YELLOWSTONE PK MAMMOTH, WYOMING

Period of Record General Climate Summary - Precipitation

Station:(489905) YELLOWSTONE PARK
From Year=1894 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 1.14 4.76 1895 0.05 1981 1.60 17/1895 10 4 0 0 14.3 47.6 1895
February 0.76 3.40 1899 0.07 2010 0.80 16/1898 9 3 0 0 10.1 34.0 1899
March 1.22 3.13 1900 0.12 1969 2.10 01/1979 9 4 0 0 12.9 39.5 1996
April 1.21 2.77 1956 0.07 1979 1.00 11/1982 9 4 0 0 6.6 22.9 2009
May 1.98 4.25 1942 0.12 1979 1.86 07/1988 12 6 1 0 1.7 13.7 1943
June 2.12 5.79 1945 0.43 1961 1.55 29/1895 13 6 1 0 0.2 5.5 2001
July 1.32 3.57 1987 0.25 1943 1.40 04/1902 9 4 0 0 0.0 0.0 1902
August 1.28 4.21 1982 0.14 1988 2.25 30/1982 8 4 1 0 0.0 2.0 1964
September 1.19 3.66 1961 0.05 1979 1.25 11/1961 8 4 1 0 0.8 6.2 1970
October 1.07 3.39 1946 0.00 1952 1.16 07/1981 7 3 0 0 3.8 25.0 1991
November 1.16 3.92 1896 0.04 1899 1.84 20/2010 10 4 0 0 10.7 45.5 2010
December 0.95 4.06 1955 0.02 1986 1.70 23/1955 10 3 0 0 12.5 31.3 1951
Annual 15.41 20.34 1947 8.85 1903 2.25 19820830 114 50 5 0 73.7 127.3 1975
Winter 2.85 8.28 1899 0.69 1987 1.70 19551223 29 10 1 0 36.9 71.4 1954
Spring 4.41 7.82 1899 1.79 1998 2.10 19790301 30 14 2 0 21.3 45.7 1996
Summer 4.73 8.86 1945 1.56 1988 2.25 19820830 30 15 2 0 0.3 5.5 2001
Fall 3.42 6.93 1946 0.57 1987 1.84 20101120 24 11 1 0 15.2 45.5 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