ELMA, WASHINGTON

Monthly Total Heating Degree Days

(452531)

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
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 459.50 n 630.00 630.00
1897 402.50 m 600.50 678.00 344.50 33.00 u 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 491.50 f 1623.00
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 0.00 z 0.00 z 0.00
1915 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
1916 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
1917 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
1918 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
1919 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
1920 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
1921 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
1922 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
1923 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
1924 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
1925 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
1926 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
1927 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
1928 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
1929 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
1930 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
1931 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
1932 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
1933 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
1934 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
1935 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
1936 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
1937 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
1938 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
1939 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
1940 0.00 z 647.50 544.50 434.00 245.00 146.90 a 90.00 71.82 a 110.50 323.00 700.00 650.50 3963.71
1941 689.00 551.00 442.50 382.24 a 328.00 205.50 42.50 91.50 239.50 354.50 557.07 a 720.00 4603.31
1942 813.00 638.50 679.00 448.00 348.50 246.00 63.50 73.00 171.50 356.50 696.72 a 708.50 5242.72
1943 973.00 622.50 709.38 a 416.50 400.33 b 229.82 b 93.00 b 118.50 142.50 403.00 578.00 759.50 5446.03
1944 735.22 a 662.34 a 660.00 477.50 357.50 215.50 91.89 c 129.50 155.50 264.00 536.00 852.50 e 5137.45
1945 732.38 c 656.00 730.50 585.50 282.50 238.50 79.00 97.28 b 229.50 413.00 658.50 779.00 5481.65
1946 767.50 657.50 651.00 509.00 242.00 244.50 118.32 a 112.50 228.00 554.50 730.50 779.50 5594.82
1947 895.00 589.00 543.00 386.25 b 226.00 168.62 a 103.50 97.13 a 195.00 a 411.50 642.00 749.50 5006.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 112.50 98.50 131.50 219.50 434.00 670.00 904.50 2570.50
1949 1111.50 756.50 609.50 453.50 218.00 241.00 149.00 129.74 d 170.50 499.00 440.00 806.52 a 5584.76
1950 1187.00 733.00 692.00 565.50 420.50 182.50 102.00 79.50 0.00 z 0.00 z 569.00 585.50 5116.50
1951 794.24 b 666.30 a 852.50 421.00 313.00 118.00 73.00 44.29 c 153.50 g 435.50 592.00 830.00 5139.82
1952 873.00 687.50 693.00 484.00 334.50 228.50 102.50 120.00 127.50 284.50 673.50 741.50 5350.00
1953 630.50 606.50 603.00 537.00 357.00 318.50 83.50 198.50 170.50 341.00 537.50 680.50 5064.00
1954 888.00 632.50 717.50 553.50 349.50 90.00 u 205.00 120.00 168.50 421.50 445.00 732.50 5233.50
1955 783.50 685.00 771.00 599.00 405.00 207.50 183.42 a 147.50 228.50 429.50 757.50 787.50 5984.92
1956 786.50 832.00 716.50 381.50 246.00 250.00 97.00 93.50 209.00 456.00 692.50 730.50 5491.00
1957 968.00 695.50 606.00 434.00 241.50 148.00 157.50 89.50 86.00 414.00 603.50 643.00 5086.50
1958 0.00 z 263.00 l 627.00 430.86 a 151.50 76.50 18.00 57.50 227.00 372.00 650.50 616.38 a 3227.25
1959 754.50 658.50 641.00 453.00 354.50 172.00 73.50 107.50 185.00 385.50 605.00 744.00 5134.00
1960 813.50 671.50 629.00 435.50 386.50 191.50 86.00 161.00 200.50 342.50 632.00 768.50 5318.00
1961 619.50 521.00 571.50 506.50 317.50 0.00 z 56.50 25.50 206.50 433.50 717.50 755.50 4731.00
1962 793.00 590.50 664.50 420.50 440.50 204.50 145.50 101.00 145.50 344.50 531.50 677.50 5059.00
1963 912.00 454.50 643.50 456.50 322.00 217.00 114.18 a 61.00 85.00 324.00 595.00 701.50 4886.18
1964 712.00 663.00 655.50 539.00 404.50 208.00 114.00 118.50 185.50 351.00 673.00 862.50 5486.50
1965 768.50 611.00 587.00 442.50 395.00 179.50 72.50 51.50 196.00 296.00 504.50 781.50 4885.50
1966 754.00 628.00 630.50 439.00 312.50 209.00 86.50 65.00 135.50 397.50 560.00 636.00 4853.50
1967 693.50 603.00 692.50 562.50 314.00 81.50 59.00 17.00 38.00 352.00 571.00 772.50 4756.50
1968 752.50 538.50 544.50 506.50 293.00 188.50 54.50 85.50 156.00 415.50 568.50 873.50 4977.00
1969 1008.00 696.50 598.00 502.00 236.50 79.00 80.50 109.50 167.50 418.00 579.50 664.00 5139.00
1970 752.50 542.50 603.50 566.00 347.50 132.00 91.00 59.00 233.50 458.00 609.00 810.00 5204.50
1971 785.50 644.00 726.50 502.50 306.00 283.50 92.50 28.00 226.50 446.50 593.50 842.00 5477.00
1972 884.50 688.00 587.50 591.50 252.00 152.50 78.00 50.00 262.00 465.00 594.50 870.00 5475.50
1973 829.50 618.50 609.00 465.00 279.00 194.00 105.00 153.50 134.00 407.50 689.00 671.00 5155.00
1974 829.00 647.00 628.00 463.00 407.50 170.00 120.00 44.50 68.50 359.50 557.50 689.00 4983.50
1975 777.50 651.50 687.50 562.50 303.50 216.00 60.50 104.50 122.50 424.50 609.00 741.00 5260.50
1976 709.50 706.50 697.00 498.00 303.50 242.50 77.50 98.00 91.00 343.00 551.50 692.00 5010.00
1977 825.00 517.50 661.00 398.00 391.00 154.50 121.50 53.50 209.00 410.00 668.00 713.50 5122.50
1978 680.00 543.50 523.50 458.50 354.50 102.00 59.00 72.50 180.50 347.50 755.00 914.00 4990.50
1979 945.50 680.50 518.50 445.50 283.00 169.00 71.50 32.00 103.00 319.00 642.00 661.50 4871.00
1980 928.00 613.50 627.00 394.00 309.00 219.50 69.50 90.50 160.00 365.00 530.17 a 660.00 4966.17
1981 671.50 605.50 533.00 484.66 a 324.00 196.50 103.33 a 38.00 152.00 428.50 577.00 740.50 4854.49
1982 832.50 657.00 669.00 570.00 314.50 95.50 97.50 73.00 145.50 388.00 713.50 797.50 5353.50
1983 653.50 546.00 528.50 443.00 255.00 181.00 91.50 23.50 220.00 443.50 565.50 928.00 4879.00
1984 706.00 619.00 528.50 529.00 403.50 201.50 84.50 73.50 209.50 485.00 624.00 888.50 5352.50
1985 836.50 722.50 696.50 448.00 319.00 187.00 17.00 52.00 229.00 446.50 870.00 906.50 5730.50
1986 655.00 637.50 482.50 518.50 311.50 100.00 150.00 8.00 197.00 309.00 590.50 737.50 4697.00
1987 765.50 562.50 543.50 390.00 261.00 133.00 83.50 46.00 114.00 318.50 536.00 823.50 4577.00
1988 800.50 611.00 615.00 425.50 337.00 227.50 112.50 85.00 175.50 287.50 607.50 740.50 5025.00
1989 770.00 833.50 674.50 363.00 308.50 150.50 112.00 77.00 117.50 353.50 561.00 693.00 5014.00
1990 706.00 723.50 514.00 391.50 326.00 180.00 31.00 51.00 94.00 488.00 584.00 970.50 5059.50
1991 801.00 492.50 665.00 477.00 375.00 232.50 82.00 55.50 110.50 386.00 556.00 694.50 4927.50
1992 665.50 512.50 450.50 383.00 211.00 113.00 45.50 55.00 209.50 363.00 621.50 832.00 4462.00
1993 863.50 690.00 538.50 425.00 184.00 166.50 99.50 65.50 146.50 324.50 0.00 z 766.50 4270.00
1994 619.50 698.00 528.00 378.50 254.50 195.00 68.00 50.50 70.50 428.00 731.00 754.50 4776.00
1995 672.50 560.50 567.00 442.00 222.00 143.50 43.00 115.00 60.00 407.00 531.50 714.50 4478.50
1996 743.50 653.00 545.50 394.00 391.50 187.50 54.50 47.00 218.00 443.00 642.00 786.00 5105.50
1997 729.00 615.00 598.50 478.00 204.50 175.50 64.00 18.00 111.50 395.50 524.50 755.00 4669.00
1998 718.00 555.00 541.00 462.50 279.50 141.00 77.50 32.50 89.50 386.00 566.00 794.00 4642.50
1999 715.50 637.50 652.00 478.00 405.00 229.00 116.50 47.00 159.50 441.50 555.50 691.00 5128.00
2000 792.00 620.50 615.50 395.00 321.50 163.00 63.00 0.00 z 172.00 0.00 z 726.00 743.00 4611.50
2001 724.50 686.00 590.00 507.50 317.00 234.00 120.50 78.00 155.69 a 450.50 566.50 756.50 5186.69
2002 732.00 642.00 714.00 478.00 357.50 143.00 55.00 92.50 169.50 453.50 610.50 730.50 5178.00
2003 634.50 662.00 586.50 521.50 340.50 67.00 28.00 20.50 125.50 320.50 706.00 740.50 4753.00
2004 737.00 615.00 501.00 358.50 254.00 121.50 52.00 28.50 171.50 379.00 629.00 716.00 4563.00
2005 723.00 653.50 513.00 424.50 238.50 156.00 36.00 25.00 188.00 354.50 673.50 747.50 4733.00
2006 657.00 654.00 629.00 408.00 267.00 122.00 79.50 60.50 132.00 426.50 662.00 757.50 4855.00
2007 812.50 561.50 488.50 424.00 258.00 165.00 34.00 63.00 180.50 432.50 648.00 798.50 4866.00
2008 835.00 636.00 673.00 523.00 309.50 250.00 74.50 58.00 115.50 388.00 495.50 847.50 5205.50
2009 772.00 644.00 664.50 419.50 0.00 z 0.00 z 0.00 z 63.00 100.00 386.00 589.00 898.50 4536.50
2010 585.00 531.50 541.50 455.00 302.00 186.50 75.00 77.50 136.50 388.00 668.50 711.00 4658.00
2011 750.00 656.00 571.00 571.50 387.00 197.00 76.50 59.50 97.50 387.00 663.50 779.50 5196.00
2012 806.00 645.50 667.00 407.50 347.50 228.00 64.50 39.50 114.00 388.00 551.00 748.00 5006.50
2013 828.00 604.50 178.50 v 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 1432.50
Period of Record Statistics
MEAN 781.24 632.23 614.77 463.37 312.20 180.19 85.16 74.59 158.57 392.24 614.06 759.15 5063.76
S.D. 109.24 68.74 78.57 62.87 62.74 51.80 35.32 38.22 50.91 55.64 76.16 79.65 315.20
SKEW 1.16 0.17 0.12 0.36 -0.16 -0.12 0.79 0.69 -0.17 0.06 0.46 0.40 0.37
MAX 1187.00 833.50 852.50 599.00 440.50 318.50 205.00 198.50 262.00 554.50 870.00 970.50 5984.92
MIN 585.00 454.50 442.50 344.50 151.50 67.00 17.00 8.00 38.00 264.00 440.00 585.50 4462.00
NO YRS 71 73 73 73 71 70 72 72 71 71 72 74 63