ST HELENS RFD, OREGON

Period of Record General Climate Summary - Precipitation

Station:(357466) ST HELENS RFD
From Year=1976 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 6.27 15.03 2006 0.41 1985 2.30 09/1990 18 13 4 1 1.3 24.3 1980
February 4.82 10.87 1999 0.66 1993 2.00 23/1986 15 11 3 1 0.4 7.3 1985
March 4.71 10.28 1983 1.90 1992 2.75 01/1983 17 12 3 1 0.0 0.0 1977
April 3.40 7.49 1991 1.11 1977 1.85 04/1991 15 10 2 0 0.0 0.0 1977
May 2.82 5.26 1998 0.04 1992 1.31 05/1979 12 8 1 0 0.0 0.0 1977
June 1.94 4.72 2005 0.18 1987 2.00 09/2000 9 5 1 0 0.0 0.0 1977
July 0.72 3.65 1983 0.00 2004 1.10 09/1995 4 2 0 0 0.0 0.0 1977
August 1.11 3.84 1976 0.00 2010 1.39 30/1983 5 3 1 0 0.0 0.0 1976
September 1.70 4.59 1977 0.00 2008 1.80 20/1982 7 4 1 0 0.0 0.0 1976
October 3.15 7.76 1990 0.25 1987 1.99 11/1995 12 7 2 1 0.0 0.0 1976
November 6.42 15.03 2006 0.81 1976 2.96 22/2011 18 13 4 1 0.4 6.0 1985
December 6.75 13.73 1996 0.10 2008 3.90 03/2007 18 13 5 2 0.8 15.0 2008
Annual 43.79 64.39 1996 26.73 1985 3.90 20071203 149 101 28 7 3.0 25.3 1980
Winter 17.83 29.05 1997 6.02 1977 3.90 20071203 51 36 13 3 2.5 25.3 1980
Spring 10.92 17.09 2011 6.21 1994 2.75 19830301 44 30 6 1 0.0 0.0 1977
Summer 3.76 9.28 1983 1.37 2003 2.00 20000609 18 10 2 0 0.0 0.0 1977
Fall 11.28 18.98 2006 3.21 1976 2.96 20111122 36 25 8 2 0.4 6.0 1985
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