BOUNDARY DAM, WASHINGTON

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(450844)

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200603
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S) JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1965 ----- z ----- z ----- z ----- z ----- z ----- z 98.00 b 100.00 80.00 73.00 57.00 45.00 100.00
1966 42.00 a 47.00 69.00 72.00 a 92.00 88.00 92.00 b 96.00 a 91.00 72.00 49.00 45.00 96.00
1967 43.00 49.00 52.00 67.00 82.00 93.00 95.00 99.00 93.00 65.00 a 50.00 41.00 99.00
1968 40.00 47.00 59.00 74.00 g 71.00 84.00 97.00 96.00 85.00 73.00 49.00 53.00 97.00
1969 36.00 47.00 64.00 61.00 f 75.00 83.00 92.00 96.00 91.00 62.00 54.00 43.00 96.00
1970 41.00 49.00 58.00 62.00 81.00 87.00 96.00 98.00 92.00 75.00 50.00 ----- z 98.00
1971 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1972 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1973 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1974 ----- z ----- z ----- z 66.00 69.00 79.00 a 94.00 95.00 g 86.00 70.00 50.00 44.00 a 95.00
1975 40.00 47.00 48.00 70.00 71.00 a 77.00 96.00 n 88.00 84.00 75.00 c 61.00 d ----- z 96.00
1976 40.00 48.00 b 52.00 a 62.00 a 77.00 a 75.00 84.00 86.00 86.00 77.00 a 54.00 40.00 86.00
1977 40.00 d 52.00 55.00 90.00 78.00 b 92.00 96.00 99.00 81.00 64.00 55.00 46.00 99.00
1978 42.00 44.00 63.00 71.00 74.00 82.00 92.00 98.00 81.00 ----- z 52.00 35.00 c 98.00
1979 33.00 a 43.00 64.00 k 78.00 b 75.00 87.00 102.00 96.00 85.00 76.00 50.00 48.00 102.00
1980 44.00 46.00 57.00 82.00 82.00 76.00 a 97.00 87.00 81.00 80.00 59.00 52.00 97.00
1981 48.00 53.00 64.00 73.00 80.00 81.00 a 89.00 98.00 87.00 59.00 52.00 51.00 98.00
1982 45.00 46.00 58.00 70.00 74.00 79.00 96.00 89.00 82.00 64.00 48.00 47.00 96.00
1983 45.00 46.00 m 57.00 73.00 85.00 82.00 87.00 96.00 77.00 65.00 55.00 36.00 96.00
1984 41.00 45.00 57.00 80.00 79.00 80.00 101.00 97.00 85.00 79.00 48.00 36.00 101.00
1985 38.00 46.00 57.00 75.00 85.00 93.00 103.00 90.00 78.00 65.00 a 47.00 42.00 103.00
1986 47.00 57.00 63.00 75.00 96.00 93.00 90.00 98.00 84.00 72.00 55.00 39.00 98.00
1987 41.00 49.00 60.00 85.00 90.00 95.00 96.00 97.00 94.00 73.00 56.00 46.00 97.00
1988 43.00 54.00 59.00 84.00 92.00 91.00 97.00 101.00 98.00 70.00 58.00 38.00 101.00
1989 48.00 45.00 54.00 78.00 82.00 91.00 99.00 98.00 82.00 73.00 57.00 42.00 99.00
1990 47.00 47.00 69.00 73.00 84.00 82.00 97.00 99.00 89.00 70.00 57.00 42.00 99.00
1991 42.00 52.00 62.00 77.00 72.00 79.00 99.00 95.00 87.00 78.00 50.00 43.00 99.00
1992 44.00 48.00 69.00 79.00 89.00 99.00 95.00 97.00 85.00 80.00 50.00 38.00 99.00
1993 40.00 45.00 57.00 65.00 96.00 89.00 89.00 90.00 87.00 73.00 52.00 40.00 96.00
1994 43.00 43.00 72.00 80.00 86.00 91.00 104.00 101.00 85.00 67.00 43.00 45.00 104.00
1995 41.00 53.00 64.00 71.00 89.00 86.00 95.00 92.00 92.00 60.00 55.00 50.00 95.00
1996 40.00 50.00 58.00 75.00 74.00 81.00 99.00 95.00 85.00 72.00 50.00 40.00 99.00
1997 43.00 49.00 58.00 62.00 78.00 83.00 91.00 96.00 86.00 72.00 60.00 44.00 96.00
1998 42.00 47.00 62.00 79.00 86.00 83.00 101.00 100.00 95.00 72.00 50.00 43.00 101.00
1999 41.00 45.00 64.00 80.00 90.00 90.00 95.00 98.00 81.00 68.00 57.00 44.00 98.00
2000 40.00 44.00 61.00 76.00 80.00 a 88.00 98.00 97.00 84.00 66.00 48.00 41.00 98.00
2001 44.00 44.00 62.00 78.00 92.00 89.00 98.00 100.00 89.00 71.00 58.00 42.00 100.00
2002 43.00 50.00 57.00 73.00 81.00 90.00 100.00 95.00 87.00 70.00 48.00 47.00 100.00
2003 47.00 49.00 57.00 77.00 91.00 95.00 103.00 102.00 94.00 80.00 54.00 39.00 103.00
2004 43.00 48.00 73.00 78.00 81.00 95.00 97.00 102.00 84.00 70.00 52.00 40.00 102.00
2005 43.00 49.00 63.00 82.00 91.00 95.00 95.00 95.00 85.00 66.00 47.00 40.00 95.00
2006 42.00 45.00 62.00 78.00 93.00 b 97.00 c 97.00 o ----- z ----- z ----- z ----- z ----- z 97.00
Period of Record Statistics
MEAN 42.22 47.83 60.44 74.89 82.71 86.84 95.92 96.14 86.26 70.73 52.55 42.97 98.85
S.D. 3.11 3.26 5.53 6.60 7.56 6.41 4.56 4.12 4.88 5.54 4.23 4.42 2.48
SKEW -0.38 0.77 0.30 -0.23 0.02 -0.04 -0.50 -0.93 0.41 -0.17 0.09 0.42 0.32
MAX 48.00 57.00 73.00 90.00 96.00 99.00 104.00 102.00 98.00 80.00 61.00 53.00 104.00
MIN 33.00 43.00 48.00 62.00 69.00 75.00 84.00 86.00 77.00 59.00 43.00 35.00 95.00
NO YRS 37 36 36 36 38 38 37 37 38 37 38 36 27