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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026091212_klamath_hefs_csv_daily.zip12-Sep-2026 07:57 AM PDT1193K
North Coast2026091212_NorthCoast_hefs_csv_daily.zip12-Sep-2026 07:56 AM PDT1120K
Russian/Napa2026091212_RussianNapa_hefs_csv_daily.zip12-Sep-2026 07:56 AM PDT1502K
Upper Sacramento2026091212_UpperSacramento_hefs_csv_daily.zip12-Sep-2026 07:44 AM PDT1382K
Feather/Yuba2026091212_FeatherYuba_hefs_csv_daily.zip12-Sep-2026 07:43 AM PDT2149K
Cache/Putah2026091212_cacheputah_hefs_csv_daily.zip12-Sep-2026 07:41 AM PDT204K
American2026091212_american_hefs_csv_daily.zip12-Sep-2026 07:42 AM PDT1754K
Salinas/Pajaro2026091212_SalinasPajaro_hefs_csv_daily.zip12-Sep-2026 08:06 AM PDT562K
South Bay2026091212_SouthBay_hefs_csv_daily.zip12-Sep-2026 07:58 AM PDT443K
Southern California2026091212_SouthernCalifornia_hefs_csv_daily.zip12-Sep-2026 08:07 AM PDT1009K
San Diego/Inland2026091212_SanDiego_Inland_hefs_csv_daily.zip12-Sep-2026 08:07 AM PDT670K
Tulare2026091212_Tulare_hefs_csv_daily.zip12-Sep-2026 07:41 AM PDT839K
San Joaquin2026091212_SanJoaquin_hefs_csv_daily.zip12-Sep-2026 07:47 AM PDT1285K
North San Joaquin2026091212_n_sanjoaquin_hefs_csv_daily.zip12-Sep-2026 07:44 AM PDT511K
East Sierra2026091212_EastSierra_hefs_csv_daily.zip12-Sep-2026 08:08 AM PDT2026K
Humboldt2026091212_Humboldt_hefs_csv_daily.zip12-Sep-2026 08:14 AM PDT747K
Water Supply Indices2026091212_WSI_hefs_csv_daily.zip12-Sep-2026 08:26 AM PDT215K

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