Port Huron weather in August: Port Huron, Michigan: normal highs, lows, rain and records for August
Port Huron in August has a normal high of 80°F and a normal low of 64°F, a daily mean of 72°F, falling from 81°F on the 1st to 78°F by the 31st. Measurable precipitation falls on 10 days in a normal August, 3.14 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 27°C and low of 18°C, 80 mm of precipitation in August.
- 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 August?
The normal high is 80°F and the normal low 64°F, for a daily mean of 71.8°F. August is 1.5°F cooler than July and 6.8°F warmer than September. August is the 2nd warmest month of the year in Port Huron and the 6th wettest. Across the month the normal high falls 3°F, from 81°F on August 1 to 78°F on August 31. From one year to the next August's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 69°F and 74°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 34%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 81°F | 66°F | 34% | 22% |
| August 8 | 81°F | 65°F | 34% | 21% |
| August 15 | 80°F | 64°F | 33% | 21% |
| August 22 | 79°F | 63°F | 33% | 20% |
| August 31 | 78°F | 62°F | 33% | 20% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 81°F | 66°F | 34% | 22% | 14 h 30 min |
| August 2 | 81°F | 66°F | 34% | 22% | 14 h 30 min |
| August 3 | 81°F | 66°F | 34% | 22% | 14 h 30 min |
| August 4 | 81°F | 65°F | 34% | 22% | 14 h 30 min |
| August 5 | 81°F | 65°F | 34% | 21% | 14 h 20 min |
| August 6 | 81°F | 65°F | 34% | 21% | 14 h 20 min |
| August 7 | 81°F | 65°F | 34% | 21% | 14 h 20 min |
| August 8 | 81°F | 65°F | 34% | 21% | 14 h 20 min |
| August 9 | 81°F | 65°F | 34% | 21% | 14 h 10 min |
| August 10 | 80°F | 65°F | 34% | 21% | 14 h 10 min |
| August 11 | 80°F | 65°F | 34% | 21% | 14 h 10 min |
| August 12 | 80°F | 65°F | 34% | 21% | 14 h 10 min |
| August 13 | 80°F | 65°F | 34% | 21% | 14 h |
| August 14 | 80°F | 65°F | 33% | 21% | 14 h |
| August 15 | 80°F | 64°F | 33% | 21% | 14 h |
| August 16 | 80°F | 64°F | 33% | 20% | 14 h |
| August 17 | 80°F | 64°F | 33% | 20% | 13 h 50 min |
| August 18 | 80°F | 64°F | 33% | 20% | 13 h 50 min |
| August 19 | 80°F | 64°F | 33% | 20% | 13 h 50 min |
| August 20 | 79°F | 64°F | 33% | 20% | 13 h 50 min |
| August 21 | 79°F | 64°F | 33% | 20% | 13 h 40 min |
| August 22 | 79°F | 63°F | 33% | 20% | 13 h 40 min |
| August 23 | 79°F | 63°F | 33% | 20% | 13 h 40 min |
| August 24 | 79°F | 63°F | 33% | 20% | 13 h 40 min |
| August 25 | 79°F | 63°F | 33% | 20% | 13 h 30 min |
| August 26 | 79°F | 63°F | 33% | 20% | 13 h 30 min |
| August 27 | 78°F | 62°F | 33% | 20% | 13 h 30 min |
| August 28 | 78°F | 62°F | 33% | 20% | 13 h 20 min |
| August 29 | 78°F | 62°F | 33% | 20% | 13 h 20 min |
| August 30 | 78°F | 62°F | 33% | 20% | 13 h 20 min |
| August 31 | 78°F | 62°F | 33% | 20% | 13 h 20 min |
- Normal high
- 80°FAugust average
- Normal low
- 64°FAugust average
- Precipitation
- 3.14 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 2
- Daylight
- 14 h 30 min to 13 h 20 minAugust 1 to August 31
- Days at 70°F or more
- 30
- Days at 80°F or more
- 17
- Sunshine
- 79%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 August?
On a given August day the chance of 0.01 inch or more is 33% on average, highest around August 2 (34%). In all, 3.14 in falls on 10 days of a normal August, 1 of them with an inch or more.
In a normal August in Port Huron, 2 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00206680.
What are the records for August in Port Huron?
The warmest August temperature on this station's record (since 1931) is 102°F, on August 21, 1955; the coldest is 37°F, on August 25, 1942. The wettest August brought 10.61 in (1956).
The August mean against the 1991-2020 normal of 71.8°F: 2021 76.1°F (+4.3), 2022 74.1°F (+2.3), 2023 69.5°F (−2.3), 2024 71.6°F (−0.2), 2025 69.1°F (−2.7), 2026 70.4°F (−1.4). 2 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 76.1°F | +4.3°F | 1.94 in |
| 2022 | 74.1°F | +2.3°F | 4.26 in |
| 2023 | 69.5°F | −2.3°F | 4.67 in |
| 2024 | 71.6°F | −0.2°F | 3.15 in |
| 2025 | 69.1°F | −2.7°F | 2.95 in |
| 2026 | 70.4°F | −1.4°F | 3.74 in |
Source: records: ACIS, station USC00206680; recent months: ACIS, station USC00206680. Records and recent months use complete months only.
How does August in Port Huron compare across Michigan?
Across the 140 places PlainClimate covers in Michigan, August normal highs run from 72°F in Munising to 83°F in Morenci; Port Huron's is 80°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.