Station:(451400) CHIEF JOSEPH DAM | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
From Year=1949 To Year=2012 | |||||||||||||||
Monthly Averages | Daily Extremes | Monthly Extremes | Max. Temp. | Min. Temp. | |||||||||||
Max. | Min. | Mean | High | Date | Low | Date | Highest Mean |
Year | Lowest Mean |
Year | >= 90 F |
<= 32 F |
<= 32 F |
<= 0 F |
|
F | F | F | F | dd/yyyy or yyyymmdd |
F | dd/yyyy or yyyymmdd |
F | - | F | - | # Days | # Days | # Days | # Days | |
January | 33.1 | 20.3 | 26.7 | 57 | 30/1989 | -19 | 30/1950 | 36.2 | 1990 | 9.7 | 1950 | 0.0 | 13.1 | 28.0 | 1.8 |
February | 40.6 | 24.8 | 32.7 | 68 | 28/2008 | -19 | 01/1950 | 40.7 | 1991 | 18.9 | 1956 | 0.0 | 4.1 | 23.2 | 0.6 |
March | 52.8 | 31.3 | 42.1 | 78 | 30/2003 | 2 | 10/1951 | 49.6 | 1992 | 34.2 | 1951 | 0.0 | 0.5 | 17.1 | 0.0 |
April | 64.0 | 37.8 | 50.9 | 93 | 25/1977 | 19 | 13/1968 | 56.5 | 1987 | 45.7 | 2011 | 0.0 | 0.0 | 5.8 | 0.0 |
May | 73.2 | 45.4 | 59.3 | 103 | 31/1986 | 22 | 07/2010 | 67.2 | 1958 | 53.1 | 1955 | 1.3 | 0.0 | 0.6 | 0.0 |
June | 80.5 | 52.5 | 66.5 | 108 | 23/1992 | 33 | 05/1954 | 73.6 | 1992 | 60.7 | 2011 | 4.8 | 0.0 | 0.0 | 0.0 |
July | 89.3 | 57.8 | 73.5 | 110 | 21/1994 | 31 | 09/2011 | 79.8 | 1985 | 65.3 | 2011 | 16.0 | 0.0 | 0.0 | 0.0 |
August | 88.9 | 57.0 | 72.9 | 110 | 04/1998 | 35 | 17/1973 | 78.8 | 1997 | 67.2 | 1968 | 15.3 | 0.0 | 0.0 | 0.0 |
September | 79.2 | 48.4 | 63.8 | 103 | 01/1967 | 29 | 23/2000 | 70.3 | 1967 | 58.5 | 1971 | 3.9 | 0.0 | 0.2 | 0.0 |
October | 63.2 | 37.9 | 50.6 | 86 | 03/1987 | 10 | 31/2002 | 55.5 | 1988 | 46.6 | 2009 | 0.0 | 0.0 | 6.8 | 0.0 |
November | 45.3 | 29.9 | 37.6 | 75 | 01/1967 | -9 | 23/1985 | 43.9 | 1990 | 23.3 | 1985 | 0.0 | 2.1 | 18.1 | 0.2 |
December | 34.4 | 22.6 | 28.5 | 59 | 04/2007 | -19 | 29/1968 | 34.9 | 2002 | 17.8 | 1984 | 0.0 | 11.3 | 27.2 | 0.6 |
Annual | 62.1 | 38.8 | 50.4 | 110 | 19940721 | -19 | 19500130 | 53.5 | 1998 | 46.7 | 1955 | 41.2 | 31.0 | 126.9 | 3.2 |
Winter | 36.1 | 22.5 | 29.3 | 68 | 20080228 | -19 | 19500130 | 36.6 | 1967 | 21.1 | 1985 | 0.0 | 28.5 | 78.4 | 2.9 |
Spring | 63.4 | 38.2 | 50.8 | 103 | 19860531 | 2 | 19510310 | 55.8 | 1992 | 44.5 | 1955 | 1.3 | 0.5 | 23.5 | 0.0 |
Summer | 86.2 | 55.7 | 71.0 | 110 | 19940721 | 31 | 20110709 | 74.8 | 1958 | 67.3 | 2011 | 36.0 | 0.0 | 0.0 | 0.0 |
Fall | 62.6 | 38.7 | 50.7 | 103 | 19670901 | -9 | 19851123 | 54.5 | 1998 | 44.3 | 1985 | 3.9 | 2.1 | 25.0 | 0.2 |
Winter = Dec., Jan., and Feb. | Spring = Mar., Apr., and May | |
Summer = Jun., Jul., and Aug. | Fall = Sep., Oct., and Nov. |