RALSTON RSVR, COLORADO

Period of Record General Climate Summary - Precipitation

Station:(056816) RALSTON RESERVOIR
From Year=1978 To Year=2012
Precipitation Total Snowfall
Mean High Year Low Year 1 Day Max. >=
0.01 in.		 >=
0.10 in.		 >=
0.50 in.		 >=
1.00 in.		 Mean High Year
in. in. - in. - in. dd/yyyy
or
yyyymmdd		 # Days # Days # Days # Days in. in. -
January 0.61 1.89 2007 0.06 1983 0.82 06/1998 4 2 0 0 8.5 23.1 2007
February 0.75 2.78 2012 0.00 1992 1.84 03/2012 4 2 0 0 8.9 25.0 2012
March 1.76 5.52 1992 0.00 2012 2.52 07/1990 7 4 1 0 12.8 45.5 2003
April 2.44 5.67 1999 0.02 2002 2.00 18/2009 8 5 2 0 9.6 24.8 1998
May 2.89 6.55 1995 0.47 2006 2.80 17/1995 9 6 2 0 1.6 15.5 1978
June 1.90 5.17 1987 0.18 2012 2.21 30/1987 8 4 1 0 0.0 0.0 1978
July 1.65 4.47 2000 0.10 2008 3.72 17/2000 8 5 1 0 0.0 0.0 1978
August 2.02 4.88 1999 0.15 1985 2.13 05/1999 8 5 1 0 0.0 0.0 1978
September 1.33 3.75 1996 0.05 2010 1.33 15/2011 7 4 1 0 0.7 5.0 1995
October 1.27 3.79 1984 0.18 1988 1.45 10/2005 5 3 1 0 3.7 29.0 2009
November 1.04 3.32 1983 0.00 1984 1.04 01/1986 5 3 1 0 10.6 44.0 1983
December 0.82 3.08 2006 0.00 2002 1.52 21/2006 4 2 0 0 11.6 39.0 2006
Annual 18.49 26.42 1999 11.85 2002 3.72 20000717 77 46 10 3 68.0 115.0 1979
Winter 2.17 5.62 2007 0.71 1992 1.84 20120203 13 7 1 0 29.0 75.1 2007
Spring 7.10 12.69 1983 2.45 2006 2.80 19950517 24 16 4 1 24.0 53.5 2003
Summer 5.57 10.86 1999 2.34 2012 3.72 20000717 24 14 3 1 0.0 0.0 1978
Fall 3.65 5.83 2004 0.80 2003 1.45 20051010 17 10 2 0 14.9 44.0 1983
Table updated on Oct 31, 2012
For monthly and annual means, thresholds, and sums:
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered
Seasons are climatological not calendar seasons
Winter = Dec., Jan., and Feb. Spring = Mar., Apr., and May
Summer = Jun., Jul., and Aug. Fall = Sep., Oct., and Nov. 






Western Regional Climate Center, wrcc@dri.edu