ROCK SPRINGS FAA AP, WYOMING

Monthly Total Snowfall (Inches)

(487845)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S) JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN ANN
1947-48 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1948-49 0.00 z 0.00 0.00 0.00 16.30 12.80 13.10 5.10 6.80 0.90 2.70 0.00 57.70
1949-50 0.50 0.30 0.00 19.10 0.50 10.50 10.10 10.90 13.40 6.20 9.90 0.00 81.40
1950-51 0.00 a 0.00 0.00 1.60 4.30 6.60 11.00 4.60 7.00 3.20 0.00 a 0.40 38.70
1951-52 0.00 0.00 0.00 1.20 0.80 8.00 5.40 3.70 9.80 2.10 1.00 0.00 32.00
1952-53 0.00 0.00 0.00 0.00 2.30 5.20 1.90 3.90 2.10 0.80 4.00 0.00 20.20
1953-54 0.00 0.00 0.00 1.90 7.10 1.80 3.80 1.50 10.80 0.00 0.00 0.00 26.90
1954-55 0.00 0.00 0.00 1.00 1.50 3.00 6.70 14.60 6.60 8.10 0.00 0.00 41.50
1955-56 0.00 0.00 0.00 0.00 4.90 9.00 4.40 3.20 1.20 0.90 0.30 0.00 23.90
1956-57 0.00 0.00 0.00 11.00 1.40 5.10 8.30 0.60 4.10 9.50 0.40 0.00 40.40
1957-58 0.00 0.00 0.00 7.50 14.40 4.50 5.90 2.00 2.40 5.40 0.00 0.00 42.10
1958-59 0.00 0.00 0.00 0.00 7.20 2.00 2.00 17.00 8.50 3.00 1.30 0.00 41.00
1959-60 0.00 0.00 1.20 1.00 2.00 2.50 6.90 10.30 5.20 1.30 0.00 0.00 30.40
1960-61 0.00 0.00 0.00 0.00 11.40 2.40 1.00 11.60 6.80 0.70 0.00 0.00 33.90
1961-62 0.00 0.00 0.00 17.20 5.30 1.70 13.50 8.20 13.00 3.30 0.00 0.00 62.20
1962-63 0.00 0.00 0.00 0.00 1.10 0.00 7.60 3.20 4.10 12.30 0.00 0.00 28.30
1963-64 0.00 0.00 0.00 0.20 2.10 5.20 6.60 9.50 11.80 6.80 5.20 0.00 47.40
1964-65 0.00 z 0.00 0.00 0.40 10.40 9.30 2.30 5.00 7.50 10.10 5.80 0.00 50.80
1965-66 0.00 0.00 22.40 0.00 3.20 5.70 4.80 6.90 4.50 8.10 0.00 0.00 55.60
1966-67 0.00 0.00 0.00 5.70 2.40 2.50 5.30 4.90 7.80 4.80 3.00 0.00 36.40
1967-68 0.00 0.00 0.00 0.00 6.30 14.50 4.20 7.10 10.30 14.10 1.30 0.00 57.80
1968-69 0.00 0.00 0.00 0.00 5.80 5.00 7.90 12.70 5.20 6.20 0.00 0.00 42.80
1969-70 0.00 0.00 0.00 5.70 0.00 6.90 3.20 0.00 9.00 7.70 0.00 0.00 32.50
1970-71 0.00 0.00 0.00 7.50 4.60 6.00 4.80 3.40 7.10 9.20 3.50 0.00 46.10
1971-72 0.00 0.00 0.50 18.80 9.30 5.70 6.30 4.50 0.60 6.30 6.50 0.00 58.50
1972-73 0.00 0.00 0.00 4.50 4.00 16.50 8.80 5.80 7.10 15.90 0.70 0.00 63.30
1973-74 0.00 0.00 0.00 4.80 8.10 8.00 5.70 5.40 4.00 10.10 0.00 0.90 47.00
1974-75 0.00 0.00 0.20 0.00 0.00 2.00 2.60 3.50 7.90 6.40 11.50 0.00 34.10
1975-76 0.00 0.00 0.00 3.50 10.90 19.40 1.80 7.00 3.70 7.00 0.00 0.00 53.30
1976-77 0.00 0.00 0.00 1.80 0.00 1.30 7.00 0.00 19.80 4.50 0.00 0.00 34.40
1977-78 0.00 0.00 0.00 0.00 9.00 4.00 16.20 12.60 5.00 4.00 12.00 0.00 62.80
1978-79 0.00 0.00 2.00 0.00 22.10 5.90 a 16.30 3.00 4.40 4.00 1.20 0.00 58.90
1979-80 0.00 0.00 0.00 0.00 7.20 8.00 17.60 0.00 8.60 2.00 0.00 0.00 43.40
1980-81 0.00 0.00 0.00 8.50 4.00 4.70 5.60 1.80 5.20 4.40 1.80 0.00 36.00
1981-82 0.00 0.00 0.00 3.80 1.70 9.10 5.20 9.40 0.00 z 0.00 z 0.00 z 0.00 z 29.20
1982-83 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1983-84 0.00 z 0.00 z 0.00 n 0.00 z 16.20 15.20 5.50 2.10 9.80 8.40 0.00 0.00 57.20
1984-85 0.00 0.00 4.00 4.20 4.60 2.00 7.60 7.10 7.20 0.10 0.00 0.00 36.80
1985-86 0.00 0.00 0.00 0.00 9.60 13.50 3.10 6.10 3.80 12.10 0.80 0.00 49.00
1986-87 0.00 0.00 z 3.90 3.00 2.10 2.80 3.30 3.90 6.30 0.40 0.00 0.00 25.70
1987-88 0.00 0.00 0.00 0.00 4.10 5.50 2.60 0.80 15.80 3.40 2.00 0.00 34.20
1988-89 0.00 0.00 0.00 0.00 3.60 2.80 1.90 10.10 5.90 0.50 1.40 0.00 26.20
1989-90 0.00 0.00 0.00 3.20 1.30 4.10 1.80 4.30 8.60 2.00 0.70 0.50 26.50
1990-91 0.00 0.00 0.00 0.00 2.80 2.80 3.90 0.90 2.80 18.30 7.30 0.00 38.80
1991-92 0.00 0.00 0.00 8.50 14.00 2.40 8.70 0.70 10.80 0.00 0.00 0.00 45.10
1992-93 0.00 0.00 0.00 2.50 12.90 9.20 11.60 6.10 5.90 18.20 1.60 0.00 68.00
1993-94 0.00 0.00 0.00 4.40 3.90 6.70 10.30 10.30 7.90 7.70 0.00 0.00 51.20
1994-95 0.00 0.00 0.00 11.90 12.60 3.30 8.20 14.40 0.00 z 10.20 11.60 2.30 74.50
1995-96 0.00 0.00 0.00 8.10 5.30 3.50 16.70 4.70 4.00 a 2.90 0.00 0.00 45.20
1996-97 0.00 0.00 0.10 17.20 6.00 11.40 20.50 3.10 2.80 5.60 1.00 0.00 67.70
1997-98 0.00 0.00 0.00 6.50 1.10 9.50 6.90 7.30 14.60 9.80 0.00 1.70 57.40
1998-99 0.00 0.00 0.00 10.30 0.90 2.60 0.00 j 0.00 g 0.10 b 0.00 g 0.00 e 0.00 13.90
1999-00 0.00 0.00 0.00 0.00 0.00 a 0.00 z 0.00 e 0.00 h 0.00 e 0.00 d 0.00 a 0.00 0.00
2000-01 0.00 0.00 0.00 b 0.00 c 0.00 d 0.00 d 0.00 f 0.00 d 0.00 a 0.00 b 0.00 z 0.00 z 0.00
2001-02 0.00 z 0.00 z 0.60 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.60
2002-03 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2003-04 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2004-05 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2005-06 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2006-07 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2007-08 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2008-09 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2009-10 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2010-11 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2011-12 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2012-13 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
Period of Record Statistics
MEAN 0.01 0.01 0.67 3.97 5.63 6.12 6.93 5.70 6.75 5.78 1.97 0.12 44.17
S.D. 0.07 0.04 3.18 5.30 5.08 4.41 4.71 4.26 4.17 4.78 3.31 0.42 13.77
SKEW 6.78 6.86 6.35 1.51 1.13 1.06 1.05 0.71 0.73 0.83 1.94 4.08 0.52
MAX 0.50 0.30 22.40 19.10 22.10 19.40 20.50 17.00 19.80 18.30 12.00 2.30 81.40
MIN 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20.20
NO YRS 49 50 52 52 52 51 50 50 50 50 50 50 43