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Weather & Climate in Agency, IA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Agency experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 23°F in January while summers reach 76°F in July. The area gets 275 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 39.1 inches. The area receives 24.2 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 809 feet.
Temperature
23°F Jan (-5°C)
76°F Jul (24°C)
| Annual Average | 51.2°F |
| 5% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 76°F (24°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 809 ft (247 m) |
| Area | 0.6 sq mi (1.5 km²) |
| Population Density | 905/sq mi |
| Coordinates | 40.9970°N, 92.3073°W |
| Timezone | America/Chicago |
| County | Davis County County |
| Nearest Airport | Ottumwa Regional (OTM) 11 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 50.4 / 100 |
| Social Vulnerability | 80.8 / 100 |
| Community Resilience | 7.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively High |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tornado History
478 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 14 fatalities, 257 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Mar 31, 2023 | EF4 | 42 km | 19.9 mi | 0 |
| May 13, 1995 | EF4 | 96 km | 50.0 mi | 0 |
| Aug 12, 1974 | EF4 | 84 km | 2.0 mi | 0 |
| Jan 24, 1967 | EF4 | 69 km | 25.7 mi | 0 |
| May 20, 1959 | EF4 | 78 km | 17.2 mi | 0 |
| May 10, 1953 | EF4 | 87 km | 6.4 mi | 0 |
| Mar 31, 2023 | EF3 | 8 km | 26.1 mi | 0 |
| Mar 5, 2022 | EF3 | 91 km | 11.3 mi | 1 |
| May 27, 2019 | EF3 | 45 km | 7.3 mi | 0 |
| Jul 19, 2018 | EF3 | 74 km | 9.2 mi | 0 |
| Jun 22, 2015 | EF3 | 70 km | 11.1 mi | 0 |
| Jun 1, 2007 | EF3 | 98 km | 15.8 mi | 0 |
| Apr 8, 1999 | EF3 | 29 km | 16.0 mi | 0 |
| May 15, 1998 | EF3 | 58 km | 47.0 mi | 0 |
| May 1, 1973 | EF3 | 81 km | 3.6 mi | 2 |
| Apr 20, 1973 | EF3 | 67 km | 9.5 mi | 0 |
| Apr 21, 1967 | EF3 | 32 km | 0.1 mi | 0 |
| Apr 16, 1967 | EF3 | 37 km | 19.4 mi | 2 |
| Jan 24, 1967 | EF3 | 91 km | 4.3 mi | 1 |
| Jan 24, 1967 | EF3 | 24 km | 25.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
4 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (939 acres, 2009).
| Year | Name | Acres Burned | Distance |
| 2009 | UNNAMED | 939 | 97 km |
| 2010 | FOLEY | 786 | 96 km |
| 2011 | ACE AUTO | 676 | 94 km |
| 2011 | IRCP WUI ROFAE #2 FY11 | 510 | 100 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 1.1 in | Coldest |
| February | 28°F (-2°C) | 1.0 in | Driest |
| March | 40°F (4°C) | 2.4 in | |
| April | 52°F (11°C) | 3.6 in | |
| May | 62°F (17°C) | 4.2 in | |
| June | 71°F (22°C) | 4.0 in | |
| July | 76°F (24°C) | 4.6 in | Warmest, Wettest |
| August | 74°F (23°C) | 4.1 in | |
| September | 66°F (19°C) | 4.4 in | |
| October | 54°F (12°C) | 2.8 in | |
| November | 40°F (4°C) | 2.2 in | |
| December | 28°F (-3°C) | 1.6 in |
Agency has a seasonal temperature swing of 53°F / from 23°F in January to 76°F in July. Total annual precipitation is 36.0 inches, with July being the wettest month (4.6") and February the driest (1.0").