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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026091612_klamath_hefs_csv_daily.zip16-Sep-2026 06:41 AM PDT1204K
North Coast2026091612_NorthCoast_hefs_csv_daily.zip16-Sep-2026 06:40 AM PDT1120K
Russian/Napa2026091612_RussianNapa_hefs_csv_daily.zip16-Sep-2026 06:48 AM PDT1508K
Upper Sacramento2026091612_UpperSacramento_hefs_csv_daily.zip16-Sep-2026 06:35 AM PDT1397K
Feather/Yuba2026091612_FeatherYuba_hefs_csv_daily.zip16-Sep-2026 06:35 AM PDT2157K
Cache/Putah2026091612_cacheputah_hefs_csv_daily.zip16-Sep-2026 06:37 AM PDT207K
American2026091612_american_hefs_csv_daily.zip16-Sep-2026 06:33 AM PDT1762K
Salinas/Pajaro2026091612_SalinasPajaro_hefs_csv_daily.zip16-Sep-2026 06:51 AM PDT565K
South Bay2026091612_SouthBay_hefs_csv_daily.zip16-Sep-2026 06:52 AM PDT445K
Southern California2026091612_SouthernCalifornia_hefs_csv_daily.zip16-Sep-2026 06:52 AM PDT1023K
San Diego/Inland2026091612_SanDiego_Inland_hefs_csv_daily.zip16-Sep-2026 06:52 AM PDT677K
Tulare2026091612_Tulare_hefs_csv_daily.zip16-Sep-2026 06:35 AM PDT848K
San Joaquin2026091612_SanJoaquin_hefs_csv_daily.zip16-Sep-2026 06:35 AM PDT1291K
North San Joaquin2026091612_n_sanjoaquin_hefs_csv_daily.zip16-Sep-2026 06:39 AM PDT513K
East Sierra2026091612_EastSierra_hefs_csv_daily.zip16-Sep-2026 06:54 AM PDT2039K
Humboldt2026091612_Humboldt_hefs_csv_daily.zip16-Sep-2026 07:00 AM PDT750K
Water Supply Indices2026091612_WSI_hefs_csv_daily.zip16-Sep-2026 07:04 AM PDT216K

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