Port Huron weather in May: Port Huron, Michigan: normal highs, lows, rain and records for May
Port Huron in May has a normal high of 67°F and a normal low of 49°F, a daily mean of 58°F, rising from 61°F on the 1st to 72°F by the 31st. Measurable precipitation falls on 13 days in a normal May, 3.53 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 19°C and low of 9°C, 90 mm of precipitation in May.
- NOAA stationPort Huron
- Station IDUSC00206680
- Location42.98°N 82.42°W
- Elevation590 ft (180 m)
- From the center1 miles
- Population28,342
- Jan 31° 20°
- Feb 33° 21°
- Mar 42° 28°
- Apr 54° 38°
- May 67° 49°
- Jun 76° 59°
- Jul 81° 65°
- Aug 80° 64°
- Sep 73° 57°
- Oct 61° 46°
- Nov 47° 35°
- Dec 36° 26°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Port Huron in May?
The normal high is 67°F and the normal low 49°F, for a daily mean of 57.7°F. May is 11.6°F warmer than April and 9.9°F cooler than June. May is the 5th warmest month of the year in Port Huron and the 2nd wettest. Across the month the normal high rises 11°F, from 61°F on May 1 to 72°F on May 31. From one year to the next May's mean temperature typically moves about 3.5°F either way (NOAA's standard deviation), so roughly two Mays in three average between 54°F and 61°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 43%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 61°F | 44°F | 43% | 25% |
| May 8 | 64°F | 46°F | 43% | 25% |
| May 15 | 67°F | 49°F | 42% | 25% |
| May 22 | 69°F | 51°F | 40% | 25% |
| May 31 | 72°F | 54°F | 39% | 24% |
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 | 61°F | 44°F | 43% | 25% | 14 h |
| May 2 | 62°F | 44°F | 43% | 25% | 14 h 10 min |
| May 3 | 62°F | 44°F | 43% | 25% | 14 h 10 min |
| May 4 | 62°F | 45°F | 43% | 25% | 14 h 10 min |
| May 5 | 63°F | 45°F | 43% | 25% | 14 h 10 min |
| May 6 | 63°F | 46°F | 43% | 25% | 14 h 20 min |
| May 7 | 64°F | 46°F | 43% | 25% | 14 h 20 min |
| May 8 | 64°F | 46°F | 43% | 25% | 14 h 20 min |
| May 9 | 64°F | 47°F | 43% | 26% | 14 h 20 min |
| May 10 | 65°F | 47°F | 43% | 26% | 14 h 30 min |
| May 11 | 65°F | 47°F | 43% | 26% | 14 h 30 min |
| May 12 | 65°F | 48°F | 42% | 25% | 14 h 30 min |
| May 13 | 66°F | 48°F | 42% | 25% | 14 h 30 min |
| May 14 | 66°F | 48°F | 42% | 25% | 14 h 30 min |
| May 15 | 67°F | 49°F | 42% | 25% | 14 h 40 min |
| May 16 | 67°F | 49°F | 42% | 25% | 14 h 40 min |
| May 17 | 67°F | 49°F | 41% | 25% | 14 h 40 min |
| May 18 | 68°F | 50°F | 41% | 25% | 14 h 40 min |
| May 19 | 68°F | 50°F | 41% | 25% | 14 h 50 min |
| May 20 | 68°F | 50°F | 41% | 25% | 14 h 50 min |
| May 21 | 69°F | 51°F | 40% | 25% | 14 h 50 min |
| May 22 | 69°F | 51°F | 40% | 25% | 14 h 50 min |
| May 23 | 69°F | 51°F | 40% | 25% | 14 h 50 min |
| May 24 | 70°F | 51°F | 40% | 24% | 14 h 50 min |
| May 25 | 70°F | 52°F | 40% | 24% | 15 h |
| May 26 | 70°F | 52°F | 40% | 24% | 15 h |
| May 27 | 71°F | 52°F | 39% | 24% | 15 h |
| May 28 | 71°F | 53°F | 39% | 24% | 15 h |
| May 29 | 71°F | 53°F | 39% | 24% | 15 h |
| May 30 | 72°F | 53°F | 39% | 24% | 15 h |
| May 31 | 72°F | 54°F | 39% | 24% | 15 h 10 min |
- Normal high
- 67°FMay average
- Normal low
- 49°FMay average
- Precipitation
- 3.53 inmonth total
- Days with precipitation
- 130.01 inch or more
- Daylight
- 14 h to 15 h 10 minMay 1 to May 31
- Days at 70°F or more
- 13
- Days at 80°F or more
- 5
- Sunshine
- 71%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00206680; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Port Huron in May?
On a given May day the chance of 0.01 inch or more is 41% on average, highest around May 1 (43%). In all, 3.53 in falls on 13 days of a normal May, 1 of them with an inch or more.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00206680.
What are the records for May in Port Huron?
The warmest May temperature on this station's record (since 1931) is 95°F, on May 30, 1987; the coldest is 21°F, on May 10, 1941. The wettest May brought 8.31 in (1943).
The May mean against the 1991-2020 normal of 57.7°F: 2021 57.9°F (+0.2), 2022 60.3°F (+2.6), 2023 56.9°F (−0.8), 2024 61.2°F (+3.5), 2025 53.9°F (−3.9), 2026 54.5°F (−3.2). 3 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 57.9°F | +0.2°F | 1.51 in |
| 2022 | 60.3°F | +2.6°F | 2.85 in |
| 2023 | 56.9°F | −0.8°F | 1.16 in |
| 2024 | 61.2°F | +3.5°F | 3.33 in |
| 2025 | 53.9°F | −3.9°F | 3.00 in |
| 2026 | 54.5°F | −3.2°F | 1.34 in |
Source: records: ACIS, station USC00206680; recent months: ACIS, station USC00206680. Records and recent months use complete months only.
How does May in Port Huron compare across Michigan?
Across the 140 places PlainClimate covers in Michigan, May normal highs run from 57°F in Harrisville to 73°F in Eau Claire; Port Huron's is 67°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.