ROCK SPRINGS, WYOMING

Monthly Total Heating Degree Days

(487840)

Base Temperature = 65 F

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.
Months with 5 missing days or less use mean for missing day(s)
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 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 854.50 h 1551.66 c 1551.66
1899 931.00 j 0.00 z 1110.00 656.90 a 521.50 334.50 85.77 a 207.50 270.00 a 861.50 1090.86 a 1010.00 k 5138.53
1900 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
1901 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 180.50 g 574.00 877.50 1182.50 2634.00
1902 1260.15 a 899.50 0.00 z 0.00 z 349.00 73.50 140.00 43.00 278.50 531.00 884.00 0.00 z 4458.65
1903 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
1904 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
1905 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
1906 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
1907 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
1908 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
1909 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
1910 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
1911 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
1912 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
1913 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
1914 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
1915 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
1916 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
1917 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
1918 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
1919 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
1920 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
1921 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
1922 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
1923 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
1924 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
1925 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
1926 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
1927 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
1928 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
1929 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
1930 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
1931 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
1932 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
1933 1366.67 b 1393.50 1010.50 825.50 586.00 54.50 4.50 94.00 235.50 503.50 869.00 1032.50 7975.67
1934 1250.50 940.50 783.50 546.50 238.00 159.50 12.50 14.00 327.50 555.00 953.50 1339.00 7120.00
1935 1265.50 1049.00 1064.50 752.00 568.00 121.50 9.00 12.00 237.00 677.50 1097.00 1320.00 8173.00
1936 1417.50 1188.00 1078.00 693.00 299.50 113.00 15.00 12.50 319.00 667.50 1034.50 1278.00 8115.50
1937 1815.00 1289.00 1104.00 802.00 360.50 227.00 14.50 20.00 196.50 576.50 989.00 1295.00 8689.00
1938 1328.00 1161.00 1094.00 694.50 480.50 105.50 49.00 60.00 191.50 585.50 1186.00 1213.50 8149.00
1939 1343.00 1391.50 975.50 603.50 351.00 236.00 19.50 50.50 246.00 598.50 946.50 1099.50 7861.00
1940 1473.50 1200.50 878.50 658.50 324.00 111.50 7.00 36.00 219.00 583.50 1179.50 1249.00 7920.50
1941 1548.00 1076.50 1030.50 759.50 349.00 207.00 23.50 67.00 398.50 0.00 z 948.00 1327.00 7734.50
1942 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
1943 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
1944 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
1945 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
1946 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
1947 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 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 7.00 152.00 616.50 1120.50 1438.00 3334.00
1949 1816.00 1267.50 933.00 511.03 a 367.50 147.50 5.50 10.00 196.00 741.00 698.00 1286.00 7979.03
1950 1408.50 1126.50 1024.00 688.50 538.00 187.50 32.50 28.00 292.00 455.50 883.00 1029.00 7693.00
1951 1044.00 f 967.00 1061.50 685.00 392.00 271.50 20.00 43.50 236.50 665.47 a 1091.00 1356.50 6789.97
1952 1425.50 1267.50 1203.50 614.50 371.50 97.50 24.00 19.00 156.50 474.00 1185.00 1317.50 8156.00
1953 998.50 1024.50 907.50 779.50 562.00 121.50 0.00 12.50 153.00 572.50 845.50 1193.50 7170.50
1954 1150.00 871.00 1075.00 531.50 320.50 178.50 6.00 41.50 174.50 553.00 783.00 1428.50 7113.00
1955 1422.50 1206.00 1125.50 728.00 362.00 183.00 11.50 4.50 239.00 553.00 1050.00 1118.50 8003.50
1956 1218.00 1338.00 966.50 661.00 310.00 50.00 10.00 47.00 182.00 557.00 1013.50 1144.00 7497.00
1957 1520.00 880.50 897.50 722.00 451.50 159.50 5.00 25.50 290.50 576.00 1127.00 1197.50 7852.50
1958 1488.50 966.00 1067.50 756.50 245.50 76.50 21.50 9.50 188.00 549.00 888.50 1006.00 7263.00
1959 1278.00 1109.00 958.50 635.00 475.00 86.00 18.00 36.50 312.50 598.00 880.50 1182.00 7569.00
1960 1432.50 1348.00 947.50 568.00 373.50 65.50 8.00 62.00 199.50 598.00 1011.50 1413.00 8027.00
1961 1290.00 999.00 951.50 694.50 372.00 59.50 8.00 16.00 428.50 693.00 1118.00 1370.00 8000.00
1962 1498.50 1024.50 1206.00 556.50 379.00 174.00 23.00 64.00 208.00 523.50 870.50 1164.00 7691.50
1963 1436.50 897.50 981.50 748.00 306.50 134.00 1.50 22.00 142.50 430.00 899.50 1220.00 7219.50
1964 1373.00 1285.00 1207.50 738.50 404.03 a 209.50 0.00 88.00 249.00 555.50 1037.50 1269.28 d 8416.81
1965 1245.00 1046.50 1208.50 638.50 479.00 194.00 3.50 66.00 469.00 484.50 834.00 1271.00 7939.50
1966 1388.00 1213.50 963.00 697.00 324.00 168.50 1.00 47.00 190.00 694.50 862.50 1255.50 7804.50
1967 1145.50 1009.00 913.50 744.00 493.00 216.50 0.00 11.00 199.00 532.00 973.00 1479.50 7716.00
1968 1370.50 1077.00 907.50 806.00 500.50 148.50 14.50 136.50 304.00 559.50 1028.00 1354.50 8207.00
1969 1151.00 1225.50 1220.50 626.00 233.00 245.50 11.00 7.50 142.50 834.00 933.00 1218.50 7848.00
1970 1219.50 944.50 1048.83 a 817.50 375.50 176.00 7.50 0.50 363.50 778.50 943.00 1360.00 8034.83
1971 1166.00 1056.00 1037.50 702.00 456.00 144.50 12.50 2.00 380.50 719.00 1181.50 1487.00 8344.50
1972 1399.00 1131.50 792.50 659.00 384.50 73.00 35.00 47.50 316.50 643.50 1106.00 1512.50 8100.50
1973 1686.00 1376.50 1095.50 845.00 424.50 183.50 55.50 25.50 343.00 560.50 1045.50 1189.50 8830.50
1974 1452.50 1139.50 872.50 705.50 383.00 115.00 4.50 57.50 317.50 577.00 958.00 1309.50 7892.00
1975 1335.50 1083.50 1001.00 863.00 540.00 253.00 2.00 53.00 300.50 641.18 a 1040.50 1175.00 8288.18
1976 1266.00 1144.00 1055.55 a 685.00 349.78 a 221.00 1.19 e 38.50 221.00 641.00 892.00 1151.50 7666.53
1977 1255.50 934.00 1072.50 557.07 a 423.50 13.00 7.00 61.00 254.00 543.50 952.00 1108.77 a 7181.84
1978 1230.50 1029.00 840.00 657.50 493.50 139.50 4.50 f 75.84 c 302.07 a 522.57 c 1114.00 1537.00 7941.48
1979 1729.00 1130.50 959.50 674.00 284.50 p 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4493.00
Period of Record Statistics
MEAN 1371.58 1114.80 1015.40 689.93 402.86 152.11 18.25 42.44 257.67 598.96 986.53 1272.16 7875.25
S.D. 177.87 149.06 112.01 87.12 91.63 69.18 26.04 38.91 79.89 93.62 117.96 137.61 418.86
SKEW 0.70 0.23 0.00 -0.09 0.22 0.26 3.15 2.14 0.62 0.90 -0.08 0.17 -0.12
MAX 1816.00 1393.50 1220.50 863.00 586.00 334.50 140.00 207.50 469.00 861.50 1186.00 1551.66 8830.50
MIN 998.50 871.00 783.50 511.03 233.00 13.00 0.00 0.50 142.50 430.00 698.00 1006.00 7113.00
NO YRS 40 41 41 41 41 41 40 42 42 42 43 42 36