ELTOPIA 8 WSW, WASHINGTON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(452542)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200701
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
1974 ----- z ----- z 33.23 39.00 42.58 51.80 54.29 53.42 47.23 38.26 35.30 29.71 42.48
1975 25.45 26.14 31.10 32.40 41.58 48.27 57.94 51.52 46.07 40.13 30.27 26.97 b 38.15
1976 27.16 27.52 29.67 a 36.53 41.74 46.33 53.45 53.23 49.48 a 37.00 a 31.67 24.94 38.23
1977 21.39 31.14 32.13 39.10 42.00 52.40 52.48 b 57.06 46.37 37.90 30.27 28.19 39.20
1978 25.84 31.39 34.35 37.77 41.97 a 50.17 54.35 53.42 47.07 35.45 23.90 22.06 38.15
1979 7.16 27.46 33.00 37.77 45.29 50.70 54.32 54.90 50.07 42.45 29.43 30.42 38.58
1980 19.03 29.90 32.03 39.60 46.42 48.97 53.58 49.35 49.52 a 39.26 34.17 31.77 39.47
1981 32.65 30.71 33.71 37.20 43.87 47.93 52.35 55.45 47.83 37.71 32.93 b 26.29 39.89
1982 21.61 28.43 31.71 32.57 42.03 52.43 52.71 53.84 47.90 38.10 27.60 26.10 37.92
1983 30.90 32.04 37.52 34.83 44.39 48.77 52.97 56.61 44.50 39.97 37.30 17.81 39.80
1984 26.71 31.86 35.74 36.60 40.84 49.77 54.19 54.19 45.17 35.23 32.73 18.94 38.50
1985 22.03 20.79 29.42 36.97 43.52 48.27 56.13 51.00 44.23 36.48 16.23 16.10 35.10
1986 25.58 29.68 34.94 35.30 45.87 54.13 51.94 57.32 47.20 39.68 35.53 27.45 40.38
1987 23.29 29.93 35.32 ----- z 46.94 50.83 a 54.23 53.39 49.10 37.84 33.37 24.94 39.92
1988 24.26 27.38 31.13 39.97 43.45 50.97 54.39 53.48 47.33 45.48 35.73 25.77 39.95
1989 29.00 16.00 33.58 40.43 44.52 53.17 53.87 54.74 47.67 39.90 35.07 28.06 39.67
1990 31.84 27.29 32.35 40.43 44.55 50.80 58.23 56.94 50.93 38.58 35.30 17.00 40.35
1991 21.71 33.57 31.68 37.73 44.23 48.83 55.48 58.48 49.07 38.52 34.30 30.45 40.34
1992 31.74 34.34 35.39 41.20 45.61 54.57 56.81 54.81 46.77 41.06 33.50 23.97 41.65
1993 15.26 22.36 32.65 38.40 49.45 50.70 52.35 53.55 46.40 40.39 23.53 30.97 38.00
1994 30.23 27.89 33.55 42.10 47.26 49.67 56.10 54.52 50.27 39.58 30.57 27.77 40.79
1995 26.58 32.54 31.97 37.70 46.35 51.53 55.48 51.74 51.20 39.03 35.40 28.90 40.70
1996 23.71 23.28 32.35 40.53 42.23 48.93 56.32 53.74 46.20 39.77 29.57 23.61 38.35
1997 26.00 30.96 35.16 37.03 47.42 50.27 55.58 58.42 51.30 39.90 33.97 27.68 41.14
1998 28.13 33.11 34.65 36.73 46.42 51.67 60.94 57.26 52.83 38.29 37.80 25.00 41.90
1999 30.58 32.18 33.52 35.17 40.39 49.33 53.45 58.32 46.10 39.03 37.07 32.42 40.63
2000 27.52 30.79 32.74 40.60 45.68 50.67 53.94 54.06 48.60 40.06 27.33 25.61 39.80
2001 27.84 27.64 32.77 37.50 43.74 48.70 55.42 56.48 49.30 40.55 34.97 29.00 40.33
2002 30.06 28.50 29.94 38.03 43.58 52.57 57.61 54.87 48.00 35.74 31.83 32.84 40.30
2003 33.32 29.61 38.13 39.80 ----- z 52.03 56.84 56.38 e 50.93 44.29 28.53 28.58 41.68
2004 23.35 29.38 36.10 38.67 46.29 51.83 57.97 58.68 48.73 43.29 31.20 29.45 41.25
2005 24.97 25.21 34.65 39.83 48.16 50.00 56.58 54.13 46.37 43.55 31.50 22.13 39.76
2006 32.26 ----- z 32.03 38.50 45.52 52.00 57.65 54.16 48.67 39.39 32.87 25.42 41.68
2007 23.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 23.00
Period of Record Statistics
MEAN 25.76 28.68 33.28 38.00 44.50 50.58 55.15 54.83 48.13 39.45 31.84 26.25 39.60
S.D. 5.39 3.98 2.08 2.29 2.26 1.85 2.11 2.27 2.07 2.40 4.49 4.30 1.43
SKEW -1.27 -1.28 0.29 -0.62 0.09 0.05 0.59 -0.13 0.19 0.56 -1.49 -0.77 -0.96
MAX 33.32 34.34 38.13 42.10 49.45 54.57 60.94 58.68 52.83 45.48 37.80 32.84 41.90
MIN 7.16 16.00 29.42 32.40 40.39 46.33 51.94 49.35 44.23 35.23 16.23 16.10 35.10
NO YRS 33 31 33 32 32 33 33 33 33 33 33 33 29