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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026052912_klamath_hefs_csv_daily.zip29-May-2026 08:00 AM PDT1119K
North Coast2026052912_NorthCoast_hefs_csv_daily.zip29-May-2026 07:59 AM PDT1021K
Russian/Napa2026052912_RussianNapa_hefs_csv_daily.zip29-May-2026 07:56 AM PDT1241K
Upper Sacramento2026052912_UpperSacramento_hefs_csv_daily.zip29-May-2026 07:34 AM PDT1330K
Feather/Yuba2026052912_FeatherYuba_hefs_csv_daily.zip29-May-2026 07:33 AM PDT2042K
Cache/Putah2026052912_cacheputah_hefs_csv_daily.zip29-May-2026 08:01 AM PDT184K
American2026052912_american_hefs_csv_daily.zip29-May-2026 07:51 AM PDT1671K
Salinas/Pajaro2026052912_SalinasPajaro_hefs_csv_daily.zip29-May-2026 07:56 AM PDT491K
South Bay2026052912_SouthBay_hefs_csv_daily.zip29-May-2026 07:49 AM PDT373K
Southern California2026052912_SouthernCalifornia_hefs_csv_daily.zip29-May-2026 07:44 AM PDT840K
San Diego/Inland2026052912_SanDiego_Inland_hefs_csv_daily.zip29-May-2026 07:49 AM PDT596K
Tulare2026052912_Tulare_hefs_csv_daily.zip29-May-2026 08:04 AM PDT784K
San Joaquin2026052912_SanJoaquin_hefs_csv_daily.zip29-May-2026 07:45 AM PDT1243K
North San Joaquin2026052912_n_sanjoaquin_hefs_csv_daily.zip29-May-2026 08:04 AM PDT465K
East Sierra2026052912_EastSierra_hefs_csv_daily.zip29-May-2026 08:10 AM PDT1856K
Humboldt2026052912_Humboldt_hefs_csv_daily.zip29-May-2026 07:54 AM PDT621K
Water Supply Indices2026052912_WSI_hefs_csv_daily.zip29-May-2026 08:11 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