Otranto, IA

Full City Profile · Iowa · Mitchell County County

3.1 /5.0
B Good
34 Population 83/sq mi density
43°F Avg Temperature
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
B
Education
3.1 / 5.0
26.5% bachelor's degree or higher
Otranto has a cool climate with an average annual temperature of 43°F (6°C). Winters average 13°F in January while summers reach 69°F in July. Annual precipitation totals 38.4 inches. The area receives 47.7 inches of snow annually.

Temperature

13°F Jan (-11°C) 69°F Jul (21°C)
Annual Average43.0°F
20% below US avg
January Average13°F (-11°C)
July Average69°F (21°C)

Geography

Elevation1,168 ft (356 m)
Area0.4 sq mi (1.1 km²)
Population Density83/sq mi
Coordinates43.4609°N, 92.9863°W
TimezoneAmerica/Chicago
CountyMitchell County County
Nearest AirportNortheast Iowa Regional (CCY)
33 miles away

Precipitation & Snow

Annual Rainfall 38.4"
1% above US avg
Snowfall 47.7"
Wettest Month (Jun) 5.78"
Driest Month (Jan) 1.08"

Air Quality

Natural Hazard Risk

Overall RiskVery Low
Risk Score37.7 / 100
Social Vulnerability17.5 / 100
Community Resilience85.9 / 100

Hazard Breakdown

Tornado Relatively Low
Hurricane No Rating
Earthquake Very Low
Wildfire Very Low
Flood Relatively Low
Hail Relatively Low
Strong Wind Relatively High
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)

Earthquake History

1 earthquake (M2.5+) within 150 km since 1990. Strongest: M2.8. Most recent: M2.8 on Apr 25, 2017.

Apr 25, 2017 Near Mankato, Minnesota M2.8 115 km
Source: USGS (M2.5+, 1990-2025)

Tornado History

592 tornadoes (EF0+) within 100 km since 1950. Strongest: EF5. Total: 41 fatalities, 910 injuries.

Date Rating Distance Fatalities
May 15, 1968 EF5 78 km 13
Oct 14, 1966 EF5 91 km 6
Jun 17, 2010 EF4 54 km 1
Jul 12, 1971 EF4 50 km 0
Apr 30, 1967 EF4 38 km 5
Apr 30, 1967 EF4 15 km 0
Apr 30, 1967 EF4 23 km 0
Apr 30, 1967 EF4 57 km 6
May 5, 1965 EF4 24 km 0
Sep 16, 1962 EF4 71 km 0
Sep 1, 1961 EF4 76 km 0
May 10, 1953 EF4 61 km 0
May 10, 1953 EF4 47 km 2
Jun 12, 2013 EF3 86 km 0
Jun 17, 2010 EF3 46 km 0
Jun 17, 2010 EF3 39 km 0
Jun 17, 2010 EF3 44 km 0
Jun 11, 2004 EF3 36 km 0
Jul 19, 1994 EF3 62 km 0
Jun 18, 1994 EF3 65 km 0
Source: NOAA SPC (EF0+, 1950-2024)

Wildfire History

1 wildfire (100+ acres) within 100 km. Largest: SNAKE TRAIL (1,496 ac, 2024).

Year Name Acres Distance
2024 SNAKE TRAIL 1,496 81 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 13°F (-11°C) 1.1 in Coldest, Driest
February 17°F (-8°C) 1.2 in
March 30°F (-1°C) 2.1 in
April 43°F (6°C) 4.1 in
May 56°F (13°C) 5.5 in
June 66°F (19°C) 5.8 in Wettest
July 69°F (21°C) 4.3 in Warmest
August 67°F (19°C) 4.0 in
September 59°F (15°C) 3.7 in
October 46°F (8°C) 3.2 in
November 32°F (-0°C) 2.0 in
December 19°F (-7°C) 1.5 in

Otranto has a seasonal temperature swing of 56°F / from 13°F in January to 69°F in July. Total annual precipitation is 38.4 inches, with June being the wettest month (5.8") and January the driest (1.1").

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