AZMET Hourly Weather Data : TUCSON : May 18 2024 HR AT TD RH VPD SR PPT ST4 ST20 WS WSX WVM WVD 1 77.2 32.0 19.0 2.6 0.0 0.00 85.1 81.3 2.7 6.0 0.9 345 2 74.8 33.2 22.0 2.3 0.0 0.00 83.8 81.5 2.2 9.6 1.3 130 3 68.9 34.3 28.0 1.7 0.0 0.00 82.8 81.5 1.3 3.6 1.3 80 4 65.3 35.0 32.0 1.5 0.0 0.00 81.5 81.7 1.6 4.7 1.6 77 5 64.0 34.7 34.0 1.4 0.0 0.00 80.4 81.7 2.5 4.5 2.2 93 6 64.8 35.7 34.0 1.4 1.9 0.00 79.3 81.7 1.6 3.6 0.9 110 7 70.5 37.1 30.0 1.8 14.6 0.00 78.3 81.7 1.1 4.9 0.9 42 8 76.3 37.1 24.0 2.4 32.7 0.00 77.9 81.7 2.5 6.3 2.2 109 9 82.2 37.5 20.0 3.0 49.5 0.00 78.6 81.7 4.0 7.6 3.6 141 10 86.9 35.7 16.0 3.7 64.8 0.00 80.4 81.7 3.1 7.4 2.7 142 11 90.9 33.5 13.0 4.3 76.7 0.00 82.9 81.5 3.1 8.1 2.5 124 12 93.4 32.4 12.0 4.7 83.9 0.00 86.0 81.5 3.4 10.1 0.9 155 13 93.6 33.5 12.0 4.7 85.3 0.00 89.1 81.3 6.0 15.2 3.8 242 14 95.2 32.4 11.0 5.0 82.2 0.00 91.6 81.3 5.1 16.3 1.6 235 15 97.0 31.1 10.0 5.4 73.6 0.00 93.9 81.3 6.0 14.5 2.7 265 16 97.3 28.5 9.0 5.5 61.4 0.00 95.5 81.1 8.5 17.9 7.6 240 17 96.6 25.6 8.0 5.4 45.2 0.00 96.4 81.1 8.9 19.2 8.1 251 18 95.7 25.1 8.0 5.3 27.0 0.00 96.4 81.1 8.7 18.6 8.1 269 19 93.4 25.6 9.0 4.9 10.0 0.00 95.7 81.3 8.7 18.1 8.3 262 20 89.4 28.5 11.0 4.2 0.5 0.00 94.3 81.3 10.1 17.0 9.8 279 21 86.7 30.7 13.0 3.8 0.0 0.00 92.8 81.5 7.6 16.3 7.4 281 22 84.2 31.6 15.0 3.4 0.0 0.00 91.2 81.5 4.0 9.4 3.8 309 23 80.8 32.0 17.0 3.0 0.0 0.00 89.6 81.7 2.2 10.3 1.8 336 24 76.1 33.5 21.0 2.4 0.0 0.00 88.0 81.9 0.2 2.5 0.2 149 AZMET Daily Weather Data : TUCSON : May 18 2024 MAX. MIN. MEAN TOTAL UNITS TEMPERATURE 99.7 63.0 83.5 DegF RELATIVE HUMIDITY 37.0 6.0 18.0 % DEWPOINT 32.8 DegF ACTUAL VAPOR PRESS. 0.6 KPas VAPOR PRESS. DEF. 3.5 KPas SOIL TEMP. 4 in 96.6 77.9 87.1 DegF SOIL TEMP. 20 in 81.9 81.1 81.5 DegF WIND SPEED 19.2 4.5 MPH WIND VECTOR MAG. 1.8 MPH WIND VECTOR DIR. 256 Degrees SOLAR RADIATION 709.1 Langleys PRECIPITATION 0.00 Inches AZMET REF. EVAPOTRANSPIRATION 0.35 Inches STD. REF. EVAPOTRANSPIRATION 0.31 Inches HEAT UNITS 86/55F 86/50F 86/45F ---------- DAY CUM DAY CUM DAY CUM SINE CURVE 22.7 1185 27.7 1652 32.7 2201 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, 2024