ROCK SPRINGS, WYOMING

Monthly Average Temperature (Degrees Fahrenheit)

(487840)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 197905
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
1898 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 26.16 h 14.95 c 14.95
1899 20.67 j ----- z 29.19 43.10 a 48.18 54.27 62.95 a 58.45 56.55 a 37.21 28.64 a 14.50 k 46.50
1900 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1901 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 57.83 g 46.48 35.75 26.85 36.36
1902 24.35 a 32.88 ----- z ----- z 54.44 64.92 62.18 65.55 55.92 47.87 35.53 ----- z 49.29
1903 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1904 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1905 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1906 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1907 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1908 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1909 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1910 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1911 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1912 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1913 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1914 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1915 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1916 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1917 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1918 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1919 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1920 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1921 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1922 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1923 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1924 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1925 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1926 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1927 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1928 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1929 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1930 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1931 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1932 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1933 20.91 b 15.23 32.40 37.48 46.10 64.57 69.97 64.06 57.40 48.76 36.03 31.69 43.72
1934 24.66 31.41 39.73 46.78 57.35 59.90 68.73 67.48 54.10 47.10 33.22 21.81 46.02
1935 24.18 27.54 30.66 39.93 46.68 61.40 69.24 66.95 57.32 43.15 28.43 22.42 43.16
1936 19.27 24.03 30.23 41.90 55.34 64.15 70.24 67.85 54.37 43.47 30.52 23.77 43.76
1937 6.45 18.96 29.39 38.27 53.37 58.45 68.24 66.77 58.63 46.40 32.03 23.23 41.68
1938 22.16 23.54 29.71 41.85 49.50 62.22 64.94 64.50 58.63 46.11 25.47 25.85 42.87
1939 21.68 15.30 33.53 44.88 53.68 57.42 67.68 64.68 56.85 45.69 33.45 29.53 43.70
1940 17.47 23.60 36.66 43.05 54.55 63.90 69.13 67.29 57.70 46.18 25.68 24.71 44.16
1941 15.06 26.55 31.76 39.68 53.76 58.70 66.81 64.97 51.72 ----- z 33.40 22.19 42.24
1942 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1943 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1944 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1945 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1946 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1947 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1948 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 67.58 60.75 45.11 27.65 18.61 43.94
1949 6.42 19.73 34.90 47.97 a 53.15 60.50 68.66 67.45 58.65 41.10 41.73 23.52 43.65
1950 19.56 24.77 31.97 42.05 47.65 59.12 66.31 65.32 56.30 50.31 35.57 31.81 44.23
1951 23.24 f 30.46 30.76 42.17 52.35 56.20 68.47 65.52 57.20 43.53 a 28.63 21.24 45.14
1952 19.02 21.29 26.18 44.52 53.02 62.28 68.61 67.69 60.62 49.71 25.50 22.50 43.41
1953 32.79 28.41 35.73 39.02 46.87 62.45 71.85 67.45 60.05 46.53 36.82 26.50 46.21
1954 27.90 33.89 30.32 47.28 54.77 61.08 71.66 66.53 59.45 47.16 38.90 18.92 46.49
1955 19.11 21.93 28.69 40.73 53.32 60.18 69.56 69.45 57.37 47.16 30.00 28.92 43.87
1956 25.71 18.86 33.82 42.97 55.05 64.97 69.31 64.77 59.10 47.03 31.22 28.10 45.08
1957 15.97 33.55 36.05 40.93 50.44 60.82 68.48 67.15 55.35 46.42 27.43 26.37 44.08
1958 16.98 30.50 30.56 39.78 57.16 63.73 66.87 69.77 59.25 47.29 35.38 32.55 45.82
1959 23.77 25.39 34.08 43.83 49.68 64.82 69.40 66.02 55.05 45.71 35.65 26.87 45.02
1960 18.79 18.52 34.44 46.07 52.97 64.23 71.56 66.47 59.05 45.71 31.28 19.42 44.04
1961 23.39 29.32 34.31 41.85 53.00 66.10 69.52 68.11 50.72 42.65 27.73 20.81 43.96
1962 16.66 28.41 26.10 46.45 52.77 60.52 66.97 65.42 58.25 48.11 35.98 27.45 44.42
1963 18.66 32.95 33.34 40.07 55.11 61.07 69.79 67.10 60.43 51.13 35.02 25.65 45.86
1964 20.71 20.69 26.05 40.38 52.00 a 58.65 71.73 65.18 56.70 47.08 30.42 24.06 d 42.80
1965 24.84 27.62 26.02 43.72 49.55 58.60 68.06 64.79 49.37 49.37 37.20 24.00 43.59
1966 20.23 21.66 33.94 41.77 54.55 60.30 71.50 65.66 58.67 42.60 36.25 24.50 44.30
1967 28.05 28.96 35.53 40.20 49.10 57.93 69.24 67.82 58.78 47.84 32.57 17.27 44.44
1968 20.79 27.86 35.73 38.13 48.85 61.15 68.60 62.11 54.87 46.95 30.73 21.31 43.09
1969 27.87 21.23 25.63 44.13 57.50 57.08 69.11 70.39 60.33 38.10 33.90 25.69 44.25
1970 25.66 31.27 31.17 a 37.75 53.00 61.12 69.32 70.21 52.90 39.89 33.57 21.13 43.91
1971 27.39 27.29 31.53 41.60 50.29 61.18 67.02 69.56 52.68 41.81 25.62 17.03 42.75
1972 19.87 25.98 39.44 43.03 52.60 63.05 66.44 65.69 54.45 44.24 28.13 16.21 43.26
1973 10.61 15.84 29.66 36.83 51.31 60.80 65.94 67.18 53.57 46.92 30.15 26.63 41.29
1974 18.15 24.30 36.85 41.48 52.65 64.68 69.37 64.32 54.50 46.39 33.07 22.76 44.04
1975 21.92 26.30 32.71 36.23 47.58 56.58 70.10 64.79 54.98 44.32 a 30.32 27.10 42.74
1976 24.16 25.55 30.95 a 42.17 53.72 a 58.05 69.79 e 64.58 57.97 44.32 35.27 27.85 44.53
1977 24.50 31.64 30.40 46.43 a 51.34 67.92 68.52 64.95 56.98 47.47 33.27 29.23 a 46.05
1978 25.31 28.25 37.90 43.08 49.08 61.18 69.66 f 65.05 c 55.62 a 48.14 c 27.87 15.42 41.54
1979 9.23 24.62 34.05 42.53 46.03 p ----- z ----- z ----- z ----- z ----- z ----- z ----- z 27.61
Period of Record Statistics
MEAN 20.76 25.52 32.25 42.00 52.03 61.13 68.55 66.25 56.65 45.68 32.12 23.96 44.06
S.D. 5.74 5.10 3.61 2.90 2.98 2.98 2.14 2.20 2.75 3.02 3.93 4.44 1.20
SKEW -0.70 -0.30 0.00 0.09 -0.23 0.00 -0.98 -0.76 -0.62 -0.90 0.08 -0.17 0.12
MAX 32.79 33.89 39.73 47.97 57.50 67.92 71.85 70.39 60.75 51.13 41.73 32.55 46.49
MIN 6.42 15.23 25.63 36.23 46.10 54.27 62.18 58.45 49.37 37.21 25.47 14.95 41.29
NO YRS 40 41 41 41 41 41 40 42 42 42 43 42 36