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Weather & Climate in Marine on St. Croix, MN
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Marine on St. Croix experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 18°F in January while summers reach 75°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 35.1 inches. Air quality is rated Good with a median AQI of 36. The city sits at an elevation of 847 feet.
Temperature
18°F Jan (-8°C)
75°F Jul (24°C)
| Annual Average | 48.4°F |
| 10% below US avg | |
| January Average | 18°F (-8°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 270 days/yr |
Geography
| Elevation | 847 ft (258 m) |
| Area | 4.2 sq mi (10.8 km²) |
| Population Density | 182/sq mi |
| Coordinates | 45.1909°N, 92.7784°W |
| Timezone | America/Chicago |
| County | Washington County County |
| Nearest Airport | New Richmond Regional (RNH) 12 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 83.9 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 97.1 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Relatively High |
| Strong Wind | Very High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Very Low |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively 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: M2.8.
| Apr 25, 2017 | Near Mankato, Minnesota | M2.8 | 148 km | 0 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
423 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 57 fatalities, 1,024 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jun 4, 1958 | EF5 | 48 km | 33.7 mi | 21 |
| Jul 3, 1983 | EF4 | 43 km | 1.0 mi | 0 |
| Jul 30, 1977 | EF4 | 98 km | 19.0 mi | 0 |
| May 6, 1965 | EF4 | 89 km | 12.3 mi | 3 |
| May 6, 1965 | EF4 | 43 km | 6.8 mi | 3 |
| May 6, 1965 | EF4 | 53 km | 17.3 mi | 6 |
| May 6, 1965 | EF4 | 70 km | 6.9 mi | 0 |
| May 21, 1957 | EF4 | 44 km | 9.2 mi | 0 |
| Sep 24, 2019 | EF3 | 93 km | 7.0 mi | 0 |
| May 16, 2017 | EF3 | 49 km | 82.5 mi | 1 |
| May 25, 2008 | EF3 | 21 km | 6.0 mi | 1 |
| Jun 18, 2001 | EF3 | 66 km | 34.0 mi | 2 |
| Jul 1, 1997 | EF3 | 98 km | 5.0 mi | 0 |
| Jul 27, 1987 | EF3 | 69 km | 30.0 mi | 0 |
| Jul 23, 1987 | EF3 | 55 km | 5.0 mi | 0 |
| Apr 26, 1984 | EF3 | 40 km | 5.5 mi | 1 |
| Jun 14, 1981 | EF3 | 57 km | 16.2 mi | 1 |
| Jul 30, 1977 | EF3 | 44 km | 9.1 mi | 0 |
| May 24, 1958 | EF3 | 14 km | 59.4 mi | 0 |
| Jun 23, 1952 | EF3 | 28 km | 18.2 mi | 2 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNIT 4 (5,887 acres, 2002).
| Year | Name | Acres Burned | Distance |
| 2002 | UNIT 4 | 5,887 | 86 km |
| 2003 | UNITS 37 38 39 A | 4,879 | 77 km |
| 1998 | UNITS 1617 | 4,649 | 81 km |
| 2005 | RX HFR 05 | 4,253 | 81 km |
| 2009 | BU9 | 4,112 | 86 km |
| 2007 | WUI 07 - UNIT 36 | 4,025 | 77 km |
| 2000 | UNIT 25 | 3,412 | 77 km |
| 2009 | BU11 | 3,242 | 83 km |
| 1997 | BIG | 2,987 | 80 km |
| 2009 | UNNAMED | 2,904 | 27 km |
| 2003 | UNITS 34 33 W | 2,637 | 78 km |
| 2024 | UNIT 8E RX | 2,551 | 84 km |
| 1992 | SHARPTAIL | 2,288 | 78 km |
| 2024 | RX-86_FY23 | 2,187 | 78 km |
| 2010 | WUI 10 UNIT D | 2,042 | 78 km |
| 1996 | UNNAMED | 1,906 | 76 km |
| 2000 | UNNAMED | 1,850 | 64 km |
| 2006 | UNIT 4 | 1,732 | 85 km |
| 2009 | UNIT 23 24 26 | 1,644 | 80 km |
| 1995 | ANTLER | 1,603 | 78 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 18°F (-8°C) | 0.9 in | |
| February | 18°F (-8°C) | 0.8 in | Driest |
| March | 30°F (-1°C) | 1.6 in | |
| April | 45°F (7°C) | 2.6 in | |
| May | 58°F (14°C) | 3.4 in | |
| June | 67°F (19°C) | 4.6 in | Wettest |
| July | 75°F (24°C) | 3.8 in | Warmest |
| August | 69°F (20°C) | 4.3 in | |
| September | 59°F (15°C) | 3.6 in | |
| October | 48°F (9°C) | 2.5 in | |
| November | 32°F (-0°C) | 1.5 in | |
| December | 17°F (-8°C) | 1.1 in | Coldest |
Marine on St. Croix has a seasonal temperature swing of 58°F / from 17°F in December to 75°F in July. Total annual precipitation is 30.6 inches, with June being the wettest month (4.6") and February the driest (0.8").