PLAIN, WASHINGTON

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(456534)

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
1948 ----- z ----- z ----- z ----- z ----- z ----- z 91.00 88.00 89.00 70.00 55.00 42.00 91.00
1949 45.00 45.00 c 57.00 77.00 90.00 92.00 96.00 92.00 90.00 71.00 62.00 45.00 96.00
1950 42.00 45.00 48.00 66.00 78.00 c 85.00 92.00 93.00 92.00 63.00 46.00 p 43.00 93.00
1951 48.00 50.00 56.00 ----- z ----- z 88.00 94.00 92.00 85.00 70.00 ----- z ----- z 94.00
1952 41.00 a 52.00 64.00 83.00 82.00 b 83.00 98.00 94.00 90.00 84.00 60.00 41.00 98.00
1953 51.00 54.00 o 64.00 f 68.00 84.00 88.00 97.00 c 95.00 91.00 74.00 55.00 49.00 97.00
1954 45.00 52.00 55.00 66.00 87.00 a 82.00 92.00 d 94.00 82.00 67.00 61.00 43.00 94.00
1955 52.00 51.00 53.00 66.00 73.00 a 93.00 98.00 95.00 94.00 a 70.00 60.00 40.00 98.00
1956 42.00 48.00 53.00 a 76.00 91.00 c 81.00 99.00 98.00 86.00 76.00 53.00 48.00 99.00
1957 42.00 56.00 54.00 f 82.00 m 90.00 90.00 88.00 d 87.00 91.00 69.00 63.00 b 46.00 h 91.00
1958 48.00 55.00 55.00 73.00 93.00 95.00 98.00 ----- z ----- z ----- z 65.00 52.00 98.00
1959 45.00 51.00 59.00 70.00 80.00 89.00 102.00 97.00 86.00 70.00 67.00 46.00 102.00
1960 51.00 51.00 b 72.00 i ----- z 81.00 c 89.00 102.00 ----- z 89.00 81.00 59.00 a 46.00 d 102.00
1961 46.00 b 56.00 c 65.00 c 64.00 k ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 65.00
1962 54.00 c 64.00 c 68.00 f 77.00 b 71.00 a 86.00 l 97.00 c ----- z 90.00 a ----- z 55.00 b 49.00 d 97.00
1963 49.00 b 63.00 e 65.00 a 67.00 i ----- z ----- z ----- z ----- z ----- z ----- z 54.00 l 43.00 k 67.00
1964 45.00 59.00 a 66.00 f 67.00 b 81.00 b 85.00 d 95.00 g 95.00 a 85.00 h 78.00 d 52.00 b 47.00 f 95.00
1965 48.00 55.00 b 62.00 a 77.00 b 83.00 d 90.00 b 101.00 a 101.00 e 83.00 c 78.00 b 61.00 a 46.00 p 101.00
1966 44.00 l 53.00 c 72.00 c 76.00 92.00 a 88.00 a 88.00 f 98.00 c 94.00 b 80.00 62.00 a 45.00 c 98.00
1967 49.00 c 53.00 b 60.00 a 68.00 87.00 93.00 a 97.00 c 99.00 c 92.00 h 71.00 h ----- z ----- z 99.00
1968 ----- z ----- z ----- z ----- z 83.00 92.00 99.00 93.00 88.00 68.00 50.00 44.00 99.00
1969 38.00 43.00 o 62.00 71.00 85.00 93.00 92.00 95.00 90.00 70.00 58.00 42.00 95.00
1970 40.00 51.00 57.00 60.00 84.00 94.00 95.00 99.00 81.00 83.00 58.00 43.00 n 99.00
1971 58.00 54.00 51.00 72.00 83.00 86.00 100.00 98.00 80.00 78.00 60.00 48.00 100.00
1972 48.00 47.00 62.00 70.00 87.00 88.00 92.00 100.00 90.00 80.00 52.00 49.00 100.00
1973 43.00 55.00 61.00 72.00 89.00 94.00 97.00 97.00 93.00 70.00 44.00 42.00 97.00
1974 48.00 55.00 60.00 72.00 76.00 93.00 96.00 96.00 90.00 78.00 55.00 44.00 96.00
1975 50.00 49.00 61.00 69.00 82.00 87.00 101.00 90.00 90.00 79.00 63.00 53.00 101.00
1976 53.00 50.00 57.00 65.00 83.00 89.00 92.00 92.00 86.00 82.00 56.00 54.00 92.00
1977 52.00 61.00 62.00 88.00 78.00 95.00 94.00 100.00 88.00 73.00 51.00 48.00 100.00
1978 48.00 52.00 68.00 74.00 83.00 96.00 97.00 a 99.00 a 83.00 77.00 64.00 55.00 99.00
1979 43.00 53.00 68.00 81.00 85.00 94.00 100.00 96.00 90.00 86.00 54.00 50.00 100.00
1980 42.00 53.00 58.00 81.00 79.00 82.00 95.00 90.00 86.00 86.00 52.00 48.00 95.00
1981 50.00 55.00 66.00 81.00 79.00 88.00 93.00 100.00 95.00 72.00 61.00 46.00 100.00
1982 48.00 52.00 63.00 75.00 86.00 94.00 100.00 94.00 88.00 74.00 52.00 45.00 100.00
1983 59.00 49.00 59.00 76.00 97.00 86.00 94.00 95.00 81.00 69.00 52.00 43.00 97.00
1984 53.00 49.00 63.00 70.00 87.00 85.00 96.00 97.00 86.00 75.00 47.00 45.00 97.00
1985 44.00 55.00 65.00 77.00 85.00 91.00 98.00 90.00 78.00 71.00 57.00 43.00 98.00
1986 45.00 57.00 68.00 75.00 98.00 94.00 91.00 96.00 86.00 81.00 54.00 43.00 98.00
1987 44.00 50.00 71.00 83.00 90.00 94.00 92.00 96.00 92.00 82.00 63.00 45.00 96.00
1988 43.00 58.00 61.00 80.00 85.00 87.00 95.00 93.00 98.00 84.00 54.00 45.00 98.00
1989 56.00 45.00 55.00 76.00 79.00 87.00 93.00 94.00 87.00 77.00 63.00 48.00 94.00
1990 44.00 56.00 69.00 74.00 82.00 87.00 98.00 96.00 90.00 64.00 64.00 43.00 98.00
1991 51.00 57.00 66.00 74.00 73.00 82.00 93.00 93.00 88.00 81.00 50.00 49.00 93.00
1992 45.00 50.00 74.00 76.00 90.00 98.00 96.00 97.00 81.00 82.00 59.00 45.00 98.00
1993 50.00 48.00 58.00 62.00 93.00 84.00 82.00 91.00 90.00 82.00 57.00 42.00 93.00
1994 54.00 45.00 73.00 78.00 85.00 90.00 100.00 92.00 89.00 71.00 46.00 40.00 100.00
1995 41.00 56.00 63.00 73.00 86.00 88.00 94.00 88.00 92.00 64.00 49.00 46.00 94.00
1996 49.00 50.00 63.00 76.00 76.00 82.00 96.00 95.00 86.00 75.00 50.00 39.00 96.00
1997 49.00 52.00 61.00 62.00 85.00 83.00 94.00 95.00 86.00 69.00 55.00 51.00 95.00
1998 43.00 46.00 63.00 78.00 83.00 88.00 99.00 99.00 96.00 76.00 55.00 44.00 99.00
1999 50.00 44.00 61.00 80.00 85.00 91.00 92.00 95.00 85.00 70.00 52.00 48.00 95.00
2000 41.00 46.00 65.00 74.00 74.00 89.00 96.00 91.00 86.00 73.00 54.00 37.00 96.00
2001 42.00 47.00 63.00 78.00 91.00 86.00 92.00 96.00 89.00 79.00 56.00 40.00 96.00
2002 45.00 50.00 59.00 75.00 74.00 94.00 95.00 95.00 87.00 72.00 55.00 42.00 95.00
2003 48.00 51.00 67.00 66.00 84.00 91.00 98.00 96.00 91.00 82.00 52.00 42.00 98.00
2004 47.00 50.00 69.00 79.00 80.00 93.00 95.00 97.00 84.00 78.00 53.00 46.00 97.00
2005 47.00 59.00 71.00 81.00 88.00 88.00 94.00 93.00 83.00 67.00 47.00 42.00 94.00
2006 50.00 47.00 58.00 79.00 93.00 94.00 b 93.00 l ----- z ----- z ----- z ----- z ----- z 94.00
Period of Record Statistics
MEAN 47.21 52.05 62.02 73.90 84.15 89.24 95.52 94.85 87.94 75.11 55.92 45.30 97.12
S.D. 4.60 4.62 5.71 5.98 6.02 4.23 3.69 3.27 4.21 6.01 5.35 3.92 2.44
SKEW 0.38 0.42 -0.03 -0.28 -0.02 -0.13 -0.77 -0.35 -0.10 -0.06 0.00 0.43 -0.14
MAX 59.00 64.00 74.00 88.00 98.00 98.00 102.00 101.00 98.00 86.00 67.00 55.00 102.00
MIN 38.00 44.00 48.00 60.00 71.00 81.00 82.00 87.00 78.00 63.00 44.00 37.00 92.00
NO YRS 56 55 52 52 55 55 54 53 53 53 53 50 41