2000 California Hydrologic Data Report
11390000 BUTTE CREEK NEAR CHICO, CA. Continued
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1931 - 2000, BY WATER YEAR (WY)
OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
MEAN 138 227 457 695 826 771 681 504 287 166 133 119
MAX 775 1269 2061 2847 2925 2601 1848 1314 773 356 223 183
(WY) 1963 1974 1956 1997 1986 1995 1982 1995 1998 1998 1975 1998
MIN 65.8 77.8 89.5 91.0 114 123 114 134 79.4 54.4 46.1 51.9
(WY) 1992 1992 1991 1991 1977 1977 1977 1977 1977 1977 1931 1992
SUMMARY STATISTICS FOR 1999 CALENDAR YEAR FOR 2000 WATER YEAR WATER YEARS 1931 - 2000
ANNUAL TOTAL 159043 159399
ANNUAL MEAN 436 436 415
HIGHEST ANNUAL MEAN 834 1995
LOWEST ANNUAL MEAN 94.0 1977
HIGHEST DAILY MEAN 4960 Feb 9 5090 Feb 14 26600 Jan 1 1997
LOWEST DAILY MEAN 113 Oct 14 109 Sep 21 44 Aug 23 1931
ANNUAL SEVEN-DAY MINIMUM 114 Oct 14 113 Sep 24 44 Aug 23 1931
INSTANTANEOUS PEAK FLOW 7510 Feb 14 35600 Jan 1 1997
INSTANTANEOUS PEAK STAGE 6.61 Feb 14 17.52 Feb 17 1986
ANNUAL RUNOFF (AC-FT) 315500 316200 300700
10 PERCENT EXCEEDS 898 942 863
50 PERCENT EXCEEDS 242 217 210
90 PERCENT EXCEEDS 129 126 102
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