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Weather & Climate in Port Austin, MI
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Port Austin experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 23°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 32.4 inches. Air quality is rated Good with a median AQI of 38. The city sits at an elevation of 603 feet.
Temperature
23°F Jan (-5°C)
69°F Jul (21°C)
| Annual Average | 45.9°F |
| 15% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 69°F (21°C) |
| Sunny Days | 270 days/yr |
Geography
| Elevation | 603 ft (184 m) |
| Area | 1.0 sq mi (2.7 km²) |
| Population Density | 683/sq mi |
| Coordinates | 44.0426°N, 82.9951°W |
| Timezone | America/Detroit |
| County | Huron County County |
| Nearest Airport | Mbs International (MBS) 65 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 59.0 / 100 |
| Social Vulnerability | 58.8 / 100 |
| Community Resilience | 90.2 / 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 | Relatively Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | No Rating |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
| Coastal Flood | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M2.5.
| May 23, 2022 | 2 km NNW of Corunna, Canada | M2.5 | 135 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
114 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 5 fatalities, 52 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jun 21, 1996 | EF3 | 100 km | 1.0 mi | 0 |
| Mar 27, 1991 | EF3 | 97 km | 21.0 mi | 0 |
| Mar 27, 1991 | EF3 | 84 km | 35.0 mi | 0 |
| Sep 2, 1984 | EF3 | 95 km | 15.6 mi | 0 |
| Jun 12, 1984 | EF3 | 91 km | 48.0 mi | 0 |
| Mar 30, 1976 | EF3 | 79 km | 6.4 mi | 1 |
| Mar 30, 1976 | EF3 | 98 km | 11.4 mi | 0 |
| Jun 8, 1953 | EF3 | 94 km | 1.8 mi | 0 |
| Jun 26, 2021 | EF2 | 5 km | 6.8 mi | 0 |
| Jul 13, 1995 | EF2 | 90 km | 5.0 mi | 0 |
| Apr 24, 1993 | EF2 | 91 km | 7.0 mi | 0 |
| Aug 7, 1984 | EF2 | 88 km | 0.4 mi | 0 |
| Jun 15, 1982 | EF2 | 80 km | 6.0 mi | 0 |
| Jul 4, 1977 | EF2 | 55 km | 2.5 mi | 0 |
| Mar 30, 1976 | EF2 | 83 km | 4.9 mi | 0 |
| Jul 4, 1974 | EF2 | 45 km | 5.7 mi | 0 |
| Apr 12, 1974 | EF2 | 76 km | 0.8 mi | 0 |
| Jul 31, 1973 | EF2 | 82 km | 2.3 mi | 0 |
| May 24, 1971 | EF2 | 70 km | 10.4 mi | 0 |
| Apr 11, 1965 | EF2 | 73 km | 9.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 1.5 m (5 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1952 | LAKE HURON, MI | Avalanche | 1.5 m | - | 115 km |
Source: NOAA/NCEI Historical Tsunami Database.
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: BRITTLE (5,912 acres, 2021).
| Year | Name | Acres Burned | Distance |
| 2021 | BRITTLE | 5,912 | 68 km |
| 2014 | UNNAMED | 3,759 | 73 km |
| 2018 | BRITTLE 04/30/2018 | 3,484 | 73 km |
| 2019 | UNNAMED | 2,349 | 70 km |
| 2016 | UNNAMED | 1,796 | 71 km |
| 2021 | UNNAMED | 1,751 | 52 km |
| 1984 | RIVER ROAD | 1,693 | 53 km |
| 2017 | BRITTLE 20 AND 23 RX | 1,557 | 71 km |
| 2015 | UNNAMED | 1,434 | 68 km |
| 2015 | UNNAMED | 1,276 | 74 km |
| 2016 | UNNAMED | 1,217 | 65 km |
| 2015 | UNNAMED | 1,168 | 68 km |
| 2010 | BRITTLE FUELS BLOCK 10 | 1,076 | 74 km |
| 2016 | MEMORABLE RX | 946 | 65 km |
| 2018 | BRITTLE 05/05/2018 | 867 | 65 km |
| 2019 | UNNAMED | 642 | 66 km |
| 2007 | GALION | 637 | 60 km |
| 2018 | KIMBERLIN OAK 5/8/2018 | 564 | 82 km |
| 2019 | UNNAMED | 564 | 74 km |
| 2019 | MEMORABLE MIDDLE | 550 | 64 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 2.1 in | Coldest |
| February | 24°F (-4°C) | 1.7 in | Driest |
| March | 31°F (-1°C) | 2.3 in | |
| April | 41°F (5°C) | 2.6 in | |
| May | 53°F (11°C) | 2.6 in | |
| June | 62°F (17°C) | 2.8 in | |
| July | 69°F (21°C) | 2.7 in | Warmest |
| August | 67°F (20°C) | 3.3 in | |
| September | 61°F (16°C) | 3.6 in | Wettest |
| October | 51°F (10°C) | 2.7 in | |
| November | 40°F (4°C) | 2.8 in | |
| December | 29°F (-1°C) | 2.5 in |
Port Austin has a seasonal temperature swing of 46°F / from 23°F in January to 69°F in July. Total annual precipitation is 31.5 inches, with September being the wettest month (3.6") and February the driest (1.7").