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Long Range Daily Ensemble CSV File Download

Forecast Groups

Forecast Group

Filename

Date/Time Last Modified

Size

Klamath2026081812_klamath_hefs_csv_daily.zip18-Aug-2026 07:02 AM PDT1161K
North Coast2026081812_NorthCoast_hefs_csv_daily.zip18-Aug-2026 07:06 AM PDT1088K
Russian/Napa2026081812_RussianNapa_hefs_csv_daily.zip18-Aug-2026 07:06 AM PDT1467K
Upper Sacramento2026081812_UpperSacramento_hefs_csv_daily.zip18-Aug-2026 06:57 AM PDT1365K
Feather/Yuba2026081812_FeatherYuba_hefs_csv_daily.zip18-Aug-2026 06:57 AM PDT2135K
Cache/Putah2026081812_cacheputah_hefs_csv_daily.zip18-Aug-2026 06:54 AM PDT196K
American2026081812_american_hefs_csv_daily.zip18-Aug-2026 06:55 AM PDT1743K
Salinas/Pajaro2026081812_SalinasPajaro_hefs_csv_daily.zip18-Aug-2026 07:08 AM PDT549K
South Bay2026081812_SouthBay_hefs_csv_daily.zip18-Aug-2026 07:08 AM PDT431K
Southern California2026081812_SouthernCalifornia_hefs_csv_daily.zip18-Aug-2026 07:14 AM PDT967K
San Diego/Inland2026081812_SanDiego_Inland_hefs_csv_daily.zip18-Aug-2026 07:14 AM PDT666K
Tulare2026081812_Tulare_hefs_csv_daily.zip18-Aug-2026 06:55 AM PDT835K
San Joaquin2026081812_SanJoaquin_hefs_csv_daily.zip18-Aug-2026 07:03 AM PDT1279K
North San Joaquin2026081812_n_sanjoaquin_hefs_csv_daily.zip18-Aug-2026 07:00 AM PDT512K
East Sierra2026081812_EastSierra_hefs_csv_daily.zip18-Aug-2026 07:14 AM PDT1993K
Humboldt2026081812_Humboldt_hefs_csv_daily.zip18-Aug-2026 07:12 AM PDT751K
Water Supply Indices2026081812_WSI_hefs_csv_daily.zip18-Aug-2026 07:16 AM PDT214K

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