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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026110312_klamath_hefs_csv_daily.zip03-Nov-2026 03:31 PM PST1189K
North Coast2026110312_NorthCoast_hefs_csv_daily.zip03-Nov-2026 03:30 PM PST1131K
Russian/Napa2026110312_RussianNapa_hefs_csv_daily.zip03-Nov-2026 03:34 PM PST1591K
Upper Sacramento2026110312_UpperSacramento_hefs_csv_daily.zip03-Nov-2026 03:18 PM PST1408K
Feather/Yuba2026110312_FeatherYuba_hefs_csv_daily.zip03-Nov-2026 03:22 PM PST2218K
Cache/Putah2026110312_cacheputah_hefs_csv_daily.zip03-Nov-2026 03:20 PM PST214K
American2026110312_american_hefs_csv_daily.zip03-Nov-2026 03:20 PM PST1783K
Salinas/Pajaro2026110312_SalinasPajaro_hefs_csv_daily.zip03-Nov-2026 03:35 PM PST562K
South Bay2026110312_SouthBay_hefs_csv_daily.zip03-Nov-2026 03:35 PM PST473K
Southern California2026110312_SouthernCalifornia_hefs_csv_daily.zip03-Nov-2026 03:38 PM PST1105K
San Diego/Inland2026110312_SanDiego_Inland_hefs_csv_daily.zip03-Nov-2026 03:39 PM PST727K
Tulare2026110312_Tulare_hefs_csv_daily.zip03-Nov-2026 03:23 PM PST873K
San Joaquin2026110312_SanJoaquin_hefs_csv_daily.zip03-Nov-2026 03:26 PM PST1310K
North San Joaquin2026110312_n_sanjoaquin_hefs_csv_daily.zip03-Nov-2026 03:23 PM PST794K
East Sierra2026110312_EastSierra_hefs_csv_daily.zip03-Nov-2026 04:20 PM PST2068K
Humboldt2026110312_Humboldt_hefs_csv_daily.zip03-Nov-2026 03:40 PM PST793K
Water Supply Indices2026110312_WSI_hefs_csv_daily.zip03-Nov-2026 03:40 PM 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