Annual Precipitation Totals Boise ID, airport for the 72-year period 1940-2011 normal (1981-2010) = 11.73 inches Rank Rank Among Among Data Year Driest Wettest el nino / la nina djf mam jja son 6.64 1966 1 72 w w+ 6.96 2002 2 71 w- w w 7.43 1949 3 70 w- w 7.67 1992 4 69 w+ w+ w w 7.68 1967 5 68 c+ c- 8.09 2007 6 67 w c- 8.16 1954 7 66 c- c- c- 8.49 1987 8 65 w+ w+ w+ w 8.51 2001 9 64 8.59 1999 10 63 c+ c+ c- c 9.18 1961 11 62 c- 9.22 1952 12 61 w+ c- 9.25 2008 13 60 c+ c 9.40 1994 14 59 w+ w+ w+ 9.46 1974 15 58 c+ c+ c+ c+ 9.47 1991 16 57 w+ w w+ 9.86 1946 17 56 w w+ w 9.92 1943 18 55 c+ c+ c- 10.01 1959 19 54 w+ c w- c 10.08 1947 20 53 w w- c c 10.11 2003 21 52 w- 10.44 1989 22 51 c+ c+ c c- 10.45 1944 23 50 w- w- w- 10.49 2011 24 49 c+ c- c 10.68 1962 25 48 c+ c- c- c+ 10.92 1960 26 47 c- c c c- 10.97 1968 27 46 c- c- c 11.08 1997 28 45 w w+ w+ 11.14 1985 29 44 c 11.30 1988 30 43 w- c+ c+ 11.31 1972 31 tie c- w+ w+ w+ 11.31 2009 tie 41 w- w 11.37 1973 33 40 w+ c+ c+ 11.50 2004 34 39 w- w- 11.82 1956 35 38 c+ c+ c+ c+ 11.83 1978 36 37 w+ w- c 11.84 1971 37 36 c+ c+ c c+ 11.91 1948 38 35 w- 12.04 2000 39 34 c+ c+ c+ c 12.07 1979 40 tie c- 12.07 1990 tie 32 w+ w- 12.10 2006 42 31 12.19 1955 43 30 c c- c+ c+ 12.20 1976 44 tie c+ c w+ 12.20 1977 tie 28 w- w+ w+ w+ 12.31 1969 46 27 w+ w w w 12.52 1965 47 26 w w+ w+ 12.59 1957 48 25 c- w w- w 12.76 1993 49 24 w+ w+ w+ w 13.24 1984 50 23 13.25 1963 51 22 c c w w+ 13.44 1945 52 21 c- c- c+ c- 13.63 2005 53 20 13.69 1951 54 tie c+ w w+ w+ 13.69 1975 tie 18 c+ c+ c+ 13.77 1940 56 17 w w+ w+ w+ 13.80 1953 57 16 w w+ w+ w 13.81 1941 58 15 w+ w+ w+ w+ 13.83 1982 59 14 c w- w+ w+ 13.99 1950 60 13 c+ c+ c+ c+ 14.06 1995 61 12 w 14.12 1996 62 11 c- 14.18 1970 63 10 w c- c+ 14.31 1986 64 9 w- 14.32 1958 65 8 w+ w- c- 14.48 1942 66 7 w+ w- c- c 15.01 2010 67 6 w w- c+ 15.21 1980 68 5 w+ w- 15.28 1981 69 4 w- c+ 15.77 1964 70 3 w c c+ c+ 16.75 1998 71 2 w+ w 18.77 1983 72 1 w+ w+ w- c- c = la nina w = el nino weak c- or w- moderate c or w strong c+ or w+ no nino [blank] 1/4/2012 precip boise annual rank airport.txt