AZMET Hourly Weather Data : PAYSON : Sep 6 2008 HR AT TD RH VPD SR PPT ST4 ST20 WS WSX WVM WVD 1 59.5 46.2 61.6 0.7 0.0 0.00 73.6 75.2 0.4 1.3 0.4 32 2 58.3 46.2 64.3 0.6 0.0 0.00 72.5 75.2 0.4 0.7 0.4 37 3 56.7 45.3 65.5 0.5 0.0 0.00 71.6 75.2 0.4 0.4 0.4 34 4 56.5 45.5 67.1 0.5 0.0 0.00 70.7 75.2 0.4 0.4 0.4 45 5 55.4 45.1 68.5 0.5 0.0 0.00 70.0 75.2 0.4 0.4 0.4 43 6 54.9 45.0 69.2 0.4 0.0 0.00 69.3 75.2 0.4 2.0 0.4 47 7 56.3 44.6 64.7 0.6 4.8 0.00 68.5 75.0 0.4 2.0 0.4 49 8 67.8 44.2 43.1 1.4 22.0 0.00 68.5 75.0 0.4 1.6 0.4 70 9 77.5 44.4 30.9 2.2 40.1 0.00 69.4 74.8 0.7 2.5 0.4 149 10 85.1 39.0 19.7 3.3 56.1 0.00 71.1 74.8 0.4 1.6 0.2 141 11 85.5 39.2 19.5 3.4 68.3 0.00 74.3 74.7 3.4 8.7 2.7 254 12 85.8 38.1 18.5 3.4 75.7 0.00 77.5 74.5 4.5 10.1 3.6 228 13 87.6 34.9 15.4 3.8 78.4 0.00 80.8 74.3 4.5 13.4 3.4 178 14 88.0 35.4 15.6 3.8 75.7 0.00 83.7 74.3 5.8 14.1 4.7 209 15 88.7 34.5 14.5 4.0 50.2 0.00 85.6 74.3 3.8 11.6 2.5 210 16 87.8 36.0 15.9 3.8 39.9 0.00 85.5 74.3 4.7 11.6 3.6 270 17 89.2 35.6 15.0 4.0 37.5 0.00 85.3 74.3 4.9 12.1 3.8 231 18 88.5 34.5 14.7 3.9 18.2 0.00 84.9 74.5 2.7 7.6 2.2 250 19 85.5 35.8 17.1 3.5 2.9 0.00 83.7 74.7 2.9 6.0 2.7 197 20 75.2 39.2 27.5 2.2 0.0 0.00 82.0 74.8 0.4 1.1 0.4 351 21 69.3 43.2 39.0 1.5 0.0 0.00 80.2 75.0 0.4 1.3 0.4 352 22 65.8 45.1 47.2 1.1 0.0 0.00 78.6 75.2 0.4 1.8 0.2 23 23 63.5 45.9 52.6 0.9 0.0 0.00 77.2 75.4 0.4 3.4 0.4 343 24 61.9 46.0 56.0 0.8 0.0 0.00 75.6 75.4 0.4 0.4 0.4 29 AZMET Daily Weather Data : PAYSON : Sep 6 2008 MAX. MIN. MEAN TOTAL UNITS TEMPERATURE 91.4 53.8 72.9 DegF RELATIVE HUMIDITY 73.6 11.5 38.5 % DEWPOINT 41.2 DegF ACTUAL VAPOR PRESS. 0.9 KPas VAPOR PRESS. DEF. 2.1 KPas SOIL TEMP. 4 in 85.6 68.4 76.6 DegF SOIL TEMP. 20 in 75.4 74.3 74.8 DegF WIND SPEED 14.1 1.8 MPH WIND VECTOR MAG. 0.9 MPH WIND VECTOR DIR. 225 Degrees SOLAR RADIATION 569.8 Langleys PRECIPITATION 0.00 Inches AZMET REF. EVAPOTRANSPIRATION 0.23 Inches STD. REF. EVAPOTRANSPIRATION 0.18 Inches HEAT UNITS 86/55F 86/50F 86/45F ---------- DAY CUM DAY CUM DAY CUM SINE CURVE 16.9 2151 21.6 2874 26.6 3699 DEFINITIONS AND UNITS AT : Air Temp (DegF) ST4 : Soil Temp 4in (DegF) TD : Dewpoint (DegF) ST20 : Soil Temp 20in (DegF) RH : Rel Humidity (%) WS : Mean Wind Speed (MPH) VPD : Vapor Pressure Deficit(KPas) WSX : Max Wind Speed (MPH) SR : Solar Rad (Langleys) WVM : Wind Vector Magnitude (MPH) PPT : Precipitation (Inches) WVD : Wind Vector Direction (Degrees) DAY : Heat Units for Day ## or 999 : Missing Data CUM : Heat Units Accumulated Since Jan 1, 2008 *** NOTE : Soil Temps measured under grass ***