WALLA WALLA FAA AIRPORT, WASHINGTON

Monthly Total Snowfall (Inches)

(458928)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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) JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN ANN
1948-49 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1949-50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2.10 22.60 2.90 0.00 1.00 0.00 0.00 28.60
1950-51 0.00 0.00 0.00 0.00 0.00 5.00 2.00 3.80 7.00 a 0.00 0.00 0.00 17.80
1951-52 0.00 0.00 0.00 0.00 0.00 9.90 6.10 2.00 2.00 0.00 0.00 0.00 20.00
1952-53 0.00 0.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 0.00 0.00 0.00 3.00
1953-54 0.00 0.00 0.00 0.00 0.00 0.00 8.00 0.00 2.00 0.00 0.00 0.00 10.00
1954-55 0.00 0.00 0.00 0.00 0.00 0.00 6.00 4.10 0.00 0.00 0.00 0.00 10.10
1955-56 0.00 0.00 0.00 0.00 12.10 10.00 12.00 10.00 0.00 0.00 0.00 0.00 44.10
1956-57 0.00 0.00 0.00 0.00 4.00 0.00 16.10 5.30 0.10 0.00 0.00 0.00 25.50
1957-58 0.00 0.00 0.00 0.00 0.00 0.00 2.00 0.00 2.10 0.00 0.00 0.00 4.10
1958-59 0.00 0.00 0.00 0.00 0.60 2.00 8.30 9.60 0.00 0.50 0.00 0.00 21.00
1959-60 0.00 0.00 a 0.00 0.00 2.00 6.00 14.00 0.00 2.40 0.00 0.00 0.00 24.40
1960-61 0.00 0.00 0.00 0.00 0.00 1.00 0.40 0.00 0.00 0.00 0.00 0.00 1.40
1961-62 0.00 0.00 0.00 0.00 6.00 10.00 2.10 3.20 0.80 0.00 0.00 0.00 22.10
1962-63 0.00 0.00 0.00 0.00 0.00 0.00 5.00 1.00 0.00 0.00 0.00 0.00 6.00
1963-64 0.00 0.00 0.00 0.00 0.00 1.00 0.00 0.00 0.10 0.00 0.00 0.00 1.10
1964-65 0.00 0.00 0.00 0.00 0.00 10.90 7.30 0.00 0.10 0.00 0.00 0.00 18.30
1965-66 0.00 0.00 0.00 0.00 0.00 0.60 4.80 0.40 4.00 0.00 0.00 0.00 9.80
1966-67 0.00 0.00 0.00 0.00 0.00 0.10 1.00 0.00 a 2.00 0.00 0.00 0.00 3.10
1967-68 0.00 0.00 0.00 0.00 1.00 3.00 0.00 0.00 0.00 0.00 0.00 0.00 4.00
1968-69 0.00 0.00 0.00 0.00 0.50 16.50 29.30 3.00 0.00 0.00 0.00 0.00 49.30
1969-70 0.00 0.00 0.00 0.00 0.00 5.30 6.90 1.00 3.30 0.00 0.00 0.00 16.50
1970-71 0.00 0.00 0.00 0.00 1.40 3.50 6.80 0.10 3.40 0.00 0.00 0.00 15.20
1971-72 0.00 0.00 0.00 2.00 0.00 7.00 5.00 6.20 0.00 0.00 0.00 0.00 20.20
1972-73 0.00 0.00 0.00 0.00 0.00 5.60 5.00 7.00 0.00 0.00 0.00 0.00 17.60
1973-74 0.00 0.00 0.00 2.40 5.00 10.00 2.20 0.00 0.00 0.00 0.00 0.00 19.60
1974-75 0.00 0.00 0.00 0.00 0.00 0.00 12.70 7.70 0.00 0.00 0.00 0.00 20.40
1975-76 0.00 0.00 0.00 0.00 1.70 5.90 0.00 0.00 0.50 0.00 0.00 0.00 8.10
1976-77 0.00 0.00 0.00 0.00 0.00 0.90 7.90 0.00 0.00 0.00 0.00 0.00 8.80
1977-78 0.00 0.00 0.00 0.00 9.80 10.10 6.90 0.00 1.40 0.00 0.00 0.00 28.20
1978-79 0.00 0.00 0.00 0.00 8.40 11.30 20.60 3.80 0.00 0.00 0.00 0.00 44.10
1979-80 0.00 0.00 0.00 0.00 5.40 1.00 14.00 5.00 2.00 0.00 0.00 0.00 27.40
1980-81 0.00 0.00 0.00 0.00 1.50 1.60 0.00 1.90 0.00 0.00 0.00 0.00 5.00
1981-82 0.00 0.00 0.00 0.00 0.20 10.70 10.60 0.60 6.80 0.00 0.00 0.00 28.90
1982-83 0.00 0.00 0.00 0.00 0.00 4.10 0.00 0.00 0.00 0.00 0.00 0.00 4.10
1983-84 0.00 0.00 0.00 0.00 0.60 23.40 1.80 0.00 0.10 0.00 0.00 0.00 25.90
1984-85 0.00 0.00 0.00 0.00 0.80 11.90 4.90 12.00 0.00 0.00 0.00 0.00 29.60
1985-86 0.00 0.00 0.00 0.00 20.90 8.00 1.00 7.60 0.00 0.00 0.00 0.00 37.50
1986-87 0.00 0.00 0.00 0.00 0.00 2.40 4.80 0.00 0.00 0.00 0.00 0.00 7.20
1987-88 0.00 0.00 0.00 0.00 1.00 3.80 10.50 0.00 0.00 0.00 0.00 0.00 15.30
1988-89 0.00 0.00 0.00 0.00 0.00 0.20 5.90 5.00 6.30 0.00 0.00 0.00 17.40
1989-90 0.00 0.00 0.00 0.00 0.00 0.90 0.00 7.70 3.50 0.00 0.00 0.00 12.10
1990-91 0.00 0.00 0.00 0.00 0.00 13.80 3.20 0.00 1.50 0.00 0.00 0.00 18.50
1991-92 0.00 0.00 0.00 2.10 0.30 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.40
1992-93 0.00 0.00 0.00 0.00 1.50 8.00 14.40 10.80 1.00 0.00 0.00 0.00 35.70
1993-94 0.00 0.00 0.00 0.00 0.30 1.20 0.00 13.30 0.10 0.00 0.00 0.00 14.90
1994-95 0.00 0.00 0.00 0.00 0.00 2.80 1.10 8.40 f 0.00 z 0.00 z 0.00 z 0.00 z 3.90
1995-96 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1996-97 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1997-98 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1998-99 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 0.00 0.00
1999-00 0.00 0.00 0.00 0.00 0.00 0.00 7.20 0.00 b 0.00 0.00 0.00 0.00 7.20
2000-01 0.00 0.00 0.00 0.00 0.00 2.00 1.10 0.00 0.00 0.00 0.00 0.00 3.10
2001-02 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2002-03 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2003-04 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2004-05 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2005-06 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2006-07 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2007-08 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2008-09 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2009-10 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2010-11 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.70 1.90 0.00 0.00 i 0.00 i 0.00 a 2.60
2011-12 0.00 0.00 0.00 0.00 a 0.00 g 0.00 d 0.00 h 0.00 k 0.10 f 0.00 d 0.00 b 0.00 0.00
2012-13 0.00 0.00 0.00 0.00 t 0.00 z 1.00 z 0.00 y 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
Period of Record Statistics
MEAN 0.00 0.00 0.00 0.14 1.81 4.83 6.17 2.85 1.09 0.03 0.00 0.00 17.09
S.D. 0.00 0.00 0.00 0.53 3.95 5.20 6.53 3.77 1.85 0.16 0.00 0.00 12.19
SKEW 0.00 0.00 0.00 3.66 3.14 1.31 1.48 1.21 1.92 5.37 0.00 0.00 0.77
MAX 0.00 0.00 0.00 2.40 20.90 23.40 29.30 13.30 7.00 1.00 0.00 0.00 49.30
MIN 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.10
NO YRS 49 49 49 48 47 49 49 48 48 49 49 50 46