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Weather & Climate in Sour John, OK
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sour John enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 39°F in January while summers reach 82°F in July. The area gets 310 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 43.2 inches. Air quality is rated Good with a median AQI of 45. The city sits at an elevation of 809 feet.
Temperature
39°F Jan (4°C)
82°F Jul (28°C)
| Annual Average | 60.8°F |
| 13% above US avg | |
| January Average | 39°F (4°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 310 days/yr |
Geography
| Elevation | 809 ft (247 m) |
| Area | 5.7 sq mi (14.7 km²) |
| Population Density | 13/sq mi |
| Coordinates | 35.6206°N, 95.1433°W |
| Timezone | America/Chicago |
| County | Muskogee County County |
| Nearest Airport | Muskogee-Davis Regional (MKO) 13 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 45.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 82.0 / 100 |
| Social Vulnerability | 79.9 / 100 |
| Community Resilience | 41.5 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Moderate |
| Hail | Relatively High |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Very High |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
313 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.1.
| Feb 3, 2024 | 8 km NW of Prague, Oklahoma | M5.1 | 147 km | 3 km |
| Jul 14, 2017 | 10 km WSW of Shamrock, Oklahoma | M4.2 | 142 km | 7 km |
| Feb 27, 2010 | 8 km SE of Sparks, Oklahoma | M4.1 | 146 km | 5 km |
| Apr 3, 2012 | 8 km SSW of Pittsburg, Oklahoma | M4.1 | 128 km | 5 km |
| Apr 16, 2012 | 8 km NW of Prague, Oklahoma | M3.8 | 147 km | 4 km |
| Jan 9, 2014 | 8 km SSE of Sparks, Oklahoma | M3.8 | 148 km | 3 km |
| Sep 16, 2017 | 10 km WSW of Shamrock, Oklahoma | M3.8 | 142 km | 7 km |
| May 10, 2012 | 9 km WNW of Prague, Oklahoma | M3.8 | 149 km | 5 km |
| Aug 24, 2021 | 1 km S of Quinton, Oklahoma | M3.7 | 60 km | 7 km |
| Aug 18, 2019 | 1 km ENE of Quinton, Oklahoma | M3.7 | 58 km | 6 km |
| Mar 22, 2017 | 8 km SW of Shamrock, Oklahoma | M3.7 | 139 km | 5 km |
| Mar 22, 2010 | 8 km SE of Sparks, Oklahoma | M3.7 | 146 km | 8 km |
| Apr 7, 2021 | 7 km WSW of Horntown, Oklahoma | M3.6 | 123 km | 29 km |
| Jul 14, 2017 | 10 km WSW of Shamrock, Oklahoma | M3.6 | 141 km | 7 km |
| Sep 11, 2017 | 8 km ESE of Sparks, Oklahoma | M3.6 | 144 km | 5 km |
| Aug 3, 2017 | 9 km WSW of Shamrock, Oklahoma | M3.5 | 141 km | 6 km |
| Jul 24, 2013 | 4 km NNW of Cromwell, Oklahoma | M3.5 | 124 km | 9 km |
| Jul 14, 2017 | 10 km WSW of Shamrock, Oklahoma | M3.5 | 142 km | 7 km |
| Aug 18, 2014 | 4 km NW of Cromwell, Oklahoma | M3.5 | 125 km | 5 km |
| Jan 4, 2013 | 6 km NW of Cromwell, Oklahoma | M3.5 | 127 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
831 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 111 fatalities, 1,543 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Mar 26, 1976 | EF5 | 62 km | 11.9 mi | 2 |
| Apr 24, 1993 | EF4 | 85 km | 5.5 mi | 7 |
| Mar 26, 1976 | EF4 | 95 km | 10.7 mi | 1 |
| May 26, 1973 | EF4 | 18 km | 3.6 mi | 5 |
| Apr 19, 1968 | EF4 | 92 km | 2.0 mi | 14 |
| May 5, 1961 | EF4 | 100 km | 26.4 mi | 16 |
| May 5, 1960 | EF4 | 84 km | 62.4 mi | 16 |
| May 5, 1960 | EF4 | 60 km | 5.4 mi | 5 |
| Jan 22, 1957 | EF4 | 49 km | 0.1 mi | 10 |
| May 25, 2024 | EF3 | 95 km | 23.9 mi | 2 |
| May 25, 2024 | EF3 | 89 km | 7.9 mi | 0 |
| May 22, 2011 | EF3 | 98 km | 17.9 mi | 0 |
| Dec 31, 2010 | EF3 | 67 km | 21.1 mi | 4 |
| Mar 12, 2006 | EF3 | 54 km | 29.0 mi | 0 |
| Mar 12, 2006 | EF3 | 81 km | 25.0 mi | 0 |
| Jun 1, 1999 | EF3 | 40 km | 4.5 mi | 0 |
| Jun 1, 1999 | EF3 | 40 km | 2.0 mi | 2 |
| May 4, 1999 | EF3 | 54 km | 38.2 mi | 0 |
| May 26, 1997 | EF3 | 84 km | 5.0 mi | 0 |
| Apr 21, 1996 | EF3 | 68 km | 10.1 mi | 2 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (27,091 acres, 2004).
| Year | Name | Acres Burned | Distance |
| 2004 | UNNAMED | 27,091 | 100 km |
| 2009 | BURNT TRUST | 22,578 | 90 km |
| 2007 | UNNAMED | 18,089 | 9 km |
| 1991 | UNNAMED | 16,700 | 97 km |
| 2004 | UNNAMED | 14,138 | 71 km |
| 2016 | PHAROAH | 13,579 | 87 km |
| 2016 | WEST CAVANAL FIRE | 13,100 | 71 km |
| 2004 | UNNAMED | 12,086 | 6 km |
| 1996 | UNNAMED | 9,481 | 95 km |
| 1996 | UNNAMED | 9,165 | 97 km |
| 2005 | PROCTOR | 9,044 | 91 km |
| 2005 | DRIPPING SPRING | 8,510 | 91 km |
| 2017 | MIDDLE RIDGE | 8,501 | 47 km |
| 2016 | DOG HOUSE FIRE | 8,304 | 90 km |
| 2009 | UNNAMED | 6,950 | 88 km |
| 2007 | UNNAMED | 6,657 | 49 km |
| 2017 | HILLTOP | 6,523 | 13 km |
| 2005 | TEXANNA ROAD | 6,139 | 33 km |
| 1991 | UNNAMED | 5,800 | 89 km |
| 2022 | FISHER | 5,741 | 74 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 39°F (4°C) | 2.1 in | Coldest, Driest |
| February | 42°F (6°C) | 2.4 in | |
| March | 51°F (11°C) | 4.1 in | |
| April | 60°F (16°C) | 4.3 in | |
| May | 68°F (20°C) | 5.6 in | Wettest |
| June | 76°F (24°C) | 4.5 in | |
| July | 82°F (28°C) | 2.8 in | Warmest |
| August | 80°F (27°C) | 2.9 in | |
| September | 73°F (23°C) | 5.0 in | |
| October | 62°F (17°C) | 4.4 in | |
| November | 50°F (10°C) | 4.2 in | |
| December | 41°F (5°C) | 3.0 in |
Sour John has a seasonal temperature swing of 43°F / from 39°F in January to 82°F in July. Total annual precipitation is 45.2 inches, with May being the wettest month (5.6") and January the driest (2.1").