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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026052012_klamath_hefs_csv_daily.zip20-May-2026 07:48 AM PDT1110K
North Coast2026052012_NorthCoast_hefs_csv_daily.zip20-May-2026 07:50 AM PDT1050K
Russian/Napa2026052012_RussianNapa_hefs_csv_daily.zip20-May-2026 07:59 AM PDT1244K
Upper Sacramento2026052012_UpperSacramento_hefs_csv_daily.zip20-May-2026 07:17 AM PDT1339K
Feather/Yuba2026052012_FeatherYuba_hefs_csv_daily.zip20-May-2026 07:16 AM PDT2054K
Cache/Putah2026052012_cacheputah_hefs_csv_daily.zip20-May-2026 07:21 AM PDT191K
American2026052012_american_hefs_csv_daily.zip20-May-2026 07:21 AM PDT1692K
Salinas/Pajaro2026052012_SalinasPajaro_hefs_csv_daily.zip20-May-2026 08:01 AM PDT485K
South Bay2026052012_SouthBay_hefs_csv_daily.zip20-May-2026 08:01 AM PDT371K
Southern California2026052012_SouthernCalifornia_hefs_csv_daily.zip20-May-2026 08:08 AM PDT841K
San Diego/Inland2026052012_SanDiego_Inland_hefs_csv_daily.zip20-May-2026 08:07 AM PDT584K
Tulare2026052012_Tulare_hefs_csv_daily.zip20-May-2026 07:27 AM PDT788K
San Joaquin2026052012_SanJoaquin_hefs_csv_daily.zip20-May-2026 07:29 AM PDT1251K
North San Joaquin2026052012_n_sanjoaquin_hefs_csv_daily.zip20-May-2026 07:46 AM PDT469K
East Sierra2026052012_EastSierra_hefs_csv_daily.zip20-May-2026 08:09 AM PDT1876K
Humboldt2026052012_Humboldt_hefs_csv_daily.zip20-May-2026 08:07 AM PDT632K
Water Supply Indices2026052012_WSI_hefs_csv_daily.zip20-May-2026 08:02 AM PDT213K

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 (some older browsers may allow only one file download at a time):

Forecast Groups Archive

Forecast Group

Start Date

End Date