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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026103012_klamath_hefs_csv_daily.zip30-Oct-2026 03:31 PM PST1191K
North Coast2026103012_NorthCoast_hefs_csv_daily.zip30-Oct-2026 03:31 PM PST1129K
Russian/Napa2026103012_RussianNapa_hefs_csv_daily.zip30-Oct-2026 03:35 PM PST1567K
Upper Sacramento2026103012_UpperSacramento_hefs_csv_daily.zip30-Oct-2026 04:08 PM PST1399K
Feather/Yuba2026103012_FeatherYuba_hefs_csv_daily.zip30-Oct-2026 04:07 PM PST2208K
Cache/Putah2026103012_cacheputah_hefs_csv_daily.zip30-Oct-2026 03:16 PM PST212K
American2026103012_american_hefs_csv_daily.zip30-Oct-2026 03:07 PM PST1782K
Salinas/Pajaro2026103012_SalinasPajaro_hefs_csv_daily.zip30-Oct-2026 03:42 PM PST554K
South Bay2026103012_SouthBay_hefs_csv_daily.zip30-Oct-2026 03:39 PM PST448K
Southern California2026103012_SouthernCalifornia_hefs_csv_daily.zip30-Oct-2026 03:48 PM PST1107K
San Diego/Inland2026103012_SanDiego_Inland_hefs_csv_daily.zip30-Oct-2026 03:48 PM PST716K
Tulare2026103012_Tulare_hefs_csv_daily.zip30-Oct-2026 03:17 PM PST870K
San Joaquin2026103012_SanJoaquin_hefs_csv_daily.zip30-Oct-2026 03:30 PM PST1306K
North San Joaquin2026103012_n_sanjoaquin_hefs_csv_daily.zip30-Oct-2026 03:29 PM PST789K
East Sierra2026103012_EastSierra_hefs_csv_daily.zip30-Oct-2026 03:49 PM PST2049K
Humboldt2026103012_Humboldt_hefs_csv_daily.zip30-Oct-2026 03:52 PM PST798K
Water Supply Indices2026103012_WSI_hefs_csv_daily.zip30-Oct-2026 03:56 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