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Weather & Climate in Little Sioux, IA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Little Sioux experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 19°F in January while summers reach 74°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 39.8 inches. The area receives 45.6 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 1,037 feet.
Temperature
19°F Jan (-7°C)
74°F Jul (23°C)
| Annual Average | 48.1°F |
| 11% below US avg | |
| January Average | 19°F (-7°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 1,037 ft (316 m) |
| Area | 0.4 sq mi (1.0 km²) |
| Population Density | 321/sq mi |
| Coordinates | 41.8082°N, 96.0274°W |
| Timezone | America/Chicago |
| County | Burt County County |
| Nearest Airport | Eppley Airfield (OMA) 36 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 20.7 / 100 |
| Social Vulnerability | 20.5 / 100 |
| Community Resilience | 56.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
5 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.6.
| Feb 6, 1996 | 1 km N of Wausa, Nebraska | M3.6 | 147 km | 5 km |
| Jul 16, 2004 | 6 km SSE of Riverton, Iowa | M3.5 | 137 km | 5 km |
| Aug 9, 1997 | 9 km NW of Clarkson, Nebraska | M3.4 | 96 km | 5 km |
| Feb 5, 2025 | 8 km SSE of Tilden, Nebraska | M2.7 | 148 km | 5 km |
| Jun 30, 2021 | 4 km E of Rembrandt, Iowa | M2.7 | 136 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
570 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 17 fatalities, 510 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 26, 2024 | EF4 | 72 km | 31.9 mi | 0 |
| Jun 16, 2014 | EF4 | 86 km | 11.5 mi | 1 |
| Jun 16, 2014 | EF4 | 93 km | 23.9 mi | 1 |
| Jun 16, 2014 | EF4 | 78 km | 15.8 mi | 0 |
| Oct 4, 2013 | EF4 | 59 km | 24.7 mi | 0 |
| Oct 4, 2013 | EF4 | 94 km | 18.3 mi | 0 |
| May 27, 1995 | EF4 | 98 km | 36.0 mi | 0 |
| Jul 7, 1977 | EF4 | 67 km | 22.6 mi | 0 |
| Jun 26, 1976 | EF4 | 53 km | 5.1 mi | 0 |
| May 6, 1975 | EF4 | 71 km | 8.0 mi | 3 |
| Aug 13, 1952 | EF4 | 80 km | 26.7 mi | 0 |
| Jul 15, 1950 | EF4 | 48 km | 10.0 mi | 0 |
| Apr 26, 2024 | EF3 | 74 km | 13.3 mi | 0 |
| Apr 26, 2024 | EF3 | 62 km | 19.1 mi | 0 |
| Apr 26, 2024 | EF3 | 64 km | 40.3 mi | 1 |
| Apr 9, 2011 | EF3 | 42 km | 3.4 mi | 0 |
| Apr 9, 2011 | EF3 | 86 km | 10.1 mi | 0 |
| Jun 11, 2008 | EF3 | 8 km | 14.2 mi | 4 |
| May 16, 1999 | EF3 | 23 km | 6.2 mi | 0 |
| May 16, 1999 | EF3 | 27 km | 7.5 mi | 2 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
2 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (4,195 acres, 2005).
| Year | Name | Acres Burned | Distance |
| 2005 | UNNAMED | 4,195 | 86 km |
| 2010 | UNNAMED | 629 | 47 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 19°F (-7°C) | 0.7 in | Coldest, Driest |
| February | 27°F (-3°C) | 0.7 in | |
| March | 38°F (3°C) | 2.2 in | |
| April | 51°F (11°C) | 3.1 in | |
| May | 62°F (17°C) | 4.3 in | Wettest |
| June | 72°F (22°C) | 4.1 in | |
| July | 74°F (23°C) | 3.5 in | Warmest |
| August | 73°F (23°C) | 3.4 in | |
| September | 65°F (18°C) | 3.3 in | |
| October | 53°F (11°C) | 2.4 in | |
| November | 37°F (3°C) | 1.5 in | |
| December | 25°F (-4°C) | 0.9 in |
Little Sioux has a seasonal temperature swing of 55°F / from 19°F in January to 74°F in July. Total annual precipitation is 30.1 inches, with May being the wettest month (4.3") and January the driest (0.7").