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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026051712_klamath_hefs_csv_daily.zip17-May-2026 10:48 AM PDT1111K
North Coast2026051712_NorthCoast_hefs_csv_daily.zip17-May-2026 10:47 AM PDT1060K
Russian/Napa2026051712_RussianNapa_hefs_csv_daily.zip17-May-2026 10:12 AM PDT1252K
Upper Sacramento2026051712_UpperSacramento_hefs_csv_daily.zip17-May-2026 10:16 AM PDT1337K
Feather/Yuba2026051712_FeatherYuba_hefs_csv_daily.zip17-May-2026 10:15 AM PDT2057K
Cache/Putah2026051712_cacheputah_hefs_csv_daily.zip17-May-2026 10:47 AM PDT192K
American2026051712_american_hefs_csv_daily.zip17-May-2026 10:35 AM PDT1694K
Salinas/Pajaro2026051712_SalinasPajaro_hefs_csv_daily.zip17-May-2026 11:07 AM PDT478K
South Bay2026051712_SouthBay_hefs_csv_daily.zip17-May-2026 11:07 AM PDT375K
Southern California2026051712_SouthernCalifornia_hefs_csv_daily.zip17-May-2026 11:08 AM PDT822K
San Diego/Inland2026051712_SanDiego_Inland_hefs_csv_daily.zip17-May-2026 11:07 AM PDT587K
Tulare2026051712_Tulare_hefs_csv_daily.zip17-May-2026 10:35 AM PDT787K
San Joaquin2026051712_SanJoaquin_hefs_csv_daily.zip17-May-2026 10:26 AM PDT1251K
North San Joaquin2026051712_n_sanjoaquin_hefs_csv_daily.zip17-May-2026 10:46 AM PDT472K
East Sierra2026051712_EastSierra_hefs_csv_daily.zip17-May-2026 10:14 AM PDT1862K
Humboldt2026051712_Humboldt_hefs_csv_daily.zip17-May-2026 11:13 AM PDT618K
Water Supply Indices2026051712_WSI_hefs_csv_daily.zip17-May-2026 11:18 AM PDT213K

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