Pontiac weather in May: Pontiac, Michigan: normal highs, lows, rain and records for May
Pontiac in May has a normal high of 69°F and a normal low of 48°F, a daily mean of 58°F, rising from 63°F on the 1st to 74°F by the 31st. Measurable precipitation falls on 13 days in a normal May, 3.68 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 21°C and low of 9°C, 93 mm of precipitation in May.
- NOAA stationPontiac Oakland County International Airport
- Station IDUSW00094817
- Location42.66°N 83.42°W
- Elevation976 ft (298 m)
- From the center7 miles
- Population62,528
- Jan 30° 17°
- Feb 33° 18°
- Mar 43° 26°
- Apr 57° 36°
- May 69° 48°
- Jun 78° 58°
- Jul 82° 62°
- Aug 80° 61°
- Sep 73° 53°
- Oct 60° 42°
- Nov 46° 32°
- Dec 35° 23°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Pontiac in May?
The normal high is 69°F and the normal low 48°F, for a daily mean of 58.3°F. May is 11.8°F warmer than April and 9.7°F cooler than June. May is the 5th warmest month of the year in Pontiac and the wettest. Across the month the normal high rises 11°F, from 63°F on May 1 to 74°F on May 31. From one year to the next May's mean temperature typically moves about 3.4°F either way (NOAA's standard deviation), so roughly two Mays in three average between 55°F and 62°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 | 63°F | 42°F | 41% | 24% |
| May 8 | 66°F | 45°F | 43% | 25% |
| May 15 | 69°F | 47°F | 43% | 25% |
| May 22 | 71°F | 50°F | 42% | 25% |
| May 31 | 74°F | 53°F | 42% | 25% |
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 | 63°F | 42°F | 41% | 24% | 14 h |
| May 2 | 64°F | 42°F | 42% | 24% | 14 h 10 min |
| May 3 | 64°F | 43°F | 42% | 24% | 14 h 10 min |
| May 4 | 65°F | 43°F | 42% | 24% | 14 h 10 min |
| May 5 | 65°F | 44°F | 42% | 24% | 14 h 10 min |
| May 6 | 65°F | 44°F | 42% | 24% | 14 h 10 min |
| May 7 | 66°F | 44°F | 42% | 25% | 14 h 20 min |
| May 8 | 66°F | 45°F | 43% | 25% | 14 h 20 min |
| May 9 | 67°F | 45°F | 43% | 25% | 14 h 20 min |
| May 10 | 67°F | 45°F | 43% | 25% | 14 h 20 min |
| May 11 | 67°F | 46°F | 43% | 25% | 14 h 30 min |
| May 12 | 68°F | 46°F | 43% | 25% | 14 h 30 min |
| May 13 | 68°F | 47°F | 43% | 25% | 14 h 30 min |
| May 14 | 68°F | 47°F | 43% | 25% | 14 h 30 min |
| May 15 | 69°F | 47°F | 43% | 25% | 14 h 40 min |
| May 16 | 69°F | 48°F | 43% | 25% | 14 h 40 min |
| May 17 | 69°F | 48°F | 43% | 25% | 14 h 40 min |
| May 18 | 70°F | 48°F | 43% | 25% | 14 h 40 min |
| May 19 | 70°F | 49°F | 42% | 25% | 14 h 40 min |
| May 20 | 70°F | 49°F | 42% | 25% | 14 h 50 min |
| May 21 | 71°F | 50°F | 42% | 25% | 14 h 50 min |
| May 22 | 71°F | 50°F | 42% | 25% | 14 h 50 min |
| May 23 | 71°F | 50°F | 42% | 25% | 14 h 50 min |
| May 24 | 72°F | 51°F | 42% | 25% | 14 h 50 min |
| May 25 | 72°F | 51°F | 42% | 25% | 14 h 50 min |
| May 26 | 72°F | 51°F | 42% | 25% | 15 h |
| May 27 | 73°F | 52°F | 42% | 25% | 15 h |
| May 28 | 73°F | 52°F | 42% | 25% | 15 h |
| May 29 | 73°F | 52°F | 42% | 25% | 15 h |
| May 30 | 74°F | 53°F | 42% | 25% | 15 h |
| May 31 | 74°F | 53°F | 42% | 25% | 15 h |
- Normal high
- 69°FMay average
- Normal low
- 48°FMay average
- Precipitation
- 3.68 inmonth total
- Days with precipitation
- 130.01 inch or more
- Nights at 32°F or colder
- 1
- Daylight
- 14 h to 15 hMay 1 to May 31
- Days at 70°F or more
- 15
- Days at 80°F or more
- 6
- Sunshine
- 70%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094817; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Pontiac in May?
On a given May day the chance of 0.01 inch or more is 42% on average, highest around May 11 (43%). In all, 3.68 in falls on 13 days of a normal May, 1 of them with an inch or more.
In a normal May in Pontiac, 1 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094817.
What are the records for May in Pontiac?
The warmest May temperature on this station's record (since 1998) is 93°F, on May 28, 2012; the coldest is 28°F, on May 13, 2020. The wettest May brought 7.24 in (2004).
The May mean against the 1991-2020 normal of 58.3°F: 2021 56.9°F (−1.4), 2022 61.5°F (+3.2), 2023 57.4°F (−0.9), 2024 63.0°F (+4.7), 2025 56.2°F (−2.1), 2026 56.9°F (−1.4). 2 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 56.9°F | −1.4°F | 2.11 in |
| 2022 | 61.5°F | +3.2°F | 2.15 in |
| 2023 | 57.4°F | −0.9°F | 0.75 in |
| 2024 | 63.0°F | +4.7°F | 2.77 in |
| 2025 | 56.2°F | −2.1°F | 2.61 in |
| 2026 | 56.9°F | −1.4°F | – |
Source: records: ACIS, station USW00094817; recent months: ACIS, station USW00094817. Records and recent months use complete months only.
How does May in Pontiac 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; Pontiac's is 69°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.