COEUR D ALENE, IDAHO

Monthly Total Heating Degree Days

(101956)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1895 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 386.00 473.50 805.50 1064.50 2729.50
1896 1069.00 820.50 891.00 670.00 520.50 178.00 21.50 51.50 231.21 a 476.50 1001.00 896.50 6827.21
1897 1121.50 939.50 1060.00 540.00 197.00 172.00 113.15 a 29.50 259.50 522.00 873.00 1081.00 6908.15
1898 1167.50 841.56 a 975.00 528.50 235.00 129.50 74.00 37.00 0.00 z 0.00 z 0.00 z 0.00 z 3988.06
1899 0.00 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
1900 973.00 1009.50 770.50 473.50 344.00 129.50 48.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3748.50
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1902 0.00 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
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 285.00 0.00 z 0.00 z 285.00
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 1071.00 1071.00
1909 1276.17 a 834.50 714.00 610.00 346.50 95.56 c 55.69 d 31.57 d 166.15 d 0.00 z 0.00 z 0.00 z 4130.14
1910 0.00 z 0.00 z 0.00 z 0.00 z 141.00 k 140.89 b 8.27 a 79.00 109.00 j 0.00 z 0.00 z 0.00 z 228.16
1911 806.00 h 997.50 d 0.00 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 997.50
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 246.00 95.50 58.00 0.00 z 154.50 545.50 0.00 z 0.00 z 1099.50
1914 920.00 927.50 714.00 475.50 210.50 212.50 4.00 19.50 241.00 460.35 a 0.00 z 0.00 z 4184.85
1915 1182.50 808.00 671.00 391.50 334.00 175.50 57.00 0.00 251.50 452.00 856.50 1045.50 6225.00
1916 1540.00 943.50 796.00 555.50 455.50 209.50 62.00 43.00 223.00 562.00 927.50 1271.00 7588.50
1917 1167.50 991.00 1076.50 677.50 349.50 184.00 18.00 5.00 102.00 471.20 a 675.00 819.50 6536.70
1918 992.50 939.00 723.00 495.00 363.50 67.00 21.00 92.50 79.50 378.00 793.00 984.00 5928.00
1919 1016.00 954.00 818.50 477.00 351.50 148.00 7.00 24.50 201.67 c 622.00 925.00 1273.00 6818.17
1920 1132.65 d 1003.40 d 833.50 644.50 429.50 213.00 13.50 88.50 287.00 594.50 838.50 989.50 7068.05
1921 1060.00 908.00 821.50 651.00 317.50 87.00 45.00 52.50 415.00 522.50 872.00 1169.50 6921.50
1922 1333.00 1160.50 966.00 675.00 389.00 45.00 13.50 43.50 188.50 500.50 961.00 1313.50 7589.00
1923 1033.50 1166.00 873.00 569.00 373.00 181.50 19.50 42.00 175.50 530.50 793.50 1029.50 6786.50
1924 1290.00 769.00 843.50 574.50 193.00 176.00 70.00 98.50 229.00 543.00 896.50 1287.00 6970.00
1925 1036.00 751.00 776.00 454.00 199.00 126.00 0.00 71.00 169.50 613.50 842.50 901.00 5939.50
1926 1091.00 782.00 695.00 404.50 303.50 137.00 5.50 46.50 376.50 494.50 767.50 1099.00 6202.50
1927 1190.00 890.00 833.00 616.00 447.00 106.50 36.50 33.50 283.50 484.00 823.00 1373.50 7116.50
1928 1190.00 1030.00 774.00 639.50 226.50 133.00 33.58 a 40.50 197.00 537.00 867.50 1147.50 6816.08
1929 1525.50 1288.00 815.50 663.50 351.50 155.50 32.00 11.50 272.50 489.00 947.50 924.50 7476.50
1930 1582.50 809.00 808.00 409.50 380.50 208.50 6.95 b 20.00 173.00 617.93 a 870.50 1144.00 7030.38
1931 998.50 888.50 811.17 a 569.00 250.00 116.79 b 24.50 32.00 227.00 537.00 969.50 1169.00 6592.95
1932 1227.50 1129.50 955.00 560.00 362.50 129.00 44.00 57.87 a 218.57 b 534.50 728.00 1240.50 7186.94
1933 1103.50 1248.50 892.50 611.00 481.50 141.50 29.97 a 58.38 a 306.43 b 473.00 758.50 887.00 6991.78
1934 899.00 795.50 638.50 327.50 241.50 111.00 34.00 23.25 c 299.00 483.50 677.50 1001.00 5531.25
1935 1151.50 907.50 912.00 692.00 360.50 144.50 67.54 c 64.00 124.00 539.00 996.50 1048.12 b 7007.16
1936 1056.00 1485.00 870.00 505.00 197.00 117.00 6.00 24.00 227.50 446.00 972.00 974.12 e 6879.62
1937 1747.00 1152.50 851.00 654.50 317.00 140.50 9.50 51.67 a 171.00 422.00 759.50 981.15 a 7257.32
1938 1061.50 969.00 806.50 542.00 315.00 106.00 14.00 47.00 74.50 445.00 916.50 1008.53 a 6305.53
1939 965.00 1071.00 822.00 489.00 255.00 235.80 e 60.50 27.50 182.50 540.00 790.00 931.50 6369.80
1940 1159.00 875.00 689.00 479.50 234.50 78.00 13.00 10.00 115.00 401.50 978.50 1006.50 6039.50
1941 1058.00 806.00 647.50 447.00 301.50 162.50 2.07 a 58.50 307.50 564.64 c 766.00 1000.50 6121.71
1942 1298.50 976.00 825.00 343.50 i 383.37 a 213.00 14.00 50.63 a 136.50 451.00 882.50 1008.00 6238.50
1943 1268.00 913.00 1009.00 499.00 430.50 249.00 39.00 17.50 106.50 418.50 a 756.00 1082.93 a 6788.93
1944 1106.00 981.00 917.00 527.50 290.50 117.50 37.00 34.50 153.50 431.00 846.00 1128.00 6569.50
1945 976.00 850.00 853.50 630.00 283.00 158.50 15.00 24.50 288.00 451.50 827.50 1070.00 6427.50
1946 1043.00 879.50 751.00 527.00 306.50 212.50 20.50 20.00 212.50 365.50 p 917.50 1007.00 5897.00
1947 1229.50 854.00 728.00 522.00 213.00 177.50 15.00 35.50 306.00 469.00 888.50 975.00 6413.00
1948 1128.00 1017.00 913.50 637.50 343.00 49.00 49.50 25.00 227.50 591.50 867.41 a 1244.50 7093.41
1949 1668.50 1067.50 880.50 467.00 240.00 119.50 29.00 23.50 171.21 a 654.00 718.97 a 1053.50 7093.17
1950 1584.50 975.00 911.00 632.00 380.00 141.50 17.00 5.00 171.00 566.00 828.50 895.50 7107.00
1951 1098.50 910.00 977.50 532.50 310.00 187.00 48.00 45.00 181.07 b 568.33 a 858.00 1214.00 6929.90
1952 1209.50 973.00 903.50 397.00 h 264.00 139.00 29.97 a 26.00 101.79 b 385.50 902.00 1019.00 5953.25
1953 798.80 c 811.00 777.67 b 583.33 c 354.50 210.00 10.50 24.00 144.83 a 423.50 718.97 a 915.00 5772.10
1954 1122.50 816.50 893.83 a 625.00 320.50 223.50 29.00 70.55 b 203.89 c 428.00 k 665.50 1043.50 6014.27
1955 1109.50 997.50 1051.00 701.50 432.50 129.00 82.50 10.00 202.50 455.00 969.44 c 1098.50 7238.94
1956 1065.00 1128.50 898.50 448.50 253.50 158.50 29.00 58.00 100.00 g 387.00 h 889.00 981.00 5909.50
1957 1426.00 999.00 876.50 557.00 198.50 135.50 38.00 50.00 114.50 569.50 859.50 888.31 b 6712.31
1958 1001.00 712.00 794.00 555.56 c 136.00 63.00 11.00 8.00 197.50 448.31 e 836.11 c 952.00 5714.47
1959 1067.50 922.50 788.00 519.00 445.88 a 113.00 39.00 43.00 230.00 542.50 b 953.50 1021.00 6684.88
1960 1261.81 d 982.00 840.00 580.50 391.50 100.50 3.00 91.50 142.50 311.00 h 566.50 i 1112.26 b 5505.57
1961 1001.00 770.50 795.00 599.46 b 310.00 38.00 3.50 0.00 247.00 370.50 i 923.89 c 1098.50 5786.85
1962 1274.21 b 915.00 967.00 492.00 395.00 137.50 50.50 48.00 114.64 b 340.50 i 767.88 d 917.00 6078.73
1963 1335.00 803.50 799.05 b 592.50 308.00 113.00 25.50 14.98 a 56.00 377.88 b 746.50 1101.00 6272.91
1964 1015.50 932.50 919.00 637.50 356.50 115.00 22.00 93.00 249.50 481.50 854.50 1165.00 6841.50
1965 1012.50 895.50 972.00 547.50 377.00 142.50 18.50 55.00 321.00 371.00 750.00 988.00 6450.50
1966 1061.50 909.00 847.50 584.50 260.00 189.50 25.00 28.50 63.50 461.50 787.50 933.00 6151.00
1967 932.50 791.50 838.50 650.00 335.50 82.50 4.00 0.00 38.50 447.00 798.00 1085.00 6003.00
1968 1100.50 790.50 714.00 656.00 374.00 132.50 14.50 64.00 157.00 544.00 833.50 1177.00 6557.50
1969 1386.00 989.00 895.00 506.00 215.50 98.00 44.50 30.00 147.50 581.50 736.61 b 1013.00 6642.61
1970 1386.50 773.00 814.50 675.50 280.00 94.00 4.50 1.50 298.00 541.00 780.50 1046.50 6695.50
1971 1002.00 837.00 881.50 565.50 272.00 194.00 55.00 8.50 278.00 568.00 823.00 1115.50 6600.00
1972 1192.50 916.00 701.50 653.50 272.00 122.50 39.50 11.00 266.50 484.00 753.50 1098.12 e 6510.62
1973 1148.00 837.50 752.50 540.00 273.00 131.50 14.50 16.50 151.00 471.50 897.00 921.00 6154.00
1974 1175.00 787.50 794.50 548.50 444.00 89.00 38.00 17.50 122.50 427.50 740.00 948.00 6132.00
1975 1117.50 982.00 892.50 671.50 385.00 186.50 8.27 a 67.50 146.00 499.50 836.00 964.00 6756.27
1976 976.50 894.50 907.50 574.00 275.50 207.00 21.50 59.50 92.50 472.00 778.00 987.00 6245.50
1977 1178.00 789.50 826.50 419.00 366.50 47.00 38.50 47.00 238.00 503.50 859.00 1055.00 6367.50
1978 1037.00 816.00 704.00 526.50 385.00 86.50 35.00 90.50 211.00 476.00 912.50 1202.50 6482.50
1979 1485.50 923.00 747.50 564.50 313.00 129.00 37.50 8.50 87.00 407.00 902.50 893.00 6498.00
1980 1238.00 852.00 826.00 412.50 266.50 173.50 39.00 75.50 144.50 447.50 773.89 c 899.00 6147.89
1981 925.50 804.00 656.00 530.00 358.00 233.00 52.50 4.00 170.00 552.00 735.00 1016.00 6036.00
1982 1097.00 935.00 762.50 656.50 357.50 91.50 68.00 15.50 184.00 536.00 873.00 1030.50 6607.00
1983 885.50 725.00 648.00 543.00 291.00 128.50 82.00 6.50 254.00 455.50 742.00 1322.00 6083.00
1984 1034.50 845.50 725.00 572.00 426.50 182.00 24.50 14.00 262.00 586.50 810.00 1180.00 6662.50
1985 1192.50 1031.50 845.00 475.00 241.00 106.00 0.00 48.00 320.00 540.00 1130.00 1226.00 7155.00
1986 1005.00 873.50 614.00 543.50 324.00 39.50 48.50 0.00 a 0.00 z 0.00 z 0.00 z 0.00 z 3448.00
1987 0.00 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
1988 0.00 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
1989 0.00 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
1990 0.00 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
1991 0.00 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
1992 0.00 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
1993 0.00 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
1994 0.00 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
1995 0.00 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 707.07 a 1031.50 1738.57
1996 1152.50 1019.00 0.00 z 543.50 425.50 124.00 27.50 44.00 255.50 570.00 896.50 1153.72 a 6211.72
1997 1120.00 909.00 819.00 619.50 260.50 123.50 28.00 18.00 127.00 529.58 a 799.00 1060.50 6413.58
1998 1050.00 778.00 0.00 z 200.00 o 295.50 122.50 0.00 18.00 88.50 519.00 699.00 1047.50 4618.00
1999 961.00 822.00 776.00 608.50 425.73 a 194.00 76.00 24.00 189.00 505.50 680.00 951.00 6212.73
2000 1044.00 891.50 779.50 491.00 341.00 145.50 47.50 24.00 254.50 526.00 997.00 1143.79 b 6685.29
2001 1049.50 963.50 766.00 630.00 314.00 204.50 27.50 15.50 81.00 532.00 684.81 d 1016.50 6284.81
2002 1011.50 888.50 960.50 579.00 414.50 134.50 23.00 30.00 165.00 590.00 773.00 902.50 6472.00
2003 903.50 832.50 728.50 552.50 369.00 90.00 6.00 5.00 158.50 373.00 933.00 1025.00 5976.50
2004 1104.00 0.00 z 652.50 0.00 z 328.50 146.00 18.50 36.50 202.00 482.50 814.50 937.00 4722.00
2005 1091.50 827.00 710.00 509.00 274.50 0.00 z 19.50 29.50 207.50 472.50 0.00 z 1178.50 5319.50
2006 871.50 0.00 z 0.00 z 0.00 z 318.00 96.00 5.50 27.00 186.00 495.00 807.50 1043.50 3850.00
2007 0.00 z 865.50 732.00 570.50 302.50 157.50 5.00 29.50 176.50 532.50 824.50 1038.00 5234.00
2008 1174.50 907.50 865.62 e 708.50 337.50 212.50 14.50 f 51.50 181.50 541.00 749.50 1247.00 6976.62
2009 1111.50 914.00 953.25 e 601.15 d 295.00 g 108.46 d 25.00 22.50 f 110.50 651.00 784.50 802.50 k 5259.37
2010 945.50 d 760.08 d 729.00 589.00 426.50 203.00 52.00 36.50 180.50 464.00 877.00 1033.50 6296.58
2011 1043.00 1012.00 846.00 713.50 415.00 210.00 56.00 6.00 106.07 b 475.50 863.50 1025.50 6772.07
2012 1030.00 906.00 822.00 531.00 358.00 208.00 20.50 18.00 80.56 c 487.22 a 747.00 957.00 6165.27
2013 1137.50 835.50 774.48 a 24.50 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 2747.48
Period of Record Statistics
MEAN 1134.47 917.97 822.51 562.22 325.52 142.24 30.60 35.27 193.30 499.60 833.51 1054.51 6579.84
S.D. 176.93 127.03 99.29 80.16 75.21 48.96 22.37 24.57 77.04 67.49 89.60 115.37 444.81
SKEW 1.24 1.47 0.23 -0.32 0.01 0.03 0.92 0.71 0.39 -0.21 0.39 0.57 0.07
MAX 1747.00 1485.00 1076.50 713.50 520.50 249.00 113.15 98.50 415.00 654.00 1130.00 1373.50 7589.00
MIN 798.80 712.00 614.00 327.50 136.00 38.00 0.00 0.00 38.50 285.00 665.50 819.50 5531.25
NO YRS 95 95 93 90 95 96 96 94 93 88 90 92 74