Hot, Humid Weather in Missouri





The information here tells how often heat combines with humidity in Missouri cities to create uncomfortably muggy weather.

The apparent temperature, also known as the Heat Index, measures how hot the weather really feels, considering both temperature and humidity. For instance, a temperature of 90 degrees Fahrenheit (32.2 ° Celsius) along with 60 % humidity pushes the apparent temperature to 100 °F (37.8 °C).

These tables list the number of days when the actual temperature and the apparent temperature rose to least 95, 105 or 115 °F (35, 40.6 or 46.1 °C) for an hour or more. The totals are for the 30 years from 1978 to 2007.

The final table breaks the totals into yearly averages for the days when apparent temperatures reach 95 and 105 °F.

Total days with the temperature at least 95 °F
City Actual Apparent
Columbia 281 910
Joplin 524 1280
Kansas City 365 1030
Springfield 337 898
St. Louis 384 1068
Total days with the temperature at least 105 °F
City Actual Apparent
Columbia 15 160
Joplin 10 196
Kansas City 8 211
Springfield 3 50
St. Louis 5 212
Total days with the temperature at least 115 °F
City Actual Apparent
Columbia 0 2
Joplin 0 2
Kansas City 0 7
Springfield 0 0
St. Louis 0 7
Average days a year of apparent temperature
City 95+ °F 105+ °F
Columbia 30 5
Joplin 43 7
Kansas City 34 7
Springfield 30 2
St. Louis 36 7
References

Peter Browning and Brian Walawender. 2009. A Climatology of Apparent Temperature. 21st Conference on Climate Variability and Change.

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