EVERETT, WASHINGTON

Monthly Total Heating Degree Days

(452675)

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
1894 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 21.00 w 242.00 436.50 582.00 898.50 2159.00
1895 875.00 0.00 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 875.00
1896 0.00 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
1897 0.00 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
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 0.00 z 0.00 z 0.00
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 0.00 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 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 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 578.28 a 968.50 1546.78
1915 896.50 643.00 539.50 417.00 338.50 185.00 114.50 109.05 c 299.48 a 427.50 676.67 c 575.00 g 4646.70
1916 890.00 f 480.00 j 618.34 c 477.41 a 454.00 223.00 186.50 179.50 334.50 649.50 762.00 948.00 4832.75
1917 948.60 a 751.69 b 799.50 542.50 399.00 302.00 191.00 159.50 275.50 493.50 544.00 746.14 b 6152.93
1918 748.65 a 787.00 680.00 545.00 440.50 220.00 87.00 g 155.50 273.00 0.00 z 629.50 811.00 5290.15
1919 802.00 722.50 679.50 488.00 410.50 292.50 194.00 167.40 a 308.00 546.50 630.00 894.50 6135.40
1920 860.00 780.00 656.00 612.50 450.50 213.50 91.00 124.50 250.00 484.50 605.00 713.00 5840.50
1921 769.50 642.50 672.50 545.50 396.50 182.00 186.00 147.00 294.50 69.00 z 636.50 870.00 5342.50
1922 964.50 772.50 747.50 568.00 359.50 186.50 141.00 125.50 215.50 421.00 714.00 882.50 6098.00
1923 786.50 816.00 720.50 459.00 348.00 182.50 98.00 80.00 246.00 427.00 588.00 752.00 5503.50
1924 797.00 556.00 692.50 524.50 307.00 203.50 128.00 139.00 256.00 427.00 672.50 913.50 5616.50
1925 740.50 580.00 666.50 445.50 277.50 212.50 79.00 131.50 245.50 539.00 628.50 629.00 5175.00
1926 775.00 547.00 542.00 367.50 271.00 132.00 88.00 120.68 c 299.00 365.50 531.00 797.45 b 4836.13
1927 796.00 364.00 k 682.50 526.55 a 390.00 155.50 77.50 a 82.00 210.00 374.50 579.00 903.00 4776.55
1928 716.00 667.50 547.50 496.00 272.50 172.00 78.00 161.00 274.00 448.50 557.50 803.00 5193.50
1929 998.00 898.50 634.00 565.71 b 368.00 220.50 120.50 109.00 253.50 358.00 666.50 702.50 5894.71
1930 1096.00 608.50 613.50 403.50 392.50 206.50 127.00 89.00 228.50 482.00 649.00 722.96 c 5618.96
1931 635.00 646.50 560.50 417.00 275.50 175.00 91.50 126.00 212.00 435.55 a 710.50 759.50 5044.55
1932 844.00 729.00 580.50 429.00 360.50 174.11 b 165.50 116.50 242.00 387.50 512.50 889.18 a 5430.29
1933 817.88 a 796.50 624.00 518.00 397.50 248.00 160.00 98.50 260.50 401.00 584.50 660.50 5566.88
1934 630.50 546.50 502.00 344.50 274.00 180.00 125.00 86.00 260.00 361.50 496.50 732.50 4539.00
1935 766.50 612.00 698.50 534.50 373.00 180.50 125.50 g 149.00 213.00 489.00 718.00 689.50 5423.50
1936 722.50 949.00 695.50 411.21 a 286.50 140.50 94.50 77.00 285.00 377.00 667.00 706.50 5412.21
1937 1161.00 712.00 519.50 484.00 355.50 148.50 100.50 137.00 216.00 366.50 542.00 692.50 5435.00
1938 784.50 635.00 614.50 413.00 345.50 178.50 98.50 176.00 160.00 418.50 691.00 736.50 5251.50
1939 681.48 a 722.00 646.00 432.50 326.00 246.50 114.50 97.00 235.50 415.50 452.00 591.50 4960.48
1940 700.00 577.00 509.00 387.00 256.00 152.50 88.00 93.50 137.00 308.00 689.00 680.50 4577.50
1941 660.00 542.00 463.50 377.00 295.00 154.00 55.50 90.00 253.50 383.00 543.00 717.00 4533.50
1942 798.00 650.00 591.50 411.50 319.00 205.00 48.50 66.00 225.50 373.00 668.00 707.00 5063.00
1943 974.50 630.00 657.00 393.00 387.50 225.00 126.50 117.50 182.00 402.00 574.00 737.28 a 5406.28
1944 699.50 678.00 654.50 444.50 346.50 207.50 90.00 125.00 170.50 329.50 588.50 841.00 5175.00
1945 720.50 626.00 646.00 521.00 272.50 208.50 87.50 101.50 276.00 396.50 632.00 776.00 5264.00
1946 723.00 623.50 624.50 484.50 269.00 184.50 88.50 107.00 209.00 497.50 702.50 798.00 5311.50
1947 910.50 602.50 591.50 450.50 278.00 196.00 105.00 123.00 266.00 401.97 a 630.54 b 704.73 a 5260.24
1948 834.93 a 405.00 n 451.50 i 542.00 369.93 a 119.46 b 95.00 103.00 238.00 492.50 666.50 908.50 4369.83
1949 1111.50 803.00 612.00 463.50 284.00 228.50 156.00 118.00 189.31 a 545.50 470.50 793.00 5774.81
1950 1229.50 707.00 669.00 568.50 427.50 153.50 112.50 85.00 207.00 440.50 618.00 563.00 5781.00
1951 808.00 703.50 811.17 a 511.50 364.50 185.00 81.00 121.50 206.00 425.00 633.50 850.00 5700.67
1952 889.00 678.50 665.50 491.00 334.00 271.50 100.50 112.00 185.50 354.50 712.50 716.00 5510.50
1953 630.50 625.00 626.50 487.50 328.00 226.00 90.50 64.50 190.00 384.00 505.34 a 684.50 4842.34
1954 903.50 615.00 715.50 545.00 340.50 267.50 168.00 158.00 196.50 408.50 470.00 760.50 5548.50
1955 794.24 b 709.00 636.50 g 565.50 404.50 217.76 a 146.22 a 136.00 206.90 a 425.50 802.00 816.50 5224.11
1956 818.50 860.00 713.50 452.00 255.50 211.50 65.00 93.50 213.50 448.50 686.50 748.00 5566.00
1957 1026.50 751.00 629.00 421.50 209.00 126.50 89.00 65.50 84.00 411.00 650.50 653.00 5116.50
1958 648.50 476.50 617.00 432.00 165.00 78.21 b 17.00 43.00 199.00 409.00 659.50 622.50 4367.21
1959 778.50 700.00 637.50 464.50 360.00 167.00 82.00 141.00 255.00 416.50 661.50 758.50 5422.00
1960 837.00 671.50 662.00 458.00 374.00 195.50 80.00 141.00 264.00 388.50 637.50 794.50 5503.50
1961 709.50 537.50 594.00 509.00 343.00 126.00 63.50 36.50 255.00 506.00 729.00 759.00 5168.00
1962 824.00 637.50 733.50 426.00 399.50 220.50 131.50 109.50 194.00 381.00 539.00 709.00 5305.00
1963 962.00 518.00 644.50 499.50 305.00 214.50 116.00 85.50 129.50 342.50 591.50 757.50 5166.00
1964 714.50 713.00 668.50 562.00 407.00 225.50 107.00 151.50 278.50 421.00 718.50 889.00 5856.00
1965 800.50 651.50 665.50 475.00 423.50 169.50 79.50 82.50 283.00 325.50 492.50 788.00 5236.50
1966 768.50 657.50 642.00 472.00 385.00 203.50 119.50 94.50 168.00 442.00 590.50 645.50 5188.50
1967 719.50 642.00 700.00 583.00 347.50 109.00 65.50 27.50 123.00 375.00 612.00 779.00 5083.00
1968 782.00 614.00 559.00 554.46 b 308.00 174.50 59.50 126.50 0.00 z 475.00 597.50 900.00 5150.46
1969 1041.00 703.00 634.00 474.50 283.00 89.50 133.50 153.50 214.50 477.50 624.50 750.50 5579.00
1970 818.50 614.00 654.00 562.00 395.00 172.50 100.00 122.50 314.00 533.50 647.50 842.50 5776.00
1971 822.00 676.50 763.00 507.50 364.50 266.50 128.50 53.00 277.50 505.50 620.50 883.50 5868.50
1972 939.00 730.00 614.50 574.50 304.50 214.50 114.50 103.00 306.50 561.00 641.00 891.50 5994.50
1973 855.50 637.50 625.00 508.50 330.00 215.00 100.00 167.50 198.00 440.50 714.50 692.00 5484.00
1974 862.00 645.00 669.50 510.50 421.50 184.50 138.00 71.00 161.50 461.00 589.50 698.50 5412.50
1975 820.50 722.50 721.00 619.00 368.00 230.50 78.00 160.00 226.00 443.00 643.50 743.48 a 5775.48
1976 677.00 666.46 b 683.00 434.50 281.50 226.00 54.00 106.50 126.00 396.00 583.50 662.00 4896.46
1977 874.50 512.50 618.00 383.50 325.50 99.50 92.00 47.50 221.00 426.50 642.00 723.00 4965.50
1978 690.50 538.00 521.00 414.00 333.00 57.00 60.00 54.50 185.00 376.00 734.00 874.50 4837.50
1979 1000.00 689.00 548.00 452.50 262.00 171.50 60.50 41.00 113.50 359.00 673.00 633.43 a 5003.43
1980 917.50 646.00 621.50 408.00 339.00 205.00 92.50 107.50 191.50 0.00 z 0.00 z 619.50 4148.00
1981 651.00 617.00 523.00 449.00 326.50 202.50 88.50 28.00 167.50 461.00 537.00 727.50 4778.50
1982 814.00 645.50 648.00 544.00 319.50 98.00 113.00 120.00 253.50 464.00 778.00 848.50 5646.00
1983 737.50 601.00 567.50 517.50 315.50 220.50 105.00 70.50 280.00 499.00 576.50 997.00 5487.50
1984 726.50 619.00 534.50 492.00 357.00 190.00 83.00 56.50 203.50 464.00 621.00 919.50 5266.50
1985 891.00 729.00 684.50 471.00 300.50 152.50 18.50 47.00 200.50 417.00 870.00 901.00 5682.50
1986 628.00 657.50 514.00 550.50 339.50 138.50 148.50 42.50 242.00 407.50 614.50 787.50 5070.50
1987 800.50 572.50 566.00 420.50 306.50 171.00 105.50 104.50 186.50 423.50 534.00 857.50 5048.50
1988 819.00 665.50 652.50 477.00 326.50 216.50 123.50 61.00 210.00 337.50 570.00 720.00 5179.00
1989 724.00 871.50 645.50 373.00 276.50 87.50 83.50 47.50 138.00 390.50 533.50 691.00 4862.00
1990 731.00 768.00 599.00 409.00 326.50 185.00 40.50 46.00 170.50 532.50 621.50 984.00 5413.50
1991 867.00 493.50 656.00 396.00 248.00 142.00 16.00 21.00 125.00 462.50 576.00 736.00 4739.00
1992 712.50 552.00 511.50 377.00 262.00 117.00 98.50 162.00 295.50 359.00 595.50 833.50 4876.00
1993 911.50 689.00 574.00 232.00 l 169.50 146.00 105.50 70.50 198.00 370.00 814.50 808.00 4856.50
1994 651.50 742.50 588.50 396.50 257.00 147.00 44.50 19.00 116.00 449.00 739.00 774.50 4925.00
1995 739.00 611.00 639.50 459.00 227.00 120.00 28.00 145.50 103.00 429.00 507.00 724.00 4732.00
1996 762.00 695.50 588.50 392.50 380.50 178.00 65.50 54.00 235.50 443.00 669.50 844.00 5308.50
1997 762.00 637.00 621.50 454.50 219.50 140.00 52.00 7.00 111.00 420.00 521.00 746.00 4691.50
1998 673.50 513.50 571.00 414.00 275.26 b 110.50 16.50 39.50 123.00 409.00 552.50 793.50 4491.76
1999 686.02 d 610.30 a 626.00 517.50 399.38 a 216.50 106.36 b 48.57 a 217.76 a 461.00 532.20 e 695.84 c 5117.42
2000 771.79 b 655.61 a 624.00 418.50 316.95 b 170.00 60.40 b 69.50 193.89 c 364.50 545.00 g 809.74 b 4454.88
2001 685.74 b 702.59 a 616.50 480.50 335.32 a 166.61 b 97.50 59.00 187.78 c 313.50 i 541.11 c 737.91 c 4610.56
2002 725.00 640.50 714.00 479.00 373.50 113.65 d 65.50 58.00 188.50 487.00 563.50 674.50 5082.65
2003 609.00 643.00 543.50 423.00 304.50 120.00 36.00 31.50 144.00 290.50 667.20 e 703.00 4515.20
2004 760.50 619.00 533.00 353.50 227.00 112.20 e 17.00 j 7.50 167.00 376.00 452.50 h 720.15 e 3875.85
2005 0.00 z 657.00 468.50 415.50 194.50 151.00 33.21 c 31.50 209.50 324.00 634.80 e 635.00 f 3119.51
2006 607.37 d 670.50 606.00 448.00 313.00 109.50 43.50 53.00 160.50 445.00 464.50 f 749.00 4205.37
2007 826.00 588.50 554.12 c 439.50 317.50 172.50 35.50 63.00 211.50 443.00 658.00 778.00 5087.12
2008 809.50 632.00 664.50 575.00 335.00 243.00 88.50 48.50 214.50 469.50 382.50 g 884.00 4964.00
2009 857.00 656.00 715.00 497.50 0.00 z 0.00 z 0.00 z 51.50 117.50 437.00 575.50 899.50 4806.50
2010 615.50 556.50 551.00 467.50 371.50 200.50 78.00 80.00 130.50 403.00 650.50 665.98 a 4770.48
2011 734.91 b 728.00 a 610.18 a 596.00 414.37 a 197.00 124.55 c 64.50 135.56 c 427.28 a 691.67 c 824.27 c 5548.29
2012 793.94 d 641.62 a 680.34 c 423.50 338.33 b 225.50 57.87 a 32.55 a 168.46 d 391.50 558.00 744.00 5055.61
2013 844.50 631.50 599.00 13.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 29.50 z 2075.00
Period of Record Statistics
MEAN 802.41 660.57 625.76 473.16 328.96 180.18 94.45 92.76 211.38 426.09 622.03 774.12 5267.50
S.D. 122.01 86.57 68.73 63.76 60.91 48.12 39.63 43.57 55.67 60.49 79.22 92.28 414.17
SKEW 0.98 0.64 0.01 0.21 -0.32 -0.12 0.30 0.06 -0.12 0.61 0.37 0.27 0.02
MAX 1229.50 949.00 811.17 619.00 454.00 302.00 194.00 179.50 334.50 649.50 870.00 997.00 6152.93
MIN 607.37 476.50 463.50 344.50 165.00 57.00 16.00 7.00 84.00 290.50 452.00 563.00 4367.21
NO YRS 98 96 97 97 97 97 94 98 98 95 95 98 80