Prairie Fork Conservation Area / Missouri Department of Conservation
Daily Weather Report
Station:   Callaway County, 2 miles southwest of Williamsburg
4/17/2026

Max. Temp.  =  83.2 deg. F
Min. Temp.  =  53.0 deg. F
Avg. Temp.  =  69.6 deg. F

Max. Wind  =  35.7 mi/hr
Time of Max Wind  =  1948 CST
Avg. Wind  =   9.3 mi/hr

Max. RH  =  98.7 %
Time of Max. RH  =  0 CST
Min. RH  =  46.8 %
Time of Min. RH  =  1700 CST

Max. Fuel Moisture  =  100.0 %
Time of Max. Fuel Moisture  =  0 CST
Min. Fuel Moisture  =  15.8 %
Time of Min. Fuel Moisture  =  19 CST

Max. Bare Soil Temp. at 2 in.  =  74.8 deg. F
Time of Max. Bare Soil Temp.  =  1600 CST
Min. Bare Soil Temp. at 2 in.  =  62.8 deg. F
Time of Min. Bare Soil Temp. at 2 in. =  600 CST

Max. Bare Soil Temp. at 4 in.  =  73.1 deg. F
Time of Max. Bare Soil Temp. at 4 in. =  1600 CST
Min. Bare Soil Temp. at 4 in.  =  62.1 deg. F
Time of Min. Bare Soil Temp. at 4 in. =  700 CST

Avg. Vapor Press.  =    1.8 mb
Avg. Vapor Press. Def.  =    0.8 mb

Precip.  =  1.54 in

Radiation = 15.53 MJoules/sq. meter

Potential Evapotranspiration  =  0.15 inches

Growing Degree Days (45 F) = 24.6
Growing Degree Days (50 F) = 19.6
Growing Degree Days (55 F) = 14.6
Growing Degree Days (60 F) =  9.6

Heating Degree Days (65 F) =  0.0

Cooling Degree Days (65 F) =  4.6

Maximum Livestock Heat Stress Index  =    77

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

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