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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026110912_klamath_hefs_csv_daily.zip09-Nov-2026 06:46 AM PST1197K
North Coast2026110912_NorthCoast_hefs_csv_daily.zip09-Nov-2026 06:52 AM PST1131K
Russian/Napa2026110912_RussianNapa_hefs_csv_daily.zip09-Nov-2026 06:48 AM PST1585K
Upper Sacramento2026110912_UpperSacramento_hefs_csv_daily.zip09-Nov-2026 06:39 AM PST1402K
Feather/Yuba2026110912_FeatherYuba_hefs_csv_daily.zip09-Nov-2026 06:42 AM PST2205K
Cache/Putah2026110912_cacheputah_hefs_csv_daily.zip09-Nov-2026 06:41 AM PST214K
American2026110912_american_hefs_csv_daily.zip09-Nov-2026 06:41 AM PST1775K
Salinas/Pajaro2026110912_SalinasPajaro_hefs_csv_daily.zip09-Nov-2026 06:55 AM PST563K
South Bay2026110912_SouthBay_hefs_csv_daily.zip09-Nov-2026 06:56 AM PST463K
Southern California2026110912_SouthernCalifornia_hefs_csv_daily.zip09-Nov-2026 09:08 AM PST1118K
San Diego/Inland2026110912_SanDiego_Inland_hefs_csv_daily.zip09-Nov-2026 06:59 AM PST739K
Tulare2026110912_Tulare_hefs_csv_daily.zip09-Nov-2026 06:43 AM PST873K
San Joaquin2026110912_SanJoaquin_hefs_csv_daily.zip09-Nov-2026 06:40 AM PST1302K
North San Joaquin2026110912_n_sanjoaquin_hefs_csv_daily.zip09-Nov-2026 06:44 AM PST784K
East Sierra2026110912_EastSierra_hefs_csv_daily.zip09-Nov-2026 07:01 AM PST2055K
Humboldt2026110912_Humboldt_hefs_csv_daily.zip09-Nov-2026 08:58 AM PST802K
Water Supply Indices2026110912_WSI_hefs_csv_daily.zip09-Nov-2026 06:59 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