BELLINGHAM 2 N, WASHINGTON

Monthly Total Heating Degree Days

(450564)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 198504
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
1915 793.00 604.00 527.00 418.50 288.00 159.00 71.00 48.00 213.00 416.50 700.00 767.50 5005.50
1916 1222.50 794.00 665.50 481.00 403.00 209.50 156.50 53.00 m 252.00 558.00 729.50 969.00 6440.50
1917 917.50 810.00 756.50 531.00 387.00 273.62 a 128.00 93.00 219.00 484.00 519.50 809.00 5928.12
1918 0.00 z 753.00 682.50 508.50 411.00 200.50 117.00 136.50 222.50 438.50 649.50 798.50 4918.00
1919 790.00 761.00 686.00 511.00 393.50 310.50 184.50 145.50 276.00 618.00 716.50 865.00 6257.50
1920 909.00 771.00 695.00 610.50 495.45 c 236.67 c 96.00 109.00 268.00 520.00 603.50 731.00 6045.11
1921 823.50 673.50 704.00 587.50 431.00 227.50 197.50 150.00 334.50 455.50 673.50 960.50 6218.50
1922 0.00 z 0.00 z 0.00 z 661.50 0.00 z 192.00 146.00 122.50 237.50 0.00 z 0.00 z 0.00 z 1359.50
1923 0.00 z 0.00 z 708.00 480.00 0.00 z 0.00 z 86.00 78.50 255.50 0.00 z 0.00 z 770.50 2378.50
1924 851.00 575.00 719.00 569.50 0.00 z 231.00 0.00 z 120.50 0.00 z 407.00 692.00 0.00 z 4165.00
1925 775.00 587.50 684.50 501.00 323.50 226.50 134.00 160.50 244.50 552.00 651.50 663.00 5503.50
1926 824.00 585.00 611.00 388.50 358.00 189.50 142.00 170.00 346.50 437.50 575.00 0.00 z 4627.00
1927 885.00 692.00 694.50 593.50 460.00 174.00 130.00 133.00 265.00 474.00 667.50 1029.00 6197.50
1928 764.00 724.00 622.50 516.00 290.50 213.50 96.62 a 181.50 332.00 504.50 634.00 820.00 5699.12
1929 0.00 z 0.00 z 644.00 607.50 409.20 a 235.00 154.00 140.00 277.00 427.28 a 732.50 830.00 4456.48
1930 1222.00 646.15 b 676.00 449.50 435.50 261.00 189.00 141.50 258.50 556.50 703.50 779.00 6318.15
1931 648.00 676.50 617.00 463.50 323.50 205.50 138.00 173.00 277.00 468.50 770.00 0.00 z 4760.50
1932 926.00 779.50 641.50 521.00 419.00 216.00 239.50 163.50 263.00 455.50 527.00 905.50 6057.00
1933 842.00 849.00 658.00 576.50 458.50 289.50 220.00 99.00 330.00 471.50 611.50 724.00 6129.50
1934 703.50 611.00 587.50 386.00 365.50 230.50 173.00 136.50 291.00 430.00 519.00 776.00 5209.50
1935 886.50 626.50 753.50 586.50 428.00 234.50 169.00 149.00 232.00 532.00 738.00 692.50 6028.00
1936 774.00 1032.00 738.50 480.00 302.50 160.00 135.37 a 141.00 311.00 426.00 693.50 750.50 5944.37
1937 1245.50 779.13 e 573.00 546.00 401.00 206.00 135.50 16.00 z 255.50 386.50 612.00 768.00 5908.13
1938 826.00 708.00 696.00 493.50 261.50 m 150.00 f 137.00 204.00 188.00 444.00 741.50 811.00 5249.00
1939 724.50 804.00 686.50 491.50 385.00 304.66 a 147.50 129.00 295.00 484.50 490.00 424.50 h 4942.16
1940 769.50 640.00 582.50 435.00 317.00 168.50 155.00 127.50 123.50 h 0.00 z 496.00 k 726.00 3921.00
1941 735.50 621.50 537.00 444.50 368.50 241.00 93.50 150.50 297.50 444.00 589.00 775.00 5297.50
1942 867.00 693.00 643.50 489.50 374.00 247.00 105.50 86.00 278.50 405.50 690.00 748.00 5627.50
1943 1081.00 635.00 753.50 456.50 470.00 281.00 166.00 170.00 219.50 0.00 z 621.50 861.00 5715.00
1944 0.00 z 715.00 714.00 504.50 411.50 223.00 105.50 141.00 205.50 416.00 611.50 880.00 4927.50
1945 762.00 646.00 690.00 606.50 314.00 262.00 121.50 157.50 318.00 468.50 722.50 823.50 5892.00
1946 756.50 645.50 654.00 531.50 319.00 219.50 136.50 133.00 245.50 552.50 772.00 843.00 5808.50
1947 964.00 640.50 623.50 454.00 308.00 198.00 125.50 164.00 241.00 451.00 708.00 767.50 5645.00
1948 838.50 795.00 723.50 560.00 397.50 142.00 149.50 150.00 279.50 531.00 691.00 977.00 6234.50
1949 1126.00 848.00 669.00 521.50 354.00 260.00 182.50 163.50 230.00 583.50 489.00 883.00 6310.00
1950 1369.50 714.00 701.50 562.00 449.50 189.00 117.00 136.00 272.50 483.00 685.00 638.00 6317.00
1951 885.00 750.50 846.00 541.00 365.50 196.00 127.00 173.00 252.00 488.00 673.00 950.50 6247.50
1952 936.50 722.50 690.00 534.00 367.00 286.50 148.50 131.50 202.00 414.50 730.00 733.50 5896.50
1953 654.50 677.00 668.57 a 498.50 316.00 262.00 113.50 85.00 225.50 412.00 508.00 701.12 a 5121.68
1954 986.50 641.00 763.50 599.00 379.50 291.00 208.50 160.00 232.00 485.50 489.00 732.50 5968.00
1955 812.50 771.00 833.00 624.50 479.00 257.00 203.00 198.50 289.00 474.50 842.50 892.50 6677.00
1956 839.50 864.50 754.00 501.00 311.50 248.50 112.00 146.00 236.90 a 502.50 712.50 795.50 6024.40
1957 1129.00 789.50 657.00 482.50 255.50 161.00 161.50 150.50 146.00 473.50 689.00 681.00 5776.00
1958 680.00 504.50 658.00 488.50 208.50 64.00 13.50 56.00 212.00 443.50 700.00 721.00 4749.50
1959 815.00 716.00 661.50 498.62 a 356.00 154.00 76.00 158.00 246.50 476.00 715.00 793.50 5666.12
1960 865.50 696.50 685.00 465.50 365.00 192.00 78.50 140.50 265.50 411.00 658.50 837.50 5661.00
1961 732.00 564.50 597.50 509.00 297.00 133.50 61.00 41.00 291.50 520.50 747.50 812.50 5307.50
1962 854.50 648.00 757.50 476.00 424.00 224.00 142.00 131.00 230.00 408.50 570.00 721.50 5587.00
1963 1013.50 571.00 659.50 510.00 336.50 193.39 b 133.50 75.50 143.50 378.50 611.50 775.50 5401.89
1964 727.50 720.00 690.00 576.50 409.00 196.00 125.50 138.00 272.50 451.00 732.50 960.50 5999.00
1965 880.00 675.00 721.50 493.50 435.50 205.50 79.50 93.50 279.00 392.00 570.50 824.00 5649.50
1966 833.00 681.50 659.00 519.00 392.00 218.50 148.50 111.50 160.00 489.50 618.50 652.00 5483.00
1967 746.50 648.00 719.50 577.50 346.50 120.00 73.50 34.00 146.00 369.00 615.00 777.50 5173.00
1968 788.00 626.50 563.50 548.00 334.00 210.00 73.00 188.50 236.50 452.00 597.00 944.50 5561.50
1969 1151.50 715.00 664.00 524.50 285.00 95.00 120.50 160.00 184.00 485.50 585.50 727.50 5698.00
1970 853.50 579.50 644.50 543.50 368.50 146.00 93.00 103.50 290.00 508.00 644.50 840.00 5614.50
1971 872.00 676.00 757.50 528.00 343.00 281.00 110.00 40.00 256.00 492.00 598.50 919.50 5873.50
1972 943.50 701.50 595.50 587.50 268.50 226.00 111.00 87.00 342.50 553.00 635.00 909.00 5960.00
1973 844.50 662.00 646.00 525.50 302.00 191.50 118.50 166.00 162.50 467.00 742.00 686.50 5514.00
1974 809.00 632.50 652.00 472.00 457.50 191.50 161.50 111.50 127.50 450.50 606.00 693.00 5364.50
1975 857.00 754.50 729.50 593.00 381.09 b 237.00 83.00 143.00 198.50 417.00 633.62 a 775.00 5802.21
1976 747.50 709.98 a 767.00 508.50 353.00 270.50 84.50 138.50 169.00 434.00 634.50 696.00 5512.98
1977 926.50 564.50 672.50 458.00 384.50 173.00 130.50 71.50 272.00 464.00 688.50 834.50 5640.00
1978 815.00 607.00 589.00 472.50 362.50 115.00 63.50 68.00 231.50 401.50 785.50 890.00 5401.00
1979 1054.50 711.50 592.00 494.00 301.50 193.00 78.50 66.50 137.00 382.50 697.00 666.50 5374.50
1980 975.50 621.00 662.50 406.00 317.00 216.50 83.00 127.00 193.00 385.50 583.50 735.73 a 5306.23
1981 679.50 625.00 550.50 478.50 305.00 224.50 85.50 49.50 168.00 464.00 528.00 754.50 4912.50
1982 861.00 662.00 670.50 546.50 336.50 109.00 100.50 94.50 161.50 0.00 z 730.50 764.50 5037.00
1983 640.00 538.50 515.00 470.00 247.00 162.00 94.50 39.00 249.00 473.00 541.50 999.50 4969.00
1984 744.50 603.00 551.00 483.50 372.50 198.50 0.00 z 94.50 245.50 513.50 656.50 992.50 5455.50
1985 974.50 760.00 722.00 508.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2965.00
Period of Record Statistics
MEAN 871.98 688.62 669.79 515.04 363.86 209.71 126.14 124.65 242.43 464.86 650.76 805.11 5714.19
S.D. 151.72 89.78 67.61 56.40 60.42 51.05 42.19 41.75 52.58 53.54 79.70 95.58 413.95
SKEW 1.15 0.84 -0.06 0.14 -0.04 -0.40 0.27 -0.51 -0.25 0.50 -0.22 0.48 -0.14
MAX 1369.50 1032.00 846.00 661.50 495.45 310.50 239.50 204.00 346.50 618.00 842.50 1029.00 6677.00
MIN 640.00 504.50 515.00 386.00 208.50 64.00 13.50 34.00 127.50 369.00 489.00 638.00 4749.50
NO YRS 66 68 70 71 66 68 68 68 68 65 67 65 54