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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026110812_klamath_hefs_csv_daily.zip08-Nov-2026 07:21 AM PST1193K
North Coast2026110812_NorthCoast_hefs_csv_daily.zip08-Nov-2026 07:22 AM PST1129K
Russian/Napa2026110812_RussianNapa_hefs_csv_daily.zip08-Nov-2026 07:25 AM PST1576K
Upper Sacramento2026110812_UpperSacramento_hefs_csv_daily.zip08-Nov-2026 07:10 AM PST1396K
Feather/Yuba2026110812_FeatherYuba_hefs_csv_daily.zip08-Nov-2026 07:12 AM PST2193K
Cache/Putah2026110812_cacheputah_hefs_csv_daily.zip08-Nov-2026 07:16 AM PST213K
American2026110812_american_hefs_csv_daily.zip08-Nov-2026 07:16 AM PST1772K
Salinas/Pajaro2026110812_SalinasPajaro_hefs_csv_daily.zip08-Nov-2026 07:29 AM PST561K
South Bay2026110812_SouthBay_hefs_csv_daily.zip08-Nov-2026 07:29 AM PST456K
Southern California2026110812_SouthernCalifornia_hefs_csv_daily.zip08-Nov-2026 07:32 AM PST1108K
San Diego/Inland2026110812_SanDiego_Inland_hefs_csv_daily.zip08-Nov-2026 07:32 AM PST730K
Tulare2026110812_Tulare_hefs_csv_daily.zip08-Nov-2026 07:16 AM PST872K
San Joaquin2026110812_SanJoaquin_hefs_csv_daily.zip08-Nov-2026 07:12 AM PST1299K
North San Joaquin2026110812_n_sanjoaquin_hefs_csv_daily.zip08-Nov-2026 07:19 AM PST779K
East Sierra2026110812_EastSierra_hefs_csv_daily.zip08-Nov-2026 07:35 AM PST2043K
Humboldt2026110812_Humboldt_hefs_csv_daily.zip08-Nov-2026 07:35 AM PST795K
Water Supply Indices2026110812_WSI_hefs_csv_daily.zip08-Nov-2026 07:35 AM PST213K

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

Enter desired location(s) below (comma separated) (some older browsers may allow only one file download at a time):

Forecast Groups Archive

Forecast Group

Start Date

End Date