CLEARBROOK, WASHINGTON

Monthly Total Heating Degree Days

(451484)

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
1903 0.00 z 0.00 z 782.00 534.50 392.50 137.00 157.00 157.00 285.50 452.50 712.00 810.50 4420.50
1904 879.50 895.50 766.50 393.00 400.50 260.89 b 114.50 164.00 235.50 429.50 520.50 778.00 5837.89
1905 912.50 754.50 546.50 438.50 374.50 188.00 89.50 175.00 241.50 643.50 723.00 800.50 5887.50
1906 845.00 664.50 653.58 a 441.00 365.00 248.50 42.00 118.83 a 267.00 442.00 732.50 847.00 5666.92
1907 1294.50 828.00 773.00 557.50 321.00 224.50 135.50 171.50 231.00 412.00 576.00 804.50 6329.00
1908 555.00 k 806.50 727.97 b 485.50 421.00 118.50 p 142.00 219.50 339.50 512.50 607.50 967.00 5228.97
1909 438.50 p 754.50 741.50 590.50 428.00 238.50 205.00 232.00 260.00 498.50 709.00 1031.50 5689.00
1910 960.50 914.50 607.00 542.00 318.00 279.00 216.50 225.50 252.00 496.50 738.50 806.50 6356.50
1911 1140.50 851.00 682.50 612.50 425.00 315.50 144.50 151.00 319.50 499.50 0.00 z 876.00 6017.50
1912 1014.50 685.00 727.50 561.00 300.00 221.00 143.00 175.00 281.50 529.50 628.00 846.50 6112.50
1913 1127.22 b 788.00 785.50 496.50 367.00 218.50 135.50 87.00 217.50 483.50 677.00 780.50 6163.72
1914 803.50 733.50 592.50 418.00 270.50 253.00 140.00 153.50 308.50 335.00 634.00 998.50 5640.50
1915 875.50 607.00 448.50 427.00 0.00 z 0.00 z 158.00 7.00 245.00 439.00 688.50 831.66 b 4727.16
1916 1307.00 898.00 675.91 c 464.00 386.00 301.50 306.00 70.50 m 238.50 495.50 715.50 990.00 6777.91
1917 986.50 937.50 878.50 644.00 0.00 z 235.00 31.50 15.50 k 333.50 507.00 627.50 1032.50 6213.50
1918 883.00 772.00 678.00 432.50 348.00 106.00 61.00 60.00 138.50 405.50 627.50 795.50 5307.50
1919 809.00 761.50 704.00 445.50 366.00 234.00 135.00 121.50 205.00 620.50 760.00 939.00 6101.00
1920 980.00 781.00 704.00 609.00 479.50 226.50 99.00 128.50 283.00 547.50 633.00 776.00 6247.00
1921 844.00 690.50 708.00 557.50 381.00 216.50 198.50 162.00 309.00 446.50 722.50 990.50 6226.50
1922 1018.50 887.00 757.50 603.50 399.50 212.00 153.00 158.00 269.50 450.50 760.00 1045.00 6714.00
1923 889.50 917.00 705.50 497.00 376.50 211.00 108.00 110.00 260.50 460.00 664.50 841.00 6040.50
1924 923.50 603.50 719.50 554.00 321.00 268.50 162.50 165.50 288.00 468.50 737.00 1043.00 6254.50
1925 850.00 628.00 672.50 479.50 275.50 241.00 79.00 165.00 249.50 567.50 696.00 697.50 5601.00
1926 850.00 600.50 567.50 396.00 329.00 196.50 112.00 133.50 361.00 437.88 c 627.00 896.00 5506.88
1927 948.37 d 689.00 678.00 485.50 345.00 157.50 101.50 109.00 256.50 429.50 729.50 1061.50 5990.87
1928 886.50 716.50 596.50 488.50 264.50 152.00 71.50 147.50 286.50 518.00 662.50 888.00 5678.50
1929 1134.00 919.00 670.38 c 601.00 372.50 227.00 163.00 126.50 244.00 425.00 741.50 921.00 6544.88
1930 1226.50 665.50 645.50 431.50 387.00 223.00 159.50 96.00 253.50 556.00 749.50 800.50 6194.00
1931 698.03 b 675.00 632.00 419.00 262.50 208.50 125.50 181.00 253.00 500.50 801.00 849.50 5605.53
1932 985.00 805.50 660.50 467.00 353.00 195.00 217.00 136.50 245.50 437.50 574.50 955.50 6032.50
1933 911.50 924.00 0.00 z 574.50 432.00 275.50 190.50 85.00 319.50 472.50 638.50 823.80 d 5647.30
1934 725.00 591.50 547.00 333.00 295.00 203.50 168.50 108.00 298.00 403.50 535.00 835.00 5043.00
1935 992.00 c 650.00 771.50 539.00 400.00 214.50 142.00 146.00 212.50 545.00 749.00 762.00 6123.50
1936 809.00 1094.75 a 777.50 450.00 269.50 131.00 120.00 109.50 253.50 407.00 712.00 780.50 5914.25
1937 1303.50 916.00 593.00 561.00 380.50 177.00 104.50 148.00 232.50 382.50 664.00 841.50 6304.00
1938 874.00 763.00 689.00 498.00 380.50 190.00 106.50 178.50 143.50 453.50 714.00 844.00 5834.50
1939 767.00 831.00 636.50 444.44 c 349.50 256.50 123.50 88.50 223.00 480.50 529.50 648.00 5377.94
1940 784.50 678.50 572.50 411.50 273.50 146.50 104.00 68.20 a 126.00 374.00 795.00 764.50 5098.70
1941 753.00 602.00 484.50 402.50 297.00 145.00 30.00 68.50 257.50 414.00 599.00 816.50 4869.50
1942 848.50 680.50 634.00 431.50 317.50 183.50 37.00 49.00 225.50 412.00 722.00 828.00 5369.00
1943 1177.50 647.00 737.00 448.00 401.50 198.50 98.50 133.00 193.00 440.20 a 629.00 861.00 5964.20
1944 815.00 745.00 701.00 478.00 328.00 208.50 91.00 129.50 175.50 353.50 622.00 871.50 5518.50
1945 786.00 673.00 704.00 564.50 289.50 215.00 121.00 133.00 302.50 466.50 730.00 845.00 5830.00
1946 807.00 666.50 651.50 524.50 270.00 178.00 88.00 108.00 216.00 563.00 821.50 862.50 5756.50
1947 1006.50 628.50 599.00 440.50 279.50 126.50 81.50 132.50 203.00 446.50 719.00 775.00 5438.00
1948 860.00 840.00 685.50 566.00 377.50 113.50 134.00 139.50 277.50 507.50 712.50 970.00 6183.50
1949 1113.50 878.00 682.50 512.00 340.00 250.00 173.50 127.00 215.50 611.50 483.50 936.00 6323.00
1950 1481.50 777.50 746.50 556.50 459.50 0.00 z 124.00 0.00 z 217.50 439.50 720.00 684.00 6206.50
1951 894.50 722.50 831.50 443.50 311.00 158.00 105.00 166.50 216.00 503.00 671.00 1027.00 6049.50
1952 1060.00 784.00 719.50 548.00 348.50 269.50 102.00 123.00 182.50 410.00 764.50 780.50 6092.00
1953 721.50 684.00 664.50 487.00 307.00 258.50 78.00 88.00 205.00 372.50 547.50 718.50 5132.00
1954 1088.00 667.50 739.87 a 620.50 359.00 246.00 172.50 162.00 224.50 469.00 551.50 751.00 6051.37
1955 857.50 783.50 827.00 591.00 448.00 227.50 193.50 156.00 280.00 485.00 887.00 934.50 6670.50
1956 913.50 926.50 733.50 443.50 294.50 233.50 92.00 98.00 245.50 509.00 719.50 840.00 6049.00
1957 1181.50 838.50 679.50 443.50 210.00 158.50 129.50 156.00 146.50 521.00 685.00 710.00 5859.50
1958 722.00 568.50 642.00 467.50 228.50 54.00 7.50 43.00 199.50 405.00 711.50 761.00 4810.00
1959 883.00 743.00 668.00 487.00 323.00 187.50 86.50 241.50 250.50 513.00 746.50 833.00 5962.50
1960 960.50 715.00 689.00 456.50 396.00 189.50 76.50 145.00 244.00 439.50 686.50 820.00 5818.00
1961 712.00 637.50 618.50 527.50 325.50 159.50 38.00 58.50 295.00 534.00 799.50 866.00 5571.50
1962 903.00 674.00 766.50 486.50 446.50 234.00 122.50 130.00 237.00 447.50 606.50 774.00 5828.00
1963 1058.50 554.50 672.50 501.00 341.00 195.00 108.50 71.50 107.00 395.50 652.00 821.50 5478.50
1964 767.50 728.50 676.00 569.50 431.50 210.00 133.50 113.50 277.50 414.00 784.50 1052.00 6158.00
1965 958.00 683.50 683.50 482.00 441.50 224.50 89.00 74.50 315.00 410.50 608.00 913.50 5883.50
1966 942.50 684.00 685.50 511.50 384.50 226.00 135.50 125.50 202.50 501.50 644.50 727.00 5770.50
1967 793.00 642.00 738.50 589.00 357.50 123.50 96.50 42.00 130.00 406.00 615.50 857.00 5390.50
1968 873.00 591.50 589.00 552.00 331.50 212.50 72.00 125.50 243.50 476.50 649.00 1034.50 5750.50
1969 1296.50 770.50 671.50 528.00 276.50 108.50 105.50 175.50 247.00 500.50 652.50 755.50 6088.00
1970 918.50 597.00 680.50 590.00 379.50 144.50 99.00 110.00 296.50 528.00 683.00 940.50 5967.00
1971 931.50 666.00 765.00 520.50 335.00 320.50 126.50 57.00 316.00 523.00 635.50 1005.00 6201.50
1972 1040.50 759.50 648.50 611.00 251.50 213.50 107.00 76.50 341.00 558.50 669.50 967.50 6244.50
1973 896.00 674.50 657.00 541.00 346.00 239.00 112.00 205.00 205.00 480.00 802.50 732.50 5890.50
1974 891.00 699.00 698.50 481.00 405.00 178.00 138.97 b 116.50 155.00 477.50 650.00 739.57 c 5630.04
1975 942.50 867.50 724.50 612.00 350.00 265.50 98.00 184.50 212.00 498.00 665.17 a 835.50 6255.17
1976 790.50 755.50 796.00 475.00 336.50 283.00 122.00 137.50 191.00 493.00 652.00 755.00 5787.00
1977 963.50 572.50 691.00 424.00 374.50 165.00 141.50 83.00 274.50 478.50 762.50 899.50 5830.00
1978 884.50 661.50 568.50 492.50 347.00 107.00 69.00 108.00 244.50 433.00 828.50 934.00 5678.00
1979 1129.50 771.50 598.50 498.50 325.50 198.50 88.50 94.00 157.00 422.00 733.00 709.50 5726.00
1980 1037.50 702.50 676.50 399.50 336.00 212.50 102.00 153.50 214.50 428.50 622.00 828.73 a 5713.73
1981 692.50 674.00 574.50 500.00 317.00 242.50 86.00 63.00 196.00 489.28 a 580.50 838.50 5253.78
1982 997.50 730.00 681.50 529.00 348.00 114.50 101.50 97.00 166.50 416.00 783.50 812.50 5777.50
1983 696.00 579.00 537.50 463.00 258.00 168.50 105.00 56.00 254.00 483.50 609.50 1040.50 5250.50
1984 794.50 632.00 557.50 493.00 378.50 189.00 97.50 70.00 231.50 530.50 694.50 1045.50 5714.00
1985 967.00 760.67 a 711.50 478.00 311.50 177.50 25.50 86.50 263.00 457.50 1021.00 1000.00 6259.67
1986 666.00 740.50 541.00 531.00 318.50 122.00 141.50 35.00 221.00 411.00 679.00 802.00 5208.50
1987 814.00 587.00 561.00 387.00 287.50 135.50 81.50 64.00 161.50 437.50 551.00 877.50 4945.00
1988 881.00 675.00 632.50 434.50 299.50 178.50 108.50 84.50 238.00 355.00 614.50 774.50 5276.00
1989 840.00 904.50 693.00 367.50 308.50 117.00 95.00 85.50 165.50 422.00 600.50 786.00 5385.00
1990 768.50 762.50 610.00 402.00 282.50 155.00 24.00 40.50 100.00 477.50 0.00 z 1029.00 4651.50
1991 990.00 0.00 z 688.00 467.50 319.50 179.50 56.50 58.00 139.50 483.50 609.50 714.50 4706.00
1992 695.50 571.00 491.00 380.00 230.00 93.00 46.50 72.00 233.50 400.00 627.50 935.00 4775.00
1993 1062.00 710.00 573.00 430.00 154.50 112.00 111.00 73.00 201.00 352.00 784.00 818.00 5380.50
1994 653.00 787.50 555.50 387.50 247.50 175.50 71.50 58.50 133.00 442.00 765.00 812.50 5089.00
1995 785.50 626.00 610.00 463.00 223.50 123.50 48.50 111.50 98.50 441.50 551.50 793.50 4876.50
1996 951.00 692.50 630.50 410.50 382.00 186.00 66.00 60.50 238.00 445.00 791.00 1014.50 5867.50
1997 866.50 664.50 652.00 469.50 209.00 134.50 67.00 12.00 108.00 437.00 551.00 752.50 4923.50
1998 850.00 582.00 562.50 435.00 262.50 115.50 37.00 49.00 150.50 408.00 583.50 843.20 a 4878.70
1999 766.00 649.00 653.00 479.00 386.50 224.50 75.00 39.00 190.50 473.00 581.00 786.50 5303.00
2000 831.00 665.50 638.00 424.00 342.00 143.00 77.50 117.00 194.00 422.50 713.00 879.00 5446.50
2001 754.00 703.11 a 594.50 495.00 320.50 202.00 113.00 71.00 187.00 454.50 592.00 810.00 5296.61
2002 807.00 692.50 819.00 506.50 375.50 142.50 71.50 99.20 a 215.50 491.50 558.50 750.50 5529.70
2003 689.50 690.50 636.50 475.50 324.50 124.50 59.00 64.50 160.00 343.50 750.00 771.50 5089.50
2004 851.00 639.00 542.00 351.50 256.00 101.00 36.00 22.00 207.00 416.50 672.00 748.00 4842.00
2005 843.50 662.50 553.00 453.00 209.00 154.50 46.50 41.50 231.00 394.50 711.50 799.50 5100.00
2006 676.50 703.00 628.00 461.00 293.50 111.50 66.00 79.50 209.00 451.00 700.00 789.50 5168.50
2007 895.50 639.50 599.50 485.00 309.00 181.50 36.00 87.50 229.50 483.50 690.00 854.00 5490.50
2008 901.50 674.00 699.50 574.50 300.50 256.00 87.50 79.50 215.00 490.00 579.50 1014.50 5872.00
2009 905.00 725.00 752.00 494.50 310.50 116.00 45.50 89.00 141.50 478.00 605.00 964.50 5626.50
2010 648.50 559.50 585.50 469.50 373.50 196.50 97.50 99.50 150.50 385.50 736.00 764.50 5066.50
2011 811.00 776.50 628.00 589.50 385.00 179.50 101.50 93.00 142.00 470.50 749.50 854.00 5780.00
2012 870.00 686.00 697.00 461.50 324.00 227.50 69.00 66.50 180.50 426.00 624.00 827.50 5459.50
2013 910.50 653.00 608.00 15.00 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 2171.50
Period of Record Statistics
MEAN 907.69 722.38 663.61 490.33 334.87 191.51 105.86 110.61 225.99 461.11 677.93 855.24 5699.56
S.D. 156.73 103.05 79.00 66.46 60.70 53.94 47.86 49.17 57.18 57.53 85.05 99.39 452.17
SKEW 1.01 0.81 -0.03 0.17 -0.19 -0.03 0.80 0.33 -0.12 0.44 0.52 0.48 -0.17
MAX 1481.50 1094.75 878.50 644.00 479.50 320.50 306.00 241.50 361.00 643.50 1021.00 1061.50 6714.00
MIN 648.50 554.50 448.50 333.00 154.50 54.00 7.50 7.00 98.50 335.00 483.50 648.00 4775.00
NO YRS 108 109 110 110 108 107 110 107 110 110 108 110 99