St. Clair County, MO Environment & Hazard Risk

• DroughtRelatively Moderate$699K/yr expected annual loss, about 13 events a year
• Ice stormRelatively Moderate$147K/yr expected annual loss, about once every 2 years
• Winter weatherRelatively Moderate$79.6K/yr expected annual loss, about 11 events a year
• Heat waveRelatively Low$362K/yr expected annual loss, about 15 events a year
• WildfireVery Low$39.6K/yr expected annual loss, about once every 561 years
• Cold waveRelatively Low$621K/yr expected annual loss, about 2.3 events a year
• HailRelatively Low$146K/yr expected annual loss, about 6.5 events a year
• EarthquakeVery Low$120K/yr expected annual loss, about once every 644 years
• Strong windRelatively Low$298K/yr expected annual loss, about 4.8 events a year
• TornadoRelatively Low$510K/yr expected annual loss, about once every 2 years
• LightningRelatively Low$87.5K/yr expected annual loss, about 53 events a year
• LandslideVery Low$268/yr expected annual loss, about once every 4 years
• HurricaneVery Low$4,382/yr expected annual loss, about once every 100 years

Bars show the national percentile score (0 to 100) for each hazard. Dollar figures are expected annual losses to buildings, people and crops. Not rated here: avalanche, coastal flooding, riverine flooding, tsunami, volcanic activity.

Check the flood zone for an address

Homes in high-risk flood zones

0

• Hail144
• Thunderstorm Wind126
• Flash Flood55 · 2 deaths
• Drought31
• Winter Storm25
• Flood17
• Tornado16
• Winter Weather12
• Heavy Rain11
• Heat9

• Flash Flood07/25/2001

  Osceola, St. Clair County

  2 deaths

  What happened

  Excessive rainfall of three to five inches fell over northern and eastern portions of St. Clair County between 6 and 9 am. Occupants of a minivan went across a low water crossing that was already flooded. The van was partially washed into the creek, but the car remained upright and did not turn over. Two females, one an adult, the other a 17 month old infant, went out of their van and were swept away by the fast flowing water.

• Drought12/01/2023

  St. Clair

  $11.7M damage

  What happened

  Enough rain fell towards the middle to end of the month to improve conditions back to moderate drought. Farm and stock ponds continued to see impacts along with ground water levels and reservoirs. Crop loss estimates notated in this month encompass losses from continued drought since spring 2023.

• Frost/Freeze04/08/2007

  St. Clair

  $7.7M damage

  What happened

  Unusually warm conditions during the month of March caused early season growth in vegetation across the Missouri Ozarks. Hay along with the wheat crop had began to mature. During the nights of April 7th through the 9th, temperatures dropped into the upper teens to mid 20s, causing a hard freeze on matured vegetation. The wheat crop suffered approximately 90% damage. Hay crops along with fescue seed also sustained major damage. Total crop losses for 34 counties across the southwestern quadrant of Missouri were estimated at $147,905,541.

• Drought08/01/2012

  St. Clair

  $3.6M damage

  What happened

  The U.S Drought Monitor continued to report Extreme Drought (D3) to Exceptional Drought (D4) throughout the month of August. The region started seeing some rainfall by the end of the month. The COOP station near Appleton City reported 2.95 of rainfall for the month of August. The COOP station near Osceola reported 4.01 of rainfall for the month of August. This is a continuation of the drought that began across the region in June. Across the Missouri Ozarks and southwestern Missouri between 50 and 75 percent of the combined corn, soybeans and hay acreage was reported as a loss due to the drought. Monetary crop loss figures are estimates using information from the National Agricultural Statistics database, local FSA and USDA offices and other local, state or federal agency information. Livestock losses, if they occurred or were reported are listed in the property section.

• Drought11/01/2025

  St. Clair

  $2.8M damage

  What happened

  Though below the monthly average, timely rain fell across the region through the month. This allowed for drought improvements to Moderate (D1) drought by the end of the month. Impacts across the region were largely limited to larger scale agriculture. However, farm and stock ponds saw impacts with ground water levels also falling. Crop loss estimates notated are for fall harvest loses from the summer into the fall.

• Drought11/01/2024

  St. Clair

  $2M damage

  What happened

  A period of significant rains fell across the region early in the month with 3 to 5 inches of rainfall measured at some locations. This allowed for drought improvements to Moderate (D1) drought by the end of the month despite little or no rain fall through the last three weeks of the month. Impacts across the region occurred over larger scale agriculture which began during the summer when Moderate (D1) drought deteriorated to Extreme (D3) drought during the month of October. Farm and stock ponds saw impacts with ground water levels also falling. Crop and vegetation growth showed signs of stress due to limited moisture with some impacts to crop yield during the fall harvest. Crop loss estimates notated are for fall harvest loses from the summer into the fall.

• Harry S Truman Pwsd 2Serves 2,700 · Surface water · Local governmentNo health violations+9 monitoring or reporting
• Appleton City PwsServes 1,050 · Purchased surface water · Local government1 health violation+1 monitoring or reporting
• Osceola PwsServes 947 · Groundwater · Local governmentNo health violations+1 monitoring or reporting
• Lowry City PwsServes 640 · Groundwater · Local governmentNo health violations+3 monitoring or reporting
• Collins PwsServes 125 · Groundwater · Local governmentNo health violations+2 monitoring or reporting
• Twin Oaks HarborServes 50 · Groundwater · PrivateNo health violations