1.3°F | 1.89 in |
Source: records: ACIS, NWS threaded record ROAthr; recent months: ACIS, station USW00013741. Records and recent months use complete months only.
How does May in Roanoke compare across Virginia?
Across the 81 places PlainClimate covers in Virginia, May normal highs run from 71°F in Floyd to 82°F in Chesapeake; Roanoke's is 77°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.