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Weather & Climate in Wortham, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Wortham experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 30°F in January while summers reach 77°F in July. The area gets 261 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 41.4 inches. The area receives 7.9 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 928 feet.
Temperature
30°F Jan (-1°C)
77°F Jul (25°C)
| Annual Average | 54.9°F |
| 2% above US avg | |
| January Average | 30°F (-1°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 261 days/yr |
Geography
| Elevation | 928 ft (283 m) |
| Area | 0.9 sq mi (2.3 km²) |
| Population Density | 183/sq mi |
| Coordinates | 37.8445°N, 90.6087°W |
| Timezone | America/Chicago |
| Nearest Airport | Farmington Regional (FAM) 12 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Earthquake History
68 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Sep 26, 1990 | 4 km SE of Chaffee, Missouri | M4.8 | 117 km | 1 km |
| Feb 5, 1994 | 2 km WNW of Dongola, Illinois | M4.2 | 136 km | 16 km |
| Jun 7, 2011 | 18 km NNW of Potosi, Missouri | M3.9 | 37 km | 21 km |
| Aug 16, 2003 | 5 km W of Thomasville, Missouri | M3.7 | 146 km | 0 km |
| Sep 22, 2011 | 6 km E of Grandin, Missouri | M3.6 | 115 km | 11 km |
| Jun 15, 2004 | 3 km S of Canalou, Missouri | M3.5 | 149 km | 5 km |
| Aug 27, 1993 | 5 km SSE of Olympian Village, Missouri | M3.3 | 31 km | 22 km |
| Dec 27, 1992 | 2 km E of Pocahontas, Missouri | M3.2 | 95 km | 10 km |
| Apr 6, 1994 | 2 km NE of Tamaroa, Illinois | M3.2 | 127 km | 15 km |
| Mar 12, 2002 | 6 km S of Marble Hill, Missouri | M3.1 | 88 km | 10 km |
| Feb 28, 1994 | 5 km NW of Harrison, Illinois | M3.0 | 108 km | 5 km |
| Jun 27, 2005 | 6 km E of Grand Tower, Illinois | M3.0 | 107 km | 10 km |
| Mar 1, 2006 | 2 km N of Buncombe, Illinois | M3.0 | 148 km | 6 km |
| Jun 27, 2025 | 12 km WSW of Grandin, Missouri | M2.9 | 124 km | 10 km |
| Sep 5, 1995 | 3 km N of Woodlawn, Illinois | M2.9 | 149 km | 4 km |
| May 21, 2012 | 6 km SW of Williamsville, Missouri | M2.9 | 102 km | 10 km |
| May 18, 2006 | 9 km SSE of De Soto, Missouri | M2.9 | 24 km | 6 km |
| Jul 8, 2003 | 1 km N of Leasburg, Missouri | M2.9 | 67 km | 4 km |
| Apr 29, 2022 | 1 km SSW of Peerless Park, Missouri | M2.8 | 77 km | 8 km |
| Mar 28, 2024 | 1 km NNE of Germantown, Illinois | M2.8 | 124 km | 24 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
494 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 71 fatalities, 1,091 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Feb 28, 2017 | EF4 | 55 km | 53.5 mi | 1 |
| Apr 22, 2011 | EF4 | 100 km | 21.3 mi | 0 |
| Sep 22, 2006 | EF4 | 71 km | 27.5 mi | 0 |
| Jun 22, 1969 | EF4 | 14 km | 15.1 mi | 4 |
| Jun 22, 1969 | EF4 | 45 km | 20.2 mi | 2 |
| Dec 21, 1967 | EF4 | 49 km | 27.9 mi | 3 |
| Jan 24, 1967 | EF4 | 93 km | 25.0 mi | 3 |
| Feb 10, 1959 | EF4 | 76 km | 23.9 mi | 21 |
| Feb 24, 1956 | EF4 | 73 km | 77.6 mi | 6 |
| Dec 10, 2021 | EF3 | 88 km | 24.8 mi | 1 |
| Oct 24, 2021 | EF3 | 23 km | 16.7 mi | 0 |
| Oct 24, 2021 | EF3 | 39 km | 18.8 mi | 0 |
| May 31, 2013 | EF3 | 95 km | 31.7 mi | 0 |
| Dec 31, 2010 | EF3 | 73 km | 6.7 mi | 1 |
| Mar 11, 2006 | EF3 | 39 km | 5.1 mi | 0 |
| Mar 11, 2006 | EF3 | 54 km | 53.5 mi | 2 |
| May 6, 2003 | EF3 | 98 km | 2.0 mi | 0 |
| Apr 27, 2002 | EF3 | 84 km | 4.0 mi | 1 |
| Jun 1, 1999 | EF3 | 96 km | 7.0 mi | 0 |
| Apr 19, 1996 | EF3 | 66 km | 11.5 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: STEGALL MOUNTAIN (6,979 acres, 2022).
| Year | Name | Acres Burned | Distance |
| 2022 | STEGALL MOUNTAIN | 6,979 | 99 km |
| 2015 | 15 STEGAL MOUNTAIN | 5,112 | 100 km |
| 2011 | MINNINGHAW | 4,792 | 78 km |
| 2009 | STEGAL MTN. COMPLEX | 4,717 | 100 km |
| 2017 | UNNAMED | 4,602 | 78 km |
| 2022 | SMITH MILL HOLLOW | 3,978 | 37 km |
| 1999 | STEGALL99 | 3,415 | 100 km |
| 2005 | UNNAMED | 3,252 | 79 km |
| 2021 | COUNCIL BLUFF | 3,035 | 32 km |
| 2022 | LITTLE CREEK | 3,004 | 79 km |
| 2013 | UNNAMED | 2,963 | 94 km |
| 2021 | HODGE HOLLOW | 2,922 | 79 km |
| 2024 | COUNCIL BLUFF WEST RX | 2,846 | 32 km |
| 2004 | 04 RX CAMPBELL/BEAVER | 2,772 | 97 km |
| 2005 | UNNAMED | 2,751 | 32 km |
| 2005 | MCKENZIE HILL | 2,722 | 72 km |
| 2019 | UNNAMED | 2,688 | 42 km |
| 2010 | COUNCIL BLUFF LAKE | 2,651 | 32 km |
| 2022 | MINNINGHAW | 2,516 | 77 km |
| 2006 | UNNAMED | 2,512 | 33 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 2.2 in | Coldest, Driest |
| February | 35°F (2°C) | 2.3 in | |
| March | 45°F (7°C) | 3.9 in | |
| April | 55°F (13°C) | 4.0 in | |
| May | 64°F (18°C) | 4.4 in | Wettest |
| June | 72°F (22°C) | 3.5 in | |
| July | 77°F (25°C) | 3.5 in | Warmest |
| August | 76°F (24°C) | 3.7 in | |
| September | 68°F (20°C) | 3.4 in | |
| October | 57°F (14°C) | 2.9 in | |
| November | 45°F (7°C) | 4.1 in | |
| December | 35°F (2°C) | 3.4 in |
Wortham has a seasonal temperature swing of 47°F / from 30°F in January to 77°F in July. Total annual precipitation is 41.4 inches, with May being the wettest month (4.4") and January the driest (2.2").