Evapotranspiration Calculations

St Helens Aerodrome - August 2026 daily calculations

Date	Evapotrans- piration (mm) 0000- 2400	Rain (mm) 0900- 0900	Pan Evaporation (mm) 0900- 0900	Max Temp	Min Temp	Max Rel Hum (%)	Min Rel Hum (%)	Average 10m Wind Speed (m/sec)	Solar Radiation (MJ/sq m)
31/07/2026	1.6	0.0		15.3	2.3	96	48	3.26	9.88
01/08/2026	1.3	0.2		15.2	3.0	96	53	2.62	9.66
02/08/2026	1.3	0.2		15.7	4.2	98	50	2.14	9.80
03/08/2026	1.2	0.0		14.1	4.2	98	61	2.70	7.41
04/08/2026	1.0	0.4		13.4	3.3	97	58	1.86	8.94
05/08/2026	1.2	1.0		15.1	4.4	97	64	2.76	9.68
06/08/2026	1.6	0.0		16.3	4.3	94	43	2.65	9.43
Totals:	9.2	1.8

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