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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026050912_klamath_hefs_csv_daily.zip09-May-2026 07:50 AM PDT1136K
North Coast2026050912_NorthCoast_hefs_csv_daily.zip09-May-2026 07:49 AM PDT1085K
Russian/Napa2026050912_RussianNapa_hefs_csv_daily.zip09-May-2026 07:50 AM PDT1298K
Upper Sacramento2026050912_UpperSacramento_hefs_csv_daily.zip09-May-2026 07:33 AM PDT1359K
Feather/Yuba2026050912_FeatherYuba_hefs_csv_daily.zip09-May-2026 07:35 AM PDT2096K
Cache/Putah2026050912_cacheputah_hefs_csv_daily.zip09-May-2026 07:39 AM PDT197K
American2026050912_american_hefs_csv_daily.zip09-May-2026 07:40 AM PDT1718K
Salinas/Pajaro2026050912_SalinasPajaro_hefs_csv_daily.zip09-May-2026 07:56 AM PDT470K
South Bay2026050912_SouthBay_hefs_csv_daily.zip09-May-2026 07:52 AM PDT366K
Southern California2026050912_SouthernCalifornia_hefs_csv_daily.zip09-May-2026 07:56 AM PDT835K
San Diego/Inland2026050912_SanDiego_Inland_hefs_csv_daily.zip09-May-2026 07:56 AM PDT582K
Tulare2026050912_Tulare_hefs_csv_daily.zip09-May-2026 07:24 AM PDT792K
San Joaquin2026050912_SanJoaquin_hefs_csv_daily.zip09-May-2026 07:29 AM PDT1255K
North San Joaquin2026050912_n_sanjoaquin_hefs_csv_daily.zip09-May-2026 07:23 AM PDT486K
East Sierra2026050912_EastSierra_hefs_csv_daily.zip09-May-2026 07:26 AM PDT1901K
Humboldt2026050912_Humboldt_hefs_csv_daily.zip09-May-2026 06:58 AM PDT611K
Water Supply Indices2026050912_WSI_hefs_csv_daily.zip09-May-2026 07:45 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