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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026091512_klamath_hefs_csv_daily.zip15-Sep-2026 06:52 AM PDT1197K
North Coast2026091512_NorthCoast_hefs_csv_daily.zip15-Sep-2026 06:52 AM PDT1120K
Russian/Napa2026091512_RussianNapa_hefs_csv_daily.zip15-Sep-2026 06:58 AM PDT1508K
Upper Sacramento2026091512_UpperSacramento_hefs_csv_daily.zip15-Sep-2026 06:41 AM PDT1391K
Feather/Yuba2026091512_FeatherYuba_hefs_csv_daily.zip15-Sep-2026 06:44 AM PDT2156K
Cache/Putah2026091512_cacheputah_hefs_csv_daily.zip15-Sep-2026 06:51 AM PDT208K
American2026091512_american_hefs_csv_daily.zip15-Sep-2026 06:49 AM PDT1760K
Salinas/Pajaro2026091512_SalinasPajaro_hefs_csv_daily.zip15-Sep-2026 07:03 AM PDT564K
South Bay2026091512_SouthBay_hefs_csv_daily.zip15-Sep-2026 07:00 AM PDT445K
Southern California2026091512_SouthernCalifornia_hefs_csv_daily.zip15-Sep-2026 07:05 AM PDT1017K
San Diego/Inland2026091512_SanDiego_Inland_hefs_csv_daily.zip15-Sep-2026 07:06 AM PDT674K
Tulare2026091512_Tulare_hefs_csv_daily.zip15-Sep-2026 06:49 AM PDT844K
San Joaquin2026091512_SanJoaquin_hefs_csv_daily.zip15-Sep-2026 06:41 AM PDT1291K
North San Joaquin2026091512_n_sanjoaquin_hefs_csv_daily.zip15-Sep-2026 06:49 AM PDT512K
East Sierra2026091512_EastSierra_hefs_csv_daily.zip15-Sep-2026 07:10 AM PDT2037K
Humboldt2026091512_Humboldt_hefs_csv_daily.zip15-Sep-2026 07:09 AM PDT748K
Water Supply Indices2026091512_WSI_hefs_csv_daily.zip15-Sep-2026 07:14 AM PDT215K

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