EVERETT JR COLLEGE, WASHINGTON

Monthly Total Heating Degree Days

(452675)

Base Temperature = 65 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 116.38 a 95.00 103.00 238.00 491.50 666.50 908.50 2618.88
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 670.50 593.28 b 433.50 293.98 a 147.69 d 66.50 j 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2746.32
Period of Record Statistics
MEAN 798.61 653.97 625.30 472.01 318.12 169.15 86.16 81.57 197.69 425.66 624.14 770.95 5237.60
S.D. 125.69 79.49 66.66 61.37 62.68 50.57 36.71 44.36 54.33 58.47 86.42 92.71 401.23
SKEW 1.03 0.16 0.12 0.28 -0.44 -0.06 -0.06 0.32 0.07 0.13 0.54 0.28 -0.10
MAX 1229.50 871.50 811.17 619.00 427.50 271.50 168.00 167.50 314.00 561.00 870.00 997.00 5994.50
MIN 607.37 476.50 468.50 353.50 165.00 57.00 16.00 7.00 84.00 290.50 470.00 563.00 4367.21
NO YRS 57 58 57 57 58 59 57 58 57 56 55 57 49