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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026051612_klamath_hefs_csv_daily.zip16-May-2026 09:32 AM PDT1112K
North Coast2026051612_NorthCoast_hefs_csv_daily.zip16-May-2026 09:31 AM PDT1062K
Russian/Napa2026051612_RussianNapa_hefs_csv_daily.zip16-May-2026 09:32 AM PDT1248K
Upper Sacramento2026051612_UpperSacramento_hefs_csv_daily.zip16-May-2026 09:07 AM PDT1334K
Feather/Yuba2026051612_FeatherYuba_hefs_csv_daily.zip16-May-2026 09:06 AM PDT2064K
Cache/Putah2026051612_cacheputah_hefs_csv_daily.zip16-May-2026 09:25 AM PDT191K
American2026051612_american_hefs_csv_daily.zip16-May-2026 09:04 AM PDT1703K
Salinas/Pajaro2026051612_SalinasPajaro_hefs_csv_daily.zip16-May-2026 09:35 AM PDT480K
South Bay2026051612_SouthBay_hefs_csv_daily.zip16-May-2026 09:36 AM PDT375K
Southern California2026051612_SouthernCalifornia_hefs_csv_daily.zip16-May-2026 09:39 AM PDT836K
San Diego/Inland2026051612_SanDiego_Inland_hefs_csv_daily.zip16-May-2026 09:38 AM PDT590K
Tulare2026051612_Tulare_hefs_csv_daily.zip16-May-2026 09:25 AM PDT791K
San Joaquin2026051612_SanJoaquin_hefs_csv_daily.zip16-May-2026 09:06 AM PDT1255K
North San Joaquin2026051612_n_sanjoaquin_hefs_csv_daily.zip16-May-2026 09:24 AM PDT475K
East Sierra2026051612_EastSierra_hefs_csv_daily.zip16-May-2026 09:45 AM PDT1873K
Humboldt2026051612_Humboldt_hefs_csv_daily.zip16-May-2026 09:42 AM PDT616K
Water Supply Indices2026051612_WSI_hefs_csv_daily.zip16-May-2026 09:43 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