Evapotranspiration Calculations

St Helens Aerodrome - December 2025 daily calculations

DateEvapotrans-
piration (mm) 0000- 2400
Rain (mm) 0900- 0900Pan Evaporation (mm) 0900- 0900Max TempMin TempMax Rel Hum (%)Min Rel Hum (%)Average 10m Wind Speed (m/sec)Solar Radiation (MJ/sq m)
01/12/20253.78.8 17.26.797552.3225.07
02/12/20253.90.2 18.86.694482.8424.25
03/12/20255.50.0 22.611.677475.5726.98
04/12/20258.00.0 27.314.280195.8331.30
05/12/20256.00.0 21.811.383233.7331.30
06/12/20255.70.0 21.111.874304.9326.01
07/12/20255.10.0 20.37.175344.0826.52
08/12/20253.20.0 18.212.386615.9413.56
09/12/20256.60.2 23.912.187194.1731.68
10/12/20254.90.0 20.19.584473.2729.64
11/12/20254.80.0 17.89.380462.8231.16
12/12/20254.60.0 20.88.693564.5828.61
13/12/20255.90.0 26.116.195353.0528.96
14/12/20256.60.0 19.914.371216.1930.53
15/12/20255.50.0 21.16.771242.8930.35
16/12/20256.00.0 25.58.674403.2431.35
17/12/20256.90.0 29.511.293223.2730.22
18/12/20253.50.0 24.212.684412.3512.48
Totals:96.49.2       

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