Commercial Agriculture Automated Weather Station Network Daily Weather Report Station: Saint Louis, MO, Saint Louis Science Center 6/9/2025 Max. Temp. = 83.3 deg. F Min. Temp. = 61.7 deg. F Avg. Temp. = 71.8 deg. F Max. Wind = 15.0 mi/hr Time of Max Wind = 1332 CST Avg. Wind = 1.4 mi/hr Max. RH = 84.4 % Time of Max. RH = 500 CST Min. RH = 27.8 % Time of Min. RH = 1300 CST Max. Bare Soil Temp. at 2 in. = 93.3 deg. F Time of Max. Bare Soil Temp. = 1400 CST Min. Bare Soil Temp. at 2 in. = 67.4 deg. F Time of Min. Bare Soil Temp. = 600 CST Avg. Vapor Press. = 1.3 mb Avg. Vapor Press. Def. = 1.4 mb Precip. = 0.00 in Radiation = 22.38 MJoules/sq. meter Potential Evapotranspiration = 0.23 inches Growing Degree Days (45 F) = 26.8 Growing Degree Days (50 F) = 21.8 Growing Degree Days (55 F) = 16.8 Growing Degree Days (60 F) = 11.8 Heating Degree Days (65 F) = 0.0 Cooling Degree Days (65 F) = 6.8 Maximum Livestock Heat Stress Index = 78 Definition of Categories... HTI < 75 ... No Stress HTI = 75 to 78 ... Alert HTI = 79 to 83 ... Dangerous HTI = > 83 ... Emergency