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Weather & Climate in Niangua, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Niangua experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 31°F in January while summers reach 77°F in July. The area gets 259 sunny days per year, above the national average. Annual precipitation totals 42.6 inches. The area receives 4.8 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 1,450 feet.
Temperature
31°F Jan (-1°C)
77°F Jul (25°C)
| Annual Average | 55.1°F |
| 2% above US avg | |
| January Average | 31°F (-1°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 259 days/yr |
Geography
| Elevation | 1,450 ft (442 m) |
| Area | 0.4 sq mi (1.1 km²) |
| Population Density | 1,207/sq mi |
| Coordinates | 37.3873°N, 92.8327°W |
| Timezone | America/Chicago |
| Nearest Airport | Waynesville-St Robert Regional Forney Field (TBN) 45 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Earthquake History
21 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.9.
| Jul 7, 1991 | 11 km ENE of Brandsville, Missouri | M3.9 | 137 km | 8 km |
| Aug 16, 2003 | 5 km W of Thomasville, Missouri | M3.7 | 128 km | 0 km |
| Sep 12, 2019 | 13 km N of Big Flat, Arkansas | M3.7 | 145 km | 18 km |
| Jun 11, 2017 | 6 km NNE of Bergman, Arkansas | M3.6 | 113 km | 6 km |
| Jul 31, 2005 | Missouri | M3.3 | 148 km | 5 km |
| Mar 30, 2001 | 1 km SW of Hermitage, Missouri | M3.1 | 75 km | 5 km |
| Jan 21, 1992 | 5 km SE of Linn Creek, Missouri | M3.1 | 70 km | 5 km |
| Mar 18, 1990 | 9 km W of Alton, Missouri | M3.0 | 141 km | 1 km |
| Jun 16, 2017 | 6 km N of Bergman, Arkansas | M2.9 | 114 km | 6 km |
| Mar 12, 1990 | 9 km NNE of Briarcliff, Arkansas | M2.8 | 126 km | 0 km |
| Jul 3, 2014 | 6 km S of Yellville, Arkansas | M2.7 | 137 km | 8 km |
| Nov 26, 1999 | 9 km NNE of Mountain Home, Arkansas | M2.7 | 116 km | 3 km |
| Feb 14, 2019 | 11 km WSW of Mountain View, Missouri | M2.6 | 103 km | 7 km |
| Apr 4, 2015 | 3 km ESE of Clinton, Missouri | M2.6 | 135 km | 2 km |
| Apr 23, 2025 | 3 km E of Hartville, Missouri | M2.6 | 36 km | 4 km |
| Apr 29, 2018 | 3 km WNW of Evergreen, Missouri | M2.5 | 26 km | 2 km |
| May 13, 2015 | 8 km E of Lead Hill, Arkansas | M2.5 | 106 km | 0 km |
| Jun 21, 2017 | 6 km N of Bergman, Arkansas | M2.5 | 114 km | 5 km |
| Jan 4, 2024 | 13 km E of South Lead Hill, Arkansas | M2.5 | 109 km | 4 km |
| May 2, 2001 | 10 km NW of Bakersfield, Missouri | M2.5 | 104 km | 1 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
465 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 18 fatalities, 361 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Nov 29, 1991 | EF4 | 52 km | 10.0 mi | 2 |
| Sep 26, 1959 | EF4 | 15 km | 7.8 mi | 0 |
| Mar 25, 1954 | EF4 | 54 km | 12.1 mi | 2 |
| Dec 31, 2010 | EF3 | 66 km | 7.5 mi | 0 |
| May 8, 2009 | EF3 | 98 km | 2.2 mi | 0 |
| Jan 7, 2008 | EF3 | 92 km | 4.7 mi | 0 |
| Jan 7, 2008 | EF3 | 89 km | 1.8 mi | 0 |
| Jan 7, 2008 | EF3 | 31 km | 50.4 mi | 3 |
| Mar 12, 2006 | EF3 | 16 km | 32.0 mi | 0 |
| Mar 12, 2006 | EF3 | 74 km | 17.0 mi | 0 |
| Mar 12, 2006 | EF3 | 97 km | 42.0 mi | 1 |
| May 4, 2003 | EF3 | 57 km | 14.0 mi | 4 |
| Apr 29, 1983 | EF3 | 58 km | 5.5 mi | 1 |
| Apr 11, 1979 | EF3 | 75 km | 35.4 mi | 0 |
| Apr 20, 1973 | EF3 | 88 km | 1.0 mi | 0 |
| Apr 30, 2019 | EF2 | 48 km | 10.3 mi | 0 |
| Apr 13, 2018 | EF2 | 44 km | 9.0 mi | 0 |
| Apr 2, 2015 | EF2 | 96 km | 7.6 mi | 0 |
| Feb 28, 2012 | EF2 | 36 km | 9.5 mi | 1 |
| May 22, 2011 | EF2 | 85 km | 15.7 mi | 0 |
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 | 58 km |
| 2007 | UNNAMED | 6,931 | 76 km |
| 2011 | UNNAMED | 6,686 | 81 km |
| 2010 | BRUSHY/CLAYTON | 6,401 | 75 km |
| 2020 | BIG CREEK | 6,399 | 81 km |
| 1994 | UNNAMED | 5,344 | 42 km |
| 2021 | ROCK PILE | 5,067 | 87 km |
| 2006 | BIG SPRING FIRE | 4,921 | 57 km |
| 2010 | UNNAMED | 4,767 | 59 km |
| 2023 | ELM SPRINGS RX | 4,378 | 90 km |
| 2009 | MOUNTAIN CREEK | 4,322 | 47 km |
| 1991 | UNNAMED | 4,179 | 44 km |
| 2016 | BIG CREEK | 4,031 | 84 km |
| 2023 | CANNON RANGE RX | 3,870 | 59 km |
| 2021 | UNNAMED | 3,665 | 71 km |
| 1992 | UNNAMED | 3,538 | 61 km |
| 1991 | UNNAMED | 3,533 | 40 km |
| 1991 | UNNAMED | 3,492 | 49 km |
| 1994 | UNNAMED | 3,336 | 56 km |
| 2021 | KAINTUCK | 3,325 | 95 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) | 2.1 in | |
| March | 45°F (7°C) | 3.7 in | |
| April | 55°F (13°C) | 4.0 in | |
| May | 64°F (18°C) | 4.7 in | Wettest |
| June | 72°F (22°C) | 4.4 in | |
| July | 77°F (25°C) | 3.6 in | Warmest |
| August | 76°F (24°C) | 3.4 in | |
| September | 68°F (20°C) | 4.3 in | |
| October | 57°F (14°C) | 3.8 in | |
| November | 45°F (7°C) | 3.8 in | |
| December | 35°F (2°C) | 3.0 in |
Niangua has a seasonal temperature swing of 46°F / from 31°F in January to 77°F in July. Total annual precipitation is 42.6 inches, with May being the wettest month (4.7") and January the driest (1.9").