Lafayette County, Missouri · Lexington
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With 32% of homes built before 1960 and about 32 hard-freeze nights a year, frozen and split pipes are a leading winter risk in the county.
July brings the most downpours to Lafayette County, part of 10.5 heavy-rain days a year. Check the sump first.
Sewage backups in Lafayette County spike on heavy-rain days, about 10.5 a year, when sewer mains fill up and water finds the lowest drain.
Lafayette County's wettest day in the 2015–2024 record brought 5.2 inches, and about 81 freeze-thaw days a year mean ice dams in some winters.
17% of occupied homes in Lafayette County heat mainly with wood or propane, below the Missouri county median of 24.5%.
With 66 muggy nights a year, mold in Lafayette County can appear within days of a leak. Dry first, then clean.
Local risk profile
Lafayette County covers 628 square miles of western Missouri, with about 33,115 residents and 14,221 homes. Besides Lexington, the county seat, the biggest communities are Odessa, Higginsville and Concordia. The county's median home was built in 1975.
62/100 Water Damage Risk Index: Elevated Lafayette County ranks 14 of 114 Missouri counties. See the statewide ranking and method.The three factors where Lafayette County ranks highest compared with other Missouri counties.
Lafayette is on the colder side of Missouri for pipes. From 2015–2024 it averaged 32 nights a year at 20°F or colder, the range where pipes in exterior walls, crawl spaces and unheated garages freeze, and 102 nights at or below 32°F. That ranks 37th of 114 counties.
On February 16, 2021 the low fell to about -12°F, and in the stretch ending January 2018 the county went 14 days in a row below freezing. Leaks from split pipes typically appear the day the thaw arrives.
Expect the hardest freezes in January, inside a season that runs November to February. That's when an outdoor spigot left connected to a hose, or a pipe in a crawl space, is most likely to split.
On average the first fall freeze arrives around Oct 25 and the last spring freeze around Apr 11.
Rainfall is about average for Missouri. Of roughly 40.2 inches of yearly precipitation, the damage comes from the 10.5 days a year with an inch or more, ranked 52nd of 114. May, June and July see the most. The single wettest day in the record: 5.2 inches, July 3, 2016. Multi-day storms matter most for basements; the wettest three days on record here totaled 5.98 inches (through July 3, 2016).
About 81 days a year swing from below freezing at night to above freezing by day. Those freeze-thaw cycles feed ice dams on roofs, open cracks in foundations and driveways, and stress pipes that are already marginal.
Housing
Roughly 58% of the county's housing was built before 1980. That puts Lafayette near the middle of Missouri's 114 counties.
32% were built before 1960. Homes from that era often still have galvanized steel supply pipe, which rusts from the inside until it pinholes, and cast iron drains that crack with age. Slow leaks behind walls are a common start to water damage in these houses.
The 1980s and 1990s account for 23% of the county's homes. If yours is from those decades, look under the sinks and at the water heater for gray plastic pipe stamped PB, which is polybutylene and leak-prone.
Beyond water
About 66 nights a year in Lafayette County stay at 65°F or warmer, a sign of muggy summer air (50th of 114 counties). July is the wettest month. The EPA recommends keeping indoor humidity below 60%, ideally 30 to 50%. Basements can pass 60% on their own in summer, so a dehumidifier matters even without a leak, and anything wet should be dried within 24 to 48 hours.
Mold remediation: what to expectHeating fuel matters for fire risk. In Lafayette County it's 51% utility gas, 30% electric, 16% propane and 1% wood. Fires here are likelier to start in the kitchen or the wiring than in the furnace. After any fire, keep the HVAC off until ducts are checked, or soot will travel through the house.
Fire and smoke cleanup: first stepsCoverage
Calls connect to restoration companies that work across Lafayette County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Carroll and Ray get more pipe-freeze nights than Lafayette. It also has the most heavy-rain days in its area. Carroll County has the oldest housing nearby, with 77% of homes built before 1980.
By the numbers
| Factor | Lafayette | Missouri median | Rank |
|---|---|---|---|
| Homes built before 1960 | 32% | 25% | 37 of 114 |
| Homes built before 1980 | 58% | 53% | 43 of 114 |
| Homes built 2000 or later | 20% | 21% | 67 of 114 |
| Manufactured or mobile homes | 5.7% | 9.8% | 94 of 114 |
| Vacant homes | 12% | 15% | 84 of 114 |
| Wood or propane heat | 17% | 25% | 80 of 114 |
| Nights at 20°F or colder | 32/yr | 28/yr | 37 of 114 |
| Days with 1 inch+ of rain | 11/yr | 10/yr | 52 of 114 |
| Freeze-thaw days | 81/yr | 77/yr | 35 of 114 |
| Muggy nights (65°F+) | 66/yr | 65/yr | 50 of 114 |
Rank 1 is the highest value. Bars run from the lowest to the highest Missouri county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Lafayette County: freezing from November to February, heavy rain in May, June and July.
Sources: U.S. Census Bureau, ACS 2024 5-year estimates (2020-2024); weather from NOAA nClimGrid-Daily county averages (EpiNOAA), 2015–2024, averaged across the county; county boundaries from Census TIGER. Reviewed 2026-10-21. Methodology