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Weather & Climate in Waynesville, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Waynesville enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 31°F in January while summers reach 78°F in July. The area gets 259 sunny days per year, above the national average. Annual precipitation totals 42.6 inches. The area receives 5.0 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 817 feet.
Temperature
31°F Jan (-1°C)
78°F Jul (25°C)
| Annual Average | 55.5°F |
| 3% above US avg | |
| January Average | 31°F (-1°C) |
| July Average | 78°F (25°C) |
| Sunny Days | 259 days/yr |
Geography
| Elevation | 817 ft (249 m) |
| Area | 6.5 sq mi (16.7 km²) |
| Population Density | 758/sq mi |
| Coordinates | 37.8287°N, 92.2007°W |
| Timezone | America/Chicago |
| Nearest Airport | Waynesville-St Robert Regional Forney Field (TBN) 7 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Earthquake History
22 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.9.
| Jun 7, 2011 | 18 km NNW of Potosi, Missouri | M3.9 | 117 km | 21 km |
| Jul 7, 1991 | 11 km ENE of Brandsville, Missouri | M3.9 | 139 km | 8 km |
| Aug 16, 2003 | 5 km W of Thomasville, Missouri | M3.7 | 127 km | 0 km |
| Jul 31, 2005 | Missouri | M3.3 | 109 km | 5 km |
| Mar 30, 2001 | 1 km SW of Hermitage, Missouri | M3.1 | 100 km | 5 km |
| Jan 21, 1992 | 5 km SE of Linn Creek, Missouri | M3.1 | 45 km | 5 km |
| Mar 18, 1990 | 9 km W of Alton, Missouri | M3.0 | 141 km | 1 km |
| May 18, 2006 | 9 km SSE of De Soto, Missouri | M2.9 | 149 km | 6 km |
| Jul 8, 2003 | 1 km N of Leasburg, Missouri | M2.9 | 85 km | 4 km |
| Jul 31, 1995 | 8 km SSW of Caledonia, Missouri | M2.8 | 123 km | 5 km |
| May 14, 2007 | 12 km NE of Alton, Missouri | M2.7 | 140 km | 8 km |
| Oct 26, 1998 | 10 km NE of Van Buren, Missouri | M2.7 | 140 km | 4 km |
| Jul 15, 1990 | 7 km SW of Potosi, Missouri | M2.7 | 120 km | 3 km |
| Feb 14, 2019 | 11 km WSW of Mountain View, Missouri | M2.6 | 104 km | 7 km |
| Apr 4, 2015 | 3 km ESE of Clinton, Missouri | M2.6 | 147 km | 2 km |
| Mar 7, 2009 | 7 km S of Miramiguoa Park, Missouri | M2.6 | 106 km | 7 km |
| Feb 3, 2014 | 18 km NW of Potosi, Missouri | M2.6 | 114 km | 14 km |
| Sep 20, 1997 | 6 km NE of Ellington, Missouri | M2.6 | 128 km | 8 km |
| Sep 11, 2019 | 6 km NNE of Bonne Terre, Missouri | M2.6 | 148 km | 7 km |
| Apr 23, 2025 | 3 km E of Hartville, Missouri | M2.6 | 68 km | 4 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
349 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 16 fatalities, 283 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jun 22, 1969 | EF4 | 98 km | 20.2 mi | 2 |
| Dec 21, 1967 | EF4 | 96 km | 27.9 mi | 3 |
| Sep 26, 1959 | EF4 | 67 km | 7.8 mi | 0 |
| Mar 25, 1954 | EF4 | 57 km | 12.1 mi | 2 |
| May 26, 2024 | EF3 | 97 km | 12.4 mi | 0 |
| May 22, 2019 | EF3 | 67 km | 32.7 mi | 0 |
| Dec 31, 2010 | EF3 | 37 km | 11.0 mi | 2 |
| Dec 31, 2010 | EF3 | 16 km | 7.5 mi | 0 |
| Jan 7, 2008 | EF3 | 18 km | 4.7 mi | 0 |
| Jan 7, 2008 | EF3 | 15 km | 1.8 mi | 0 |
| Mar 12, 2006 | EF3 | 87 km | 32.0 mi | 0 |
| May 4, 2003 | EF3 | 56 km | 14.0 mi | 4 |
| Jun 1, 1999 | EF3 | 50 km | 7.0 mi | 0 |
| May 1, 1983 | EF3 | 73 km | 9.0 mi | 0 |
| Apr 11, 1979 | EF3 | 90 km | 35.4 mi | 0 |
| May 21, 1957 | EF3 | 69 km | 10.2 mi | 0 |
| Apr 15, 2023 | EF2 | 43 km | 6.9 mi | 0 |
| Apr 13, 2018 | EF2 | 86 km | 9.0 mi | 0 |
| May 11, 2016 | EF2 | 93 km | 4.4 mi | 0 |
| Feb 28, 2012 | EF2 | 92 km | 9.5 mi | 1 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (7,388 acres, 1994).
| Year | Name | Acres Burned | Distance |
| 1994 | UNNAMED | 7,388 | 64 km |
| 1994 | UNNAMED | 5,344 | 53 km |
| 2006 | BIG SPRING FIRE | 4,921 | 64 km |
| 2011 | MINNINGHAW | 4,792 | 86 km |
| 2010 | UNNAMED | 4,767 | 63 km |
| 2017 | UNNAMED | 4,602 | 86 km |
| 2023 | ELM SPRINGS RX | 4,378 | 20 km |
| 2009 | MOUNTAIN CREEK | 4,322 | 53 km |
| 1991 | UNNAMED | 4,179 | 60 km |
| 2023 | CANNON RANGE RX | 3,870 | 23 km |
| 2021 | UNNAMED | 3,665 | 46 km |
| 1992 | UNNAMED | 3,538 | 64 km |
| 1991 | UNNAMED | 3,533 | 55 km |
| 1991 | UNNAMED | 3,492 | 65 km |
| 1994 | UNNAMED | 3,336 | 51 km |
| 2021 | KAINTUCK | 3,325 | 25 km |
| 2005 | UNNAMED | 3,252 | 87 km |
| 1991 | UNNAMED | 3,135 | 60 km |
| 2022 | LITTLE CREEK | 3,004 | 87 km |
| 2021 | HODGE HOLLOW | 2,922 | 82 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-1°C) | 1.9 in | Coldest, Driest |
| February | 36°F (2°C) | 2.3 in | |
| March | 46°F (8°C) | 3.8 in | |
| April | 56°F (13°C) | 3.9 in | |
| May | 64°F (18°C) | 4.8 in | Wettest |
| June | 72°F (22°C) | 4.1 in | |
| July | 78°F (25°C) | 3.6 in | Warmest |
| August | 76°F (25°C) | 3.5 in | |
| September | 68°F (20°C) | 4.0 in | |
| October | 58°F (14°C) | 3.8 in | |
| November | 46°F (8°C) | 3.8 in | |
| December | 35°F (2°C) | 3.1 in |
Waynesville has a seasonal temperature swing of 47°F / from 31°F in January to 78°F in July. Total annual precipitation is 42.6 inches, with May being the wettest month (4.8") and January the driest (1.9").