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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026052312_klamath_hefs_csv_daily.zip23-May-2026 08:17 AM PDT1110K
North Coast2026052312_NorthCoast_hefs_csv_daily.zip23-May-2026 08:27 AM PDT1042K
Russian/Napa2026052312_RussianNapa_hefs_csv_daily.zip23-May-2026 08:28 AM PDT1219K
Upper Sacramento2026052312_UpperSacramento_hefs_csv_daily.zip23-May-2026 07:23 AM PDT1328K
Feather/Yuba2026052312_FeatherYuba_hefs_csv_daily.zip23-May-2026 07:36 AM PDT2035K
Cache/Putah2026052312_cacheputah_hefs_csv_daily.zip23-May-2026 08:07 AM PDT178K
American2026052312_american_hefs_csv_daily.zip23-May-2026 07:35 AM PDT1697K
Salinas/Pajaro2026052312_SalinasPajaro_hefs_csv_daily.zip23-May-2026 08:29 AM PDT483K
South Bay2026052312_SouthBay_hefs_csv_daily.zip23-May-2026 08:30 AM PDT371K
Southern California2026052312_SouthernCalifornia_hefs_csv_daily.zip23-May-2026 08:35 AM PDT835K
San Diego/Inland2026052312_SanDiego_Inland_hefs_csv_daily.zip23-May-2026 08:35 AM PDT588K
Tulare2026052312_Tulare_hefs_csv_daily.zip23-May-2026 08:07 AM PDT785K
San Joaquin2026052312_SanJoaquin_hefs_csv_daily.zip23-May-2026 08:10 AM PDT1248K
North San Joaquin2026052312_n_sanjoaquin_hefs_csv_daily.zip23-May-2026 08:15 AM PDT467K
East Sierra2026052312_EastSierra_hefs_csv_daily.zip23-May-2026 08:23 AM PDT1876K
Humboldt2026052312_Humboldt_hefs_csv_daily.zip23-May-2026 08:21 AM PDT632K
Water Supply Indices2026052312_WSI_hefs_csv_daily.zip23-May-2026 08:19 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