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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026052612_klamath_hefs_csv_daily.zip26-May-2026 07:43 AM PDT1140K
North Coast2026052612_NorthCoast_hefs_csv_daily.zip26-May-2026 07:40 AM PDT1081K
Russian/Napa2026052612_RussianNapa_hefs_csv_daily.zip26-May-2026 07:42 AM PDT1294K
Upper Sacramento2026052612_UpperSacramento_hefs_csv_daily.zip26-May-2026 07:26 AM PDT1375K
Feather/Yuba2026052612_FeatherYuba_hefs_csv_daily.zip26-May-2026 07:25 AM PDT2109K
Cache/Putah2026052612_cacheputah_hefs_csv_daily.zip26-May-2026 07:38 AM PDT194K
American2026052612_american_hefs_csv_daily.zip26-May-2026 07:22 AM PDT1725K
Salinas/Pajaro2026052612_SalinasPajaro_hefs_csv_daily.zip26-May-2026 07:49 AM PDT489K
South Bay2026052612_SouthBay_hefs_csv_daily.zip26-May-2026 07:50 AM PDT386K
Southern California2026052612_SouthernCalifornia_hefs_csv_daily.zip26-May-2026 07:54 AM PDT859K
San Diego/Inland2026052612_SanDiego_Inland_hefs_csv_daily.zip26-May-2026 07:54 AM PDT598K
Tulare2026052612_Tulare_hefs_csv_daily.zip26-May-2026 07:38 AM PDT799K
San Joaquin2026052612_SanJoaquin_hefs_csv_daily.zip26-May-2026 07:24 AM PDT1256K
North San Joaquin2026052612_n_sanjoaquin_hefs_csv_daily.zip26-May-2026 07:39 AM PDT486K
East Sierra2026052612_EastSierra_hefs_csv_daily.zip26-May-2026 07:55 AM PDT1908K
Humboldt2026052612_Humboldt_hefs_csv_daily.zip26-May-2026 07:56 AM PDT627K
Water Supply Indices2026052612_WSI_hefs_csv_daily.zip26-May-2026 08:00 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