RALSTON RESERVOIR, CO

Total of Snowfall (Inches)

(056816)

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
1977-78-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z15.50 0.00 15.50j
1978-790.00 0.00 0.00 4.50 7.00 18.00 17.00 5.00 14.50c13.50 7.00 0.00 86.50
1979-800.00 0.00 0.00 3.00 29.50 25.50 11.00 11.00 14.60 15.00 0.00 0.00 109.60
1980-810.00 0.00 0.00 1.00 6.90 1.00 2.00 9.40 19.00 2.00 0.00 0.00 41.30
1981-820.00 0.00 0.00 3.50 4.50 9.30 5.00a7.50 4.00 1.00 0.00 0.00 34.80
1982-830.00 0.00 0.00 0.50a3.50 28.70 0.00 2.00 23.70 15.90 2.00b0.00 76.30
1983-840.00 0.00 0.00 0.00 30.00a12.70 2.40 18.00 11.50 23.00 0.00 0.00 97.60
1984-850.00 0.00 3.50 11.50 0.00 5.00 12.80 13.00 12.50 2.50 0.00 0.00 60.80
1985-860.00 0.00 4.50 1.50 20.30 10.00 -----z9.50 6.50 17.00 0.00 0.00 69.30a
1986-870.00 0.00 0.00 1.00 11.90 11.50 20.00 19.60 17.00 15.50 0.00 0.00 96.50
1987-880.00 0.00 0.00 0.00 6.50 32.50 5.60 13.50 16.00 1.00 3.50 0.00 78.60
1988-890.00 0.00 0.00 0.00 2.50 22.00 18.00 9.60 5.00 9.50 1.00 0.00 67.60
1989-900.00 0.00 2.00 6.50 3.50 18.00 5.50 7.00 37.50 2.50 0.00 0.00 82.50
1990-910.00 0.00 0.00 4.50 15.00 3.00 13.50 2.00 2.50 20.50 3.00 0.00 64.00
1991-920.00 0.00 0.00 7.50 32.00 0.00 9.50 0.00 23.50 0.00 0.00 0.00 72.50
1992-930.00 0.00 0.00 0.00 29.50 9.00 2.30 4.30a4.00 7.00 0.00 0.00 56.10
1993-940.00 0.00 0.00 5.00 15.00 6.00 3.00 9.00a11.50 19.00 0.00 0.00 68.50
1994-950.00 0.00 2.00 0.00 13.00 5.00 8.00a8.00 10.00 18.50 0.00 0.00 64.50
1995-960.00 0.00 5.00 2.00 10.00 2.00 16.00 2.50 12.00 4.50 0.00 0.00 54.00
1996-970.00 0.00 4.00 0.00 8.00 3.00 9.00 16.00 7.60a22.00 0.00 0.00 69.60
1997-980.00 0.00 0.00 18.00 10.00 8.00 0.00a1.00 27.00 24.80 0.00 0.00b88.80
1998-990.00b0.00 0.00 0.00 -----z10.00a9.00 2.00 4.00 18.00 0.00 0.00 43.00a
1999-000.00 0.00 2.00a5.00 5.00 9.00 4.00 3.00 12.00 2.50 0.00b0.00b42.50
2000-010.00a0.00d5.00h0.00e4.50 4.50 9.00 10.00a7.30 6.80 7.00 0.00 49.10a
2001-020.00 0.00a0.00a0.00 5.00a3.00 11.00 4.00 8.50 0.00 1.50 0.00 33.00
2002-030.00 0.00 0.00 3.00 6.00 0.00 0.00 16.60a45.50 6.00 2.00 0.00 79.10
2003-040.00 0.00 0.00 0.00 3.10 6.00 8.00 16.00 5.00 9.00 6.00 0.00 53.10
2004-050.00 0.00 0.00 0.00 17.00 7.00 14.00 1.00 7.00 11.00 1.00 0.00 58.00
2005-060.00 0.00 0.00 0.00 3.50 2.00 5.50 8.00a9.50 1.00 0.00 0.00 29.50
2006-070.00 0.00 0.00 11.00 8.00 39.00 22.60b13.00 7.50 1.50 0.00 0.00 102.60
2007-080.00 0.00i0.00 1.00 5.00 25.30 4.00 7.00 10.00 4.00 2.00a0.00 58.30a
2008-090.00 0.00 0.00 0.00 3.50 15.00 8.00 3.00 16.50 23.00b0.00 0.00 69.00
2009-100.00 0.00 0.00 29.00 8.00 16.00 3.00a11.20a22.00 4.00a3.00a0.00 96.20
2010-110.00 0.00 0.00 0.00 1.00 6.00 7.00 11.00a1.00 3.00 0.00 0.00 29.00
2011-120.00 0.00 0.00 6.00 6.50 20.50 5.00 25.00 0.00 2.00 0.00 0.00 65.00
2012-130.00 0.00 0.00 4.00 0.00 9.00 4.20 17.40 25.00 25.00 2.00 0.00 86.60
2013-140.00 0.00 0.00 2.00 2.00 5.00 18.00 7.00 6.00 7.00 5.00 0.00 52.00
2014-150.00 0.00 0.00 0.00 7.00 10.00 6.00 33.00 1.00 6.00 3.00 0.00 66.00
2015-160.00 0.00 0.00 0.00 11.00 17.50 4.60 16.00a27.50 22.50 1.00 0.00 100.10
2016-170.00 0.00 0.00 0.00 5.00 12.00 12.50 5.50 0.00 15.00 2.20 0.00 52.20
2017-180.00 0.00 0.00 7.00 0.00 5.00a7.00 13.60 10.50 4.50 0.00 0.00 47.60
2018-190.00 0.00 0.00 5.30 4.50 5.00 18.00 10.00 9.00 5.00 3.70 0.00 60.50
2019-200.00 0.00 0.00 16.40b20.50 3.10 1.00 26.00 6.00 11.30 0.00 0.00 84.30
2020-210.00 0.00 5.00 3.50 6.50 5.00 2.00 12.00 23.00 6.50 0.00 0.00 63.50
2021-220.00 0.00 0.00 0.00 3.20 0.00 19.50 23.50 8.80 0.00 8.80 0.00 63.80
2022-230.00 0.00 0.00 0.00 19.70 16.50 7.00 10.40 6.00 4.00 0.00 0.00 63.60
2023-240.00 0.00 0.00 7.00 4.50 9.20 10.00 13.90 22.20c-----z-----z-----z66.80c
Period of Record Statistics
MEAN0.00 0.00 0.62 3.70 9.30 10.67 8.46 10.59 12.62 9.63 1.74 0.00 67.50
S.D.0.00 0.00 1.45 5.74 8.42 9.01 6.01 7.26 9.76 7.99 3.04 0.00 20.52
SKEW0.00 0.00 2.15 2.52 1.38 1.23 0.62 0.88 1.26 0.54 2.59 0.00 0.05
MAX0.00 0.00 5.00 29.00 32.00 39.00 22.60 33.00 45.50 25.00 15.50 0.00 109.60
MIN0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 29.00
YRS46 45 45 46 45 46 45 46 46 45 46 46 41