Sault Ste. Marie weather in August: Sault Ste. Marie, Michigan: normal highs, lows, rain and records for August
Sault Ste. Marie in August has a normal high of 76°F and a normal low of 55°F, a daily mean of 66°F, falling from 77°F on the 1st to 74°F by the 31st. Measurable precipitation falls on 11 days in a normal August, 3.19 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 24°C and low of 13°C, 81 mm of precipitation in August.
- NOAA stationSault Ste Marie Sanderson Field
- Station IDUSW00014847
- Location46.48°N 84.36°W
- Elevation722 ft (220 m)
- Population13,288
- Jan 24° 8°
- Feb 26° 9°
- Mar 36° 18°
- Apr 49° 30°
- May 63° 41°
- Jun 73° 50°
- Jul 77° 55°
- Aug 76° 55°
- Sep 68° 49°
- Oct 54° 39°
- Nov 41° 28°
- Dec 31° 17°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Sault Ste. Marie in August?
The normal high is 76°F and the normal low 55°F, for a daily mean of 65.6°F. August is 0.4°F cooler than July and 7.2°F warmer than September. August is the 2nd warmest month of the year in Sault Ste. Marie and the 4th wettest. Across the month the normal high falls 3°F, from 77°F on August 1 to 74°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 63°F and 68°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 |
|---|---|---|---|---|
| August 1 | 77°F | 56°F | 35% | 20% |
| August 8 | 77°F | 56°F | 35% | 21% |
| August 15 | 76°F | 56°F | 35% | 21% |
| August 22 | 75°F | 55°F | 36% | 23% |
| August 31 | 74°F | 53°F | 38% | 24% |
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 | 77°F | 56°F | 35% | 20% | 14 h 50 min |
| August 2 | 77°F | 56°F | 35% | 20% | 14 h 50 min |
| August 3 | 77°F | 56°F | 35% | 20% | 14 h 50 min |
| August 4 | 77°F | 56°F | 35% | 20% | 14 h 50 min |
| August 5 | 77°F | 56°F | 35% | 20% | 14 h 40 min |
| August 6 | 77°F | 56°F | 34% | 20% | 14 h 40 min |
| August 7 | 77°F | 56°F | 34% | 21% | 14 h 40 min |
| August 8 | 77°F | 56°F | 35% | 21% | 14 h 30 min |
| August 9 | 77°F | 56°F | 35% | 21% | 14 h 30 min |
| August 10 | 77°F | 56°F | 35% | 21% | 14 h 30 min |
| August 11 | 77°F | 56°F | 35% | 21% | 14 h 30 min |
| August 12 | 77°F | 56°F | 35% | 21% | 14 h 20 min |
| August 13 | 76°F | 56°F | 35% | 21% | 14 h 20 min |
| August 14 | 76°F | 56°F | 35% | 21% | 14 h 20 min |
| August 15 | 76°F | 56°F | 35% | 21% | 14 h 10 min |
| August 16 | 76°F | 56°F | 35% | 22% | 14 h 10 min |
| August 17 | 76°F | 56°F | 35% | 22% | 14 h 10 min |
| August 18 | 76°F | 56°F | 35% | 22% | 14 h 10 min |
| August 19 | 76°F | 55°F | 35% | 22% | 14 h |
| August 20 | 76°F | 55°F | 35% | 22% | 14 h |
| August 21 | 75°F | 55°F | 35% | 22% | 14 h |
| August 22 | 75°F | 55°F | 36% | 23% | 13 h 50 min |
| August 23 | 75°F | 55°F | 36% | 23% | 13 h 50 min |
| August 24 | 75°F | 55°F | 36% | 23% | 13 h 50 min |
| August 25 | 75°F | 55°F | 36% | 23% | 13 h 40 min |
| August 26 | 75°F | 54°F | 36% | 23% | 13 h 40 min |
| August 27 | 74°F | 54°F | 37% | 23% | 13 h 40 min |
| August 28 | 74°F | 54°F | 37% | 24% | 13 h 40 min |
| August 29 | 74°F | 54°F | 37% | 24% | 13 h 30 min |
| August 30 | 74°F | 54°F | 37% | 24% | 13 h 30 min |
| August 31 | 74°F | 53°F | 38% | 24% | 13 h 30 min |
- Normal high
- 76°FAugust average
- Normal low
- 55°FAugust average
- Precipitation
- 3.19 inmonth total
- Days with precipitation
- 110.01 inch or more
- Daylight
- 14 h 50 min to 13 h 30 minAugust 1 to August 31
- Days at 70°F or more
- 25
- Days at 80°F or more
- 8
- Sunshine
- 75%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014847; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Sault Ste. Marie in August?
On a given August day the chance of 0.01 inch or more is 35% on average, highest around August 31 (38%). In all, 3.19 in falls on 11 days of a normal August, 1 of them with an inch or more.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014847.
How humid and windy is Sault Ste. Marie in August?
At 3 p.m. the normal temperature is 71°F with 59% relative humidity and a dew point of 56°F; at 6 a.m. it is 56°F with 92% humidity. The wind averages 6.6 mph, most often from the west in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 56°F | 54°F | 92% | 4.7 mph | – |
| 9 a.m. | 63°F | 57°F | 81% | 6.4 mph | – |
| noon | 69°F | 56°F | 64% | 8.9 mph | 50% |
| 3 p.m. | 71°F | 56°F | 59% | 10.1 mph | 59% |
| 6 p.m. | 67°F | 56°F | 66% | 9.1 mph | 63% |
| 9 p.m. | 61°F | 56°F | 82% | 5.6 mph | 68% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014847. 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 August in Sault Ste. Marie?
The warmest August temperature on Sault Ste. Marie's official record (since 1888) is 98°F, on August 6, 1947; the coldest is 29°F, on August 29, 1982. The wettest August brought 9.48 in (1974).
The August mean against the 1991-2020 normal of 65.6°F: 2021 70.7°F (+5.1), 2022 66.7°F (+1.1), 2023 64.7°F (−0.9), 2024 67.3°F (+1.7), 2025 65.5°F (−0.1), 2026 65.2°F (−0.4). 3 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 70.7°F | +5.1°F | 2.57 in |
| 2022 | 66.7°F | +1.1°F | 3.28 in |
| 2023 | 64.7°F | −0.9°F | 3.63 in |
| 2024 | 67.3°F | +1.7°F | 4.02 in |
| 2025 | 65.5°F | −0.1°F | 4.87 in |
| 2026 | 65.2°F | −0.4°F | 1.88 in |
Source: records: ACIS, NWS threaded record ANJthr; recent months: ACIS, station USW00014847. Records and recent months use complete months only.
How does August in Sault Ste. Marie 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; Sault Ste. Marie's is 76°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Sault Ste. Marie in July77°F by day, 55°F at night
- Sault Ste. Marie in September68°F by day, 49°F at night
- Sault Ste. Marie through the yearEvery month, frost dates, records and recent years
- Michigan in AugustThe statewide normal and the warmest and coolest places
- Morenci: Michigan's warmest Augustnormal high 83°F