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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026051312_klamath_hefs_csv_daily.zip13-May-2026 08:42 AM PDT1122K
North Coast2026051312_NorthCoast_hefs_csv_daily.zip13-May-2026 08:49 AM PDT1068K
Russian/Napa2026051312_RussianNapa_hefs_csv_daily.zip13-May-2026 08:55 AM PDT1275K
Upper Sacramento2026051312_UpperSacramento_hefs_csv_daily.zip13-May-2026 08:26 AM PDT1340K
Feather/Yuba2026051312_FeatherYuba_hefs_csv_daily.zip13-May-2026 08:25 AM PDT2057K
Cache/Putah2026051312_cacheputah_hefs_csv_daily.zip13-May-2026 08:46 AM PDT195K
American2026051312_american_hefs_csv_daily.zip13-May-2026 08:42 AM PDT1686K
Salinas/Pajaro2026051312_SalinasPajaro_hefs_csv_daily.zip13-May-2026 08:58 AM PDT475K
South Bay2026051312_SouthBay_hefs_csv_daily.zip13-May-2026 08:56 AM PDT367K
Southern California2026051312_SouthernCalifornia_hefs_csv_daily.zip13-May-2026 09:00 AM PDT837K
San Diego/Inland2026051312_SanDiego_Inland_hefs_csv_daily.zip13-May-2026 09:06 AM PDT585K
Tulare2026051312_Tulare_hefs_csv_daily.zip13-May-2026 08:23 AM PDT779K
San Joaquin2026051312_SanJoaquin_hefs_csv_daily.zip13-May-2026 08:37 AM PDT1233K
North San Joaquin2026051312_n_sanjoaquin_hefs_csv_daily.zip13-May-2026 08:36 AM PDT476K
East Sierra2026051312_EastSierra_hefs_csv_daily.zip13-May-2026 09:07 AM PDT1853K
Humboldt2026051312_Humboldt_hefs_csv_daily.zip13-May-2026 09:07 AM PDT615K
Water Supply Indices2026051312_WSI_hefs_csv_daily.zip13-May-2026 09:11 AM PDT212K

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