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Weather & Climate in Delphos, KS
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Delphos experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 29°F in January while summers reach 81°F in July. The area gets 302 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 31.7 inches. The area receives 17.6 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 39. The city sits at an elevation of 1,310 feet.
Temperature
29°F Jan (-2°C)
81°F Jul (27°C)
| Annual Average | 55.0°F |
| 2% above US avg | |
| January Average | 29°F (-2°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 302 days/yr |
Geography
| Elevation | 1,310 ft (399 m) |
| Area | 0.6 sq mi (1.7 km²) |
| Population Density | 532/sq mi |
| Coordinates | 39.2746°N, 97.7649°W |
| Timezone | America/Chicago |
| County | Ottawa County County |
| Nearest Airport | Salina Regional (SLN) 34 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 16.9 / 100 |
| Social Vulnerability | 33.2 / 100 |
| Community Resilience | 63.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | No Rating |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Very Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
207 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Jun 22, 2019 | 2 km SSE of Zurich, Kansas | M4.6 | 143 km | 3 km |
| Jan 19, 2020 | 2 km W of South Hutchinson, Kansas | M4.5 | 140 km | 5 km |
| Aug 16, 2019 | 3 km W of South Hutchinson, Kansas | M4.2 | 140 km | 5 km |
| Aug 18, 2019 | 5 km WSW of South Hutchinson, Kansas | M4.1 | 142 km | 5 km |
| Jul 17, 2022 | 8 km WSW of Superior, Nebraska | M3.8 | 86 km | 3 km |
| Sep 16, 2019 | 15 km NW of Elmdale, Kansas | M3.8 | 124 km | 5 km |
| Jun 12, 2017 | 5 km SE of Mankato, Kansas | M3.7 | 63 km | 5 km |
| Jun 12, 2017 | 8 km NNE of Jewell, Kansas | M3.7 | 60 km | 5 km |
| May 6, 2021 | 5 km S of Formoso, Kansas | M3.6 | 55 km | 5 km |
| Jun 13, 2017 | 6 km SE of Mankato, Kansas | M3.6 | 62 km | 5 km |
| Mar 12, 2020 | 6 km NNE of Hope, Kansas | M3.5 | 86 km | 5 km |
| Aug 9, 2021 | Kansas | M3.5 | 73 km | 5 km |
| May 30, 1991 | 5 km SE of Zurich, Kansas | M3.5 | 141 km | 5 km |
| May 15, 2025 | 5 km NNW of Herington, Kansas | M3.5 | 93 km | 5 km |
| May 31, 2019 | 2 km SSE of Zurich, Kansas | M3.5 | 144 km | 5 km |
| Oct 10, 2024 | 6 km WSW of Woodbine, Kansas | M3.5 | 84 km | 10 km |
| Mar 8, 2018 | 2 km WSW of Hutchinson, Kansas | M3.4 | 137 km | 11 km |
| Aug 2, 2025 | 6 km ENE of Assaria, Kansas | M3.4 | 66 km | 5 km |
| Apr 4, 2017 | 3 km SSE of Mankato, Kansas | M3.4 | 66 km | 15 km |
| May 21, 2017 | 7 km ESE of Mankato, Kansas | M3.4 | 62 km | 16 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
620 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 6 fatalities, 211 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 25, 2016 | EF4 | 42 km | 25.1 mi | 0 |
| Jun 11, 2008 | EF4 | 92 km | 8.6 mi | 0 |
| May 7, 1993 | EF4 | 77 km | 25.5 mi | 1 |
| Jun 15, 1992 | EF4 | 42 km | 3.0 mi | 0 |
| May 20, 1957 | EF4 | 12 km | 44.6 mi | 0 |
| Jun 4, 1955 | EF4 | 71 km | 61.9 mi | 0 |
| May 1, 2018 | EF3 | 39 km | 15.8 mi | 0 |
| Oct 6, 2016 | EF3 | 60 km | 6.5 mi | 0 |
| May 6, 2015 | EF3 | 68 km | 1.9 mi | 0 |
| May 28, 2013 | EF3 | 27 km | 2.3 mi | 0 |
| May 27, 2013 | EF3 | 93 km | 5.7 mi | 0 |
| Jun 11, 2008 | EF3 | 71 km | 15.3 mi | 1 |
| Jun 11, 2008 | EF3 | 59 km | 16.5 mi | 0 |
| May 29, 2008 | EF3 | 52 km | 18.9 mi | 0 |
| May 29, 2008 | EF3 | 53 km | 55.2 mi | 0 |
| Jun 15, 1992 | EF3 | 6 km | 3.0 mi | 0 |
| Jun 15, 1992 | EF3 | 41 km | 2.0 mi | 0 |
| May 24, 1990 | EF3 | 93 km | 60.0 mi | 0 |
| Mar 13, 1990 | EF3 | 84 km | 13.0 mi | 0 |
| Sep 18, 1986 | EF3 | 75 km | 7.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (14,832 acres, 1988).
| Year | Name | Acres Burned | Distance |
| 1988 | UNNAMED | 14,832 | 60 km |
| 2010 | RANGE 51 | 13,760 | 90 km |
| 2022 | NORTH BRANCH | 10,926 | 88 km |
| 2009 | MA-KILO | 8,935 | 80 km |
| 2024 | AXELTON-BURKLUND | 8,831 | 97 km |
| 2019 | 2019-3238A | 8,632 | 87 km |
| 2002 | UNNAMED | 7,758 | 77 km |
| 1988 | SMOKY HILL AIR FORCE RANGE | 7,665 | 63 km |
| 2013 | UNNAMED | 7,465 | 88 km |
| 2015 | IMPACT | 7,242 | 87 km |
| 2014 | MOYER RANCH | 6,641 | 99 km |
| 2022 | CARLSON | 6,101 | 99 km |
| 2013 | IMPACT COMPLEX | 5,233 | 87 km |
| 1991 | UNNAMED | 5,159 | 77 km |
| 2012 | CALFEX COMPLEX | 5,122 | 80 km |
| 2016 | TAMPA | 4,993 | 87 km |
| 2012 | UNNAMED | 4,425 | 88 km |
| 1988 | UNNAMED | 4,113 | 63 km |
| 2014 | UNNAMED | 3,595 | 84 km |
| 2002 | UNNAMED | 3,401 | 63 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 29°F (-2°C) | 0.7 in | Coldest, Driest |
| February | 33°F (1°C) | 0.8 in | |
| March | 43°F (6°C) | 2.2 in | |
| April | 54°F (12°C) | 2.3 in | |
| May | 64°F (18°C) | 4.5 in | Wettest |
| June | 74°F (24°C) | 4.0 in | |
| July | 81°F (27°C) | 3.9 in | Warmest |
| August | 78°F (26°C) | 3.2 in | |
| September | 69°F (20°C) | 2.8 in | |
| October | 57°F (14°C) | 2.2 in | |
| November | 42°F (5°C) | 1.4 in | |
| December | 31°F (-0°C) | 0.9 in |
Delphos has a seasonal temperature swing of 52°F / from 29°F in January to 81°F in July. Total annual precipitation is 29.0 inches, with May being the wettest month (4.5") and January the driest (0.7").