CORVALLIS STATE UNIV, OR

Monthly Sum of Heating Degree Days (Degrees Fahrenheit)

(351862)

Base Temperature = 65 F

File last updated on Aug 31, 2015
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.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
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)JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANN
1893983.89d728.50 639.00 591.00 374.50 201.00h102.41b70.00 252.50 541.50 641.00 688.45b5612.75a
1894761.50 759.50 661.00 484.00 322.24b222.00 46.50 34.00 194.50 438.50 574.00 813.00 5310.74
1895815.36c635.50a654.00 447.50 347.50 166.00 -----z56.00 288.00 387.00 691.50 774.50 5262.86a
1896715.50 585.50 642.00 563.00 430.00 183.00 27.50 37.50 189.54b379.50 780.50a667.50 5201.04
1897786.21b624.50 -----z349.00 170.50a145.00a89.50 28.50 179.80e382.50 568.09b673.50 3997.10a
1898795.00 527.00a656.50 386.00a313.00 -----z73.50 38.50 124.00 445.50 647.00 827.59b4833.59a
1899691.50 706.67b668.00 508.50 386.00 198.50 55.50 131.50 109.00 430.00 425.00 723.50 5033.67
1900704.00 615.29b434.00 408.50 295.00 115.00 64.50 105.50a196.50 373.33d460.89b647.50 4420.01
1901781.07c640.00 372.50l449.00a286.00 234.00 107.00 44.00 226.00 224.50a526.00 770.00 4287.57a
1902847.00 542.50 626.00 497.00 313.50 160.00a97.00 50.00 186.00a353.50 622.50 769.00 5064.00
1903733.97b746.00 637.00 517.00 307.50 131.50 102.00 69.50 146.50 387.00 581.00a788.50 5147.47
1904759.00 665.26b687.00 332.50a286.50 126.20c72.50a46.00a124.00 336.00 496.00a703.97b4634.93
1905750.00a601.00a472.00 354.50 323.50 144.00 15.00 60.00c126.50 443.00 679.00 771.96c4740.46
1906667.00 588.00 641.00 339.50 306.00 223.00a7.00 22.00a127.00a348.00 551.50a675.00 4495.00
1907672.00g500.00 631.00 398.50 248.50 144.00 30.00e54.00a149.00 276.00 551.50 668.00 3650.50a
1908718.50 662.50 603.50 415.50 431.50 199.50a13.00 86.00 194.50 378.00a515.00a809.50a5027.00
1909859.66b582.50a569.00 459.86b400.50 143.50 97.00a90.00 139.50 333.10b610.50 -----z4285.12a
1910265.50u738.35b534.50 421.00a242.00 207.50a50.50 91.00 184.00 357.50 617.00 753.50 4196.85a
1911931.50 756.00 556.50 558.50 434.50 257.50 48.00 46.50 333.00 426.50 616.50 786.50 5751.50
1912709.00 553.00 660.50 383.00g251.00a145.50 59.00 142.50a-----z474.50a417.50i711.11d3706.11c
1913792.00a733.50 613.97b448.00a328.00 159.50 67.50a46.00 173.00 314.00f539.09b752.50 4653.05a
1914621.50 608.00a465.00b373.00 227.00a224.50 23.00 44.00i176.00a294.50 590.00 914.00 4516.50a
1915812.50 571.00a449.00 312.50 318.50 59.00 40.00 5.56d151.00 365.50a-----z636.50 3721.06a
19161011.50 546.00 585.50 422.00a409.50 193.50 87.00 23.79b163.50 500.00 658.50a792.50a5393.29
1917791.38b669.50 749.00 518.00 323.50 140.54d11.00 3.00 116.00 224.50f510.29d554.00 4386.21a
1918614.00 638.50 593.50 451.00 323.28b52.00 21.00i47.88e35.50 292.24b613.00 781.50 4442.40a
1919-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00l
1920-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00l
1921755.50a561.50 572.50 486.00 326.00 114.00 70.00a55.00 211.50 313.50 535.50 833.50 4834.50
1922919.00 732.00 701.00 559.00 300.50 89.50 48.50a51.50 130.00 379.00 747.00 842.00 5499.00
1923765.00 780.50 660.00 438.00 314.50 176.00 36.00 10.50 113.00a350.00 515.00a753.00 4911.50
1924845.50 530.50 644.50 414.50 200.50 133.00 65.00f53.50 165.00 397.50 633.50a901.03b4919.03a
1925644.00a538.00 583.50 381.50 212.50 158.50 14.50 75.00 139.50 374.00 598.50 661.00 4380.50
1926768.00 507.00 440.50 248.50 265.00 100.00 23.00 31.50 186.50 315.00 519.50 742.50 4147.00
1927794.50 613.50 633.50 499.00 364.50 118.90e35.50 52.00 155.00 353.00 492.50 857.50 4969.40
1928765.00 606.00 470.50 452.00a191.00 118.00 31.50 19.50 126.50 341.00a563.00 741.00a4425.00
1929893.50 763.00 535.50 514.50 249.00 133.00 25.50 9.50 97.50 226.55b608.50a645.00 4701.05
19301105.00 518.50 435.00a277.00a325.50 127.00 26.00 7.50 104.50 358.50a614.00 776.00 4674.50
1931663.50 596.50 507.00 293.50 145.50a110.50 9.00 14.50a135.00a314.50 590.36b734.50a4114.36
1932771.50 656.00 510.50a392.00a274.00 91.50 67.50 38.00 73.50 272.00 499.00 859.00 4504.50
1933806.00 729.00 577.00 404.00 402.00 136.00 19.00 35.50 193.50 368.00a594.50 564.50 4829.00
1934582.50 477.00 353.50 275.00 215.00 136.50 41.00 20.50 150.00 276.50 489.50 716.50 3733.50
1935817.50 605.00 698.00 435.00 283.50 99.50 70.50 23.50 38.00 358.50a673.00 758.00 4860.00
1936651.50 787.00 601.50 308.00 180.00 65.50 7.00 6.00 97.00 234.00 631.50 658.50a4227.50
1937995.00a659.00 489.00 473.50 217.00 100.50 10.00 46.50 84.50a200.00 468.00 670.00 4413.00
1938747.00 605.50 564.50 343.50 226.50 84.50 28.50 31.00 23.50 303.00 649.00 677.50 4284.00
1939685.50 679.00 498.50 299.00 207.50 142.50 34.00a17.00 70.50 290.00 472.29b572.00a3967.79
1940714.50 535.00 429.00 315.50a137.50 68.50 6.00 5.00 55.00 227.00 618.00 649.00 3760.00
1941673.00 502.00 376.00 329.00 261.50 104.50a2.50 37.00 139.00 333.00 530.00 681.50 3969.00
1942866.00 626.00 569.50 343.00 273.50 143.50 19.50 31.50a67.50 273.50 537.00a635.00 4385.50
1943913.00 534.00 565.50 326.00 304.00 157.00 39.50 30.00 42.50 316.50 558.50 778.50 4565.00
1944778.50 616.50 568.50 432.00 275.50 140.50 29.00 23.50 74.50 202.00 618.00 820.00 4578.50
1945707.50 554.50 586.55b441.50a214.50 129.00 25.00 20.50 134.00a321.00 576.00 720.50 4430.55
1946755.50 591.40b569.00 414.50 188.50 195.50 57.50 18.00a154.50 451.50 640.50 706.00a4742.40
1947864.50 534.50 451.50 342.50a162.00 149.00 46.50 39.00 89.50 330.00 520.00a694.00 4223.00
1948765.00 688.00 628.50 533.00 293.00 70.50 41.00 49.00 152.50 396.00 628.00 866.50 5111.00
1949-----z667.50 534.00 331.50 194.50 99.50a56.50a26.50 84.00 469.00 430.50a738.50 3632.00a
19501014.00a629.00a611.50 438.00a290.50 131.00 18.00 19.50 95.50 366.00 523.50 523.50 4660.00
1951764.00 570.00 689.00 338.50 249.50 82.00 32.50 36.00 87.00 338.50 551.50 798.00 4536.50
1952792.00 626.00 603.00 358.00 250.34b206.00 37.50 61.50 100.00 259.00 798.00 751.00 4842.34
1953581.00 609.50 637.50 476.50 376.00 254.50 57.50 63.50 90.50 371.50 539.00 721.00 4778.00
1954796.50 652.50 692.00 481.50 286.00 240.00 79.50 81.00 177.50 435.50 482.00a782.50 5186.50
1955812.00a709.00 747.50 596.00a396.50 193.00 135.00 68.00a195.00 382.50 658.71b754.00 5647.21
1956748.00 844.50 667.50 432.50 235.50 226.00 66.00 55.00 121.00 435.00 702.50 792.50 5326.00
19571003.50a647.00 579.50 427.00 234.00 127.00 68.50 81.50 67.00 380.50 693.50 692.50 5001.50
1958744.50 482.00 644.00 457.50 176.00 99.50 7.00 0.50 132.50 331.00 565.00 631.50 4271.00
1959721.00 667.50 618.00 446.00 368.50 154.00 41.00 50.50 190.50 342.00 633.50 793.50 5026.00
1960914.00 674.00 634.00 458.50a392.50 124.50 37.50 95.50 139.00 356.50 600.00 815.00 5241.00
1961678.00 533.50 595.50 461.50 343.50 119.00 43.50 13.50 203.00 400.00 699.50 741.50 4832.00
1962879.50 664.50 672.50 403.50 436.00 185.00 83.50 70.50 100.00 384.00 544.00 725.50 5148.50
1963958.00 489.50 631.00 547.00 315.50 195.00 101.50 54.00 77.50 351.50 568.00 812.00 5100.50
1964749.00 699.50 672.00 527.00 414.50 204.00 86.00 88.50 195.00 356.50 694.50 769.00 5455.50
1965788.00 610.00 544.50 419.00 381.50 183.50 50.50 35.50 150.50 316.00 515.00 833.00 4827.00
1966787.50 680.00 633.50 416.50 294.50 153.50 62.00 41.50 94.50 385.50 546.00 656.50 4751.50
1967677.50 613.00 661.50 608.00 310.00 103.50 15.00 2.50 35.50 377.00 544.50 745.00 4693.00
1968784.50 471.15c554.00 531.50 350.50 165.00 46.00 81.50 155.50 436.00 551.50a826.00 4953.15
1969950.50 724.00 591.00 504.50 237.50 80.50 62.00 81.50 122.50 438.00 601.00 732.50 5125.50
1970744.50 565.00 586.00 558.50 330.00 116.00 50.00 51.00 191.00 414.00a572.00 789.00 4967.00
1971796.50 676.00 701.00 513.50 325.50 244.00 71.50 22.50 188.50a458.00 635.50 807.50 5440.00
1972823.00 645.50 516.21b566.50 271.50 118.00a31.00 31.50 211.50 379.50 520.50a891.21b5005.91
1973839.00 569.00 627.50 455.50 266.00 144.50 49.00 89.50 105.00 389.50 636.00 660.50 4831.00
1974886.50 673.00 602.50 471.00a371.50 134.00 82.00 39.50 45.00 387.00 571.50 682.00 4945.50
1975700.00 677.00 655.00 608.00 339.00 191.50 48.50 82.50 82.50 403.00 638.00 710.50 5135.50
1976743.00 697.50 672.00 520.00 339.50 250.00 64.00 73.50 90.00 355.00 544.50 833.00a5182.00
1977862.50 576.00 663.00 442.50 416.50 131.00 80.50a27.00 175.00 353.00 626.50 655.50 5009.00
1978718.50 519.75b475.71c439.00a341.00a101.00 51.00 53.50 166.00 348.00 752.50 890.00 4855.96
19791035.00 655.50 514.50 442.50 293.00 143.50 55.00 37.00 80.50 261.00 639.50 666.50 4823.50
1980856.00 634.50 599.00 418.00 341.50 209.50 45.00 75.00 113.00 341.50 538.50 686.00 4857.50
1981755.50 623.50 563.50 449.50 329.00 178.00 54.50 41.00 123.00 423.00 536.50 684.00 4761.00
1982840.50 641.50 620.00 539.50 302.00 122.50 68.00 44.00 128.00 361.50 690.00 742.50 5100.00
1983705.50 540.50 487.50 446.00 267.50 172.50 99.50 15.50 145.00 405.50 521.50 903.00 4709.50
1984717.00 612.00 493.00 508.00 371.00 214.50 39.00 37.00a137.50 453.50 596.00 841.50 5020.00
1985921.50 694.00 666.50 388.50 313.50 137.00 8.50 56.50 189.50 396.00 806.00 997.50 5575.00
1986691.50 596.50 436.50 473.50 332.50 95.50 81.00 7.50 209.00 305.50 541.00 797.50 4567.50
1987787.00 585.50 545.00 368.00 242.00 109.00 58.00a22.00 105.50 241.50 531.50 803.00 4398.00
1988807.50 624.50 575.50 404.00 345.00 161.00 52.00 40.50 126.00 242.00 552.00 775.00 4705.00
1989746.50 834.00 601.50 305.50 302.00 101.00 60.00 54.00 75.50a389.00 558.50 790.50 4818.00
1990704.00 693.50 536.50 365.50 334.00 140.50 24.00 34.50 46.50 429.00 566.00 966.50 4840.50
1991811.50 472.00 632.50 484.50 388.00 230.50 31.50 25.50 57.00 321.00 531.00 738.50 4723.50
1992672.50 510.50 447.00 339.00 168.00 74.00 19.00 27.00 124.50 310.50 575.00 807.50 4074.50
1993936.00 732.00 490.50 441.50 201.00 152.50 86.00 38.00 100.50 265.50a760.50 807.50 5011.50
1994674.00 671.50 494.00 403.50 245.50 173.50 30.00 16.50 73.50 402.50 728.00 719.00 4631.50
1995657.50 520.00 559.00 479.00 234.50 152.50 18.50 65.50 48.00 373.00 440.50 710.50 4258.50
1996706.00 664.00 543.00 387.50 363.00 152.50 26.50 28.00 155.00 386.00 583.50 698.00a4693.00
1997735.50 606.00 565.00 446.00 180.00 154.00 31.00 4.00 78.50 408.00 501.50 811.00 4520.50
1998677.50 563.00 548.00 459.00 327.50 129.50 13.50 17.50 76.00a375.00 528.00 795.50 4510.00
1999727.50 625.00 644.50 478.00 382.50 197.50 70.00 34.00 95.50 350.50 476.00 715.00 4796.00
2000791.50 627.00 636.00 402.50 282.00 117.00 48.50 58.50 124.00 363.00 709.50 779.00 4938.50
2001772.00 667.00 565.50 521.50 272.00 201.50 46.00 30.00 92.00 388.50 521.50 747.00 4824.50
2002749.00 609.00 644.50a431.00 354.00 149.00 21.00 46.00 86.50a390.50 566.50 675.50 4722.50
2003651.00 598.00 498.50 469.50 304.00 118.07b19.50 14.48b81.50 264.00 659.50 704.50a4382.55
2004-----z619.50 -----z-----z244.50 105.50 20.50 13.00 131.50 325.50 646.50 705.00 2811.50c
2005733.50 641.50 514.50 446.50 236.00a185.00 15.00 14.00 152.50 322.50 664.50 812.50 4738.00
2006647.50 657.00 640.00 413.50 251.50a95.00 24.00 37.50 106.50 393.00 555.00 772.50 4593.00
2007828.50 581.00 502.00 466.50 304.50 153.00 10.00 25.50 143.00 423.00 635.50 760.50 4833.00
2008873.00 661.00 684.50 554.00 299.00 230.50 36.00a46.50 122.50 409.50 501.50 847.00 5265.00
2009790.00 666.50 659.50 489.00 293.00 89.50 24.50 44.00 86.00 401.50a579.00a901.00 5023.50
2010627.50 531.00 584.50 483.00 373.00 179.00 47.50a54.50 101.00a358.00 596.50 664.00 4599.50
2011721.00 684.00 574.50 527.50a379.50 168.50 -----z13.00 69.00 348.00 615.50 816.50a4917.00a
2012749.00 643.00 669.50 403.50 318.00 181.50 33.50 20.50 91.50 327.00 516.00 711.00 4664.00
2013895.50 615.50 555.00 399.00 234.50 108.00 8.50 14.50 103.00 423.50 581.00a940.00 4878.00
2014763.00 663.00 506.50 410.00 214.00 114.00 6.00 9.00 43.00a201.50 591.00 606.00a4127.00
2015685.50 461.00 469.00 461.50 224.50 50.50 11.50 -----z-----z-----z-----z-----z2363.50e
Period of Record Statistics
MEAN780.89 624.28 581.58 437.94 295.79 147.65 45.35 42.19 127.54 357.81 586.98 751.42 4776.65
S.D.100.56 78.39 79.84 77.03 69.34 47.66 27.67 27.03 54.22 64.92 77.18 84.67 394.51
SKEW0.71 0.18 -0.45 -0.08 -0.08 0.29 0.62 0.96 0.66 -0.29 0.54 0.12 -0.19
MAX1105.00 844.50 749.00 608.00 436.00 257.50 135.00 142.50 333.00 541.50 806.00 997.50 5751.50
MIN581.00 461.00 353.50 248.50 137.50 50.50 2.50 0.50 23.50 200.00 425.00 523.50 3733.50
YRS117.00 121.00 118.00 119.00 121.00 119.00 117.00 119.00 119.00 118.00 118.00 119.00 102.00