AZMET Hourly Weather Data : SAN SIMON : May 17 2013 HR AT TD RH VPD SR PPT ST4 ST20 WS WSX WVM WVD 1 73.9 21.4 13.8 2.5 0.0 0.00 81.7 74.1 9.2 16.6 8.5 289 2 70.2 23.5 17.1 2.1 0.0 0.00 80.4 74.1 3.8 8.9 3.4 18 3 63.7 23.7 21.5 1.6 0.0 0.00 79.5 74.1 4.0 8.1 3.8 52 4 58.8 25.5 27.8 1.2 0.0 0.00 78.3 74.3 2.2 6.5 1.3 80 5 55.6 25.5 31.1 1.0 0.0 0.00 77.2 74.3 1.3 4.7 0.7 84 6 55.6 26.1 31.9 1.0 0.7 0.00 76.1 74.3 3.6 6.7 3.4 128 7 60.8 24.6 25.0 1.4 11.7 0.00 75.0 74.3 4.5 8.1 4.3 136 8 69.8 27.7 20.7 2.0 34.9 0.00 74.3 74.5 5.6 8.9 5.4 169 9 77.9 26.1 14.7 2.8 48.7 0.00 74.5 74.5 2.2 5.8 1.6 130 10 80.6 26.4 13.6 3.1 68.1 0.00 75.6 74.5 4.5 8.3 2.2 324 11 82.9 27.1 13.0 3.3 77.6 0.00 77.4 74.5 3.8 9.6 2.0 30 12 84.6 27.9 12.7 3.5 83.4 0.00 79.7 74.5 4.9 12.3 3.8 357 13 87.1 28.6 12.1 3.9 84.8 0.00 82.4 74.5 3.8 9.4 1.8 300 14 88.9 27.5 11.0 4.1 81.2 0.00 85.1 74.3 5.4 13.4 3.4 265 15 90.5 25.9 9.7 4.4 73.1 0.00 87.6 74.3 6.7 15.0 1.6 338 16 91.8 20.5 7.4 4.7 59.7 0.00 89.4 74.3 11.6 21.5 9.4 238 17 91.0 14.2 5.8 4.7 44.0 0.00 90.7 74.3 13.6 22.1 12.8 249 18 89.2 12.7 5.8 4.4 25.8 0.00 91.0 74.3 12.5 21.5 12.1 260 19 85.8 15.3 7.2 3.9 5.5 0.00 90.7 74.3 8.7 15.2 8.5 255 20 81.0 18.5 9.7 3.3 0.0 0.00 89.8 74.3 8.9 13.6 8.9 276 21 78.1 19.9 11.3 2.9 0.0 0.00 88.5 74.3 6.7 10.1 6.5 262 22 77.7 21.2 12.0 2.8 0.0 0.00 87.1 74.5 8.1 13.2 7.8 263 23 73.2 21.6 14.2 2.4 0.0 0.00 85.6 74.5 5.1 11.0 4.9 284 24 73.8 20.3 13.2 2.5 0.0 0.00 84.4 74.5 8.7 12.3 8.3 298 AZMET Daily Weather Data : SAN SIMON : May 17 2013 MAX. MIN. MEAN TOTAL UNITS TEMPERATURE 93.7 53.4 76.8 DegF RELATIVE HUMIDITY 37.6 5.1 15.1 % DEWPOINT 23.0 DegF ACTUAL VAPOR PRESS. 0.4 KPas VAPOR PRESS. DEF. 2.9 KPas SOIL TEMP. 4 in 91.0 74.3 82.6 DegF SOIL TEMP. 20 in 74.5 73.9 74.3 DegF WIND SPEED 22.1 6.3 MPH WIND VECTOR MAG. 3.1 MPH WIND VECTOR DIR. 268 Degrees SOLAR RADIATION 699.3 Langleys PRECIPITATION 0.00 Inches AZMET REF. EVAPOTRANSPIRATION 0.35 Inches STD. REF. EVAPOTRANSPIRATION 0.33 Inches HEAT UNITS 86/55F 86/50F 86/45F ---------- DAY CUM DAY CUM DAY CUM SINE CURVE 17.3 867 22.1 1208 27.2 1621 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, 2013