AZMET Hourly Weather Data : SAN SIMON : Dec 9 2025 HR AT TD RH VPD SR PPT ST4 ST20 WS WSX WVM WVD 1 33.3 25.6 74.0 0.2 0.0 0.00 49.5 55.9 0.0 2.5 0.0 104 2 30.4 25.6 82.0 0.1 0.0 0.00 48.6 56.1 0.0 2.9 0.0 94 3 28.6 24.6 85.0 0.1 0.0 0.00 47.7 56.1 0.0 1.1 0.0 102 4 26.1 22.9 88.0 0.1 0.0 0.00 46.9 56.1 0.0 0.0 0.0 0 5 26.8 22.9 86.0 0.1 0.0 0.00 46.0 56.1 0.2 3.4 0.2 90 6 27.0 22.9 85.0 0.1 0.0 0.00 45.3 56.1 0.0 1.8 0.0 24 7 27.3 22.9 82.0 0.1 0.0 0.00 44.6 56.1 0.9 3.8 0.4 97 8 29.3 22.9 76.0 0.1 1.9 0.00 43.9 56.1 0.2 3.6 0.2 144 9 38.7 24.6 58.0 0.4 18.4 0.00 43.3 56.1 0.4 2.7 0.2 163 10 51.3 23.5 33.0 0.9 32.5 0.00 43.3 56.1 1.3 5.4 1.1 134 11 57.6 22.4 25.0 1.2 43.3 0.00 44.4 55.9 1.6 6.7 0.9 26 12 61.0 21.8 22.0 1.4 49.2 0.00 46.6 55.9 2.9 8.1 2.5 1 13 63.7 21.2 20.0 1.6 50.0 0.00 49.1 55.9 3.1 8.3 2.0 356 14 65.8 19.9 17.0 1.8 45.7 0.00 51.6 55.9 3.1 7.6 2.0 310 15 67.3 17.3 14.0 2.0 36.1 0.00 53.8 55.8 3.1 6.9 2.0 301 16 67.6 17.3 14.0 2.0 22.9 0.00 55.2 55.8 4.0 8.7 3.1 315 17 65.5 17.3 15.0 1.8 8.8 0.00 55.9 55.8 2.0 6.5 1.8 313 18 53.2 19.3 26.0 1.0 0.2 0.00 55.9 55.6 0.0 0.0 0.0 0 19 44.1 22.4 42.0 0.6 0.0 0.00 55.4 55.6 0.0 0.0 0.0 0 20 39.6 22.9 51.0 0.4 0.0 0.00 54.3 55.6 0.0 0.0 0.0 0 21 36.3 25.1 63.0 0.3 0.0 0.00 53.4 55.6 0.0 2.2 0.0 107 22 36.7 24.0 60.0 0.3 0.0 0.00 52.3 55.6 0.0 2.2 0.0 110 23 37.0 24.6 61.0 0.3 0.0 0.00 51.3 55.6 0.2 3.1 0.2 101 24 36.7 25.1 63.0 0.3 0.0 0.00 50.4 55.8 0.4 4.9 0.4 107 AZMET Daily Weather Data : SAN SIMON : Dec 9 2025 MAX. MIN. MEAN TOTAL UNITS TEMPERATURE 69.1 25.2 43.9 DegF RELATIVE HUMIDITY 90.0 13.0 52.0 % DEWPOINT 22.4 DegF ACTUAL VAPOR PRESS. 0.4 KPas VAPOR PRESS. DEF. 0.7 KPas SOIL TEMP. 4 in 56.1 43.2 49.5 DegF SOIL TEMP. 20 in 56.1 55.6 55.9 DegF WIND SPEED 8.7 0.9 MPH WIND VECTOR MAG. 0.4 MPH WIND VECTOR DIR. 338 Degrees SOLAR RADIATION 309.0 Langleys PRECIPITATION 0.00 Inches AZMET REF. EVAPOTRANSPIRATION 0.09 Inches STD. REF. EVAPOTRANSPIRATION 0.05 Inches HEAT UNITS 86/55F 86/50F 86/45F ---------- DAY CUM DAY CUM DAY CUM SINE CURVE 3.5 4418 5.5 5681 8.1 7053 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, 2025