Commercial Agriculture Automated Weather Station Network
Daily Weather Report
Station:   Saint Louis, MO, Saint Louis Science Center
8/12/2025

Max. Temp.  =  91.4 deg. F
Min. Temp.  =  71.5 deg. F
Avg. Temp.  =  78.6 deg. F

Max. Wind  =  17.8 mi/hr
Time of Max Wind  =  1234 CST
Avg. Wind  =   0.9 mi/hr

Max. RH  =  99.8 %
Time of Max. RH  =  1600 CST
Min. RH  =  48.2 %
Time of Min. RH  =  1200 CST

Max. Bare Soil Temp. at 2 in.  =  95.0 deg. F
Time of Max. Bare Soil Temp.  =  1200 CST
Min. Bare Soil Temp. at 2 in.  =  75.6 deg. F
Time of Min. Bare Soil Temp.  =  600 CST

Avg. Vapor Press.  =    2.5 mb
Avg. Vapor Press. Def.  =    0.9 mb

Precip.  =  1.17 in

Radiation = 11.96 MJoules/sq. meter

Potential Evapotranspiration  =  0.13 inches

Growing Degree Days (45 F) = 33.6
Growing Degree Days (50 F) = 28.6
Growing Degree Days (55 F) = 23.6
Growing Degree Days (60 F) = 18.6

Heating Degree Days (65 F) =  0.0

Cooling Degree Days (65 F) = 13.6

Maximum Livestock Heat Stress Index  =    83

Definition of Categories...
HTI < 75 ... No Stress
HTI = 75 to 78  ...  Alert
HTI = 79 to 83  ...  Dangerous
HTI = > 83  ...  Emergency

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