Table 29 U. S. Department of the Interior - Bureau of Reclamation Central Valley Operations Office Sacramento-San Joaquin Valley - Streamflow Data 2009 Mean monthly flow in cfs Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Sacramento River Shasta computed inflow 3939 11945 17103 7695 9744 4597 3446 At Keswick 3273 3257 3258 6121 8719 10785 12949 At Bend Bridge 4505 8579 7509 6949 10429 10717 13042 At Vina Bridge 4836 11673 10214 7024 9841 9401 10642 At Ord Ferry 5049 14294 11351 6160 7896 7282 8332 At Colusa 5200 13438 12694 6881 8081 7369 8394 Below Wilkins Slough 5439 12409 12593 6121 6535 5620 6592 At Verona 8904 19836 21171 11522 13696 10570 15752 Sacramento at "I" Street 9748 19777 22727 14686 17215 12876 20112 Miscellaneous Stations Folsom computed inflow 1467 4112 6547 4281 6828 2018 1267 American R at Nimbus Dam 827 790 1124 3267 3810 2821 4988 Kings River at Pine Flat 124 115 480 1393 1631 5893 6212 San Joaquin River At Friant Dam 118 95 128 156 201 208 225 Near Vernalis 1152 1499 1478 1536 2191 1311 710 Putah Creek Berryessa computed inflow 37 1560 1069 93 148 -49 -24 Putah Creek - Lake Solano 31 75 51 46 44 43 44 Stanislaus River New Melones computed inflow 652 1112 2099 1760 3229 1417 883 At Tulloch Dam 190 254 852 1951 2105 1891 1952 At Orange Blossom 216 253 290 675 874 744 427 * Data supplied by Central Valley Operations Office Daily mean is derived from 7 am daily reading.