TODAY AUG19
TEMPERATURE66
HUMIDITY96
PRESSURE29.94
WIND COND.100 3.4
  • 8265Mon70%50%
  • 8161Tue
  • 8160Wed
  • 8365Thu
  • 8568Fri50%20%
daynightWeather update from Jefferson City, Jefferson City Memorial Airport at

St. Thomas Average Weather

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January26°F43°F33°F9.7"
February27°F46°F35°F3.9"
March38°F62°F49°F4.6"
April45°F68°F56°F6.4"
May57°F79°F68°F3.6"
June66°F87°F76°F8.9"
July67°F90°F79°F2.3"
August70°F91°F80°F13.2"
September61°F83°F71°F7.3"
October49°F71°F59°F4.0"
November37°F59°F47°F4.3"
December26°F43°F34°F4.1"

Did you know?

  • The highest monthly average temperature in St. Thomas for August is 80 degrees.
  • The lowest monthly average temperature in St. Thomas for January is 33 degrees.
  • The most monthly precipitation in St. Thomas occurs in August with 13.2 inches.
  • The air quality index in St. Thomas is 25% better than the national average.
  • The pollution index in St. Thomas is 84% better than the national average.

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Compare St. Thomas, MO Weather To Other Cities

St. Thomas air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexSt. ThomasMissouriNational
Air quality index379750
Pollution index803,1862,360,5665,066,862

St. Thomas air quality information

MeasurementTotal
Days measured214
Days with good air quality209
Days with moderate air quality5
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

St. Thomas air quality information

PollutantTotal
Arsenic0.001%
Benzene0.010%
Carbon Tetrachloride0.002%
Lead0.010%
Mercury0.000%

Average monthly St. Thomas temperature with heat index

St. Thomas monthly precipitation with daily maximum

St. Thomas monthly snow depth with daily maximum

St. Thomas monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Argyle, MO2283726%
Russellville, MO7093726%
Vienna, MO7113726%
Jefferson City, MO43,1433726%
St. Elizabeth, MO3063726%
St. Thomas, MO2283726%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Laurens, NY2283432%
Bellechester, MN2283628%
Creola, LA228435770%
Taylor Landing, TX2284412%
Hillsboro, IA2284020%
St. Thomas, MO2283726%
Source: The St. Thomas, MO weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.