SAINT HELENS RFD, OR

Total of Snowfall (Inches)

(357466)

File last updated on April 19, 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
1976-77-----z0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00a
1977-780.00 0.00 0.00 0.00 5.30 0.00 0.00 -----z0.00 0.00 0.00 0.00 5.30a
1978-790.00 0.00 0.00 0.00 3.90 3.10 3.00 0.00 0.00 0.00 0.00 0.00 10.00
1979-800.00 0.00 -----z-----z0.00 0.00 24.30 1.00 0.00 0.00 0.00 0.00 25.30b
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 0.00 0.00a0.00 0.00 0.00 0.00 0.00 0.00
1982-830.00 0.00 0.00 0.00 0.00 0.00 0.00g0.00 0.00 0.00 0.00 0.00 0.00a
1983-840.00 0.00 0.00 0.00 0.00 1.00c0.00 0.00 0.00 0.00 0.00 0.00 1.00
1984-850.00 0.00 0.00 0.00 0.00 1.00 0.00 7.30a0.00 0.00 0.00 0.00 8.30
1985-860.00 0.00 0.00 0.00 6.00 2.00 0.00 2.50 0.00 0.00 0.00 0.00 10.50
1986-870.00 0.00 -----z0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00a
1987-880.00 0.00 0.00 0.00 0.00 0.00 0.50 0.00 0.00 0.00 0.00 0.00 0.50
1988-890.00 0.00 0.00 0.00 0.00 -----z0.00 0.00a0.00a0.00 0.00 0.00 0.00a
1989-900.00 0.00 0.00 0.00 0.00 0.00 0.00a0.00e0.00 0.00 0.00 0.00 0.00
1990-910.00 0.00 0.00 0.00 0.00 0.00e0.00 0.00 0.00 0.00 0.00 0.00 0.00
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 5.50d-----z0.00d0.00 0.00 0.00 0.00 5.50a
1993-940.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1994-950.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00d0.00 0.00 0.00
1995-960.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1996-970.00 0.00 0.00 0.00 0.00 0.00b0.00b0.00 0.00 0.00 0.00 0.00 0.00
1997-980.00 0.00 0.00 0.00 0.00 0.00 0.00b0.00 0.00 0.00 0.00 0.00 0.00
1998-990.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00a0.00 0.00
1999-000.00 0.00 0.00 0.00 0.00 0.00 0.00a0.00 0.00 0.00 0.00 0.00a0.00
2000-010.00 0.00 0.00 0.00 0.00 0.00b0.00a0.00 0.00 0.00 0.00b0.00 0.00
2001-020.00 0.00 0.00 0.00 0.00 0.00 0.00a0.00a0.00 0.00 0.00 0.00 0.00
2002-030.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00a0.00d0.00 0.00 0.00 0.00
2003-040.00 0.00 0.00 0.00a0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2004-050.00 0.00 0.00 0.00 0.00 0.00 0.00m0.00 0.00a0.00 0.00a0.00a0.00a
2005-060.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00a0.00 0.00 -----z0.00 0.00a
2006-070.00a0.00 0.00 0.00a0.00a0.00 -----z0.50b0.00b0.00d0.00 0.00 0.50a
2007-080.00 0.00 0.00 0.00a0.00 -----z2.00d0.00b0.00 0.00 0.00 0.00a2.00a
2008-090.00 0.00 0.00 0.00 0.00a15.00 4.00 0.00a0.00a0.00 0.00a0.00 19.00
2009-100.00 -----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00 0.00j
2010-110.00 0.00 0.00 0.00 0.00 0.20 -----z5.70y-----z-----z-----z-----z0.20f
2011-12-----z-----z-----z-----z0.00w0.00y11.60w0.00y-----z-----z0.00y-----z0.00l
2012-13-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00w-----z0.00a0.00k
2013-140.00m0.00l0.00a0.00p0.00 0.00e0.00h2.40h0.00 0.00 0.00 0.00 0.00e
2014-150.00 0.00 0.00 0.00u0.00b0.00 0.00g0.00 0.00p0.00m-----z-----z0.00f
2015-16-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00l
Period of Record Statistics
MEAN0.00 0.00 0.00 0.00 0.42 0.82 1.17 0.34 0.00 0.00 0.00 0.00 2.24
S.D.0.00 0.00 0.00 0.00 1.44 2.74 4.55 1.33 0.00 0.00 0.00 0.00 5.03
SKEW0.00 0.00 0.00 0.00 3.17 4.41 4.77 4.63 0.00 0.00 0.00 0.00 2.21
MAX0.00 0.00 0.00 0.00 6.00 15.00 24.30 7.30 0.00 0.00 0.00 0.00 19.00
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
YRS35 35 34 33 36 34 29 33 34 34 33 36 22