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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026052812_klamath_hefs_csv_daily.zip28-May-2026 08:51 AM PDT1163K
North Coast2026052812_NorthCoast_hefs_csv_daily.zip28-May-2026 08:49 AM PDT1062K
Russian/Napa2026052812_RussianNapa_hefs_csv_daily.zip28-May-2026 08:51 AM PDT1327K
Upper Sacramento2026052812_UpperSacramento_hefs_csv_daily.zip28-May-2026 08:26 AM PDT1370K
Feather/Yuba2026052812_FeatherYuba_hefs_csv_daily.zip28-May-2026 08:26 AM PDT2103K
Cache/Putah2026052812_cacheputah_hefs_csv_daily.zip28-May-2026 08:39 AM PDT202K
American2026052812_american_hefs_csv_daily.zip28-May-2026 08:24 AM PDT1719K
Salinas/Pajaro2026052812_SalinasPajaro_hefs_csv_daily.zip28-May-2026 09:05 AM PDT536K
South Bay2026052812_SouthBay_hefs_csv_daily.zip28-May-2026 08:54 AM PDT389K
Southern California2026052812_SouthernCalifornia_hefs_csv_daily.zip28-May-2026 09:06 AM PDT871K
San Diego/Inland2026052812_SanDiego_Inland_hefs_csv_daily.zip28-May-2026 09:06 AM PDT598K
Tulare2026052812_Tulare_hefs_csv_daily.zip28-May-2026 08:39 AM PDT804K
San Joaquin2026052812_SanJoaquin_hefs_csv_daily.zip28-May-2026 08:26 AM PDT1260K
North San Joaquin2026052812_n_sanjoaquin_hefs_csv_daily.zip28-May-2026 08:48 AM PDT487K
East Sierra2026052812_EastSierra_hefs_csv_daily.zip28-May-2026 09:02 AM PDT1903K
Humboldt2026052812_Humboldt_hefs_csv_daily.zip28-May-2026 09:00 AM PDT629K
Water Supply Indices2026052812_WSI_hefs_csv_daily.zip28-May-2026 08:57 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