Keene weather in May: Keene, New Hampshire: normal highs, lows, rain and records for May
Keene in May has a normal high of 69°F and a normal low of 41°F, a daily mean of 55°F, rising from 64°F on the 1st to 73°F by the 31st. Measurable precipitation falls on 13 days in a normal May, 3.77 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 20°C and low of 5°C, 96 mm of precipitation in May.
- NOAA stationKeene
- Station IDUSC00274399
- Location42.94°N 72.32°W
- Elevation511 ft (156 m)
- From the center1 miles
- Population23,036
- Jan 30° 10°
- Feb 34° 11°
- Mar 43° 20°
- Apr 57° 30°
- May 69° 41°
- Jun 77° 51°
- Jul 82° 56°
- Aug 81° 54°
- Sep 73° 47°
- Oct 60° 36°
- Nov 47° 27°
- Dec 36° 18°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Keene in May?
The normal high is 69°F and the normal low 41°F, for a daily mean of 54.8°F. May is 11.5°F warmer than April and 9.0°F cooler than June. May is the 5th warmest month of the year in Keene and the 7th wettest. Across the month the normal high rises 9°F, from 64°F on May 1 to 73°F on May 31. From one year to the next May's mean temperature typically moves about 2.8°F either way (NOAA's standard deviation), so roughly two Mays in three average between 52°F and 58°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 | 64°F | 36°F | 40% | 26% |
| May 8 | 66°F | 38°F | 41% | 26% |
| May 15 | 69°F | 41°F | 42% | 26% |
| May 22 | 70°F | 43°F | 42% | 26% |
| May 31 | 73°F | 46°F | 42% | 26% |
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 | 64°F | 36°F | 40% | 26% | 14 h |
| May 2 | 64°F | 36°F | 40% | 26% | 14 h 10 min |
| May 3 | 65°F | 37°F | 40% | 26% | 14 h 10 min |
| May 4 | 65°F | 37°F | 40% | 26% | 14 h 10 min |
| May 5 | 65°F | 37°F | 41% | 26% | 14 h 10 min |
| May 6 | 66°F | 38°F | 41% | 26% | 14 h 20 min |
| May 7 | 66°F | 38°F | 41% | 26% | 14 h 20 min |
| May 8 | 66°F | 38°F | 41% | 26% | 14 h 20 min |
| May 9 | 67°F | 39°F | 41% | 26% | 14 h 20 min |
| May 10 | 67°F | 39°F | 41% | 26% | 14 h 30 min |
| May 11 | 67°F | 39°F | 41% | 26% | 14 h 30 min |
| May 12 | 68°F | 40°F | 41% | 26% | 14 h 30 min |
| May 13 | 68°F | 40°F | 42% | 26% | 14 h 30 min |
| May 14 | 68°F | 40°F | 42% | 26% | 14 h 30 min |
| May 15 | 69°F | 41°F | 42% | 26% | 14 h 40 min |
| May 16 | 69°F | 41°F | 42% | 26% | 14 h 40 min |
| May 17 | 69°F | 41°F | 42% | 26% | 14 h 40 min |
| May 18 | 69°F | 42°F | 42% | 26% | 14 h 40 min |
| May 19 | 70°F | 42°F | 42% | 26% | 14 h 50 min |
| May 20 | 70°F | 42°F | 42% | 26% | 14 h 50 min |
| May 21 | 70°F | 43°F | 42% | 26% | 14 h 50 min |
| May 22 | 70°F | 43°F | 42% | 26% | 14 h 50 min |
| May 23 | 71°F | 43°F | 42% | 26% | 14 h 50 min |
| May 24 | 71°F | 44°F | 42% | 26% | 14 h 50 min |
| May 25 | 71°F | 44°F | 42% | 26% | 15 h |
| May 26 | 72°F | 44°F | 42% | 26% | 15 h |
| May 27 | 72°F | 45°F | 42% | 26% | 15 h |
| May 28 | 72°F | 45°F | 42% | 26% | 15 h |
| May 29 | 72°F | 45°F | 42% | 26% | 15 h |
| May 30 | 73°F | 46°F | 42% | 26% | 15 h |
| May 31 | 73°F | 46°F | 42% | 26% | 15 h 10 min |
- Normal high
- 69°FMay average
- Normal low
- 41°FMay average
- Precipitation
- 3.77 inmonth total
- Days with precipitation
- 130.01 inch or more
- Days at 90°F or more
- 1
- Nights at 32°F or colder
- 5
- Daylight
- 14 h to 15 h 10 minMay 1 to May 31
- Days at 70°F or more
- 16
- Days at 80°F or more
- 6
- Sunshine
- 68%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00274399; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Keene in May?
On a given May day the chance of 0.01 inch or more is 42% on average, highest around May 19 (42%). In all, 3.77 in falls on 13 days of a normal May, 1 of them with an inch or more.
In a normal May in Keene, 1 days reach 90°F and 5 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00274399.
What are the records for May in Keene?
The warmest May temperature on this station's record (since 1893) is 98°F, on May 22, 1911; the coldest is 19°F, on May 11, 1900. The wettest May brought 10.90 in (1984); the snowiest, 2.8 inches (1967).
The May mean against the 1991-2020 normal of 54.8°F: 2021 55.0°F (+0.2), 2022 58.3°F (+3.5), 2023 53.7°F (−1.1), 2024 59.9°F (+5.1), 2025 57.0°F (+2.2), 2026 54.6°F (−0.2). 4 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 55.0°F | +0.2°F | 3.72 in |
| 2022 | 58.3°F | +3.5°F | 2.83 in |
| 2023 | 53.7°F | −1.1°F | 3.76 in |
| 2024 | 59.9°F | +5.1°F | 3.36 in |
| 2025 | 57.0°F | +2.2°F | 10.13 in |
| 2026 | 54.6°F | −0.2°F | 4.29 in |
Source: records: ACIS, station USC00274399; recent months: ACIS, station USC00274399. Records and recent months use complete months only.
How does May in Keene compare across New Hampshire?
Across the 28 places PlainClimate covers in New Hampshire, May normal highs run from 64°F in Colebrook to 71°F in Hanover; Keene's is 69°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.