TODAY AUG18
TEMPERATURE85
HUMIDITY63
PRESSURE30.03
WIND COND.360 10.3
  • 8866Sat
  • 8667Sun60%
  • 8063Mon50%50%
  • 8057Tue
  • 8160Wed
daynightWeather update from St. Joseph, Rosecrans Memorial Airport at

Union Star 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
January18°F40°F27°F0.6"
February20°F43°F31°F1.1"
March34°F58°F44°F2.3"
April44°F68°F55°F4.1"
May54°F77°F65°F5.1"
June65°F87°F75°F5.2"
July68°F89°F78°F3.6"
August65°F87°F75°F4.1"
September56°F81°F68°F3.7"
October44°F69°F55°F3.6"
November32°F56°F43°F1.7"
December21°F41°F30°F1.6"

Did you know?

  • The highest monthly average temperature in Union Star for July is 78 degrees.
  • The lowest monthly average temperature in Union Star for January is 27 degrees.
  • The most monthly precipitation in Union Star occurs in June with 5.2 inches.
  • The air quality index in Union Star is 9% better than the national average.
  • The pollution index in Union Star is 92% better than the national average.

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Compare Union Star, MO Weather To Other Cities

Union Star 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.
IndexUnion StarMissouriNational
Air quality index459750
Pollution index393,0712,360,5665,066,862

Union Star air quality information

MeasurementTotal
Days measured360
Days with good air quality211
Days with moderate air quality149
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Union Star air quality information

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

Average monthly Union Star temperature with heat index

Union Star monthly precipitation with daily maximum

Union Star monthly snow depth with daily maximum

Union Star monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Amity, MO224510%
Cosby, MO2014510%
Maysville, MO1,0944510%
Barnard, MO2704510%
Country Club, MO2,8474510%
Union Star, MO3584510%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Lee, IL358198%
Laurel, IA3583726%
Evaro, MT3585510%
Bison, SD3583432%
Shoal Creek Drive, MO358325550%
Union Star, MO3584510%
Source: The Union Star, 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.