Plymouth storm history
Storm events recorded in Plymouth, Iowa between 1950 and 2025.
994
Total events
52
Tornadoes
274
Hail
136
Floods
4
Deaths
$22.6M
Property damage
Most significant events
Strongest tornadoes, deadliest events, and biggest damage in this county. Up to 50 shown.
Tornado F3 Tornado
Tornado F3 Tornado
A mix of sleet, freezing rain and freezing drizzle overnight and much of the morning accumulated ice to around a tenth of an inch, especially on elevated surfaces. Slick roadways resulted in an rollover accident along U.S. Highway 75 northwest of Le Mars, causing a pair of (indir…
Snowfall was briefly moderate to heavy during the afternoon, accumulating to 3.5 inches at Le Mars and 3.0 inches at Brunsville and Akron, resulting in dangerous travel conditions. Following this snowfall, slick road conditions which lingered due to drifting snow during the early…
New snowfall of 5 to 7 inches was accompanied by north to northwest winds sustained at 30 to 40 mph, with gusts up to 50 mph. These strong winds produced widespread blizzard conditions beginning a little after midnight on December 9th. Schools and many businesses were closed on D…
Rainfall amounts across Plymouth County from June 20-22 ranged from only a few hundredths across southern areas to around 2 inches across northern areas. Farther north and upstream, 6 to 10 inches of rain fell across portions of southeast South Dakota and northwest Iowa, with loc…
Up to 25 gravel roads were under water across Plymouth County. Other flooding resulted in extensive damage to public infrastructure including numerous county and township roads, culverts, and some bridges.
Mostly F1 strength, intermittent path at beginning and end.
Winter Weather Winter Weather
Intermittent short duration near-blizzard conditions occurred, divided by a longer improvement in conditions as falling snow ended for a time during the late afternoon and evening. Gusty northwest winds from 35 to 45 mph were concurrent with light snowfall, which totaled 2.0 inch…
High Wind High Wind
Sustained winds reached around 40 to 43 mph at Le Mars.
Cold/Wind Chill Cold/Wind Chill
Wind chills reached as low as -28 degrees at Le Mars and -27 degrees 4 miles southeast of Remsen.
Winter Weather Winter Weather
Snowfall totaled 4.0 inches in Remsen and 3.5 inches in Le Mars.
High Wind High Wind
Synoptic northwest winds were occasionally sustained from 40 to 42 mph at a personal weather station 4 miles south-southeast of Remsen.
Winter Weather Winter Weather
Snowfall totaled 5.0 inches at Remsen, 4.4 inches at Le Mars, and 4.0 inches at Brunsville and 6.1 miles southeast of Westfield.
Winter Weather Winter Weather
A long-duration snowfall totaled 5.8 inches at Remsen and 5.0 inches at Le Mars. During a brief break in snowfall during the evening of November 28, a period of light freezing rain and freezing drizzle resulted in a few hundredths of an inch ice accumulation.
High Wind High Wind
Sustained winds reached 40 to 44 mph at times with a peak gust of 60 mph at a personal weather station 5 miles north-northwest of Sioux City.
Winter Weather Winter Weather
Snowfall totaled 5.0 inches 6 miles southeast of Westfield and 3.0 inches at Remsen.
Hail Hail
Excessive Heat Excessive Heat
Dangerous heat index values peaked as high as 117 degrees near Westfield, 116 degrees 4 miles south of Remsen, 114 degrees 6 miles west of Kingsley, and 111 degrees 6 miles west of Brunsville on August 16.
Excessive Heat Excessive Heat
Dangerous heat index values peaked as high as 110 degrees 5 miles north of Sioux City, 107 degrees near Westfield, and 106 degrees 5 miles west of Brunsville.
Flood Flood
The Floyd River at Le Mars briefly rose above flood stage on the afternoon of July 31st, cresting around 0.1 feet above flood stage (20.1 ft). The river then quickly fell below flood stage on the evening of July 31st.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts were measured by a personal weather station.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts were measured by a personal weather station.
Excessive Heat Excessive Heat
Dangerous heat index readings reached an afternoon peak on July 27 as high as 120 degrees near Remsen, 119 degrees near Akron, 118 degrees near Westfield, and 111 degrees at Le Mars.
Excessive Heat Excessive Heat
Dangerous heat index readings reached afternoon peaks as high as 113 degrees 4 miles south of Remsen and 7 miles west of Hinton, and 108 degrees 6 miles west of Kingsley and near Akron on July 23.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts measured by AWOS station KLRJ at the Le Mars Airport.
Thunderstorm Wind Thunderstorm Wind
A period of severe wind gusts was measured by a personal weather station, with the peak wind gust at 0300 CST.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts produced tree damage throughout Le Mars and caused damage to property at a local campground. Power outages were reported across portions of the city.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm wind gusts snapped a large tree in half in Remsen.
Excessive Heat Excessive Heat
Daily afternoon and evening heat indices ranged from 105 to 118 degrees with a maximum heat index of 118 degrees at a personal weather station in Remsen, 117 degrees just north of Sioux City, 113 degrees in Le Mars, and 109 degrees near Westfield on June 20.
Thunderstorm Wind Thunderstorm Wind
Power lines and several trees were brought down by thunderstorm winds near the intersection of County Roads K22 and C60.
Hail Hail
Hail from pea to nickel size covered the ground.
Hail Hail
During the mainly pea to less than dime size hail, there were infrequent larger stones from quarter to half-dollar size.
Hail Hail
Significant damage occurred to campers at the Willow Creek Campground from wind-driven hail. Hail lasted for around 10 minutes.
Hail Hail
Hail up to quarter size was observed at the golf course.
Hail Hail
Hail was mostly dime to nickel size, but some stones were as big as a quarter.
High Wind High Wind
Sustained easterly winds knocked down several large trees in Remsen with significant tree damage in Akron. Wind speeds were estimated at 60 to 65 mph.
High Wind High Wind
An extended period of gusty winds reached speeds as high as 65 mph 7 miles south-southwest of Marcus, 60 mph near Struble, and 58 mph near Kingsley.
Hail Hail
Hail Hail
Nickel to quarter size hail fell for around 6 minutes, with a few stones slightly larger than quarters.
Hail Hail
Hail Hail
Hail Hail
Quarter to half-dollar size hail was reported.
Hail Hail
Hail Hail
Blizzard Blizzard
There was a very sharp gradient in snowfall across the county with the highest amounts across the southeast corner. Snowfall totaled 3.3 inches in Le Mars and 3.2 inches in Remsen. Northwest winds gusted between 35 and 45 mph with a peak gust of 47 mph reported by the AWOS at Le …
Events by year
| Year | Events | Tornadoes |
|---|---|---|
| 2025 | 47 | 0 |
| 2024 | 48 | 3 |
| 2023 | 39 | 0 |
| 2022 | 27 | 0 |
| 2021 | 37 | 1 |
| 2020 | 29 | 0 |
| 2019 | 41 | 0 |
| 2018 | 48 | 0 |
| 2017 | 18 | 0 |
| 2016 | 27 | 1 |
| 2015 | 21 | 1 |
| 2014 | 26 | 0 |
| 2013 | 17 | 3 |
| 2012 | 30 | 0 |
| 2011 | 33 | 1 |
| 2010 | 38 | 0 |
| 2009 | 19 | 0 |
| 2008 | 23 | 0 |
| 2007 | 28 | 0 |
| 2006 | 18 | 0 |
| 2005 | 31 | 1 |
| 2004 | 45 | 0 |
| 2003 | 28 | 0 |
| 2002 | 22 | 0 |
| 2001 | 30 | 1 |
| 2000 | 16 | 0 |
| 1999 | 11 | 1 |
| 1998 | 8 | 1 |
| 1997 | 15 | 3 |
| 1996 | 19 | 1 |
| 1995 | 3 | 0 |
| 1994 | 25 | 2 |
| 1993 | 1 | 0 |
| 1992 | 8 | 0 |
| 1991 | 5 | 2 |
| 1990 | 5 | 0 |
| 1989 | 2 | 1 |
| 1988 | 5 | 0 |
| 1987 | 2 | 0 |
| 1986 | 7 | 1 |
| 1985 | 4 | 1 |
| 1984 | 3 | 1 |
| 1983 | 5 | 0 |
| 1982 | 1 | 0 |
| 1981 | 1 | 0 |
| 1980 | 12 | 2 |
| 1979 | 1 | 1 |
| 1978 | 5 | 1 |
| 1977 | 3 | 2 |
| 1976 | 2 | 0 |
| 1975 | 5 | 1 |
| 1974 | 4 | 0 |
| 1973 | 5 | 1 |
| 1972 | 3 | 1 |
| 1971 | 3 | 0 |
| 1970 | 6 | 1 |
| 1969 | 2 | 0 |
| 1968 | 3 | 1 |
| 1967 | 3 | 2 |
| 1965 | 3 | 2 |
| 1964 | 7 | 5 |
| 1963 | 3 | 2 |
| 1962 | 1 | 0 |
| 1960 | 1 | 0 |
| 1959 | 1 | 0 |
| 1958 | 1 | 1 |
| 1955 | 1 | 0 |
| 1954 | 1 | 1 |
| 1953 | 1 | 1 |
| 1951 | 1 | 1 |