Gutters, roofing, siding and windows in ZIP code 55120, Mendota Heights, MN

• Gutters in ZIP code 55120

  Dakota County averages 34.6 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 ZIP code 55120

  38 of the 129 hail events on record within 10 miles of the center of ZIP code 55120 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 55120

  The strongest thunderstorm wind on record within 10 miles of the center of ZIP code 55120 from 2016 through September 22, 2025 was 70 mph. The National Weather Service counts a thunderstorm wind of 58 mph or more as severe.

• Windows in ZIP code 55120

  23% of homes in ZIP code 55120 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 55120 is filed here under Mendota Heights, in Dakota County, Minnesota; its center is about 17 miles north of our Farmington office. Our address file holds 1,851 address points in ZIP code 55120. Of the cities and towns on our pages, ZIP code 55120 covers only Mendota Heights.

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 55120 has 2,119 housing units, and 45% of them are single-family detached homes (American Community Survey 2023, 5-year). Another 20% are attached homes such as townhomes.

The median home in ZIP code 55120 was built in 1990. 23% of homes in ZIP code 55120 were built before 1980, and 26% were built in 2000 or later. The most common building period is 1980–1989, with 561 homes.

61% of occupied homes in ZIP code 55120 are owner-occupied. The median owner-occupied home in ZIP code 55120 is valued at $484,700. Among occupied homes in ZIP code 55120, 70% heat with utility gas, 28% with electricity and 1% with bottled or tank gas.

Source: American Community Survey 2023, 5-year (tables B25024, B25034, B25035, B25003, B25077, B25040), for ZIP Code Tabulation Area 55120.

The nearest other ZIP codes we serve, measured center to center, are 55121 in Eagan (1.9 miles south), 55118 in West St. Paul (2.8 miles northeast), 55116 in St. Paul (2.8 miles north), 55102 in St. Paul (4.3 miles north), 55105 in St. Paul (4.4 miles north) and 55425 in Bloomington (4.7 miles southwest). The table sets ZIP code 55120 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 129 hail events, 101 thunderstorm-wind events and 7 tornadoes within 10 miles of the center of ZIP code 55120 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 2.5 inches on August 11, 2023, near Minneapolis. 38 of those hail events had hail 1.5 inches or larger.

The closest event to the center of ZIP code 55120 was 1.25 in hail on May 19, 2022, less than 1 mile away near Mendota Heights. The most recent hail event within 10 miles of the center of ZIP code 55120 was on September 21, 2025: 1 in hail near South St. Paul. The most recent thunderstorm-wind event within 10 miles of the center of ZIP code 55120 was on July 28, 2025, near Rosemount. The strongest thunderstorm wind recorded within 10 miles of the center of ZIP code 55120 in that period was 70 mph. The busiest year was 2022, with 61 events in all.

Apart from those database entries, NOAA weather radar indicated hail of 1 inch or larger over Mendota Heights on 1 day from January 2025 on, most recently August 15, 2025. A radar indication is an estimate, not a report from the ground, and the counts and tables on this page do not include it.

Source: NOAA Storm Events Database (hail events through March 31, 2026; thunderstorm-wind and tornado events through September 22, 2025); NOAA MRMS radar hail estimates (for the city of Mendota Heights).

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 Mendota Heights, which is in Dakota County; the ratings below are that county's. Dakota County scores 97.5 of 100 for hail in FEMA's National Risk Index, which ranks 3rd of 87 Minnesota counties. Dakota County scores 99.4 of 100 for strong wind in FEMA's National Risk Index, which ranks 1st of 87 Minnesota counties. Dakota County scores 91.9 of 100 for winter weather in FEMA's National Risk Index, which ranks 9th of 87 Minnesota counties. Of the perils listed here, the highest score in Dakota County is for strong wind, at 99.4 of 100.

Dakota County averages 34.6 inches of precipitation a year (NOAA 1991–2020 normals). The average annual temperature in Dakota County is 45.7°F.

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

Our Farmington office is at 821 3rd St, Farmington, MN 55024, about 17 miles from the center of ZIP code 55120. Its hours are Monday–Friday 7:00 AM–7:00 PM. You can reach that office at (651) 998-8500.

• Farmington office: address, hours and map