NEWHALEM, WASHINGTON

Period of Record General Climate Summary - Precipitation

Station:(457690) SKAGIT POWER PLANT
From Year=1909 To Year=1958
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 10.94 28.71 1953 2.89 1949 4.12 24/1935 19 15 8 4 23.6 89.0 1913
February 8.59 18.87 1951 2.64 1938 5.77 10/1951 16 12 6 3 14.2 70.2 1949
March 6.97 12.05 1950 1.59 1941 2.75 04/1950 17 13 5 2 4.3 25.5 1956
April 4.10 8.97 1937 0.87 1951 2.05 20/1937 15 10 3 1 0.4 5.5 1937
May 2.88 5.51 1939 0.45 1958 1.54 28/1939 13 8 1 0 0.0 0.0 1910
June 2.45 6.04 1931 0.03 1932 1.60 02/1936 12 6 1 0 0.0 0.0 1931
July 1.37 3.38 1934 0.01 1926 1.84 12/1934 7 4 1 0 0.0 0.0 1931
August 1.64 5.86 1948 0.12 1931 2.00 15/1950 8 4 1 0 0.0 0.0 1931
September 3.90 8.32 1933 0.64 1957 2.52 05/1931 11 7 3 1 0.0 0.0 1912
October 8.34 17.66 1955 1.35 1911 4.51 25/1955 16 12 6 3 0.1 2.0 1951
November 11.30 27.68 1909 1.16 1936 4.21 26/1949 19 15 8 3 3.5 26.0 1911
December 12.66 28.74 1933 3.10 1913 4.19 27/1949 20 17 10 4 13.5 63.0 1948
Annual 75.15 100.80 1933 47.59 1952 5.77 19510210 172 123 52 21 59.6 174.0 1937
Winter 32.19 50.79 1934 16.95 1929 5.77 19510210 55 44 23 11 51.4 139.2 1949
Spring 13.96 22.17 1950 5.97 1912 2.75 19500304 45 30 9 3 4.7 25.5 1956
Summer 5.47 10.43 1948 2.14 1925 2.00 19500815 26 14 3 1 0.0 0.0 1931
Fall 23.54 38.93 1909 5.40 1952 4.51 19551025 45 34 17 7 3.6 23.5 1946
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