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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026050712_klamath_hefs_csv_daily.zip07-May-2026 08:44 AM PDT1131K
North Coast2026050712_NorthCoast_hefs_csv_daily.zip07-May-2026 08:44 AM PDT1087K
Russian/Napa2026050712_RussianNapa_hefs_csv_daily.zip07-May-2026 08:44 AM PDT1300K
Upper Sacramento2026050712_UpperSacramento_hefs_csv_daily.zip07-May-2026 08:17 AM PDT1366K
Feather/Yuba2026050712_FeatherYuba_hefs_csv_daily.zip07-May-2026 08:15 AM PDT2104K
Cache/Putah2026050712_cacheputah_hefs_csv_daily.zip07-May-2026 08:54 AM PDT197K
American2026050712_american_hefs_csv_daily.zip07-May-2026 08:13 AM PDT1728K
Salinas/Pajaro2026050712_SalinasPajaro_hefs_csv_daily.zip07-May-2026 08:57 AM PDT477K
South Bay2026050712_SouthBay_hefs_csv_daily.zip07-May-2026 08:57 AM PDT369K
Southern California2026050712_SouthernCalifornia_hefs_csv_daily.zip07-May-2026 08:57 AM PDT848K
San Diego/Inland2026050712_SanDiego_Inland_hefs_csv_daily.zip07-May-2026 09:00 AM PDT584K
Tulare2026050712_Tulare_hefs_csv_daily.zip07-May-2026 08:42 AM PDT793K
San Joaquin2026050712_SanJoaquin_hefs_csv_daily.zip07-May-2026 08:15 AM PDT1263K
North San Joaquin2026050712_n_sanjoaquin_hefs_csv_daily.zip07-May-2026 08:44 AM PDT490K
East Sierra2026050712_EastSierra_hefs_csv_daily.zip07-May-2026 09:09 AM PDT1918K
Humboldt2026050712_Humboldt_hefs_csv_daily.zip07-May-2026 09:07 AM PDT605K
Water Supply Indices2026050712_WSI_hefs_csv_daily.zip07-May-2026 09:06 AM PDT214K

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