Gutters, roofing, siding and windows in Byron, MN

• Gutters in Byron

  Olmsted County averages 36.7 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 Byron

  6 of the 70 hail events on record within 10 miles of Byron 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 Byron

  The strongest thunderstorm wind on record within 10 miles of Byron 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 Byron

  28% of homes in ZIP code 55920 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 Byron: 55920. ZIP code 55920 has 3,224 households; its median home was built in 1996, and 82% of its housing units are single-family detached. The median home value in ZIP code 55920 is $356,900, and 84% of its occupied homes are owner-occupied. The median owner-occupied home in Byron is valued at $326,400.

• ZIP code 55920

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

The NOAA Storm Events Database records 70 hail events, 61 thunderstorm-wind events and 1 tornado within 10 miles of Byron 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. 6 of those hail events had hail 1.5 inches or larger.

The closest event to the center of Byron was 1 in hail on July 22, 2023, less than 1 mile away near Byron. The most recent hail event within 10 miles of Byron was on July 2, 2025: 0.75 in hail near Rochester. The most recent thunderstorm-wind event within 10 miles of Byron was on July 28, 2025, near Rochester. The strongest thunderstorm wind recorded within 10 miles of Byron in that period was 75 mph. The busiest year was 2017, with 28 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).

Olmsted County has 70,255 housing units, and 64% of them are single-family detached homes (American Community Survey 2023, 5-year). Another 8% are attached homes such as townhomes. Mobile homes make up 2% of the housing units.

The median home in Olmsted County was built in 1987. 42% of homes in Olmsted County were built before 1980, and 32% were built in 2000 or later. The most common building period is 2000–2009, with 13,322 homes.

71% of occupied homes in Olmsted County are owner-occupied. The median owner-occupied home in Olmsted County is valued at $304,500. Among occupied homes in Olmsted County, 71% heat with utility gas, 18% with electricity, 8% with bottled or tank gas and 1% with wood.

• Year-built table and more on the Olmsted County page

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

Byron is in Olmsted County, so the county ratings below apply to it. Olmsted County scores 83.4 of 100 for hail in FEMA's National Risk Index, which ranks 17th of 87 Minnesota counties. Olmsted County scores 70.1 of 100 for strong wind in FEMA's National Risk Index, which ranks 38th of 87 Minnesota counties. Olmsted County scores 83.3 of 100 for winter weather in FEMA's National Risk Index, which ranks 17th of 87 Minnesota counties. Of the perils listed here, the highest score in Olmsted County is for cold wave, at 92.8 of 100.

Olmsted County averages 36.7 inches of precipitation a year (NOAA 1991–2020 normals). The average annual temperature in Olmsted County is 44.6°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 Kasson (5.4 miles), Mantorville (5.9 miles), Rochester (8.3 miles), Oronoco (9.8 miles), Dodge Center (11 miles), Pine Island (11 miles), High Forest (14 miles) and Stewartville (14 miles). The other Olmsted County communities we serve are Dover, Eyota, High Forest, Marion, Oronoco, Rochester and Stewartville.

• Kasson 5.4 mi
• Mantorville 5.9 mi
• Rochester 8.3 mi
• Oronoco 9.8 mi
• Dodge Center 11 mi
• Pine Island 11 mi
• High Forest 14 mi
• Stewartville 14 mi
• Hayfield 15 mi
• West Concord 15 mi

Our Rochester office is at 3470 55th St NW, Rochester, MN 55901, about 7 miles from Byron. 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