PORTOLA, CALIFORNIA

Period of Record General Climate Summary - Precipitation

Station:(047085) PORTOLA
From Year=1915 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 3.67 12.05 1969 0.08 1991 3.57 21/1967 8 6 3 1 16.0 112.0 1916
February 3.30 11.94 1986 0.04 1988 2.55 09/1999 8 6 3 1 13.8 86.0 1938
March 2.84 13.22 1995 0.08 1926 3.61 10/1995 8 6 2 1 9.9 64.0 1967
April 1.33 6.09 2006 0.04 1952 1.46 07/1935 5 4 1 0 2.9 61.0 1982
May 1.01 3.41 1996 0.00 1924 2.40 16/1996 5 3 1 0 0.7 7.5 1971
June 0.59 2.59 1969 0.00 1917 1.12 01/1961 3 2 0 0 0.0 1.0 1925
July 0.31 2.54 1952 0.00 1927 1.86 11/2001 1 1 0 0 0.0 0.0 1925
August 0.25 2.09 1965 0.00 1922 2.02 20/1990 1 1 0 0 0.0 0.0 1924
September 0.38 2.85 1982 0.00 1922 1.10 11/1976 2 1 0 0 0.1 4.0 1971
October 1.17 9.70 1962 0.00 1915 3.89 13/1962 4 2 1 0 0.3 5.0 1948
November 2.19 8.64 1983 0.00 1929 2.46 23/1988 6 4 2 1 4.7 33.0 2010
December 3.44 14.36 1955 0.00 1989 4.18 19/1955 7 6 2 1 12.2 71.7 1971
Annual 20.48 39.08 1996 9.45 1928 4.18 19551219 57 41 14 5 60.7 185.6 1952
Winter 10.41 32.74 1993 1.41 1931 4.18 19551219 23 18 8 3 42.1 153.0 1952
Spring 5.18 18.90 1995 1.09 2004 3.61 19950310 18 12 3 1 13.5 84.6 1982
Summer 1.15 6.15 1965 0.00 1935 2.02 19900820 5 3 1 0 0.0 0.0 1945
Fall 3.74 12.27 1983 0.01 1929 3.89 19621013 11 8 2 1 5.1 33.0 2010
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