SILVERTON, OR

Total of Snowfall (Inches)

(357823)

File last updated on April 18, 2024
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)JULAUGSEPOCTNOVDECJANFEBMARAPRMAYJUNANN
1962-63-----z-----z0.00 0.00 0.00 0.00 5.00 0.00 0.00 0.00 0.00 0.00 5.00b
1963-640.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1964-650.00 0.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 0.00 0.00 0.00 3.00
1965-660.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1966-670.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1967-680.00 0.00 0.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 0.00 0.00 2.00
1968-690.00 0.00 0.00 0.00 0.00 8.50 14.00 0.00 0.00 0.00 0.00 0.00 22.50
1969-700.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1970-710.00 0.00 0.00 0.00 0.00 0.00 14.00 3.00 0.00 0.00 0.00 0.00 17.00
1971-720.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1972-730.00 0.00 0.00 0.00 0.00 10.00 1.00 0.00 0.00 0.00 0.00 0.00 11.00
1973-740.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -----z0.00 0.00 0.00 0.00a
1974-750.00 0.00 0.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 0.00 0.00 4.00
1975-760.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1976-770.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1977-780.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 6.00
1978-790.00 0.00 0.00 0.00 2.00 2.00 0.50 0.00 0.00 0.00 0.00 0.00 4.50
1979-800.00 0.00 0.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 0.00 0.00 2.00
1980-810.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1981-820.00 0.00 0.00 0.00 0.00 0.40 4.30a0.00 0.00 0.00 0.00 0.00 4.70
1982-830.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.50 0.00a0.00 0.50
1983-840.00 0.00 0.00 0.00 0.00 0.00c0.00 0.00 0.00 0.00 0.00 0.00 0.00
1984-850.00 0.00 0.00 0.00 0.00 1.00 0.00 -----z0.00 0.00 0.00 0.00 1.00a
1985-860.00 0.00 0.00 0.00 -----z5.80 0.00 3.00 0.00 0.00 0.00 0.00 8.80a
1986-870.00 0.00 0.00 0.00 0.00 0.00 0.00 -----z0.00 0.00 0.00 0.00 0.00a
1987-880.00a0.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 0.00 0.00 0.00 4.00
1988-890.00 0.00 0.00 0.00 0.00 0.70 0.00 11.00a0.00a0.00 0.00 0.00 11.70
1989-900.00 0.00 0.00 0.00 0.00 0.00 0.00 3.30 -----z0.00 0.00 0.00 3.30a
1990-910.00 0.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 0.00 0.00 0.00 4.00
1991-920.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1992-930.00 0.00 0.00 0.00 0.00 7.50a-----z12.30 0.00 0.00 0.00 0.00 19.80a
1993-940.00 0.00 0.00 0.00 0.60 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.60
1994-950.00 0.00 0.00 0.00 0.00 2.80a0.00 3.50 0.00 0.00 0.00 0.00 6.30
1995-960.00 0.00 0.00 0.00 0.00 0.00 0.30 0.00b0.00 0.00 0.00 0.00 0.30
1996-970.00 0.00 0.00 0.00b0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1997-980.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00a0.00 0.00 0.00 0.00
1998-990.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00b0.00 0.00 0.00 0.00 0.00
1999-000.00 0.00 0.00 0.00 0.00 0.00 1.50 0.00 0.00 0.00 0.00 0.00 1.50
2000-010.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00a0.00
2001-020.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2002-030.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2003-040.00 0.00a0.00 0.00 0.00 0.00a0.00c0.00 0.00 0.00 0.00 0.00 0.00
2004-050.00 0.00 0.00 0.00 0.00 0.00 0.00a0.00 0.00 0.00 0.00 0.00 0.00
2005-060.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -----z0.00 0.00a
2006-070.00 0.00 0.00 0.00 0.40 0.00 0.00a0.00 0.00 0.00 0.00 0.00 0.40
2007-080.00 0.00 0.00 0.00 0.00a0.00 0.00b0.00 0.00 0.00 0.00 0.00 0.00
2008-090.00a0.00 0.00 0.00 0.00 10.00a0.00 0.50 0.00 0.00 0.00 0.00 10.50
2009-100.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2010-110.00 0.00 0.00 0.00 0.00a0.00 -----z-----z-----z-----z-----z-----z0.00f
2011-12-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00l
2012-13-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00 0.00k
2013-140.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00f0.00 0.00 0.00 0.00 0.00a
2014-150.00 0.00 0.00 0.00 0.00a0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2015-160.00 0.00 0.00 0.00 0.00 0.00 0.80 0.00 0.00 0.00 0.00 0.00 0.80
2016-170.00 0.00 0.00 0.00 0.00 4.00 -----z0.00 0.00j0.00 0.00 0.00 4.00b
2017-180.00 0.00 0.00 0.00 0.00 0.00f0.00 1.50 0.00 0.00 0.00 0.00 1.50a
2018-190.00 0.00 0.00 0.00 0.00 0.00 0.00 2.30a0.00 0.00 0.00 0.00 2.30
2019-200.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2020-210.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00d0.00 0.00 0.00 0.00 0.00
2021-220.00 0.00 0.00 0.00 0.00 0.70 0.00 0.00 0.00 0.00 0.00 0.00 0.70
2022-230.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2023-240.00 0.00 0.00 0.00 0.00 0.00 0.00d0.00 0.00 -----z-----z-----z0.00c
Period of Record Statistics
MEAN0.00 0.00 0.00 0.00 0.15 1.09 0.87 0.72 0.00 0.01 0.00 0.00 2.56
S.D.0.00 0.00 0.00 0.00 0.82 2.50 2.74 2.30 0.00 0.07 0.00 0.00 4.77
SKEW0.00 0.00 0.00 0.00 6.47 2.46 4.06 4.03 0.00 7.42 0.00 0.00 2.52
MAX0.00 0.00 0.00 0.00 6.00 10.00 14.00 12.30 0.00 0.50 0.00 0.00 22.50
MIN0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
YRS59 59 60 60 59 59 57 56 56 58 57 59 47