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Weather & Climate in Derby, KS
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Derby enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 32°F in January while summers reach 80°F in July. The area gets 317 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 38.3 inches. The area receives 8.1 inches of snow annually. Air quality is rated Good with a median AQI of 39. The city sits at an elevation of 1,302 feet.
Temperature
32°F Jan (0°C)
80°F Jul (27°C)
| Annual Average | 56.7°F |
| 5% above US avg | |
| January Average | 32°F (0°C) |
| July Average | 80°F (27°C) |
| Sunny Days | 317 days/yr |
Geography
| Elevation | 1,302 ft (397 m) |
| Area | 9.6 sq mi (24.8 km²) |
| Population Density | 2,322/sq mi |
| Coordinates | 37.5596°N, 97.2558°W |
| Timezone | America/Chicago |
| County | Sedgwick County County |
| Nearest Airport | Wichita Dwight D Eisenhower Ntl (ICT) 12 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 96.6 / 100 |
| Social Vulnerability | 29.9 / 100 |
| Community Resilience | 70.4 / 100 |
Hazard Breakdown
| Tornado | Very High |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively High |
| Hail | Relatively High |
| Strong Wind | Relatively High |
| Heat Wave | Relatively High |
| Winter Weather | Very High |
| Lightning | Very High |
| Ice Storm | Very High |
| Drought | Relatively Low |
| Cold Wave | Very High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
3,291 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.8.
| Sep 3, 2016 | 14 km NW of Pawnee, Oklahoma | M5.8 | 129 km | 6 km |
| Apr 7, 2018 | 5 km WNW of Lucien, Oklahoma | M4.6 | 143 km | 6 km |
| Jan 31, 2022 | 7 km NW of Medford, Oklahoma | M4.5 | 92 km | 8 km |
| Jan 19, 2020 | 2 km W of South Hutchinson, Kansas | M4.5 | 82 km | 5 km |
| Jun 9, 2018 | 8 km E of Nescatunga, Oklahoma | M4.4 | 114 km | 10 km |
| Jul 20, 2015 | 7 km SSE of Byron, Oklahoma | M4.4 | 119 km | 4 km |
| May 17, 2019 | 8 km E of Pond Creek, Oklahoma | M4.4 | 107 km | 5 km |
| Jul 29, 2014 | 9 km E of Nescatunga, Oklahoma | M4.3 | 114 km | 5 km |
| Sep 8, 2017 | 9 km ESE of Jefferson, Oklahoma | M4.3 | 103 km | 6 km |
| Jun 17, 2015 | 6 km ESE of Covington, Oklahoma | M4.3 | 144 km | 6 km |
| Mar 4, 2018 | 4 km N of Breckinridge, Oklahoma | M4.2 | 128 km | 8 km |
| Aug 16, 2019 | 3 km W of South Hutchinson, Kansas | M4.2 | 82 km | 5 km |
| Feb 19, 2021 | 6 km SW of Manchester, Oklahoma | M4.2 | 100 km | 7 km |
| Jan 26, 2015 | 5 km NNE of Medford, Oklahoma | M4.2 | 88 km | 7 km |
| Feb 5, 2021 | 5 km WNW of Lucien, Oklahoma | M4.2 | 143 km | 7 km |
| Feb 5, 2015 | 8 km NE of Cherokee, Oklahoma | M4.2 | 124 km | 4 km |
| Mar 5, 2018 | 5 km NNW of Breckinridge, Oklahoma | M4.2 | 127 km | 8 km |
| Jan 27, 2015 | 3 km SE of Perry, Oklahoma | M4.2 | 144 km | 3 km |
| Jul 17, 2016 | 5 km W of Lucien, Oklahoma | M4.2 | 144 km | 5 km |
| Jun 21, 2020 | 9 km NW of Perry, Oklahoma | M4.2 | 134 km | 8 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
800 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 147 fatalities, 1,233 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 26, 1991 | EF5 | 22 km | 46.0 mi | 17 |
| Mar 13, 1990 | EF5 | 67 km | 22.0 mi | 1 |
| Mar 13, 1990 | EF5 | 71 km | 48.0 mi | 1 |
| May 25, 1955 | EF5 | 93 km | 28.4 mi | 20 |
| May 25, 1955 | EF5 | 76 km | 56.4 mi | 80 |
| May 12, 2004 | EF4 | 73 km | 1.2 mi | 0 |
| May 3, 1999 | EF4 | 30 km | 24.0 mi | 6 |
| Jun 15, 1992 | EF4 | 97 km | 6.0 mi | 0 |
| Apr 26, 1991 | EF4 | 55 km | 25.0 mi | 1 |
| Mar 26, 1991 | EF4 | 83 km | 13.0 mi | 0 |
| Jun 23, 1969 | EF4 | 36 km | 8.7 mi | 0 |
| Jun 10, 1958 | EF4 | 38 km | 9.0 mi | 15 |
| Apr 2, 1956 | EF4 | 86 km | 108.3 mi | 2 |
| Apr 29, 2022 | EF3 | 9 km | 12.7 mi | 0 |
| Jun 26, 2018 | EF3 | 88 km | 9.2 mi | 0 |
| Jul 7, 2016 | EF3 | 84 km | 4.2 mi | 0 |
| Jul 13, 2015 | EF3 | 95 km | 5.3 mi | 0 |
| May 6, 2015 | EF3 | 47 km | 16.5 mi | 0 |
| May 19, 2012 | EF3 | 89 km | 9.7 mi | 0 |
| May 19, 2012 | EF3 | 91 km | 9.7 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (60,976 acres, 2014).
| Year | Name | Acres Burned | Distance |
| 2014 | UNNAMED | 60,976 | 69 km |
| 2002 | UNNAMED | 26,655 | 89 km |
| 2016 | UNNAMED | 15,100 | 92 km |
| 2016 | FERGUSON RANCH | 13,625 | 66 km |
| 1991 | UNNAMED | 13,063 | 76 km |
| 1989 | UNNAMED | 12,241 | 73 km |
| 1996 | UNNAMED | 10,911 | 86 km |
| 2016 | BURMAC | 10,668 | 69 km |
| 2023 | COWLEY | 9,379 | 87 km |
| 1994 | UNNAMED | 8,987 | 96 km |
| 2004 | UNNAMED | 8,183 | 66 km |
| 2002 | UNNAMED | 8,105 | 52 km |
| 2017 | HIGHLANDS | 7,418 | 90 km |
| 2015 | UNNAMED | 7,331 | 96 km |
| 2022 | COTTONWOOD COMPLEX | 6,487 | 70 km |
| 2006 | TWELTH STREET | 6,282 | 68 km |
| 1996 | UNNAMED | 6,069 | 50 km |
| 2003 | UNNAMED | 5,841 | 97 km |
| 2018 | RICE COUNTY | 5,504 | 99 km |
| 2015 | UNNAMED | 5,220 | 72 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (0°C) | 0.9 in | Coldest, Driest |
| February | 37°F (3°C) | 1.0 in | |
| March | 47°F (8°C) | 2.7 in | |
| April | 57°F (14°C) | 3.0 in | |
| May | 66°F (19°C) | 4.3 in | |
| June | 76°F (24°C) | 4.6 in | Wettest |
| July | 80°F (27°C) | 3.4 in | Warmest |
| August | 80°F (26°C) | 3.2 in | |
| September | 71°F (22°C) | 3.4 in | |
| October | 59°F (15°C) | 2.5 in | |
| November | 45°F (7°C) | 2.1 in | |
| December | 35°F (1°C) | 1.3 in |
Derby has a seasonal temperature swing of 48°F / from 32°F in January to 80°F in July. Total annual precipitation is 32.5 inches, with June being the wettest month (4.6") and January the driest (0.9").