Prairie Fork Conservation Area / Missouri Department of Conservation Daily Weather Report Station: Callaway County, 2 miles southwest of Williamsburg 9/2/2025 Max. Temp. = 79.7 deg. F Min. Temp. = 57.6 deg. F Avg. Temp. = 67.0 deg. F Max. Wind = 8.8 mi/hr Time of Max Wind = 615 CST Avg. Wind = 1.1 mi/hr Max. RH = 89.2 % Time of Max. RH = 900 CST Min. RH = 47.9 % Time of Min. RH = 1700 CST Max. Fuel Moisture = 100.0 % Time of Max. Fuel Moisture = 2338 CST Min. Fuel Moisture = 13.6 % Time of Min. Fuel Moisture = 17 CST Max. Bare Soil Temp. at 2 in. = 79.6 deg. F Time of Max. Bare Soil Temp. = 1500 CST Min. Bare Soil Temp. at 2 in. = 66.6 deg. F Time of Min. Bare Soil Temp. at 2 in. = 0 CST Max. Bare Soil Temp. at 4 in. = 80.8 deg. F Time of Max. Bare Soil Temp. at 4 in. = 1500 CST Min. Bare Soil Temp. at 4 in. = 67.5 deg. F Time of Min. Bare Soil Temp. at 4 in. = 0 CST Avg. Vapor Press. = 1.6 mb Avg. Vapor Press. Def. = 0.7 mb Precip. = 0.06 in Radiation = 14.10 MJoules/sq. meter Potential Evapotranspiration = 0.13 inches Growing Degree Days (45 F) = 22.0 Growing Degree Days (50 F) = 17.0 Growing Degree Days (55 F) = 12.0 Growing Degree Days (60 F) = 7.0 Heating Degree Days (65 F) = 0.0 Cooling Degree Days (65 F) = 2.0 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