Commercial Agriculture Automated Weather Station Network Daily Weather Report Station: Linn County Forage Systems Research Center ( Linneus ) 5/31/2025 Max. Temp. = 81.9 deg. F Min. Temp. = 53.9 deg. F Avg. Temp. = 68.6 deg. F Max. Wind = 14.4 mi/hr Time of Max Wind = 1024 CST Avg. Wind = 2.1 mi/hr Max. RH = 86.6 % Time of Max. RH = 600 CST Min. RH = 43.0 % Time of Min. RH = 1600 CST Max. Bare Soil Temp. at 2 in. = 81.8 deg. F Time of Max. Bare Soil Temp. = 1500 CST Min. Bare Soil Temp. at 2 in. = 59.4 deg. F Time of Min. Bare Soil Temp. = 600 CST Avg. Vapor Press. = 1.5 mb Avg. Vapor Press. Def. = 1.0 mb Precip. = 0.00 in Radiation = 25.52 MJoules/sq. meter Potential Evapotranspiration = 0.19 inches Growing Degree Days (45 F) = 23.6 Growing Degree Days (50 F) = 18.6 Growing Degree Days (55 F) = 13.6 Growing Degree Days (60 F) = 8.6 Heating Degree Days (65 F) = 0.0 Cooling Degree Days (65 F) = 3.6 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