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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026091812_klamath_hefs_csv_daily.zip18-Sep-2026 08:25 AM PDT1185K
North Coast2026091812_NorthCoast_hefs_csv_daily.zip18-Sep-2026 08:24 AM PDT1115K
Russian/Napa2026091812_RussianNapa_hefs_csv_daily.zip18-Sep-2026 08:25 AM PDT1505K
Upper Sacramento2026091812_UpperSacramento_hefs_csv_daily.zip18-Sep-2026 08:15 AM PDT1385K
Feather/Yuba2026091812_FeatherYuba_hefs_csv_daily.zip18-Sep-2026 08:15 AM PDT2155K
Cache/Putah2026091812_cacheputah_hefs_csv_daily.zip18-Sep-2026 08:14 AM PDT207K
American2026091812_american_hefs_csv_daily.zip18-Sep-2026 08:13 AM PDT1761K
Salinas/Pajaro2026091812_SalinasPajaro_hefs_csv_daily.zip18-Sep-2026 08:28 AM PDT564K
South Bay2026091812_SouthBay_hefs_csv_daily.zip18-Sep-2026 08:27 AM PDT447K
Southern California2026091812_SouthernCalifornia_hefs_csv_daily.zip18-Sep-2026 08:33 AM PDT1024K
San Diego/Inland2026091812_SanDiego_Inland_hefs_csv_daily.zip18-Sep-2026 08:33 AM PDT678K
Tulare2026091812_Tulare_hefs_csv_daily.zip18-Sep-2026 08:20 AM PDT845K
San Joaquin2026091812_SanJoaquin_hefs_csv_daily.zip18-Sep-2026 08:24 AM PDT1292K
North San Joaquin2026091812_n_sanjoaquin_hefs_csv_daily.zip18-Sep-2026 08:21 AM PDT513K
East Sierra2026091812_EastSierra_hefs_csv_daily.zip18-Sep-2026 08:41 AM PDT2038K
Humboldt2026091812_Humboldt_hefs_csv_daily.zip18-Sep-2026 08:39 AM PDT748K
Water Supply Indices2026091812_WSI_hefs_csv_daily.zip18-Sep-2026 08:37 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