ROCK SPRINGS FAA AP, WYOMING

Monthly Average Temperature (Degrees Fahrenheit)

(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) JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1948 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 67.53 60.93 45.21 24.40 16.71 42.96
1949 5.13 17.84 32.44 45.53 51.44 58.63 67.85 66.81 57.47 38.45 40.68 21.98 42.02
1950 17.76 22.32 28.77 39.57 45.33 a 58.43 64.48 64.50 54.42 50.24 33.23 29.23 42.36
1951 17.79 27.25 27.44 39.10 50.25 a 54.47 67.84 64.56 55.87 42.11 27.58 19.19 41.12
1952 17.65 19.36 23.34 42.90 51.45 62.20 67.40 66.60 60.33 50.03 24.50 21.45 42.27
1953 29.98 25.32 34.10 37.07 44.92 62.07 71.32 66.39 60.05 46.31 35.72 23.71 44.75
1954 26.69 32.38 28.15 44.98 53.08 59.67 71.05 66.44 58.91 a 45.92 36.90 19.65 45.32
1955 17.16 19.50 25.24 37.93 51.16 57.90 69.19 68.89 58.13 47.06 27.32 26.65 42.18
1956 23.84 17.57 31.40 41.30 54.39 64.93 68.05 64.97 59.65 45.24 28.77 25.97 43.84
1957 13.82 31.57 33.05 37.55 a 48.18 58.98 67.76 66.37 55.35 44.32 23.67 a 24.85 42.12
1958 16.16 29.18 27.37 36.90 56.05 62.27 65.44 69.06 57.65 46.48 32.22 29.95 44.06
1959 21.32 22.11 29.37 40.33 46.40 63.15 68.89 65.55 53.42 43.11 32.03 25.71 42.62
1960 17.11 14.53 30.55 42.83 50.98 62.25 70.29 65.23 59.08 44.08 29.08 18.29 42.03
1961 22.55 25.79 30.95 38.95 51.40 64.07 67.47 65.76 47.23 39.68 24.73 17.15 41.31
1962 12.82 24.84 22.77 43.28 49.34 57.97 65.16 64.23 56.77 47.66 35.13 26.61 42.22
1963 14.71 29.95 29.76 36.12 52.42 58.17 67.65 65.94 59.27 50.19 33.13 23.18 43.37
1964 18.13 16.86 22.00 36.07 48.76 55.72 ----- z 63.47 55.08 46.44 27.77 20.58 37.35
1965 22.52 23.54 22.66 40.13 45.95 55.57 65.76 63.11 46.82 48.42 35.42 22.21 41.01
1966 17.32 18.77 31.19 39.03 53.27 58.83 70.31 65.44 58.42 41.68 35.35 22.61 42.69
1967 26.18 26.75 33.77 38.75 47.53 56.30 68.29 67.52 57.97 46.16 30.75 14.58 42.88
1968 19.97 26.22 33.89 35.80 47.37 59.37 67.79 61.40 54.33 45.44 29.00 19.85 41.70
1969 26.44 20.86 24.05 43.18 56.18 55.37 68.53 70.34 60.52 35.94 32.25 24.90 43.21
1970 23.90 30.68 28.65 35.05 51.48 59.32 67.84 70.11 51.25 38.53 31.93 20.34 42.42
1971 26.15 26.11 30.32 41.38 49.53 60.77 66.97 69.94 51.33 40.73 24.95 15.95 42.01
1972 18.95 24.60 37.87 41.38 51.35 61.80 66.10 66.00 55.67 43.81 28.70 16.13 42.70
1973 12.23 16.64 29.42 35.87 51.29 60.67 65.61 67.53 53.62 46.87 30.05 25.00 41.23
1974 17.15 22.34 35.50 40.60 52.00 63.85 68.90 64.44 55.55 47.35 33.00 21.92 43.55
1975 21.26 25.59 31.40 34.93 46.31 55.48 68.71 63.37 55.48 43.53 29.40 26.03 41.79
1976 23.18 25.67 29.92 41.23 52.23 58.25 69.71 63.95 57.43 43.26 33.07 26.40 43.69
1977 22.45 30.79 27.82 45.67 49.53 67.05 68.13 64.35 56.02 46.48 32.02 27.58 44.82
1978 24.08 27.46 37.58 41.25 46.76 60.10 67.66 62.94 55.02 46.79 24.55 12.53 42.23
1979 6.77 24.46 b 32.48 41.75 49.90 59.93 68.10 64.18 60.40 45.97 23.38 23.68 41.75
1980 17.42 24.97 29.56 40.52 49.08 61.48 68.44 63.39 57.33 44.63 32.10 32.16 43.42
1981 27.31 27.96 34.58 45.50 48.94 61.83 67.52 65.08 58.18 39.74 33.50 27.60 44.81
1982 21.13 22.61 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 21.87
1983 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 61.16 n ----- z 28.78 15.29 22.04
1984 21.27 e 19.93 30.06 36.35 52.06 57.77 67.98 67.44 53.87 38.69 30.73 16.26 41.03
1985 13.13 19.25 33.10 46.80 55.55 62.97 71.02 65.90 51.33 42.89 24.72 20.77 42.29
1986 24.40 28.09 39.69 41.13 49.26 64.62 64.94 ----- z 51.67 43.24 31.53 22.39 41.91
1987 18.19 27.73 30.63 47.38 53.47 62.87 65.81 63.76 57.68 47.60 30.73 20.74 43.88
1988 18.87 27.69 29.79 44.70 51.03 67.50 72.10 67.42 56.10 51.66 30.28 19.21 44.70
1989 20.95 12.25 35.79 45.43 51.56 59.03 70.85 64.79 56.63 45.05 34.98 23.31 43.39
1990 25.31 24.00 35.26 45.43 48.94 62.45 68.53 66.92 62.00 44.60 32.60 14.42 44.20
1991 18.74 30.93 33.24 38.60 49.23 60.80 67.82 66.92 56.40 44.60 27.05 16.15 42.54
1992 16.73 27.60 37.40 47.68 54.35 59.73 64.45 66.42 56.47 47.71 25.87 16.87 43.44
1993 14.42 12.00 32.81 38.88 51.97 54.90 60.87 62.03 54.83 42.11 25.48 22.44 39.40
1994 26.08 20.85 b 36.07 a 41.97 55.26 63.57 68.15 68.15 58.10 42.23 25.10 23.97 44.12
1995 20.05 30.04 ----- z 38.38 43.21 b 55.23 64.85 67.53 55.87 42.45 36.23 26.90 43.70
1996 21.00 25.93 31.30 a 41.08 49.26 62.42 68.77 66.98 53.28 41.34 32.24 a 23.24 43.07
1997 20.11 21.57 a 33.97 35.13 51.82 61.35 65.90 65.48 56.65 43.40 29.32 16.56 41.77
1998 24.56 23.77 28.52 39.48 50.27 53.12 69.40 67.15 60.47 44.27 34.02 22.00 43.09
1999 26.13 25.91 36.05 36.61 b 47.08 58.57 68.32 66.68 52.98 47.87 38.27 ----- z 45.86
2000 24.85 29.66 33.21 44.88 53.73 61.47 70.15 69.39 53.90 a 43.97 20.93 a 21.05 43.93
2001 20.45 b 20.68 33.85 42.10 53.56 62.52 70.87 a 69.21 60.53 a 46.02 32.80 18.62 a 44.27
2002 20.27 23.14 28.32 42.82 51.08 63.88 73.00 66.44 57.12 39.74 29.30 25.81 43.41
2003 30.69 23.36 34.82 43.37 52.60 59.05 74.08 70.69 57.08 50.00 25.03 22.77 45.30
2004 15.95 17.62 36.73 43.48 52.03 59.70 67.87 64.24 55.97 44.92 30.55 27.29 43.03
2005 27.11 23.95 32.60 41.02 49.82 57.73 70.66 65.23 56.13 46.87 33.25 20.89 43.77
2006 24.27 21.30 30.95 43.90 52.98 65.07 72.66 66.48 53.93 41.52 31.68 21.82 43.88
2007 12.94 27.39 38.32 43.20 52.05 64.57 73.68 69.16 57.18 48.48 35.40 18.03 45.03
2008 13.06 21.83 28.13 36.97 48.10 59.17 71.11 67.13 55.12 44.44 35.85 21.85 41.90
2009 24.92 27.14 32.24 39.60 52.39 57.17 67.68 65.13 60.07 37.58 33.65 15.32 42.74
2010 21.39 23.48 33.66 39.50 44.71 59.88 68.65 65.97 59.63 48.00 29.27 24.13 43.19
2011 21.36 j 20.64 32.92 38.32 45.84 59.28 69.27 70.26 60.25 48.02 c 27.90 21.94 44.97
2012 27.77 25.53 40.34 46.22 53.76 65.82 71.95 71.16 60.73 44.89 37.92 22.23 47.36
2013 17.80 a 25.68 35.19 44.50 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z -0.50 z 26.22
Period of Record Statistics
MEAN 20.29 23.93 31.65 40.85 50.50 60.31 68.45 66.28 56.46 44.64 30.59 21.79 43.02
S.D. 5.22 4.60 4.14 3.41 2.95 3.21 2.45 2.21 3.15 3.36 4.22 4.24 1.36
SKEW -0.45 -0.48 -0.30 0.10 -0.32 0.01 -0.11 0.24 -0.76 -0.37 -0.07 0.00 0.32
MAX 30.69 32.38 40.34 47.68 56.18 67.50 74.08 71.16 62.00 51.66 40.68 32.16 47.36
MIN 5.13 12.00 22.00 34.93 43.21 53.12 60.87 61.40 46.82 35.94 20.93 12.53 39.40
NO YRS 63 64 62 62 62 62 61 62 63 63 64 63 57