Ozark National Scenic Riverways Network
Daily Weather Report
Station:   Shannon County, Round Spring, Missouri
4/20/2026

Max. Temp.  =  76.9 deg. F
Min. Temp.  =  37.1 deg. F
Avg. Temp.  =  56.3 deg. F

Max. Wind  =   8.1 mi/hr
Time of Max Wind  =  1637 CST
Avg. Wind  =   0.9 mi/hr

Max. RH  =  92.4 %
Time of Max. RH  =  700 CST
Min. RH  =  20.0 %
Time of Min. RH  =  1500 CST

Avg. Vapor Press.  =    0.8 mb
Avg. Vapor Press. Def.  =    0.9 mb

Precip.  =  0.00 in

Radiation = 8.43 MJoules/sq. meter

Potential Evapotranspiration  =  0.06 inches

Growing Degree Days (45 F) = 11.3
Growing Degree Days (50 F) =  6.3
Growing Degree Days (55 F) =  1.3
Growing Degree Days (60 F) =  0.0

Heating Degree Days (65 F) =  8.7

Cooling Degree Days (65 F) =  0.0

Minimum Wind Chill Index (F)  =  59.0

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

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