Weather & Climate in Monona, IA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Monona experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 17°F in January while summers reach 72°F in July. Annual precipitation totals 38.9 inches. The area receives 39.8 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 1,188 feet.
Temperature
17°F Jan (-9°C)
72°F Jul (22°C)
| Annual Average | 46.0°F |
| 15% below US avg | |
| January Average | 17°F (-9°C) |
| July Average | 72°F (22°C) |
Geography
| Elevation | 1,188 ft (362 m) |
| Area | 1.2 sq mi (3.0 km²) |
| Population Density | 1,190/sq mi |
| Coordinates | 43.0498°N, 91.3911°W |
| Timezone | America/Chicago |
| County | Allamakee County County |
| Nearest Airport | Dubuque Regional (DBQ) 57 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 38.2 / 100 |
| Social Vulnerability | 55.9 / 100 |
| Community Resilience | 40.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tornado History
454 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 10 fatalities, 346 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 15, 1968 | EF5 | 61 km | 13.1 mi | 5 |
| Mar 13, 1990 | EF4 | 91 km | 19.0 mi | 0 |
| Aug 12, 1974 | EF4 | 78 km | 5.0 mi | 0 |
| Jul 12, 1971 | EF4 | 88 km | 10.9 mi | 0 |
| May 10, 1953 | EF4 | 93 km | 162.0 mi | 2 |
| Aug 7, 2021 | EF3 | 55 km | 9.4 mi | 0 |
| May 25, 2008 | EF3 | 72 km | 32.0 mi | 0 |
| Jul 27, 1995 | EF3 | 55 km | 20.0 mi | 0 |
| Jul 19, 1994 | EF3 | 75 km | 23.0 mi | 0 |
| Jun 19, 1993 | EF3 | 98 km | 14.0 mi | 0 |
| Jun 19, 1993 | EF3 | 71 km | 9.0 mi | 0 |
| Jul 13, 1992 | EF3 | 99 km | 5.0 mi | 0 |
| May 30, 1985 | EF3 | 25 km | 34.0 mi | 2 |
| Jun 5, 1980 | EF3 | 70 km | 26.9 mi | 0 |
| Jul 12, 1971 | EF3 | 84 km | 0.1 mi | 0 |
| Jun 24, 1971 | EF3 | 35 km | 0.1 mi | 1 |
| Sep 9, 1970 | EF3 | 85 km | 4.7 mi | 0 |
| May 5, 1965 | EF3 | 71 km | 65.2 mi | 0 |
| Sep 3, 1964 | EF3 | 64 km | 17.1 mi | 0 |
| May 7, 1964 | EF3 | 65 km | 2.3 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 17°F (-9°C) | 1.1 in | Coldest, Driest |
| February | 20°F (-7°C) | 1.2 in | |
| March | 33°F (0°C) | 2.1 in | |
| April | 46°F (8°C) | 4.1 in | |
| May | 58°F (15°C) | 5.0 in | |
| June | 68°F (20°C) | 5.9 in | Wettest |
| July | 72°F (22°C) | 4.5 in | Warmest |
| August | 70°F (21°C) | 4.4 in | |
| September | 62°F (16°C) | 4.0 in | |
| October | 49°F (9°C) | 3.0 in | |
| November | 35°F (2°C) | 2.1 in | |
| December | 23°F (-5°C) | 1.6 in |
Monona has a seasonal temperature swing of 55°F / from 17°F in January to 72°F in July. Total annual precipitation is 38.9 inches, with June being the wettest month (5.9") and January the driest (1.1").