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Weather & Climate in Halfway, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Halfway experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 30°F in January while summers reach 78°F in July. The area gets 258 sunny days per year, above the national average. Annual precipitation totals 42.7 inches. The area receives 4.5 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 1,093 feet.
Temperature
30°F Jan (-1°C)
78°F Jul (25°C)
| Annual Average | 55.4°F |
| 3% above US avg | |
| January Average | 30°F (-1°C) |
| July Average | 78°F (25°C) |
| Sunny Days | 258 days/yr |
Geography
| Elevation | 1,093 ft (333 m) |
| Area | 2.1 sq mi (5.5 km²) |
| Population Density | 61/sq mi |
| Coordinates | 37.6164°N, 93.2446°W |
| Timezone | America/Chicago |
| Nearest Airport | Waynesville-St Robert Regional Forney Field (TBN) 61 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Earthquake History
14 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.6.
| Jun 11, 2017 | 6 km NNE of Bergman, Arkansas | M3.6 | 140 km | 6 km |
| May 18, 2005 | Missouri | M3.3 | 113 km | 5 km |
| Jul 31, 2005 | Missouri | M3.3 | 131 km | 5 km |
| Mar 30, 2001 | 1 km SW of Hermitage, Missouri | M3.1 | 36 km | 5 km |
| Jan 21, 1992 | 5 km SE of Linn Creek, Missouri | M3.1 | 66 km | 5 km |
| Jun 16, 2017 | 6 km N of Bergman, Arkansas | M2.9 | 140 km | 6 km |
| Feb 14, 2019 | 11 km WSW of Mountain View, Missouri | M2.6 | 147 km | 7 km |
| Apr 4, 2015 | 3 km ESE of Clinton, Missouri | M2.6 | 94 km | 2 km |
| Apr 23, 2025 | 3 km E of Hartville, Missouri | M2.6 | 80 km | 4 km |
| Apr 29, 2018 | 3 km WNW of Evergreen, Missouri | M2.5 | 55 km | 2 km |
| Jun 21, 2017 | 6 km N of Bergman, Arkansas | M2.5 | 140 km | 5 km |
| May 13, 2015 | 8 km E of Lead Hill, Arkansas | M2.5 | 137 km | 0 km |
| Jan 4, 2024 | 13 km E of South Lead Hill, Arkansas | M2.5 | 141 km | 4 km |
| May 2, 2001 | 10 km NW of Bakersfield, Missouri | M2.5 | 146 km | 1 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
464 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 24 fatalities, 392 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Nov 29, 1991 | EF4 | 58 km | 10.0 mi | 2 |
| Sep 26, 1959 | EF4 | 59 km | 7.8 mi | 0 |
| Mar 25, 1954 | EF4 | 95 km | 12.1 mi | 2 |
| May 22, 2019 | EF3 | 94 km | 11.3 mi | 3 |
| May 22, 2019 | EF3 | 97 km | 32.7 mi | 0 |
| Dec 31, 2010 | EF3 | 93 km | 7.5 mi | 0 |
| Jan 7, 2008 | EF3 | 38 km | 50.4 mi | 3 |
| Mar 12, 2006 | EF3 | 86 km | 42.0 mi | 1 |
| Mar 12, 2006 | EF3 | 31 km | 17.0 mi | 0 |
| Mar 12, 2006 | EF3 | 53 km | 32.0 mi | 0 |
| May 4, 2003 | EF3 | 48 km | 14.0 mi | 4 |
| May 4, 1999 | EF3 | 73 km | 3.0 mi | 0 |
| Apr 29, 1983 | EF3 | 50 km | 5.5 mi | 1 |
| Mar 15, 1982 | EF3 | 59 km | 14.0 mi | 0 |
| Apr 20, 1973 | EF3 | 49 km | 1.0 mi | 0 |
| Apr 20, 1973 | EF3 | 90 km | 5.0 mi | 0 |
| Apr 20, 1973 | EF3 | 95 km | 10.1 mi | 0 |
| Apr 20, 1973 | EF3 | 76 km | 19.4 mi | 0 |
| Apr 20, 1973 | EF3 | 69 km | 7.8 mi | 0 |
| Apr 30, 2019 | EF2 | 61 km | 10.3 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 | 43 km |
| 1994 | UNNAMED | 5,344 | 43 km |
| 2006 | BIG SPRING FIRE | 4,921 | 41 km |
| 2010 | UNNAMED | 4,767 | 45 km |
| 2009 | MOUNTAIN CREEK | 4,322 | 44 km |
| 1991 | UNNAMED | 4,179 | 37 km |
| 2023 | CANNON RANGE RX | 3,870 | 89 km |
| 1992 | UNNAMED | 3,538 | 45 km |
| 1991 | UNNAMED | 3,533 | 40 km |
| 1991 | UNNAMED | 3,492 | 35 km |
| 1994 | UNNAMED | 3,336 | 51 km |
| 1991 | UNNAMED | 3,135 | 39 km |
| 2012 | KINFOLK RD | 2,883 | 43 km |
| 1991 | UNNAMED | 2,763 | 57 km |
| 2007 | UNNAMED | 2,710 | 41 km |
| 2005 | UNNAMED | 2,590 | 44 km |
| 2006 | UNNAMED | 2,575 | 45 km |
| 1991 | UNNAMED | 2,569 | 46 km |
| 2002 | UNNAMED | 2,418 | 49 km |
| 1991 | UNNAMED | 2,369 | 51 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 1.7 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) | 4.9 in | Wettest |
| June | 72°F (22°C) | 4.7 in | |
| July | 78°F (25°C) | 3.3 in | Warmest |
| August | 77°F (25°C) | 3.5 in | |
| September | 69°F (20°C) | 4.5 in | |
| October | 58°F (14°C) | 4.0 in | |
| November | 45°F (7°C) | 3.6 in | |
| December | 35°F (2°C) | 2.8 in |
Halfway has a seasonal temperature swing of 48°F / from 30°F in January to 78°F in July. Total annual precipitation is 42.7 inches, with May being the wettest month (4.9") and January the driest (1.7").