SEATTLE SAND PT WSFO, WASHINGTON

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(457470)

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200601
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
1986 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 43.00 33.00 31.00 a 31.00
1987 26.00 31.00 34.00 37.00 43.00 47.00 51.00 51.00 46.00 41.00 33.00 27.00 26.00
1988 27.00 25.00 32.00 37.00 40.00 45.00 50.00 52.00 46.00 38.00 35.00 27.00 25.00
1989 28.00 ----- z ----- z 38.00 42.00 46.00 50.00 52.00 45.00 35.00 33.00 30.00 28.00
1990 29.00 21.00 29.00 38.00 38.00 47.00 ----- z 51.00 47.00 38.00 33.00 10.00 10.00
1991 24.00 33.00 31.00 ----- z 42.00 42.00 51.00 50.00 46.00 29.00 32.00 27.00 24.00
1992 28.00 33.00 34.00 35.00 41.00 49.00 53.00 50.00 43.00 36.00 30.00 25.00 25.00
1993 21.00 20.00 34.00 38.00 44.00 49.00 52.00 50.00 45.00 43.00 20.00 28.00 20.00
1994 30.00 21.00 33.00 38.00 40.00 46.00 51.00 54.00 49.00 40.00 28.00 23.00 21.00
1995 27.00 27.00 29.00 36.00 43.00 47.00 51.00 49.00 46.00 33.00 33.00 25.00 25.00
1996 18.00 23.00 28.00 34.00 38.00 46.00 49.00 51.00 45.00 35.00 ----- z 26.00 18.00
1997 23.00 25.00 33.00 33.00 40.00 47.00 50.00 55.00 48.00 ----- z 34.00 29.00 23.00
1998 23.00 35.00 30.00 36.00 40.00 50.00 ----- z ----- z ----- z ----- z ----- z 19.00 19.00
1999 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 52.00 44.00 39.00 35.00 32.00 32.00
2000 28.00 29.00 31.00 35.00 39.00 46.00 51.00 47.00 42.00 39.00 28.00 28.00 28.00
2001 29.00 24.00 30.00 34.00 39.00 43.00 50.00 50.00 44.00 35.00 35.00 29.00 24.00
2002 29.00 28.00 28.00 35.00 35.00 43.00 48.00 50.00 44.00 32.00 27.00 30.00 27.00
2003 32.00 28.00 34.00 35.00 39.00 46.00 50.00 49.00 47.00 33.00 28.00 26.00 26.00
2004 21.00 a 29.00 33.00 36.00 43.00 46.00 52.00 56.00 48.00 38.00 32.00 33.00 21.00
2005 26.00 27.00 36.00 35.00 46.00 48.00 52.00 53.00 ----- z 37.00 29.00 24.00 24.00
2006 34.00 ----- z ----- z 36.00 40.00 48.00 c 53.00 j ----- z ----- z ----- z ----- z ----- z 34.00
Period of Record Statistics
MEAN 26.47 27.00 31.71 35.89 40.63 46.37 50.69 51.22 45.59 36.89 31.00 26.45 24.36
S.D. 4.01 4.44 2.42 1.53 2.54 2.09 1.25 2.24 1.87 3.77 3.82 5.06 2.62
SKEW -0.30 0.11 -0.08 -0.01 0.03 -0.43 -0.22 0.46 -0.02 -0.19 -1.33 -1.77 -0.49
MAX 34.00 35.00 36.00 38.00 46.00 50.00 53.00 56.00 49.00 43.00 35.00 33.00 28.00
MIN 18.00 20.00 28.00 33.00 35.00 42.00 48.00 47.00 42.00 29.00 20.00 10.00 20.00
NO YRS 19 17 17 18 19 19 16 18 17 18 18 20 11