ROSS DAM, WA

Total of Snowfall (Inches)

(457185)

File last updated on March 28, 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
1960-61-----z-----z0.00 0.00 4.50 1.00 0.00d0.00h0.00j0.00 0.00 0.00 5.50d
1961-620.00 0.00 0.00 0.00 0.00l26.50a0.00o0.00 11.50 0.00b0.00 0.00 38.00b
1962-630.00 0.00 0.00 0.00 0.00 0.00a6.80 2.00 0.00 0.00 0.00 0.00 8.80
1963-640.00 0.00 0.00 0.00 1.00 0.00 42.00 5.00 7.80 0.00 0.00 0.00 55.80
1964-650.00 0.00 0.00 0.00 -----z-----z-----z-----z-----z-----z-----z-----z0.00h
1965-66-----z-----z-----z-----z-----z-----z-----z9.50 -----z-----z-----z-----z9.50k
1966-67-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00l
1967-68-----z0.00 -----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00k
1968-69-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00 -----z0.00k
1969-70-----z-----z-----z-----z-----z-----z-----z1.00 0.00 0.00 0.00 0.00 1.00g
1970-710.00 0.00 0.00 0.00 -----z31.00e1.00g9.00 18.70 0.00 0.00 0.00 58.70b
1971-720.00 0.00 0.00 0.00 2.00 33.50j55.00 5.50g-----z0.00 0.00 0.00 57.00c
1972-730.00 0.00 0.00 0.00 0.00 -----z-----z-----z0.00 0.00 0.00 0.00 0.00c
1973-740.00 0.00 0.00 0.00 45.50 -----z17.50 -----z-----z0.00 0.00 0.00 63.00c
1974-750.00 0.00 0.00 0.00 -----z14.30b-----z-----z3.00 7.00 0.00 0.00 24.30c
1975-760.00 0.00 0.00 0.00 8.70 12.50 30.60 -----z-----z0.00 0.00 0.00 51.80b
1976-770.00 0.00 0.00 0.00 0.00 0.00 12.50 0.50 1.00 0.00 0.00 0.00 14.00
1977-780.00 0.00 0.00 0.00 -----z-----z20.50 14.00 0.00 0.00 0.00 0.00 34.50b
1978-790.00 0.00 0.00 0.00 1.30 -----z-----z-----z0.00 0.00 0.00 0.00 1.30c
1979-800.00 0.00 0.00 0.00 0.00a-----z-----z10.00 5.50a0.00 0.00 0.00 15.50b
1980-810.00 0.00 0.00 0.00 0.00 0.60h0.00 10.00 0.00 0.00 0.00 0.00 10.00a
1981-820.00 0.00 0.00 0.00 0.00 -----z13.00h22.30a0.00b0.00 0.00 0.00 22.30b
1982-830.00 0.00 0.00 0.00 0.00a0.00 24.50 3.00d0.00 0.00 0.00 0.00 27.50
1983-840.00 0.00 0.00 0.00 0.00 11.00h0.00b0.00 0.00 -----z0.00 0.00 0.00b
1984-850.00 0.00 0.00 2.60 3.00d-----z0.00a26.00a8.00 0.00 0.00 0.00 39.60a
1985-860.00 0.00 0.00 0.00 14.70 5.00 0.90 6.00e0.00 0.00 0.00 0.00 26.60
1986-870.00 0.00 0.00 0.00 0.00 1.00 8.00 0.00 8.00 0.00 0.00 0.00 17.00
1987-880.00a0.00 0.00 0.00 0.00 11.00a7.50a11.00 0.00 0.00a0.00 0.00 29.50
1988-890.00 0.00 0.00 0.00 4.00 1.50 23.00a8.00a4.10a0.00a0.00 0.00 40.60
1989-900.00 0.00 0.00 0.00 0.00 0.00 28.00 46.50 6.50 0.00 0.00 0.00 81.00
1990-910.00 0.00 0.00 0.00 1.00d51.50 29.50 0.00 16.50b0.00 0.00 0.00 98.50
1991-920.00 0.00 0.00 0.00 0.00 0.00 0.00b0.00a0.00 0.00 0.00 0.00 0.00
1992-930.00 0.00 0.00 0.00 1.00 22.00a25.00 -----z3.10 0.00 0.00 0.00 51.10a
1993-940.00 0.00 0.00 0.00 0.00b0.00a0.00 28.00 3.00a0.00 0.00 0.00 31.00
1994-950.00 0.00 0.00 0.00 11.00 25.00 1.00 30.00 4.00 0.00 0.00 0.00 71.00
1995-960.00 0.00 0.00 0.00 1.00 7.00a23.00 18.00 2.00 0.00 0.00 0.00 51.00
1996-970.00 0.00 0.00 0.00 11.00 72.00 19.00 2.00 6.00a0.00 0.00 0.00 110.00
1997-980.00 0.00 0.00 0.00 0.00a7.00 30.00 0.00d0.00b0.00 0.00 0.00 37.00
1998-990.00 0.00 0.00 0.00 0.00 22.50a7.00 10.50b2.00b0.00 0.00a0.00 42.00
1999-000.00 0.00 0.00 0.00 0.00 12.50b44.00 8.00 0.00b0.00 0.00 0.00 64.50
2000-010.00 0.00 0.00 0.00 3.00 16.00 2.00 6.00 0.00 0.00 0.00 0.00 27.00
2001-020.00 0.00 0.00 0.00 4.00 13.30a27.00 6.30a40.10 0.30 0.00 0.00 91.00
2002-030.00 0.00 0.00 0.00 0.00 10.00 0.00 0.00 20.00 0.00 0.00 0.00 30.00
2003-040.00 0.00 0.00 0.00 22.00 24.00 15.50 1.00 6.00 0.00 0.00 0.00 68.50
2004-050.00 0.00 0.00 0.00 1.00 1.50 13.00 1.50 0.00 0.00 0.00 0.00 17.00
2005-060.00 0.00 0.00 0.00 6.00 5.30 3.00a9.30 8.50 0.00 0.00 0.00 32.10
2006-070.00 0.00 0.00 0.00 24.60 5.20 8.00 2.00 0.50 0.00 0.00 0.00 40.30
2007-080.00 0.00 0.00 0.00 5.00 57.30 51.30 25.30 8.50 1.00 0.00 0.00 148.40
2008-090.00 0.00 0.00 0.00 0.00 63.40 43.80 1.20 17.80 3.90 0.00n0.00p130.10b
2009-100.00 0.00 0.00 0.00 3.00 9.00 0.00 0.00 3.00 0.00 0.00 0.00 15.00
2010-110.00 0.00 0.00 0.00 17.30 14.50 12.70 26.60k16.00h3.30t-----z-----z44.50e
2011-120.00y-----z-----z-----z11.80p1.50l32.40i5.00 19.40d-----z-----z-----z24.40j
2012-13-----z0.00x-----z-----z0.50x23.20f11.00 1.70h3.00 -----z-----z-----z14.00j
2013-14-----z-----z-----z-----z0.00t5.30l-----z38.70h17.20e-----z0.00m0.00f17.20k
2014-150.00i0.00p0.00j0.00l2.60h2.10n7.50j-----z-----z-----z0.00u0.00u0.00l
2015-16-----z-----z-----z0.00y3.00a21.50i1.20c1.50o0.00q0.00t-----z-----z4.20j
2016-170.00p-----z0.00u-----z0.00 45.40 8.50 47.10 29.10c-----z-----z0.00q130.10g
2017-180.00j0.00q0.00a0.00p0.00o25.50a0.50c26.00a1.60a2.00h0.00c0.00g53.60f
2018-190.00g0.00p0.00h0.00s0.00g9.00a7.00 33.20 1.20f0.00l0.00g0.00v49.20i
2019-200.00i0.00 0.00a0.00j1.00i14.50b36.00a9.00 3.00i0.00r0.00t0.00r59.50g
2020-210.00n0.00p0.00g0.00e4.10d7.80b0.00 10.80 1.50 0.00e0.00g0.00o24.20e
2021-220.00s0.00q0.00l0.00m0.00r44.70 34.80d6.80a3.50a0.00l0.00n0.00n89.80h
2022-230.00m0.00r0.00q0.00o12.00g35.30d0.00g14.40h10.20e1.00j0.00j0.00b45.50i
2023-240.00k0.00o0.00 0.00h0.00k7.80 23.20 13.00 5.60l-----z-----z-----z44.00h
Period of Record Statistics
MEAN0.00 0.00 0.00 0.06 4.61 17.04 16.04 10.52 6.13 0.27 0.00 0.00 47.23
S.D.0.00 0.00 0.00 0.38 8.67 18.59 15.52 12.02 8.47 1.19 0.00 0.00 34.80
SKEW0.00 0.00 0.00 6.63 3.00 1.37 0.77 1.50 2.01 4.84 0.00 0.00 1.15
MAX0.00 0.00 0.00 2.60 45.50 72.00 55.00 47.10 40.10 7.00 0.00 0.00 148.40
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
YRS45 47 49 47 44 43 47 46 49 45 46 45 27