AZMET Hourly Weather Data : PRESCOTT : May 11 2008 HR AT TD RH VPD SR PPT ST4 ST20 WS WSX WVM WVD 1 55.6 24.3 29.4 1.1 0.0 0.00 65.3 58.3 1.8 4.0 1.8 189 2 54.3 22.5 28.8 1.0 0.0 0.00 64.4 58.3 3.4 5.1 2.9 208 3 50.7 24.3 35.3 0.8 0.0 0.00 63.3 58.3 5.4 8.3 5.4 202 4 48.4 23.4 37.0 0.7 0.0 0.00 62.2 58.3 5.6 8.3 5.6 205 5 46.9 24.6 41.2 0.6 0.0 0.00 61.3 58.5 4.9 8.9 4.7 193 6 46.2 26.1 45.0 0.6 1.2 0.00 60.4 58.5 6.9 11.2 6.7 194 7 48.6 27.7 44.2 0.6 12.9 0.00 59.7 58.6 6.3 8.9 6.0 197 8 58.6 29.3 32.6 1.1 29.6 0.00 59.4 58.6 4.0 7.2 4.0 192 9 69.4 23.7 17.7 2.0 45.6 0.00 59.5 58.6 4.5 14.3 4.0 215 10 70.7 21.4 15.3 2.2 59.7 0.00 60.4 58.6 8.9 15.4 8.3 224 11 72.0 21.9 15.1 2.3 70.7 0.00 61.7 58.8 9.4 19.2 8.7 227 12 72.5 22.5 15.1 2.3 77.4 0.00 63.5 58.8 10.3 17.4 9.6 229 13 73.4 22.5 14.7 2.4 79.1 0.00 65.5 58.8 9.8 17.4 9.2 234 14 74.1 22.1 14.1 2.5 76.4 0.00 67.5 58.8 9.6 19.2 8.7 214 15 74.8 22.1 13.8 2.5 69.0 0.00 69.1 58.8 9.6 17.2 8.5 204 16 74.8 21.2 13.3 2.5 57.3 0.00 70.5 58.8 9.8 20.4 8.9 216 17 74.5 20.3 12.9 2.5 42.8 0.00 71.4 58.8 9.6 17.0 8.7 215 18 73.0 19.0 12.9 2.4 26.3 0.00 71.6 58.8 10.5 19.5 9.8 226 19 70.7 17.2 12.9 2.2 9.6 0.00 71.2 58.8 10.1 16.3 9.8 238 20 66.9 16.0 13.9 1.9 0.5 0.00 70.5 58.8 4.7 13.2 4.5 232 21 61.2 18.7 19.0 1.5 0.0 0.00 69.4 58.8 0.7 5.1 0.4 180 22 60.8 17.1 18.0 1.5 0.0 0.00 68.2 58.8 1.1 4.3 0.9 199 23 57.2 19.6 23.1 1.2 0.0 0.00 66.9 58.8 1.1 4.9 0.9 206 24 54.3 21.4 27.2 1.0 0.0 0.00 65.8 59.0 1.3 4.7 1.3 212 AZMET Daily Weather Data : PRESCOTT : May 11 2008 MAX. MIN. MEAN TOTAL UNITS TEMPERATURE 75.6 45.1 63.0 DegF RELATIVE HUMIDITY 54.7 10.9 23.0 % DEWPOINT 22.1 DegF ACTUAL VAPOR PRESS. 0.4 KPas VAPOR PRESS. DEF. 1.7 KPas SOIL TEMP. 4 in 71.6 59.2 65.3 DegF SOIL TEMP. 20 in 59.0 58.1 58.6 DegF WIND SPEED 20.4 6.3 MPH WIND VECTOR MAG. 5.6 MPH WIND VECTOR DIR. 216 Degrees SOLAR RADIATION 658.2 Langleys PRECIPITATION 0.00 Inches AZMET REF. EVAPOTRANSPIRATION 0.29 Inches STD. REF. EVAPOTRANSPIRATION 0.25 Inches HEAT UNITS 86/55F 86/50F 86/45F ---------- DAY CUM DAY CUM DAY CUM SINE CURVE 7.9 264 11.2 460 15.3 735 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 ***