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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026102712_klamath_hefs_csv_daily.zip27-Oct-2026 02:54 PM PST1193K
North Coast2026102712_NorthCoast_hefs_csv_daily.zip27-Oct-2026 02:53 PM PST1124K
Russian/Napa2026102712_RussianNapa_hefs_csv_daily.zip27-Oct-2026 03:05 PM PST1573K
Upper Sacramento2026102712_UpperSacramento_hefs_csv_daily.zip27-Oct-2026 02:36 PM PST1397K
Feather/Yuba2026102712_FeatherYuba_hefs_csv_daily.zip27-Oct-2026 02:36 PM PST2204K
Cache/Putah2026102712_cacheputah_hefs_csv_daily.zip27-Oct-2026 02:52 PM PST212K
American2026102712_american_hefs_csv_daily.zip27-Oct-2026 02:33 PM PST1770K
Salinas/Pajaro2026102712_SalinasPajaro_hefs_csv_daily.zip27-Oct-2026 03:07 PM PST562K
South Bay2026102712_SouthBay_hefs_csv_daily.zip27-Oct-2026 03:07 PM PST461K
Southern California2026102712_SouthernCalifornia_hefs_csv_daily.zip27-Oct-2026 03:07 PM PST1144K
San Diego/Inland2026102712_SanDiego_Inland_hefs_csv_daily.zip27-Oct-2026 03:13 PM PST733K
Tulare2026102712_Tulare_hefs_csv_daily.zip27-Oct-2026 02:52 PM PST867K
San Joaquin2026102712_SanJoaquin_hefs_csv_daily.zip27-Oct-2026 05:54 PM PST1306K
North San Joaquin2026102712_n_sanjoaquin_hefs_csv_daily.zip27-Oct-2026 02:51 PM PST786K
East Sierra2026102712_EastSierra_hefs_csv_daily.zip27-Oct-2026 03:14 PM PST2048K
Humboldt2026102712_Humboldt_hefs_csv_daily.zip27-Oct-2026 08:28 PM PST781K
Water Supply Indices2026102712_WSI_hefs_csv_daily.zip27-Oct-2026 03:20 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

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Forecast Groups Archive

Forecast Group

Start Date

End Date