Gutters, roofing, siding and windows in ZIP code 55940, Hayfield, MN

• Gutters in ZIP code 55940

  Dodge County averages 37.5 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 ZIP code 55940

  10 of the 32 hail events on record within 10 miles of the center of ZIP code 55940 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 ZIP code 55940

  The strongest thunderstorm wind on record within 10 miles of the center of ZIP code 55940 from 2016 through September 22, 2025 was 75 mph. The National Weather Service counts a thunderstorm wind of 58 mph or more as severe.

• Windows in ZIP code 55940

  62% of homes in ZIP code 55940 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.

ZIP code 55940 is filed here under Hayfield, in Dodge County, Minnesota; its center is about 19 miles southwest of our Rochester office. ZIP code 55940 also extends into Olmsted County. Of the cities and towns on our pages, ZIP code 55940 covers only Hayfield.

Source: Census ZIP Code Tabulation Area, county and place boundaries (a ZIP code can also take in land outside any city or town).

ZIP code 55940 has 1,186 housing units, and 82% of them are single-family detached homes (American Community Survey 2023, 5-year). Another 4% are attached homes such as townhomes. Mobile homes make up 3% of the housing units.

The median home in ZIP code 55940 was built in 1971. 62% of homes in ZIP code 55940 were built before 1980, and 20% were built in 2000 or later. The most common building period is 1939 or earlier, with 377 homes.

78% of occupied homes in ZIP code 55940 are owner-occupied. The median owner-occupied home in ZIP code 55940 is valued at $240,700. Among occupied homes in ZIP code 55940, 49% heat with utility gas, 8% with electricity, 41% with bottled or tank gas, 1% with fuel oil and 1% with wood.

Source: American Community Survey 2023, 5-year (tables B25024, B25034, B25035, B25003, B25077, B25040), for ZIP Code Tabulation Area 55940.

The nearest other ZIP codes we serve, measured center to center, are 55944 in Kasson (7.3 miles northeast), 55927 in Dodge Center (10 miles north), 55918 in Brownsdale (11 miles south), 55926 in Dexter (12 miles southeast), 55920 in Byron (12 miles northeast) and 55917 in Blooming Prairie (13 miles west). The table sets ZIP code 55940 beside the 8 ZIP codes nearest to it, using the same Census figures for each.

Source: American Community Survey 2023, 5-year, by ZIP Code Tabulation Area; distances are straight lines between ZIP code centers.

The NOAA Storm Events Database records 32 hail events, 26 thunderstorm-wind events and 2 tornadoes within 10 miles of the center of ZIP code 55940 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 2.75 inches on June 4, 2019, near Kasson. 10 of those hail events had hail 1.5 inches or larger.

The closest event to the center of ZIP code 55940 was 58 mph wind on May 21, 2024, 2.1 miles away near Hayfield. The most recent hail event within 10 miles of the center of ZIP code 55940 was on April 28, 2025: 1 in hail near Kasson. The most recent thunderstorm-wind event within 10 miles of the center of ZIP code 55940 was on July 28, 2025, near Kasson. The strongest thunderstorm wind recorded within 10 miles of the center of ZIP code 55940 in that period was 75 mph. The busiest year was 2019, with 14 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).

This page is filed under Hayfield, which is in Dodge County; the ratings below are that county's. Dodge County scores 59.5 of 100 for hail in FEMA's National Risk Index, which ranks 58th of 87 Minnesota counties. Dodge County scores 43.7 of 100 for strong wind in FEMA's National Risk Index, which ranks 55th of 87 Minnesota counties. Dodge County scores 30.3 of 100 for winter weather in FEMA's National Risk Index, which ranks 79th of 87 Minnesota counties. Of the perils listed here, the highest score in Dodge County is for tornado, at 83.3 of 100.

Dodge County averages 37.5 inches of precipitation a year (NOAA 1991–2020 normals). The average annual temperature in Dodge County is 44.5°F.

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

Our Rochester office is at 3470 55th St NW, Rochester, MN 55901, about 19 miles from the center of ZIP code 55940. Its hours are Monday–Friday 7:00 AM–7:00 PM. You can reach that office at (507) 606-2707.

• Rochester office: address, hours and map