SMWD has two weather stations connected to the California Irrigation Management Information System (CIMIS) which provides 24/7 monitoring of local weather. The District's budget-based tiered rate structure uses daily evapotranspiration (ETo) data based on accounts' billing cycles to calculate outdoor water budgets.
ETo values for all SMWD customers except those in San Clemente
Station #241 in San Clemente
ETo values for Talega customers
What is Evapotranspiration or ET?
Evaporation is the process of water vapor leaving the soil or plant's surface. Transpiration is the process of water leaving from within the plant leaves. Thus, evapotranspiration (ET) is the total loss of water to the atmosphere from the plant's soil, surface and tissue.