Commercial Agriculture Automated Weather Station Network Daily Weather Report Station: Saint Louis, MO, Saint Louis Science Center 7/19/2024 Max. Temp. = 79.3 deg. F Min. Temp. = 63.7 deg. F Avg. Temp. = 71.7 deg. F Max. Wind = 13.9 mi/hr Time of Max Wind = 1225 CST Avg. Wind = 1.6 mi/hr Max. RH = 75.4 % Time of Max. RH = 600 CST Min. RH = 36.8 % Time of Min. RH = 1600 CST Max. Bare Soil Temp. at 2 in. = 95.9 deg. F Time of Max. Bare Soil Temp. = 1400 CST Min. Bare Soil Temp. at 2 in. = 66.7 deg. F Time of Min. Bare Soil Temp. = 600 CST Avg. Vapor Press. = 1.4 mb Avg. Vapor Press. Def. = 1.3 mb Precip. = 0.00 in Radiation = 21.50 MJoules/sq. meter Potential Evapotranspiration = 0.22 inches Growing Degree Days (45 F) = 26.7 Growing Degree Days (50 F) = 21.7 Growing Degree Days (55 F) = 16.7 Growing Degree Days (60 F) = 11.7 Heating Degree Days (65 F) = 0.0 Cooling Degree Days (65 F) = 6.7 Maximum Livestock Heat Stress Index = 74 Definition of Categories... HTI < 75 ... No Stress HTI = 75 to 78 ... Alert HTI = 79 to 83 ... Dangerous HTI = > 83 ... Emergency