ILLAHE, OREGON

Monthly Total Heating Degree Days

(354133)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200706
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
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 295.00 651.50 677.00 1623.50
1939 704.50 647.50 424.00 227.50 178.00 96.00 4.00 7.00 36.50 255.00 528.00 587.00 3695.00
1940 667.00 503.50 450.50 282.50 135.00 32.50 3.00 2.50 h 47.50 0.00 z 541.00 681.50 3344.00
1941 630.50 463.50 386.00 280.50 209.50 0.00 z 0.00 l 20.00 121.00 296.50 481.50 663.00 3552.00
1942 732.50 591.50 562.50 384.50 306.50 141.00 9.50 11.00 35.50 241.50 526.00 625.00 4167.00
1943 796.50 522.00 458.50 312.00 235.00 130.50 11.50 19.50 5.00 288.50 512.50 722.00 4013.50
1944 726.00 626.50 533.00 450.00 225.50 106.00 3.50 5.50 46.50 198.50 595.00 684.00 4200.00
1945 683.00 0.00 z 608.50 294.00 h 179.50 75.50 0.00 b 2.50 54.60 e 298.50 546.50 640.50 3089.10
1946 745.55 a 607.50 547.50 342.50 131.50 122.00 9.50 2.50 73.00 398.00 642.50 692.50 4314.55
1947 856.63 a 468.00 421.50 286.50 118.00 106.50 16.00 30.00 61.00 271.50 542.00 683.00 3860.63
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 29.00 18.00 127.50 322.00 605.00 843.50 1945.00
1949 1014.50 667.85 a 560.00 293.00 176.50 39.31 a 8.00 10.00 45.50 427.50 476.50 739.00 4457.66
1950 902.50 612.89 a 588.50 397.00 232.50 81.00 0.00 5.00 71.00 306.00 481.50 507.22 b 4185.11
1951 719.00 383.00 i 638.60 a 272.50 203.50 37.00 8.27 a 7.00 14.00 309.50 499.00 745.00 3453.37
1952 825.00 611.00 628.78 a 298.00 192.50 130.00 0.52 a 7.00 31.55 a 134.00 654.83 a 672.00 4185.18
1953 538.88 a 524.00 582.00 383.50 336.00 188.50 3.00 25.00 28.50 52.00 z 346.50 f 646.83 e 3256.21
1954 704.73 a 375.00 f 536.76 d 243.50 g 137.50 h 193.80 e 36.50 0.00 s 63.00 n 314.50 433.00 714.50 2933.79
1955 762.00 630.00 597.50 571.50 268.00 100.50 68.50 4.13 a 53.00 i 0.00 z 0.00 z 0.00 z 3002.13
1956 0.00 z 317.50 q 184.50 w 0.00 z 93.50 m 14.50 v 17.00 13.00 31.50 293.50 569.50 721.50 1646.00
1957 854.50 494.50 491.50 346.00 189.50 61.00 13.00 30.50 57.50 380.27 a 576.00 633.00 4127.27
1958 90.00 z 0.00 z 0.00 z 351.96 b 112.50 71.50 0.00 0.50 64.00 203.00 391.00 484.00 1678.46
1959 572.50 571.50 455.50 265.50 260.00 91.50 9.00 15.00 96.50 234.00 513.00 702.50 3786.50
1960 732.00 545.50 417.00 368.50 291.00 27.50 0.50 31.00 16.00 244.00 506.50 678.00 3857.50
1961 589.00 496.50 528.50 365.50 308.00 61.00 21.50 0.50 95.50 295.00 582.00 697.00 4040.00
1962 789.50 587.50 579.50 300.00 361.00 118.50 14.00 21.00 22.00 256.50 427.80 e 621.50 4098.80
1963 0.00 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
1964 0.00 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
1965 0.00 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
1966 0.00 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
1967 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 20.50 h 1.00 0.00 10.50 269.50 471.00 760.00 1512.00
1968 742.50 434.50 436.00 404.00 260.50 73.00 5.00 40.50 59.50 305.00 499.00 733.50 3993.00
1969 797.50 692.00 528.50 432.00 34.00 w 61.00 13.00 22.00 56.00 335.00 479.50 617.00 4033.50
1970 591.00 439.50 468.00 505.00 229.50 88.00 6.50 5.50 94.00 275.00 i 468.50 734.50 3630.00
1971 721.50 568.50 606.50 468.50 281.50 145.00 51.00 14.50 124.00 363.50 564.50 785.00 4694.00
1972 768.50 570.50 409.50 470.50 183.00 50.50 12.50 24.00 118.50 275.00 503.00 816.50 4202.00
1973 713.00 470.50 581.00 352.50 201.00 111.00 45.00 89.50 58.00 290.00 560.00 576.00 4047.50
1974 742.50 581.50 506.00 390.00 264.00 45.00 32.50 4.50 2.00 220.00 458.00 639.00 3885.00
1975 663.00 627.00 571.00 519.50 220.50 114.50 13.50 36.50 7.50 310.00 567.00 622.00 4272.00
1976 667.00 592.00 564.50 441.00 206.00 143.00 6.50 31.50 21.00 221.50 402.00 758.50 4054.50
1977 752.00 450.50 581.50 307.50 338.00 29.00 31.50 10.50 52.50 k 241.50 528.50 582.00 3852.50
1978 548.50 470.00 354.50 434.50 244.00 69.00 6.00 23.00 120.50 178.00 606.50 803.00 3857.50
1979 764.15 a 599.50 403.00 380.50 187.00 79.50 27.50 4.50 12.00 170.00 533.50 634.98 a 3796.13
1980 706.00 464.50 540.00 357.00 258.50 163.00 13.00 8.00 42.50 248.00 449.50 613.50 3863.50
1981 569.37 a 487.50 484.50 356.00 233.50 79.50 30.00 4.00 79.50 324.50 473.00 583.50 3704.87
1982 796.00 569.50 584.00 502.00 212.50 87.50 33.50 9.00 62.50 278.50 573.00 692.00 4400.00
1983 667.50 510.00 481.00 431.00 207.00 112.00 60.00 22.50 68.50 214.50 502.00 675.50 3951.50
1984 648.00 579.00 0.00 z 492.50 273.00 139.00 2.00 0.50 73.00 369.42 a 584.00 768.00 3928.42
1985 742.50 587.50 608.50 296.50 252.50 65.50 0.00 5.00 74.50 383.88 a 86.00 z 457.00 n 3016.38
1986 572.00 468.00 354.50 364.66 a 268.50 51.00 0.00 z 0.00 150.50 209.50 461.00 649.50 3549.16
1987 704.50 509.50 497.50 231.43 b 150.00 0.00 z 18.50 0.00 25.50 0.00 z 441.50 657.50 3235.93
1988 624.00 489.50 501.00 370.00 268.00 116.00 11.00 2.00 44.00 62.00 512.59 a 747.00 3747.09
1989 724.00 712.00 526.50 215.50 192.00 42.00 19.50 10.00 13.50 240.00 534.50 699.00 3928.50
1990 652.00 628.00 420.50 334.50 251.00 75.52 a 2.00 17.50 0.50 339.00 0.00 z 0.00 z 2720.52
1991 0.00 z 373.50 566.00 417.00 264.00 114.00 0.00 0.00 0.00 188.00 426.00 0.00 z 2348.50
1992 628.00 412.00 371.00 342.50 36.00 8.00 32.00 3.50 0.00 z 0.00 z 0.00 z 806.50 2639.50
1993 0.00 z 0.00 z 0.00 z 0.00 z 466.00 0.00 z 0.00 36.50 0.00 120.50 605.50 813.50 2042.00
1994 816.50 469.00 553.50 331.00 139.50 202.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2511.50
1995 412.00 497.00 575.00 252.50 0.00 z 113.50 0.00 28.00 22.00 313.00 484.50 639.00 3336.50
1996 699.50 713.50 438.50 532.00 433.48 a 8.50 0.00 0.00 0.00 z 302.50 506.50 564.00 4198.48
1997 644.00 596.00 438.00 408.00 135.50 66.00 1.50 35.50 54.00 362.50 481.00 732.00 3954.00
1998 582.00 559.50 478.00 374.50 303.50 22.00 0.00 0.00 31.00 354.43 a 515.50 804.00 4024.43
1999 672.50 586.00 619.43 d 393.50 259.50 55.50 11.00 15.50 2.50 199.95 a 559.00 655.50 4029.88
2000 685.74 b 521.50 531.50 268.50 287.50 39.50 11.00 0.50 29.00 270.50 614.00 681.00 3940.24
2001 697.50 564.50 459.50 452.50 96.00 103.50 11.33 e 2.00 29.00 312.50 496.00 657.50 3881.83
2002 701.50 524.50 550.50 290.50 288.82 a 43.50 1.50 0.00 19.00 268.50 492.41 a 631.50 3812.23
2003 529.50 493.50 469.00 511.50 301.00 10.50 3.00 0.00 62.00 0.00 z 596.50 0.00 z 2976.50
2004 562.00 553.59 a 328.00 290.89 b 175.00 94.00 41.50 6.50 49.00 246.00 569.00 642.50 3557.98
2005 690.00 514.00 421.00 408.50 174.00 77.00 0.00 0.00 55.50 279.50 0.00 z 670.24 b 3289.74
2006 611.50 571.50 618.50 0.00 z 0.00 z 38.50 0.00 z 0.50 3.50 284.50 543.00 657.50 3329.00
2007 814.50 653.50 414.37 a 344.50 0.00 z 95.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2322.37
Period of Record Statistics
MEAN 697.80 548.69 505.69 369.89 231.42 85.46 13.76 13.10 49.24 273.92 523.16 680.73 4016.29
S.D. 101.64 75.72 79.87 83.41 77.49 45.40 15.87 15.32 37.07 69.77 61.39 74.71 233.43
SKEW 0.14 0.09 -0.29 0.32 0.38 0.49 1.53 2.31 0.76 -0.46 0.11 -0.05 0.67
MAX 1014.50 713.50 638.60 571.50 466.00 202.00 68.50 89.50 150.50 427.50 654.83 843.50 4694.00
MIN 412.00 373.50 328.00 215.50 36.00 8.00 0.00 0.00 0.00 62.00 391.00 484.00 3557.98
NO YRS 59 57 59 58 57 59 61 61 58 57 58 59 36