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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026052512_klamath_hefs_csv_daily.zip25-May-2026 07:15 AM PDT1128K
North Coast2026052512_NorthCoast_hefs_csv_daily.zip25-May-2026 07:18 AM PDT1067K
Russian/Napa2026052512_RussianNapa_hefs_csv_daily.zip25-May-2026 07:25 AM PDT1250K
Upper Sacramento2026052512_UpperSacramento_hefs_csv_daily.zip25-May-2026 06:58 AM PDT1357K
Feather/Yuba2026052512_FeatherYuba_hefs_csv_daily.zip25-May-2026 06:57 AM PDT2091K
Cache/Putah2026052512_cacheputah_hefs_csv_daily.zip25-May-2026 07:02 AM PDT189K
American2026052512_american_hefs_csv_daily.zip25-May-2026 06:55 AM PDT1720K
Salinas/Pajaro2026052512_SalinasPajaro_hefs_csv_daily.zip25-May-2026 07:27 AM PDT483K
South Bay2026052512_SouthBay_hefs_csv_daily.zip25-May-2026 07:27 AM PDT372K
Southern California2026052512_SouthernCalifornia_hefs_csv_daily.zip25-May-2026 07:28 AM PDT844K
San Diego/Inland2026052512_SanDiego_Inland_hefs_csv_daily.zip25-May-2026 07:28 AM PDT593K
Tulare2026052512_Tulare_hefs_csv_daily.zip25-May-2026 07:02 AM PDT794K
San Joaquin2026052512_SanJoaquin_hefs_csv_daily.zip25-May-2026 07:05 AM PDT1251K
North San Joaquin2026052512_n_sanjoaquin_hefs_csv_daily.zip25-May-2026 07:12 AM PDT477K
East Sierra2026052512_EastSierra_hefs_csv_daily.zip25-May-2026 07:34 AM PDT1895K
Humboldt2026052512_Humboldt_hefs_csv_daily.zip25-May-2026 07:13 AM PDT639K
Water Supply Indices2026052512_WSI_hefs_csv_daily.zip25-May-2026 07:10 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