AZMET Hourly Weather Data : TUCSON : May 19 2013 HR AT TD RH VPD SR PPT ST4 ST20 WS WSX WVM WVD 1 72.9 45.0 36.8 1.7 0.0 0.00 66.0 69.3 4.0 7.2 3.8 317 2 69.4 44.2 40.3 1.5 0.0 0.00 65.3 69.4 1.3 8.1 0.7 334 3 64.4 43.7 47.0 1.1 0.0 0.00 64.4 69.3 0.7 2.7 0.7 100 4 63.0 42.4 47.2 1.0 0.0 0.00 63.7 69.3 1.3 3.4 1.3 86 5 61.0 41.4 48.3 0.9 0.0 0.00 62.8 69.3 1.1 2.7 1.1 91 6 59.2 41.2 51.3 0.8 1.7 0.00 61.9 69.3 0.7 2.0 0.7 67 7 65.3 42.6 43.8 1.2 13.9 0.00 61.9 69.3 0.9 2.0 0.9 62 8 71.6 42.1 34.3 1.7 33.5 0.00 63.7 69.1 3.1 8.3 2.9 101 9 75.0 39.2 27.6 2.2 51.1 0.00 66.2 69.1 3.1 6.9 2.7 105 10 78.3 40.5 26.0 2.4 66.7 0.00 69.6 68.9 2.7 7.6 0.9 241 11 80.4 37.8 21.8 2.8 77.9 0.00 73.2 68.9 3.8 10.1 2.2 280 12 82.2 34.2 17.8 3.1 85.5 0.00 75.9 68.7 5.6 11.2 4.0 298 13 84.4 31.5 14.8 3.4 87.2 0.00 78.1 68.7 6.0 14.1 4.0 307 14 86.2 30.7 13.6 3.7 83.8 0.00 80.1 68.7 8.1 17.0 6.7 306 15 87.8 30.2 12.6 3.9 75.3 0.00 81.9 68.7 8.1 16.3 6.3 313 16 88.7 31.5 12.9 4.0 61.9 0.00 82.9 68.7 8.7 17.0 7.4 311 17 89.1 29.5 11.8 4.1 45.9 0.00 82.9 68.7 10.3 19.7 9.6 302 18 88.7 28.0 11.2 4.1 28.0 0.00 82.0 68.7 9.2 15.2 8.7 299 19 87.4 27.9 11.6 3.9 10.3 0.00 80.1 68.9 8.5 17.2 8.1 294 20 84.7 30.9 14.4 3.5 0.2 0.00 77.5 69.1 6.0 13.0 5.6 296 21 81.5 34.2 18.2 3.0 0.0 0.00 75.2 69.1 4.7 7.6 4.7 282 22 78.6 34.0 19.9 2.7 0.0 0.00 73.4 69.3 3.1 6.9 3.1 292 23 75.0 37.2 25.6 2.2 0.0 0.00 71.6 69.4 1.8 5.6 1.6 228 24 70.0 36.3 29.0 1.8 0.0 0.00 70.0 69.8 0.7 3.6 0.4 320 AZMET Daily Weather Data : TUCSON : May 19 2013 MAX. MIN. MEAN TOTAL UNITS TEMPERATURE 90.0 58.5 76.8 DegF RELATIVE HUMIDITY 57.0 9.6 26.6 % DEWPOINT 36.5 DegF ACTUAL VAPOR PRESS. 0.8 KPas VAPOR PRESS. DEF. 2.5 KPas SOIL TEMP. 4 in 83.1 61.7 72.0 DegF SOIL TEMP. 20 in 69.8 68.5 69.1 DegF WIND SPEED 19.7 4.3 MPH WIND VECTOR MAG. 2.7 MPH WIND VECTOR DIR. 303 Degrees SOLAR RADIATION 722.7 Langleys PRECIPITATION 0.00 Inches AZMET REF. EVAPOTRANSPIRATION 0.33 Inches STD. REF. EVAPOTRANSPIRATION 0.28 Inches HEAT UNITS 86/55F 86/50F 86/45F ---------- DAY CUM DAY CUM DAY CUM SINE CURVE 18.5 1219 23.6 1655 28.6 2168 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