Weather & Climate in Marble Rock, IA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Marble Rock experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 17°F in January while summers reach 72°F in July. Annual precipitation totals 37.7 inches. The area receives 37.5 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 1,004 feet.
Temperature
17°F Jan (-9°C)
72°F Jul (22°C)
| Annual Average | 46.5°F |
| 14% below US avg | |
| January Average | 17°F (-9°C) |
| July Average | 72°F (22°C) |
Geography
| Elevation | 1,004 ft (306 m) |
| Area | 0.9 sq mi (2.3 km²) |
| Population Density | 240/sq mi |
| Coordinates | 42.9646°N, 92.8678°W |
| Timezone | America/Chicago |
| County | Butler County County |
| Nearest Airport | Northeast Iowa Regional (CCY) 15 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 27.1 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 89.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tornado History
647 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 53 fatalities, 1,194 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 25, 2008 | EF5 | 46 km | 41.0 mi | 9 |
| May 15, 1968 | EF5 | 30 km | 62.1 mi | 13 |
| May 15, 1968 | EF5 | 83 km | 13.1 mi | 5 |
| Oct 14, 1966 | EF5 | 66 km | 9.7 mi | 6 |
| Jun 17, 2010 | EF4 | 92 km | 16.9 mi | 1 |
| May 30, 1989 | EF4 | 80 km | 11.0 mi | 0 |
| Jul 12, 1971 | EF4 | 45 km | 10.9 mi | 0 |
| Apr 30, 1967 | EF4 | 81 km | 38.7 mi | 5 |
| Apr 30, 1967 | EF4 | 59 km | 7.6 mi | 0 |
| Apr 30, 1967 | EF4 | 45 km | 13.3 mi | 0 |
| Aug 26, 1965 | EF4 | 92 km | 4.7 mi | 1 |
| May 5, 1965 | EF4 | 35 km | 41.6 mi | 0 |
| Sep 1, 1961 | EF4 | 23 km | 26.6 mi | 0 |
| May 10, 1953 | EF4 | 66 km | 162.0 mi | 2 |
| May 10, 1953 | EF4 | 54 km | 26.6 mi | 0 |
| Jul 19, 2018 | EF3 | 99 km | 8.4 mi | 0 |
| Jun 12, 2013 | EF3 | 67 km | 6.2 mi | 0 |
| Jun 17, 2010 | EF3 | 93 km | 5.0 mi | 0 |
| Jun 17, 2010 | EF3 | 93 km | 18.2 mi | 0 |
| May 25, 2008 | EF3 | 80 km | 32.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 17°F (-9°C) | 1.0 in | Coldest, Driest |
| February | 21°F (-6°C) | 1.1 in | |
| March | 34°F (1°C) | 1.9 in | |
| April | 47°F (9°C) | 3.7 in | |
| May | 59°F (15°C) | 5.1 in | |
| June | 69°F (20°C) | 6.1 in | Wettest |
| July | 72°F (22°C) | 4.9 in | Warmest |
| August | 70°F (21°C) | 4.3 in | |
| September | 62°F (17°C) | 3.8 in | |
| October | 50°F (10°C) | 2.6 in | |
| November | 35°F (2°C) | 1.7 in | |
| December | 23°F (-5°C) | 1.4 in |
Marble Rock has a seasonal temperature swing of 55°F / from 17°F in January to 72°F in July. Total annual precipitation is 37.7 inches, with June being the wettest month (6.1") and January the driest (1.0").