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Weather & Climate in Iron River, MI

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Iron River has a cool climate with an average annual temperature of 39°F (4°C). Winters average 11°F in January while summers reach 64°F in July. The area gets 249 sunny days per year, above the national average. Annual precipitation totals 30.5 inches. The area receives 67.4 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 1,481 feet.

Temperature

11°F Jan (-12°C) 64°F Jul (18°C)
Annual Average38.5°F
29% below US avg
January Average11°F (-12°C)
July Average64°F (18°C)
Sunny Days249 days/yr

Geography

Elevation1,481 ft (451 m)
Area6.8 sq mi (17.5 km²)
Population Density446/sq mi
Coordinates46.0959°N, 88.6366°W
TimezoneAmerica/Detroit
CountyIron County County
Nearest AirportMarquette/Sawyer Regional (MQT)
61 miles away

Precipitation & Snow

Annual Rainfall 30.5"
20% below US avg
Snowfall 67.4"
Wettest Month (Sep) 3.86"
Driest Month (Feb) 0.91"

Air Quality

AQI Median38.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score55.1 / 100
Social Vulnerability85.3 / 100
Community Resilience73.4 / 100

Hazard Breakdown

Tornado Very Low
Hurricane No Rating
Earthquake Very Low
Wildfire Very Low
Flood Very Low
Hail Relatively Moderate
Strong Wind Relatively Low
Heat Wave Very Low
Winter Weather Relatively Low
Lightning Relatively Low
Ice Storm Very Low
Drought Very Low
Cold Wave Relatively High
Landslide 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.

Jan 7, 2024 3 km NE of Mole Lake, Wisconsin M2.5 70 km 5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

83 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 3 fatalities, 36 injuries.

Date Rating Distance Path Fatalities
Jun 25, 1950 EF4 93 km 13.1 mi 2
May 28, 1991 EF3 98 km 10.0 mi 0
Jul 11, 1987 EF3 70 km 71.0 mi 0
Jul 4, 1986 EF3 64 km 24.3 mi 0
Jun 15, 2022 EF2 83 km 1.9 mi 0
Apr 10, 2011 EF2 53 km 12.0 mi 0
May 30, 1994 EF2 65 km 12.0 mi 0
May 28, 1991 EF2 80 km 12.0 mi 0
Jul 4, 1986 EF2 87 km 1.5 mi 0
Jun 14, 1981 EF2 36 km 2.6 mi 0
Jun 13, 1981 EF2 53 km 0.1 mi 0
Sep 16, 1972 EF2 72 km 66.2 mi 0
Jun 26, 1969 EF2 97 km 28.9 mi 0
Aug 22, 1968 EF2 67 km 0.3 mi 0
Jun 30, 1968 EF2 48 km 1.0 mi 0
Jul 8, 1959 EF2 61 km 1.0 mi 0
May 17, 1958 EF2 97 km 4.7 mi 0
Jun 15, 2022 EF1 77 km 8.5 mi 0
Jun 15, 2022 EF1 80 km 0.7 mi 0
Aug 9, 2020 EF1 63 km 5.9 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Wildfire History

8 wildfires (100+ acres) recorded within 100 km. Largest: MARQUETTE9 (4,224 acres, 1999).

Year Name Acres Burned Distance
1999 MARQUETTE9 4,224 66 km
1986 MARQUETTE13 2,491 95 km
2007 BARAGA BUMP 1,047 54 km
2009 FALLS 820 75 km
2009 PINERY 695 77 km
1986 MARQUETTE10 671 74 km
1986 MARQUETTE9 521 67 km
2022 LDF MARSH BURN 2022 503 99 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 11°F (-12°C) 1.1 in Coldest
February 14°F (-10°C) 0.9 in Driest
March 25°F (-4°C) 1.7 in
April 38°F (3°C) 2.2 in
May 52°F (11°C) 3.2 in
June 60°F (16°C) 3.7 in
July 64°F (18°C) 3.7 in Warmest
August 63°F (17°C) 3.8 in
September 55°F (13°C) 3.9 in Wettest
October 44°F (7°C) 2.9 in
November 30°F (-1°C) 2.1 in
December 16°F (-9°C) 1.4 in

Iron River has a seasonal temperature swing of 53°F / from 11°F in January to 64°F in July. Total annual precipitation is 30.6 inches, with September being the wettest month (3.9") and February the driest (0.9").

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