Commercial Agriculture Automated Weather Station Network
Daily Weather Report
Station:   Saint Louis, MO, Saint Louis Science Center
9/19/2026

Max. Temp.  =  97.3 deg. F
Min. Temp.  =  76.7 deg. F
Avg. Temp.  =  86.4 deg. F

Max. Wind  =  10.5 mi/hr
Time of Max Wind  =  745 CST
Avg. Wind  =   1.8 mi/hr

Max. RH  =  67.7 %
Time of Max. RH  =  200 CST
Min. RH  =  29.8 %
Time of Min. RH  =  1700 CST

Max. Bare Soil Temp. at 2 in.  =  94.7 deg. F
Time of Max. Bare Soil Temp.  =  1400 CST
Min. Bare Soil Temp. at 2 in.  =  76.5 deg. F
Time of Min. Bare Soil Temp.  =  700 CST

Avg. Vapor Press.  =    1.9 mb
Avg. Vapor Press. Def.  =    2.5 mb

Precip.  =  0.00 in

Radiation = 14.50 MJoules/sq. meter

Potential Evapotranspiration  =  0.16 inches

Growing Degree Days (45 F) = 41.4
Growing Degree Days (50 F) = 36.4
Growing Degree Days (55 F) = 31.4
Growing Degree Days (60 F) = 26.4

Heating Degree Days (65 F) =  0.0

Cooling Degree Days (65 F) = 21.4

Maximum Livestock Heat Stress Index  =    88

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

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