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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026090312_klamath_hefs_csv_daily.zip03-Sep-2026 07:30 AM PDT1206K
North Coast2026090312_NorthCoast_hefs_csv_daily.zip03-Sep-2026 07:28 AM PDT1139K
Russian/Napa2026090312_RussianNapa_hefs_csv_daily.zip03-Sep-2026 07:28 AM PDT1522K
Upper Sacramento2026090312_UpperSacramento_hefs_csv_daily.zip03-Sep-2026 07:48 AM PDT1422K
Feather/Yuba2026090312_FeatherYuba_hefs_csv_daily.zip03-Sep-2026 07:15 AM PDT2204K
Cache/Putah2026090312_cacheputah_hefs_csv_daily.zip03-Sep-2026 07:16 AM PDT210K
American2026090312_american_hefs_csv_daily.zip03-Sep-2026 07:16 AM PDT1796K
Salinas/Pajaro2026090312_SalinasPajaro_hefs_csv_daily.zip03-Sep-2026 07:34 AM PDT558K
South Bay2026090312_SouthBay_hefs_csv_daily.zip03-Sep-2026 07:30 AM PDT441K
Southern California2026090312_SouthernCalifornia_hefs_csv_daily.zip03-Sep-2026 07:35 AM PDT981K
San Diego/Inland2026090312_SanDiego_Inland_hefs_csv_daily.zip03-Sep-2026 07:42 AM PDT674K
Tulare2026090312_Tulare_hefs_csv_daily.zip03-Sep-2026 07:22 AM PDT837K
San Joaquin2026090312_SanJoaquin_hefs_csv_daily.zip03-Sep-2026 07:22 AM PDT1293K
North San Joaquin2026090312_n_sanjoaquin_hefs_csv_daily.zip03-Sep-2026 07:21 AM PDT517K
East Sierra2026090312_EastSierra_hefs_csv_daily.zip03-Sep-2026 07:43 AM PDT2039K
Humboldt2026090312_Humboldt_hefs_csv_daily.zip03-Sep-2026 07:41 AM PDT747K
Water Supply Indices2026090312_WSI_hefs_csv_daily.zip03-Sep-2026 07:50 AM PDT217K

Note 1: Data represented in the files are in kcfs (thousands of cubic feet per second).

Note 2: Each location includes 44 ensemble members with the first column starting with year 1980 and the last column ending with year 2023. Each historical year is more meaningful beyond the first couple weeks when climatology drives the spread in the ensemble.

Note 3: On October 20, 2022 the Central Coast forecast group was split into two forecast groups (Salinas/Pajaro and South Bay) and the Southern California forecast group was split into two forecast groups (Southern California and San Diego/Inland).

Individual Points

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Forecast Groups Archive

Forecast Group

Start Date

End Date