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Weather & Climate in Au Sable, MI
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Au Sable experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 22°F in January while summers reach 69°F in July. The area gets 270 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 32.3 inches. The area receives 49.2 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 38. The city sits at an elevation of 605 feet.
Temperature
22°F Jan (-6°C)
69°F Jul (21°C)
| Annual Average | 45.6°F |
| 16% below US avg | |
| January Average | 22°F (-6°C) |
| July Average | 69°F (21°C) |
| Sunny Days | 270 days/yr |
Geography
| Elevation | 605 ft (184 m) |
| Area | 2.1 sq mi (5.5 km²) |
| Population Density | 848/sq mi |
| Coordinates | 44.4126°N, 83.3390°W |
| Timezone | America/Detroit |
| County | Iosco County County |
| Nearest Airport | Alpena County Regional (APN) 47 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 37.8 / 100 |
| Social Vulnerability | 87.0 / 100 |
| Community Resilience | 72.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
| Coastal Flood | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tornado History
106 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 5 fatalities, 47 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Mar 27, 1991 | EF3 | 57 km | 21.0 mi | 0 |
| Mar 27, 1991 | EF3 | 51 km | 35.0 mi | 0 |
| Mar 30, 1976 | EF3 | 77 km | 11.4 mi | 0 |
| Mar 30, 1976 | EF3 | 50 km | 6.4 mi | 1 |
| Jun 8, 1953 | EF3 | 47 km | 1.8 mi | 0 |
| Jun 26, 2021 | EF2 | 50 km | 6.8 mi | 0 |
| Oct 18, 2007 | EF2 | 63 km | 0.3 mi | 0 |
| Oct 18, 2007 | EF2 | 80 km | 11.6 mi | 0 |
| Oct 18, 2007 | EF2 | 85 km | 4.1 mi | 0 |
| Jul 13, 1995 | EF2 | 70 km | 5.0 mi | 0 |
| May 28, 1995 | EF2 | 65 km | 1.0 mi | 0 |
| Apr 24, 1993 | EF2 | 69 km | 7.0 mi | 0 |
| Mar 27, 1991 | EF2 | 76 km | 6.0 mi | 0 |
| Jul 4, 1977 | EF2 | 49 km | 2.5 mi | 0 |
| Mar 30, 1976 | EF2 | 34 km | 4.9 mi | 0 |
| Jul 4, 1974 | EF2 | 82 km | 5.7 mi | 0 |
| Apr 12, 1974 | EF2 | 54 km | 0.8 mi | 0 |
| Jul 31, 1973 | EF2 | 79 km | 2.3 mi | 0 |
| Apr 11, 1965 | EF2 | 97 km | 9.0 mi | 0 |
| Jun 8, 1953 | EF2 | 25 km | 16.6 mi | 4 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: MERIDIAN BOUNDARY COMPLEX (MERIDIAN ROAD) (7,478 acres, 2010).
| Year | Name | Acres Burned | Distance |
| 2010 | MERIDIAN BOUNDARY COMPLEX (MERIDIAN ROAD) | 7,478 | 89 km |
| 1990 | CRAWFORD15 | 6,868 | 99 km |
| 2021 | BRITTLE | 5,912 | 27 km |
| 2006 | HUGHES LAKE FIRE | 5,285 | 75 km |
| 2000 | NO PABLO | 5,266 | 56 km |
| 2014 | UNNAMED | 3,759 | 32 km |
| 2018 | BRITTLE 04/30/2018 | 3,484 | 32 km |
| 2019 | UNNAMED | 2,349 | 27 km |
| 1987 | OGEMAW22 | 1,952 | 68 km |
| 2016 | UNNAMED | 1,796 | 28 km |
| 2021 | UNNAMED | 1,751 | 4 km |
| 1984 | RIVER ROAD | 1,693 | 5 km |
| 2017 | BRITTLE 20 AND 23 RX | 1,557 | 31 km |
| 1988 | OGEMAW13 | 1,547 | 73 km |
| 2015 | UNNAMED | 1,434 | 25 km |
| 1998 | OGEMAW16 | 1,391 | 78 km |
| 2015 | UNNAMED | 1,276 | 33 km |
| 2016 | UNNAMED | 1,217 | 23 km |
| 2015 | UNNAMED | 1,168 | 28 km |
| 2010 | BRITTLE FUELS BLOCK 10 | 1,076 | 32 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 22°F (-6°C) | 1.9 in | |
| February | 21°F (-6°C) | 1.3 in | Coldest, Driest |
| March | 30°F (-1°C) | 2.1 in | |
| April | 42°F (6°C) | 2.5 in | |
| May | 54°F (12°C) | 2.7 in | |
| June | 63°F (17°C) | 3.0 in | |
| July | 69°F (21°C) | 2.8 in | Warmest |
| August | 66°F (19°C) | 3.4 in | |
| September | 59°F (15°C) | 3.4 in | Wettest |
| October | 48°F (9°C) | 2.4 in | |
| November | 37°F (3°C) | 2.4 in | |
| December | 26°F (-3°C) | 2.1 in |
Au Sable has a seasonal temperature swing of 48°F / from 21°F in February to 69°F in July. Total annual precipitation is 29.9 inches, with September being the wettest month (3.4") and February the driest (1.3").