CLE ELUM, WASHINGTON

Monthly Total Heating Degree Days

(451504)

Base Temperature = 65 F

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.
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
1899 1056.50 1009.04 a 886.00 694.50 571.00 341.00 107.00 272.50 243.50 642.50 672.50 1013.00 7509.04
1900 974.00 941.00 676.50 559.50 386.00 181.00 89.50 160.00 302.00 616.00 934.00 912.50 6732.00
1901 1133.00 941.00 814.50 660.50 397.00 356.50 128.50 24.50 376.50 407.50 778.50 1005.50 7023.50
1902 1172.50 912.50 861.50 650.00 383.50 253.50 139.50 78.50 317.00 551.50 903.50 1239.50 7463.00
1903 1117.00 1128.50 919.00 712.00 485.50 176.00 173.00 127.00 385.00 552.50 956.00 1104.50 7836.00
1904 1009.50 1064.50 1053.00 586.50 459.00 282.00 106.00 92.00 217.50 485.50 725.00 1014.50 7095.00
1905 1160.00 1046.00 702.00 555.00 452.00 230.00 67.00 110.00 197.50 702.00 806.50 1131.50 7159.50
1906 1071.00 878.50 918.50 506.50 443.00 349.50 4.50 80.50 260.50 541.50 877.50 1091.00 7022.50
1907 1522.50 913.00 892.50 673.50 345.00 272.50 64.50 209.50 310.00 439.50 813.50 1044.50 7500.50
1908 1125.50 1021.50 835.00 607.00 515.00 278.00 78.53 a 118.00 266.50 605.50 776.00 1147.00 7373.53
1909 1484.50 922.00 800.50 677.00 500.00 246.00 154.00 130.00 253.50 592.00 911.00 1379.50 8050.00
1910 1281.50 1140.00 758.00 564.50 323.00 280.00 69.00 189.50 328.45 a 509.29 c 880.00 1036.00 7359.23
1911 1190.92 a 1068.15 a 782.00 645.00 524.00 256.00 99.72 a 99.50 404.00 637.50 900.50 1023.00 7630.28
1912 1197.00 927.00 901.50 631.00 397.50 215.00 117.00 168.95 a 367.50 701.50 831.50 1053.50 7508.95
1913 1318.00 1145.00 943.50 634.00 443.00 232.00 137.50 104.00 332.50 646.50 855.50 1083.50 7875.00
1914 1024.00 982.50 785.00 565.00 378.00 296.00 58.50 62.00 376.50 540.00 837.50 1419.00 7324.00
1915 1283.00 877.50 711.50 494.00 431.00 230.50 116.50 15.00 305.00 535.50 967.00 1128.50 7095.00
1916 1584.00 1052.00 855.00 591.50 527.50 272.00 175.00 89.50 269.50 567.00 991.00 1220.50 8194.50
1917 1145.50 973.00 1035.00 719.50 459.00 332.50 66.00 38.00 235.50 449.50 726.50 937.00 7117.00
1918 988.50 1023.50 856.00 583.00 494.50 140.50 81.50 123.00 168.50 496.50 862.00 1082.50 6900.00
1919 925.50 g 971.50 811.50 564.00 465.50 292.50 63.00 47.00 326.00 627.50 872.00 1361.00 6401.50
1920 1133.50 963.00 825.00 704.00 501.50 265.00 41.50 93.00 289.29 b 574.50 834.00 826.00 g 6224.29
1921 1160.50 889.30 e 814.27 a 692.50 399.00 158.50 76.00 59.93 a 355.50 503.00 870.52 a 967.00 f 5979.02
1922 1398.50 1113.50 976.50 687.50 439.00 71.50 10.50 50.50 170.50 479.00 900.00 1287.02 a 7584.02
1923 493.00 q 766.50 g 829.00 547.00 419.50 222.00 40.00 19.00 200.00 571.00 735.00 1067.00 4649.50
1924 1246.00 792.00 779.00 591.50 263.50 194.50 72.50 85.50 277.00 577.50 920.00 1241.00 7040.00
1925 1046.50 796.50 749.00 521.50 338.50 189.00 6.50 114.70 a 174.50 k 371.00 h 867.00 865.62 e 5494.82
1926 1070.50 753.50 640.50 435.50 435.50 119.50 39.50 53.50 388.50 498.50 797.07 a 1145.50 6377.57
1927 1231.73 a 933.33 a 823.88 e 639.00 494.00 148.50 53.00 65.50 313.00 536.30 a 791.00 1259.78 b 7289.03
1928 1189.48 d 0.00 z 776.00 669.00 239.50 190.00 45.50 62.00 244.50 539.00 806.00 1176.00 5936.98
1929 1398.00 1189.00 771.00 696.00 400.50 208.50 68.50 61.50 277.00 523.00 850.00 966.50 7409.50
1930 0.00 z 831.50 728.50 480.00 386.47 a 223.50 50.12 a 55.69 d 285.00 b 586.93 a 851.00 748.00 h 4478.70
1931 985.50 875.50 710.00 449.50 261.00 161.50 35.50 69.50 265.50 582.00 1003.00 1203.50 6602.00
1932 1206.00 1015.00 802.00 550.00 409.00 121.00 67.50 78.50 220.50 499.50 764.50 1172.50 6906.00
1933 1083.50 1087.00 880.50 595.50 485.67 a 207.00 41.50 79.00 349.00 499.50 698.50 964.00 6970.67
1934 905.50 0.00 z 628.50 395.00 301.00 115.50 42.00 26.00 287.68 b 435.50 724.50 172.00 z 3861.18
1935 1194.50 860.00 892.50 589.50 351.00 0.00 z 0.00 z 86.50 180.50 591.50 863.00 944.00 6553.00
1936 936.50 1384.50 851.50 502.00 285.50 166.00 57.50 53.00 286.03 a 464.50 950.00 958.00 6895.03
1937 1643.50 1081.11 a 787.00 662.00 385.50 205.50 17.57 a 115.50 172.00 441.00 766.00 974.50 7251.18
1938 1036.50 921.50 831.00 512.00 330.00 104.48 a 25.00 102.50 119.50 515.00 930.50 984.50 6412.48
1939 941.00 949.93 a 752.00 485.00 352.00 223.00 73.50 49.50 220.00 480.00 729.50 904.17 a 6159.59
1940 1077.50 855.50 633.50 508.50 259.50 74.50 22.50 10.50 138.00 459.00 906.00 1015.50 5960.50
1941 1051.50 832.00 645.00 466.00 367.50 160.50 6.00 69.23 a 0.00 z 540.00 735.00 1022.47 b 5895.20
1942 1290.00 887.00 782.75 a 257.00 n 165.50 o 216.50 21.18 a 47.00 123.50 500.28 b 923.00 1039.50 5830.71
1943 1364.52 a 881.50 885.00 481.55 a 419.57 b 254.00 31.52 a 78.65 d 156.00 492.90 a 828.10 a 1041.82 c 6915.13
1944 1165.60 a 897.50 831.00 569.50 381.50 158.00 45.00 75.00 165.50 421.60 a 847.00 1190.00 6747.20
1945 1010.50 830.50 816.50 635.69 a 360.00 247.50 47.50 38.00 292.50 497.00 960.00 1126.00 6861.69
1946 1064.50 896.50 790.50 628.00 361.00 0.00 z 74.92 a 62.00 285.54 b 636.61 c 977.14 b 1035.00 6811.70
1947 1172.50 849.50 664.50 476.50 177.50 162.50 40.50 91.00 206.50 564.00 790.00 1002.50 6197.50
1948 1212.50 1071.00 880.50 679.00 418.00 109.00 102.50 95.00 296.00 639.50 858.50 1318.00 7679.50
1949 1703.50 1101.00 875.23 a 512.50 270.00 193.50 100.00 89.50 207.50 647.50 735.50 1098.50 7534.23
1950 1761.50 1084.50 951.00 709.00 444.00 210.50 52.50 28.50 213.50 629.50 903.00 1000.50 7988.00
1951 1249.50 1021.50 988.00 569.00 357.00 118.00 49.00 61.50 231.50 613.50 944.50 1284.50 7487.50
1952 1445.00 1053.50 894.50 576.50 376.50 246.50 66.00 89.50 180.50 464.50 987.00 1060.00 7440.00
1953 947.50 819.00 797.00 634.50 444.50 299.50 28.93 a 57.35 a 222.93 a 488.00 785.00 917.50 6441.71
1954 1193.50 921.50 913.00 625.00 364.50 267.50 62.00 103.00 224.00 625.50 0.00 z 0.00 z 5299.50
1955 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
1956 0.00 z 0.00 z 0.00 z 544.50 315.00 289.00 38.00 79.00 273.50 616.68 c 939.50 1054.00 4149.18
1957 1530.50 995.00 840.50 541.50 202.50 156.00 105.00 115.50 166.50 590.50 832.50 925.00 7001.00
1958 1022.50 726.00 847.50 642.00 198.50 83.00 4.00 5.50 256.00 499.00 899.50 968.50 6152.00
1959 1092.50 924.00 812.00 581.50 460.00 203.00 85.00 127.50 0.00 z 173.00 t 892.00 1045.00 6222.50
1960 1212.50 925.00 839.50 590.00 464.00 161.00 11.50 141.50 250.00 513.50 882.50 1160.00 7151.00
1961 1074.50 785.00 795.50 595.50 422.50 123.50 39.00 4.00 318.50 622.50 1017.50 1103.00 6901.00
1962 1152.00 857.00 888.00 503.00 486.00 181.50 108.00 91.00 209.00 547.50 783.50 933.50 6740.00
1963 1171.50 737.00 758.50 637.00 398.00 213.50 98.00 71.00 147.93 a 502.50 819.00 1162.00 6715.93
1964 1054.00 864.00 837.00 652.00 459.50 223.50 96.00 165.50 310.00 551.50 911.90 a 1228.50 7353.40
1965 1093.27 a 810.50 830.50 526.00 447.50 172.00 56.00 88.00 303.50 487.00 730.00 1101.00 6645.27
1966 1194.50 883.50 861.00 573.00 324.00 248.79 a 81.50 68.00 130.00 577.50 754.50 935.68 a 6631.98
1967 929.00 722.50 827.00 697.50 358.50 99.00 14.00 0.50 108.00 544.50 843.00 1076.50 6220.00
1968 1112.00 870.50 706.50 622.00 374.50 191.00 50.00 133.50 237.93 a 670.00 854.48 a 1191.43 a 7013.85
1969 1449.00 1000.74 a 0.00 z 0.00 z 312.50 109.00 102.00 141.00 264.00 662.50 807.50 1096.00 5944.24
1970 1228.00 861.50 842.50 725.00 430.00 158.50 72.00 76.00 378.50 698.00 911.00 1229.00 7610.00
1971 1116.00 904.00 1015.50 685.00 358.50 311.50 105.00 39.00 398.50 638.00 851.50 1141.50 7564.00
1972 1221.00 1062.00 831.50 713.50 355.00 202.00 85.50 56.50 398.00 593.50 801.50 1285.50 7605.50
1973 1259.50 908.00 782.50 576.50 388.00 228.50 74.00 98.50 271.00 595.50 978.00 985.00 7145.00
1974 1299.50 806.50 852.00 634.00 497.00 174.50 96.00 58.50 230.50 583.00 819.00 979.00 7029.50
1975 1127.00 1013.00 931.00 727.50 426.00 225.50 41.50 138.00 246.50 608.00 947.00 1055.50 7486.50
1976 1073.00 988.50 956.00 647.50 420.50 301.00 102.50 131.00 208.00 602.50 848.50 1042.50 7321.50
1977 1282.50 832.50 833.50 529.50 498.50 106.00 117.00 76.00 344.00 668.00 973.00 1116.50 7377.00
1978 1078.50 864.00 741.00 605.00 445.00 158.50 65.50 121.00 319.00 582.00 1004.00 1228.00 7211.50
1979 1568.00 1014.50 788.50 597.50 324.50 162.00 47.03 b 14.00 132.50 414.00 961.00 961.00 6984.53
1980 1435.50 952.50 815.30 a 472.00 322.40 a 210.50 60.50 149.50 195.50 546.63 a 824.50 1044.00 7028.83
1981 915.00 873.00 719.50 583.50 402.50 265.00 110.50 41.50 237.00 599.00 803.00 1093.50 6643.00
1982 1132.50 968.50 813.00 710.00 417.50 116.50 78.00 58.50 230.00 578.50 989.00 1204.00 7296.00
1983 966.50 804.50 710.50 591.00 313.00 193.50 120.50 26.50 331.00 567.00 815.50 1418.50 6858.00
1984 1071.50 851.00 714.50 669.00 508.50 249.50 59.50 71.50 360.00 688.50 942.00 1375.00 7560.50
1985 1330.00 1066.50 864.50 601.50 371.00 196.50 14.31 e 104.00 386.50 611.00 1260.00 0.00 z 6805.81
1986 1080.00 988.00 713.52 a 644.00 417.50 120.00 145.00 9.50 342.00 535.50 835.00 1166.50 6996.52
1987 1190.00 852.44 a 791.00 511.50 339.00 166.00 93.50 74.50 g 185.50 516.00 745.50 1167.00 6557.44
1988 1137.50 824.00 776.00 530.00 383.50 216.50 71.00 56.50 262.00 367.50 821.50 1103.00 6549.00
1989 1009.50 1155.50 874.50 494.50 372.00 109.50 78.00 81.00 217.50 0.00 z 738.50 958.50 6089.00
1990 978.00 952.50 724.00 476.00 410.50 183.00 31.50 73.50 88.00 617.00 759.50 1318.00 6611.50
1991 1116.50 722.50 840.00 590.50 403.00 241.00 17.50 37.50 126.00 547.00 828.00 953.00 6422.50
1992 990.00 774.00 615.50 509.50 242.50 82.00 48.50 72.00 260.00 509.00 860.00 1192.00 6155.00
1993 1347.00 1031.00 863.50 603.00 230.00 208.50 161.00 91.00 214.50 461.00 974.00 1085.00 7269.50
1994 861.00 974.00 737.50 477.00 304.50 216.00 42.00 51.50 125.00 584.00 969.50 1156.50 6498.50
1995 1135.50 824.50 788.00 612.50 298.50 195.50 36.50 153.00 167.00 619.50 777.50 1097.00 6705.00
1996 1181.00 1098.50 782.00 565.50 497.00 206.50 56.00 62.50 274.50 586.00 908.00 1230.50 7448.00
1997 1114.50 887.00 822.00 639.50 333.50 212.00 55.50 42.00 191.00 601.00 794.00 1049.00 6741.00
1998 1106.00 801.00 746.50 566.50 349.00 158.50 12.00 43.50 107.00 578.00 788.00 1133.00 6389.00
1999 973.50 874.00 844.00 631.00 484.00 260.17 a 97.50 45.50 269.00 604.50 a 760.50 962.00 6805.67
2000 1117.50 916.61 a 786.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 272.00 593.13 a 1021.50 1213.02 d 5919.76
2001 1099.50 967.50 765.00 622.24 a 353.40 a 242.00 40.00 5.50 g 145.50 598.50 801.72 a 1072.00 6707.37
2002 1037.00 0.00 z 884.50 581.00 443.00 138.00 9.50 i 54.00 239.50 0.00 z 860.50 998.50 5236.00
2003 991.50 822.00 734.00 608.00 370.00 0.00 z 0.00 z 0.00 z 0.00 z 435.50 0.00 z 0.00 z 3961.00
2004 0.00 z 0.00 z 0.00 z 0.00 z 387.00 123.00 20.50 44.50 0.00 z 0.00 z 0.00 z 0.00 z 575.00
2005 0.00 z 877.00 688.00 555.50 0.00 z 0.00 z 0.00 z 0.00 z 231.50 516.50 0.00 z 0.00 z 2868.50
2006 0.00 z 0.00 z 877.00 0.00 z 0.00 z 0.00 z 31.50 0.00 z 0.00 z 589.60 e 917.00 0.00 z 2415.10
2007 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 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 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 707.50 864.50 1310.00 2882.00
2010 1012.00 808.00 792.00 630.00 472.00 233.50 80.00 77.50 250.00 560.00 958.50 1135.50 7009.00
2011 1126.50 982.50 917.00 736.50 495.00 240.00 120.50 31.00 213.00 602.50 1000.00 1142.50 7607.00
2012 1213.00 972.50 897.00 576.50 412.00 285.00 51.50 49.00 217.50 601.00 825.00 1092.00 7192.00
2013 1269.50 825.50 822.50 16.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 45.00 z 2917.50
Period of Record Statistics
MEAN 1169.55 934.40 816.01 593.17 392.04 202.65 67.97 79.63 251.22 558.98 861.80 1102.63 7066.24
S.D. 176.73 115.90 85.95 75.22 79.03 64.49 38.84 45.83 76.21 71.66 91.25 124.05 478.73
SKEW 1.11 0.68 0.09 -0.17 -0.40 0.08 0.57 1.08 0.04 -0.21 0.73 0.52 -0.11
MAX 1761.50 1384.50 1053.00 736.50 571.00 356.50 175.00 272.50 404.00 707.50 1260.00 1419.00 8194.50
MIN 861.00 722.50 615.50 395.00 177.50 71.50 4.00 0.50 88.00 367.50 672.50 865.62 5960.50
NO YRS 104 104 108 105 106 104 105 104 104 106 107 101 84