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Weather & Climate in Pontiac, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Pontiac enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 34°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 42.5 inches. The area receives 2.1 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 830 feet.
Temperature
34°F Jan (1°C)
78°F Jul (26°C)
| Annual Average | 57.2°F |
| 6% above US avg | |
| January Average | 34°F (1°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 259 days/yr |
Geography
| Elevation | 830 ft (253 m) |
| Area | 2.5 sq mi (6.5 km²) |
| Population Density | 27/sq mi |
| Coordinates | 36.5156°N, 92.6038°W |
| Timezone | America/Chicago |
| Nearest Airport | Marion County Regional (FLP) 16 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Earthquake History
243 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.7.
| Feb 28, 2011 | 4 km NE of Greenbrier, Arkansas | M4.7 | 141 km | 3 km |
| May 4, 2001 | 8 km NNW of Holland, Arkansas | M4.3 | 144 km | 8 km |
| Feb 18, 2011 | 4 km NNE of Greenbrier, Arkansas | M4.1 | 140 km | 6 km |
| Oct 21, 1999 | 9 km NW of Maynard, Arkansas | M3.9 | 146 km | 10 km |
| Apr 8, 2011 | 3 km NE of Greenbrier, Arkansas | M3.9 | 141 km | 6 km |
| Aug 22, 2000 | 19 km WNW of Maynard, Arkansas | M3.9 | 135 km | 10 km |
| Jul 7, 1991 | 11 km ENE of Brandsville, Missouri | M3.9 | 94 km | 8 km |
| Feb 18, 2011 | 3 km NNE of Greenbrier, Arkansas | M3.9 | 142 km | 5 km |
| Jun 4, 2014 | 3 km ESE of Fairfield Bay, Arkansas | M3.8 | 109 km | 0 km |
| Feb 17, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.8 | 140 km | 6 km |
| Sep 12, 2019 | 13 km N of Big Flat, Arkansas | M3.7 | 47 km | 18 km |
| Aug 16, 2003 | 5 km W of Thomasville, Missouri | M3.7 | 95 km | 0 km |
| Apr 7, 2011 | 2 km NE of Greenbrier, Arkansas | M3.7 | 142 km | 6 km |
| Jun 11, 2017 | 6 km NNE of Bergman, Arkansas | M3.6 | 38 km | 6 km |
| Feb 28, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.6 | 140 km | 4 km |
| Feb 20, 2011 | 3 km NNE of Greenbrier, Arkansas | M3.6 | 141 km | 5 km |
| Feb 16, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.5 | 140 km | 7 km |
| Apr 8, 2011 | 2 km NNE of Greenbrier, Arkansas | M3.5 | 141 km | 6 km |
| Feb 25, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.5 | 139 km | 6 km |
| Mar 9, 2011 | 1 km NW of Greenbrier, Arkansas | M3.5 | 143 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
428 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 38 fatalities, 601 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 14, 1996 | EF4 | 81 km | 44.0 mi | 7 |
| Nov 29, 1991 | EF4 | 90 km | 10.0 mi | 2 |
| Dec 24, 1982 | EF4 | 96 km | 63.0 mi | 0 |
| Apr 2, 1982 | EF4 | 35 km | 20.0 mi | 2 |
| Sep 26, 1959 | EF4 | 93 km | 7.8 mi | 0 |
| Mar 25, 1954 | EF4 | 95 km | 12.1 mi | 2 |
| May 26, 2024 | EF3 | 92 km | 12.4 mi | 0 |
| May 26, 2024 | EF3 | 37 km | 34.6 mi | 1 |
| May 26, 2024 | EF3 | 55 km | 21.6 mi | 4 |
| May 8, 2009 | EF3 | 73 km | 2.2 mi | 0 |
| Jan 7, 2008 | EF3 | 98 km | 50.4 mi | 3 |
| Mar 1, 2007 | EF3 | 41 km | 15.0 mi | 1 |
| Mar 12, 2006 | EF3 | 85 km | 32.0 mi | 0 |
| Mar 5, 1996 | EF3 | 79 km | 46.5 mi | 0 |
| Nov 18, 1985 | EF3 | 38 km | 34.0 mi | 3 |
| Dec 2, 1982 | EF3 | 96 km | 9.0 mi | 0 |
| Dec 2, 1982 | EF3 | 99 km | 23.0 mi | 0 |
| Apr 2, 1982 | EF3 | 44 km | 1.5 mi | 2 |
| Apr 2, 1982 | EF3 | 42 km | 1.0 mi | 0 |
| Apr 11, 1979 | EF3 | 71 km | 35.4 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: DEAD HORSE (10,389 acres, 2007).
| Year | Name | Acres Burned | Distance |
| 2007 | DEAD HORSE | 10,389 | 45 km |
| 2004 | LOWER WILD | 10,034 | 45 km |
| 2018 | UNNAMED | 9,226 | 91 km |
| 2013 | LOWER WILDERNESS RX | 8,699 | 45 km |
| 2003 | UNNAMED | 8,286 | 93 km |
| 2007 | UNNAMED | 6,931 | 29 km |
| 2021 | SYL BIRMINGHAM | 6,803 | 54 km |
| 2011 | UNNAMED | 6,686 | 25 km |
| 2017 | UNNAMED | 6,457 | 94 km |
| 2010 | BRUSHY/CLAYTON | 6,401 | 29 km |
| 2020 | BIG CREEK | 6,399 | 25 km |
| 2001 | UNNAMED | 6,354 | 86 km |
| 2016 | UNNAMED | 5,118 | 93 km |
| 2021 | ROCK PILE | 5,067 | 67 km |
| 2013 | UNNAMED | 4,912 | 93 km |
| 2018 | UNNAMED | 4,873 | 54 km |
| 2019 | UNNAMED | 4,493 | 68 km |
| 2014 | UNNAMED | 4,337 | 66 km |
| 2020 | CAVE CREEK | 4,263 | 69 km |
| 2016 | BIG CREEK | 4,031 | 24 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 34°F (1°C) | 2.1 in | Coldest, Driest |
| February | 39°F (4°C) | 2.6 in | |
| March | 48°F (9°C) | 4.1 in | |
| April | 57°F (14°C) | 4.0 in | |
| May | 65°F (19°C) | 4.7 in | Wettest |
| June | 73°F (23°C) | 4.0 in | |
| July | 78°F (26°C) | 3.0 in | Warmest |
| August | 77°F (25°C) | 3.4 in | |
| September | 70°F (21°C) | 3.9 in | |
| October | 59°F (15°C) | 3.4 in | |
| November | 47°F (9°C) | 4.0 in | |
| December | 38°F (3°C) | 3.5 in |
Pontiac has a seasonal temperature swing of 45°F / from 34°F in January to 78°F in July. Total annual precipitation is 42.5 inches, with May being the wettest month (4.7") and January the driest (2.1").