Jamestown weather in May: Jamestown, North Dakota: normal highs, lows, rain and records for May
Jamestown in May has a normal high of 67°F and a normal low of 43°F, a daily mean of 55°F, rising from 60°F on the 1st to 72°F by the 31st. Measurable precipitation falls on 11 days in a normal May, 3.26 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 19°C and low of 6°C, 83 mm of precipitation in May.
- NOAA stationJamestown Municipal Airport
- Station IDUSW00014919
- Location46.93°N 98.67°W
- Elevation1,494 ft (455 m)
- From the center2 miles
- Population15,789
- Jan 19° 1°
- Feb 24° 5°
- Mar 37° 17°
- Apr 53° 30°
- May 67° 43°
- Jun 76° 54°
- Jul 81° 58°
- Aug 80° 55°
- Sep 71° 46°
- Oct 55° 33°
- Nov 38° 19°
- Dec 24° 7°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Jamestown in May?
The normal high is 67°F and the normal low 43°F, for a daily mean of 54.7°F. May is 13.3°F warmer than April and 10.3°F cooler than June. May is the 5th warmest month of the year in Jamestown and the 3rd wettest. Across the month the normal high rises 12°F, from 60°F on May 1 to 72°F on May 31. From one year to the next May's mean temperature typically moves about 2.9°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 38%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 60°F | 36°F | 31% | 17% |
| May 8 | 64°F | 39°F | 34% | 19% |
| May 15 | 67°F | 42°F | 35% | 20% |
| May 22 | 69°F | 45°F | 37% | 21% |
| May 31 | 72°F | 49°F | 38% | 22% |
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 | 60°F | 36°F | 31% | 17% | 14 h 20 min |
| May 2 | 61°F | 37°F | 32% | 17% | 14 h 30 min |
| May 3 | 61°F | 37°F | 32% | 17% | 14 h 30 min |
| May 4 | 62°F | 37°F | 33% | 18% | 14 h 30 min |
| May 5 | 62°F | 38°F | 33% | 18% | 14 h 30 min |
| May 6 | 63°F | 38°F | 33% | 18% | 14 h 40 min |
| May 7 | 63°F | 39°F | 34% | 19% | 14 h 40 min |
| May 8 | 64°F | 39°F | 34% | 19% | 14 h 40 min |
| May 9 | 64°F | 40°F | 34% | 19% | 14 h 40 min |
| May 10 | 64°F | 40°F | 35% | 19% | 14 h 50 min |
| May 11 | 65°F | 41°F | 35% | 19% | 14 h 50 min |
| May 12 | 65°F | 41°F | 35% | 19% | 14 h 50 min |
| May 13 | 66°F | 41°F | 35% | 20% | 15 h |
| May 14 | 66°F | 42°F | 35% | 20% | 15 h |
| May 15 | 67°F | 42°F | 35% | 20% | 15 h |
| May 16 | 67°F | 43°F | 36% | 20% | 15 h |
| May 17 | 67°F | 43°F | 36% | 20% | 15 h 10 min |
| May 18 | 68°F | 44°F | 36% | 20% | 15 h 10 min |
| May 19 | 68°F | 44°F | 36% | 20% | 15 h 10 min |
| May 20 | 69°F | 45°F | 37% | 21% | 15 h 10 min |
| May 21 | 69°F | 45°F | 37% | 21% | 15 h 10 min |
| May 22 | 69°F | 45°F | 37% | 21% | 15 h 20 min |
| May 23 | 70°F | 46°F | 37% | 21% | 15 h 20 min |
| May 24 | 70°F | 46°F | 37% | 21% | 15 h 20 min |
| May 25 | 70°F | 47°F | 38% | 21% | 15 h 20 min |
| May 26 | 71°F | 47°F | 38% | 21% | 15 h 30 min |
| May 27 | 71°F | 48°F | 38% | 22% | 15 h 30 min |
| May 28 | 71°F | 48°F | 38% | 22% | 15 h 30 min |
| May 29 | 72°F | 48°F | 38% | 22% | 15 h 30 min |
| May 30 | 72°F | 49°F | 38% | 22% | 15 h 30 min |
| May 31 | 72°F | 49°F | 38% | 22% | 15 h 30 min |
- Normal high
- 67°FMay average
- Normal low
- 43°FMay average
- Precipitation
- 3.26 inmonth total
- Days with precipitation
- 110.01 inch or more
- Nights at 32°F or colder
- 4
- Daylight
- 14 h 20 min to 15 h 30 minMay 1 to May 31
- Days at 70°F or more
- 13
- Days at 80°F or more
- 4
- Sunshine
- 72%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014919; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Jamestown in May?
On a given May day the chance of 0.01 inch or more is 36% on average, highest around May 31 (38%). In all, 3.26 in falls on 11 days of a normal May, 1 of them with an inch or more.
In a normal May in Jamestown, 4 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014919.
How humid and windy is Jamestown in May?
At 3 p.m. the normal temperature is 70°F with 47% relative humidity and a dew point of 49°F; at 6 a.m. it is 53°F with 83% humidity. The wind averages 11.0 mph, most often from the west in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 53°F | 48°F | 83% | 8.9 mph | – |
| 9 a.m. | 62°F | 49°F | 64% | 12.4 mph | 59% |
| noon | 67°F | 49°F | 51% | 13.7 mph | – |
| 3 p.m. | 70°F | 49°F | 47% | 13.5 mph | – |
| 6 p.m. | 68°F | 48°F | 48% | 12.9 mph | 56% |
| 9 p.m. | 61°F | 49°F | 66% | 8.8 mph | 64% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014919. 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 Jamestown?
The warmest May temperature on this station's record (since 1948) is 100°F, on May 27, 1969; the coldest is 16°F, on May 2, 1967. The wettest May brought 8.75 in (2015); the snowiest, 13.0 inches (1950).
The May mean against the 1991-2020 normal of 54.7°F: 2021 54.5°F (−0.2), 2022 54.9°F (+0.2), 2023 62.0°F (+7.3), 2024 55.9°F (+1.2), 2025 56.9°F (+2.2), 2026 55.1°F (+0.4). 5 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 54.5°F | −0.2°F | 1.80 in |
| 2022 | 54.9°F | +0.2°F | 3.99 in |
| 2023 | 62.0°F | +7.3°F | 3.76 in |
| 2024 | 55.9°F | +1.2°F | 2.76 in |
| 2025 | 56.9°F | +2.2°F | 2.26 in |
| 2026 | 55.1°F | +0.4°F | 1.90 in |
Source: records: ACIS, station USW00014919; recent months: ACIS, station USW00014919. Records and recent months use complete months only.
How does May in Jamestown compare across North Dakota?
Across the 92 places PlainClimate covers in North Dakota, May normal highs run from 62°F in Rolla to 71°F in Enderlin; Jamestown's is 67°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.