Sault Ste. Marie weather in September: Sault Ste. Marie, Michigan: normal highs, lows, rain and records for September
Sault Ste. Marie in September has a normal high of 68°F and a normal low of 49°F, a daily mean of 58°F, falling from 73°F on the 1st to 62°F by the 30th. Measurable precipitation falls on 13 days in a normal September, 3.93 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 20°C and low of 9°C, 100 mm of precipitation in September.
- 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 September?
The normal high is 68°F and the normal low 49°F, for a daily mean of 58.4°F. September is 7.2°F cooler than August and 12.1°F warmer than October. September is the 4th warmest month of the year in Sault Ste. Marie and the 2nd wettest. Across the month the normal high falls 11°F, from 73°F on September 1 to 62°F on September 30. From one year to the next September's mean temperature typically moves about 3.0°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 55°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 50%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 73°F | 53°F | 38% | 25% |
| September 8 | 71°F | 51°F | 41% | 26% |
| September 15 | 69°F | 49°F | 44% | 28% |
| September 22 | 66°F | 47°F | 47% | 29% |
| September 30 | 62°F | 44°F | 50% | 31% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 73°F | 53°F | 38% | 25% | 13 h 20 min |
| September 2 | 73°F | 53°F | 38% | 25% | 13 h 20 min |
| September 3 | 73°F | 53°F | 39% | 25% | 13 h 20 min |
| September 4 | 72°F | 52°F | 39% | 25% | 13 h 10 min |
| September 5 | 72°F | 52°F | 39% | 25% | 13 h 10 min |
| September 6 | 72°F | 52°F | 40% | 26% | 13 h 10 min |
| September 7 | 72°F | 51°F | 40% | 26% | 13 h |
| September 8 | 71°F | 51°F | 41% | 26% | 13 h |
| September 9 | 71°F | 51°F | 41% | 26% | 13 h |
| September 10 | 70°F | 51°F | 42% | 27% | 12 h 50 min |
| September 11 | 70°F | 50°F | 42% | 27% | 12 h 50 min |
| September 12 | 70°F | 50°F | 42% | 27% | 12 h 50 min |
| September 13 | 69°F | 50°F | 43% | 27% | 12 h 40 min |
| September 14 | 69°F | 49°F | 43% | 27% | 12 h 40 min |
| September 15 | 69°F | 49°F | 44% | 28% | 12 h 40 min |
| September 16 | 68°F | 49°F | 44% | 28% | 12 h 30 min |
| September 17 | 68°F | 48°F | 44% | 28% | 12 h 30 min |
| September 18 | 67°F | 48°F | 45% | 28% | 12 h 30 min |
| September 19 | 67°F | 48°F | 45% | 29% | 12 h 20 min |
| September 20 | 66°F | 47°F | 46% | 29% | 12 h 20 min |
| September 21 | 66°F | 47°F | 46% | 29% | 12 h 20 min |
| September 22 | 66°F | 47°F | 47% | 29% | 12 h 20 min |
| September 23 | 65°F | 46°F | 47% | 30% | 12 h 10 min |
| September 24 | 65°F | 46°F | 47% | 30% | 12 h 10 min |
| September 25 | 64°F | 46°F | 48% | 30% | 12 h 10 min |
| September 26 | 64°F | 45°F | 48% | 30% | 12 h |
| September 27 | 63°F | 45°F | 49% | 30% | 12 h |
| September 28 | 63°F | 45°F | 49% | 31% | 12 h |
| September 29 | 62°F | 44°F | 49% | 31% | 11 h 50 min |
| September 30 | 62°F | 44°F | 50% | 31% | 11 h 50 min |
- Normal high
- 68°FSeptember average
- Normal low
- 49°FSeptember average
- Precipitation
- 3.93 inmonth total
- Days with precipitation
- 130.01 inch or more
- Daylight
- 13 h 20 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 12
- Days at 80°F or more
- 2
- Sunshine
- 71%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 September?
On a given September day the chance of 0.01 inch or more is 44% on average, highest around September 30 (50%). In all, 3.93 in falls on 13 days of a normal September, 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 September?
At 3 p.m. the normal temperature is 58°F with 61% relative humidity and a dew point of 45°F; at 6 a.m. it is 47°F with 88% humidity. The wind averages 7.1 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. | 47°F | 43°F | 88% | 5.5 mph | – |
| 9 a.m. | 51°F | 45°F | 82% | 7.2 mph | – |
| noon | 57°F | 45°F | 66% | 9.2 mph | 41% |
| 3 p.m. | 58°F | 45°F | 61% | 10.4 mph | 44% |
| 6 p.m. | 55°F | 45°F | 70% | 7.9 mph | 51% |
| 9 p.m. | 50°F | 45°F | 81% | 6.2 mph | 56% |
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 September in Sault Ste. Marie?
The warmest September temperature on Sault Ste. Marie's official record (since 1888) is 95°F, on September 8, 1976; the coldest is 25°F, on September 25, 1947. The wettest September brought 9.35 in (1916); the snowiest, 2.7 inches (1956).
The September mean against the 1991-2020 normal of 58.4°F: 2021 59.9°F (+1.5), 2022 59.4°F (+1.0), 2023 61.5°F (+3.1), 2024 64.0°F (+5.6), 2025 59.6°F (+1.2), 2026 60.6°F (+2.2). 6 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 59.9°F | +1.5°F | 3.13 in |
| 2022 | 59.4°F | +1.0°F | 2.15 in |
| 2023 | 61.5°F | +3.1°F | 0.95 in |
| 2024 | 64.0°F | +5.6°F | 1.92 in |
| 2025 | 59.6°F | +1.2°F | 3.45 in |
| 2026 | 60.6°F | +2.2°F | 0.79 in |
Source: records: ACIS, NWS threaded record ANJthr; recent months: ACIS, station USW00014847. Records and recent months use complete months only.
How does September in Sault Ste. Marie compare across Michigan?
Across the 140 places PlainClimate covers in Michigan, September normal highs run from 65°F in Munising to 76°F in Eau Claire; Sault Ste. Marie's is 68°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Sault Ste. Marie in August76°F by day, 55°F at night
- Sault Ste. Marie in October54°F by day, 39°F at night
- Sault Ste. Marie through the yearEvery month, frost dates, records and recent years
- Michigan in SeptemberThe statewide normal and the warmest and coolest places
- Eau Claire: Michigan's warmest Septembernormal high 76°F