Appendix A. Reference Evapotranspiration (ETo) Table | |||||||||||||
County and City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual ETo |
BUTTE | |||||||||||||
Gridley | 1.2 | 1.8 | 3.0 | 4.7 | 6.1 | 7.7 | 8.5 | 7.1 | 5.4 | 3.7 | 1.7 | 1.0 | 51.9 |
* The values in this table were derived from:
1) California Irrigation Management Information System (CIMIS);
2) Reference EvapoTranspiration Zones Map, UC Dept. of Land, Air & Water Resources and California Dept. of Water Resources 1999; and
3) Reference Evapotranspiration for California, University of California, Department of Agriculture and Natural Resources (1987) Bulletin 1922;
4) Determining Daily Reference Evapotranspiration, Cooperative Extension UC Division of Agriculture and Natural Resources (1987), Publication Leaflet 21426.
(Ord. 814-2015, 2016)