Gutters, roofing, siding and windows in Mahnomen, MN

• Gutters in Mahnomen

  St. Louis County averages 29.6 inches of precipitation a year (NOAA 1991–2020 normals). One inch of rain on 1,000 square feet of roof is about 623 gallons of water for the gutters to carry.

• Roofing in Mahnomen

  3 of the 28 hail events on record within 10 miles of Mahnomen from 2016 through March 31, 2026 had hail 1.5 inches or larger. The National Weather Service counts hail of 1 inch or larger as severe.

• Siding in Mahnomen

  The strongest thunderstorm wind on record within 10 miles of Mahnomen from 2016 through September 22, 2025 was 81 mph. The National Weather Service counts a thunderstorm wind of 58 mph or more as severe.

• Windows in Mahnomen

  66% of homes in ZIP code 55720 were built before 1980. A home built before 1980 was built before the energy codes in force today were written.

Source: NOAA Storm Events Database (hail events through March 31, 2026; thunderstorm-wind and tornado events through September 22, 2025); American Community Survey 2023, 5-year; NOAA 1991–2020 climate normals.

Our pages cover 1 ZIP code of Mahnomen: 55720. ZIP code 55720 has 7,136 households; its median home was built in 1970, and 76% of its housing units are single-family detached. The median home value in ZIP code 55720 is $213,300, and 71% of its occupied homes are owner-occupied.

• ZIP code 55720

Source: American Community Survey 2023, 5-year, by ZIP Code Tabulation Area (a ZIP code can extend beyond the city); ZIP list and address points from the Census address file.

The NOAA Storm Events Database records 28 hail events, 22 thunderstorm-wind events and no tornadoes within 10 miles of Mahnomen from 2016 through March 31, 2026 for hail and through September 22, 2025 for thunderstorm wind and tornadoes. The largest hail on record there in that period was 3 inches on September 16, 2021, near Mahnomen. 3 of those hail events had hail 1.5 inches or larger.

The closest event to the center of Mahnomen was 1 in hail on September 16, 2021, 3.4 miles away near Mahnomen. The most recent hail event within 10 miles of Mahnomen was on June 23, 2025: 1 in hail near Big Lake. The most recent thunderstorm-wind event within 10 miles of Mahnomen was on July 31, 2024, near Cloquet. The strongest thunderstorm wind recorded within 10 miles of Mahnomen in that period was 81 mph. The busiest year was 2022, with 13 events in all.

Source: NOAA Storm Events Database (hail events through March 31, 2026; thunderstorm-wind and tornado events through September 22, 2025).

Source: NOAA Storm Events Database (hail events through March 31, 2026; thunderstorm-wind and tornado events through September 22, 2025).

Source: NOAA Storm Events Database (hail events through March 31, 2026; thunderstorm-wind and tornado events through September 22, 2025).

St. Louis County has 103,924 housing units, and 74% of them are single-family detached homes (American Community Survey 2023, 5-year). Another 2% are attached homes such as townhomes. Mobile homes make up 4% of the housing units.

The median home in St. Louis County was built in 1962. 71% of homes in St. Louis County were built before 1980, and 14% were built in 2000 or later. The most common building period is 1939 or earlier, with 29,736 homes.

72% of occupied homes in St. Louis County are owner-occupied. The median owner-occupied home in St. Louis County is valued at $208,500. Among occupied homes in St. Louis County, 51% heat with utility gas, 18% with electricity, 17% with bottled or tank gas, 7% with fuel oil and 3% with wood.

• Year-built table and more on the St. Louis County page

Source: American Community Survey 2023, 5-year (tables B25024, B25034, B25035, B25003, B25077, B25040).

Mahnomen is in St. Louis County, so the county ratings below apply to it. St. Louis County scores 84 of 100 for hail in FEMA's National Risk Index, which ranks 16th of 87 Minnesota counties. St. Louis County scores 71.3 of 100 for strong wind in FEMA's National Risk Index, which ranks 37th of 87 Minnesota counties. St. Louis County scores 98 of 100 for winter weather in FEMA's National Risk Index, which ranks 1st of 87 Minnesota counties. Of the perils listed here, the highest score in St. Louis County is for cold wave, at 99.4 of 100.

St. Louis County averages 29.6 inches of precipitation a year (NOAA 1991–2020 normals). The average annual temperature in St. Louis County is 37.8°F.

Source: FEMA National Risk Index, 2026 release; rank among the state's counties computed from the scores; NOAA 1991–2020 climate normals.

The nearest other cities we serve, by straight-line distance, are Cloquet (4.2 miles), Big Lake (6.4 miles), Brookston (7 miles), Scanlon (7.1 miles), Esko (9.1 miles), Carlton (9.9 miles), Wrenshall (13 miles) and Hermantown (14 miles). The other St. Louis County communities we serve are Aurora, Babbitt, Biwabik, Brookston, Buhl, Chisholm, Cook, Duluth, Ely, Eveleth, Floodwood, Gilbert, Hermantown, Hibbing, Hoyt Lakes, Iron Junction, Kinney, Leonidas, McKinley, Meadowlands, Mountain Iron, Nett Lake, Orr, Proctor, Rice Lake, Soudan, Tower, Virginia and Winton.

• Cloquet 4.2 mi
• Big Lake 6.4 mi
• Brookston 7 mi
• Scanlon 7.1 mi
• Esko 9.1 mi
• Carlton 9.9 mi
• Wrenshall 13 mi
• Hermantown 14 mi
• Proctor 15 mi
• Mahtowa 15 mi

Our Duluth office is at 314 W Superior St #913, Duluth, MN 55802, about 21 miles from Mahnomen. Its hours are Monday–Friday 7:00 AM–7:00 PM. You can reach that office at (218) 833-2997.

• Duluth office: address, hours and map