HOOD RIVER EXP STN, OR

Monthly Sum of Heating Degree Days (Degrees Fahrenheit)

(354003)

Base Temperature = 65 F

File last updated on May 26, 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
1893811.00i1024.92c800.50 642.66b419.00 337.00 109.50 75.50 318.00 570.56d716.71b776.11d5790.46a
1894707.00g970.50 793.00 558.00 359.50 269.29b45.00 42.00 297.00 537.00 589.00 998.00 5458.29a
1895619.00l753.00 766.00 501.00a395.00 100.50f115.00 86.00 298.00f447.50 790.00 946.03b4799.53c
1896939.00a707.26b668.79b561.50 414.50 139.00 0.50 25.34b167.27b402.50 565.50i805.00a4830.67a
1897947.22d772.50 826.50 370.02c180.00 137.50 58.50 12.00 186.00 428.28b582.50f701.50h3918.52b
1898898.00a624.63b718.50 437.00 284.00 118.50 35.00 36.50g143.50 487.24b765.50 1052.59b5564.46a
1899939.83b843.48c720.00 510.09b463.50 201.00 35.50 154.00 94.50 490.50 537.50 806.11d5796.01
1900-----z-----z278.50j374.00 241.50 41.00 25.00 64.00 166.00 430.50 662.70c699.31b2704.01c
1901879.50a752.50 629.50 507.00 262.00 210.00a63.50 13.00 224.50 163.50g606.00 809.50 4957.00a
1902995.00 764.50 657.00a499.50 277.00 151.50 81.00 44.00 167.00 334.50 701.50 997.50 5670.00
1903902.50 845.00 678.50 503.50 272.00 76.50 68.79b38.00 171.00 376.50 530.00h943.00 4875.29a
1904797.00a857.00 794.50 378.50 207.22d73.06d28.89d18.62b74.00 345.00 544.00a781.00a4898.79
1905898.50a795.50a487.00a314.00 248.50 63.00 13.00 38.50 118.50 532.50 680.00a921.00 5110.00
1906830.00d712.69d708.62b298.00 271.50a140.86b0.00 7.00a109.00 304.50a650.50a825.00 4857.67
19071193.00 718.00 693.00 436.07c173.50 77.16b8.00 95.50 100.46b301.00a660.50 823.89d5280.09
1908890.00d935.00 817.50a466.00 412.00 228.38b10.00 72.50a135.87c409.82c624.00a-----z5001.07a
19091230.00e571.00g643.50 463.50a359.00 85.00a57.41b64.66b118.50a390.50a697.12d1163.00a5272.18a
19101147.50c863.50a534.00 345.93b196.00 112.00a37.50 70.00a180.73b359.00i743.00 830.00 5060.16a
1911955.50a823.00a610.50 493.50a398.50 169.50 14.50 40.50 261.50a513.50 -----z864.50 5145.00a
19121037.59b713.00a735.50 443.50a238.00a92.00 47.50 81.11d188.00 499.14b643.02d827.50a5545.85
1913977.78d839.00a688.93c450.02b270.50a82.00 28.50a32.00 129.98b306.50g497.50i936.72b4435.43b
1914808.89d735.00 529.14b390.00a201.00 174.52b19.50 17.50a238.50a392.22d661.00a1094.50a5261.77
19151044.00 708.00 519.00 355.50 283.50a118.00 37.22d5.00 174.52b436.50 711.50a851.00 5243.74
19161335.00c872.00a670.50 418.00a381.00 174.00 100.00 52.50 204.50 527.50 872.00 931.73e6538.73
1917965.00 754.50a812.00 581.50 360.00a147.50a35.00a7.00 148.00 334.00a632.82b628.50 5405.82
1918549.00h532.50j680.00 450.50 372.00a70.50a39.00 94.66b96.50a392.50 731.50 837.93b3765.09b
1919977.59b785.50 503.00g423.61b319.50a235.50 28.50 16.50 189.00 547.50 680.92e1119.81e5323.92a
1920966.72b781.76d686.00 591.00 291.50g158.00a17.00 67.00 212.50 333.00i730.50 825.50a5035.98b
1921901.50 726.07e611.54e482.00a220.00 73.00 26.50 34.00a267.00a391.15e682.00a320.50s4414.76a
19221165.86b858.50a765.00b540.50 296.90b44.00 2.50 35.00 -----z417.50 221.50v856.00g4125.76c
1923-----z945.50 647.59b443.50 266.90b131.50a39.00a23.50 119.50a431.50 593.43c877.24b4519.15a
19241026.72b634.50 633.00a384.25b172.50c110.00 45.00 50.50 178.06e438.10b764.00 761.50h4436.64a
1925804.50 618.00a600.00c401.00 189.00 142.50 7.00a72.00a138.27b420.00a743.50 763.50a4899.27
1926834.00a620.50 509.50 286.00 275.50a82.50 24.50 15.52b251.50a382.50 647.00a911.00a4840.02
1927999.11c679.15b646.50 468.50 339.00 46.00h39.50 52.50 180.50 395.00 553.00 986.50 5339.26a
19281047.50 778.00 598.00 515.00 173.50 130.00 41.50 33.00 208.00 413.00 654.05b949.00 5540.55
19291163.00 912.37d588.00 534.00 270.00 119.50 24.50 25.00 177.50 364.00 751.50 799.50 5728.88
19301354.82c669.00 568.50 343.00 319.00 152.50 25.50 9.50 134.00 508.00 734.00 956.00 5773.82
1931880.00 742.50 675.00 417.00 172.00 138.50 8.00 24.50 196.00 429.00 814.00 1086.50 5583.00
1932979.50 879.50 662.50 441.50 304.50a104.50a69.50 69.00 137.50 391.00 653.50 1053.00 5745.50
1933907.00 832.50a679.50 452.00 383.50 159.00 21.00 40.50 261.50 331.50 632.50 740.00 5440.50
1934710.00 595.00 450.50 230.50 197.00 89.00 26.50 13.50 190.50 344.50 595.50 817.50 4260.00
1935971.90b721.00 747.50 525.50 296.00 116.00a73.00 61.50 107.50 491.00 853.95b973.00 5937.84
1936747.50f1179.00 677.50 353.50 200.00 100.00 29.00 21.00 184.50 326.00 817.00 760.50 4648.00a
19371360.34b865.50 632.00 515.50 266.50 118.50 24.00 61.00 149.00 297.50 612.00 808.50 5710.34
1938886.00 801.00 706.00 407.50 261.00a90.00 31.50 46.00 61.50a419.50 770.00 846.50 5326.50
1939788.50 767.94b601.00 399.50 231.50 188.00 54.00 36.50 114.00a386.00 654.50 763.00 4984.44
1940968.50 720.50 534.00 398.00 174.00 57.00 12.00 21.00 94.00 325.00 792.50 908.50 5005.00
1941924.50 682.00 522.00 364.50 270.00 126.00 3.00 57.50 214.00 434.00 651.00 837.50 5086.00
19421186.50 728.00 646.00 408.50 323.00 162.50 25.50 31.50 108.50 372.00 767.50 854.50 5614.00
19431171.00 765.00 703.00 384.00 350.00 179.00 35.00 56.50 79.50 433.00 713.00 931.00 5800.00
1944991.50 765.50 669.00 475.00 279.00 150.50 30.50 49.50 119.50 318.00 741.00 946.50a5535.50
1945819.00 698.50 722.00 494.50 264.50 169.50 17.50 25.00 199.00 392.50 760.50 939.50a5502.00
1946825.50a724.00 654.50 466.00 226.50 183.50 48.50a39.50 172.00 532.00 792.00 809.50 5473.50
1947998.00 644.50 546.00 379.00 138.00 140.50a16.50 51.00 127.00 409.00 638.00 822.50 4910.00
1948912.50 857.50 705.00a519.00 293.50 54.00 62.00 45.50a221.00 463.50 697.00a968.00a5798.50
19491309.00a841.50 658.00 383.00a207.00 119.50 52.50 38.00 128.00a540.50 566.66e813.00a5656.66
19501326.00a795.42c720.00 521.50 301.00a127.91b17.00 17.00a133.00 451.50 651.50a780.50 5842.33
1951929.50a756.50 733.50a396.87c274.50 81.00 25.50 54.50a127.00a447.00 711.54b987.00 5524.41
19521115.50 795.00 687.00 421.50 265.00 176.00 13.50a37.00 89.00 252.50a841.00a902.00 5595.00
1953643.00 622.50a600.50a477.50 351.50 229.50 65.50 45.00 110.30b349.14b614.50a710.69b4819.63
1954962.00a748.50 701.50a443.80b227.00 187.50 72.00 79.66b156.50 496.00 445.50f865.18c4939.64a
1955706.50f705.78c623.50f614.00 348.00 140.00 125.50 64.66b200.00a430.50 846.00a967.50c4441.94b
1956984.81e920.23c727.50 416.50 213.62b175.07c34.00a62.00h147.50 475.00 753.50 841.00a5688.73a
19571268.28b772.50a666.50a423.00 194.50 114.88d73.00a67.50a74.00a461.00 688.50a768.50a5572.16
1958819.00 552.00a666.50a484.00 126.21b69.00 15.50 13.00 156.50 390.50 699.90d759.00a4751.11
1959902.50 753.00 632.07b427.50 364.50 115.50 53.50 43.50 180.50 379.50 752.93c857.68c5462.67
19601092.50 722.08c689.50 458.50a372.50 93.50a27.50a86.50 167.00 365.00a687.00 967.00 5728.58
1961859.00 610.00 622.00 487.50 305.50 79.50 30.54c17.00a255.00 432.22d819.00 879.50 5396.76
1962922.50 735.50 745.50 360.50a403.00a144.00 92.59b59.00a162.09b414.00 617.50 793.00 5449.18
19631037.50 660.50 647.00 547.00 293.00 164.50 88.50 62.50 88.00 389.50 649.50 978.00 5605.50
1964828.00 696.00 704.00 521.00 372.50 196.00 84.00 112.00 236.66b435.50a786.00 991.55b5963.21
1965908.50 660.00 669.00 426.00 358.00 134.00 49.00 51.50 222.50 349.00 597.00 924.00 5348.50
1966913.50 717.00 683.50 428.00 277.00 172.50 69.50 49.50 115.00 448.50 628.50 804.50 5307.00
1967720.50a653.50 710.50 581.00 287.50 73.00 13.00 7.00 63.00 390.50 662.50 859.50 5021.50
1968905.00 662.50 545.00 521.50 282.50a133.00a46.50 85.50 147.00 502.00a664.50 957.00 5452.00
19691225.00 811.00 627.50 469.50 208.50 65.50 52.00 62.50a145.00 495.50 655.00 881.50 5698.50
1970964.00 614.52c652.50 557.00 297.50 108.00 38.00 37.50 253.00 507.00 705.50 935.00 5669.52
1971860.00 649.50a789.00 519.50a262.00 214.00 68.50 19.50 252.50a486.50 707.50 874.00 5702.50
1972928.50 762.00 591.50 584.00 239.00 117.50 23.00 36.50 260.50 475.00 613.50a969.44d5600.44
19731035.00 717.50 647.50 449.50 270.00 158.00 54.50 88.50 163.50 438.50 791.00 790.50 5604.00
19741095.50 684.00 669.50 491.50 370.00 118.50 78.50 41.50a98.00 443.00 629.00 781.00 5500.00
1975880.00 816.50 723.50a605.00 308.00 164.50 35.50 95.50 149.00 439.50 723.00 813.00 5753.00
1976-----z792.00 750.00 509.50 294.00 226.50 58.50 89.50a151.21b455.50 640.50 884.00 4851.21a
19771078.50 667.00a682.00 374.00 407.50 75.00 63.00 35.00 211.50a461.00 734.50a821.00 5610.00
1978940.50 707.00 565.50 488.00 361.00 99.00a40.00 71.00 240.50 427.00 851.50 958.50 5749.50
19791364.00 830.00 591.72b469.50 242.50 117.50 41.00 40.00 106.50 338.28b785.50 821.50 5748.00
19801153.50 842.00 673.50 384.77b293.00 209.50 44.00 83.00 152.00a433.00 651.50 812.50 5732.27
1981785.00 729.50 582.00 471.77b297.00 176.59b80.00 36.00a173.00 478.00a628.00a850.50 5287.36
1982879.50 758.60b682.00 565.50a324.00 114.50 64.50 40.00 195.75b498.33d794.00a868.50a5785.18
1983800.89c650.50a543.50 466.50 242.50 164.00 90.00 25.50 238.00 463.50 605.00 1175.50 5465.39
1984881.50a733.00 570.50 511.00 377.50 201.50 28.50 37.00 220.00 532.50 740.50 990.00 5823.50
19851050.00 832.14c713.00 408.00 269.50 140.50 18.00 77.50 279.50 480.00a994.50 1249.00 6511.64
1986868.00a740.00 492.00a496.00 300.50 72.50 78.50 9.00a239.50a385.00a603.00a944.00 5228.00
1987938.50a693.00 609.00a363.00 228.00 105.00 65.50 45.50 119.00 392.00 596.00a928.00 5082.50
1988977.50 725.00 628.00 420.00 310.50 171.50 58.50 46.00a170.50 247.50a639.00 816.00a5210.00
1989794.50 990.17b708.00 361.00 268.50 88.00 70.00 52.50 115.50 427.50 571.00 878.50 5325.17
1990768.00 735.75b584.50 341.00 305.00a131.50 22.00 31.00 51.79b460.18c577.77d1062.12e5070.60
1991922.76b564.40b691.50 472.59c337.50 189.50a18.00 23.50 76.12b403.50a633.50a768.10b5100.98
1992743.00a609.50 488.00 386.00a166.50a54.50 22.00 45.50a176.00a370.50 666.00 914.00a4641.50
19931108.39c873.50 685.71c484.50 172.50c135.50a87.50 62.00 134.00 332.50a828.00a896.50 5800.61
1994734.46c818.50 548.50a376.00 219.50 147.50 21.00 13.00 68.00 446.00 759.00a854.46c5005.93
1995902.00a618.00a640.00 479.00 215.50 139.00 23.00 84.00 84.41b444.44d553.69c885.50 5068.54
1996846.00a830.48d609.83b421.54b367.00 145.50 37.50a51.00 226.50 442.50a728.50 927.00a5633.34
1997954.00 694.00a656.50 490.00a196.50 126.50 34.00 23.00 121.50 448.97b640.00a838.39c5223.36
1998916.00 675.00 590.36c434.50a287.50 94.50a7.50 34.50 88.50 473.00 602.50a925.50 5129.36
1999755.69b727.00 672.00 512.50 350.00a162.00a77.00 31.00 159.00 423.62b564.38d754.04e5188.23
2000878.00a710.37b636.50a337.50a232.50c99.00a39.00 36.50a169.00 434.46c783.54c918.10b5274.48
2001867.50a745.00a581.67d465.61c245.00 157.50 56.00 26.38b92.50 450.50a666.00 850.50 5204.16
2002803.50a670.00 675.50a442.25b304.50 83.00 28.50 35.17b120.83c508.33d676.32b814.00a5161.91
2003760.50 659.50 560.50 448.50a268.50 79.00 16.50 13.00 103.50 349.50 780.85c873.00 4912.85
2004996.11d726.50 515.00 354.00 227.00a89.50 12.50 21.50 168.00 378.00 667.50 772.00a4927.61
2005900.00 682.00a517.50a444.50 234.11c130.50 8.50 16.50 160.00 400.50a723.50a1010.00a5227.61
2006738.00a736.27b644.50a385.50a241.00a113.50a25.34b27.50 117.00 435.00a669.07b957.50 5090.19
20071000.00 684.50a549.64c433.50a236.00 123.00 8.33d49.00 161.50 510.00a714.00a882.32c5351.80
2008986.50a666.50a660.00d593.00 276.21b175.50a38.00 64.50 165.50 512.50 660.00 1014.50a5812.71
2009949.00 800.50 787.00 520.50 282.50 82.00 26.00 26.00 107.00 516.72b718.50 840.00g4815.72a
2010842.50 679.00 655.50 501.50a389.50 177.11b50.00a46.15e145.50 385.00a743.00 937.00 5551.76
2011870.00 791.00 734.00 597.50 393.50 163.50 54.50 1.50 67.50 355.50a682.50 922.00 5633.00
2012947.00 795.50 756.00 486.00 361.50 188.50 27.00 18.00 94.00 302.50h650.50 866.50 5190.50a
20131022.00 700.50 403.50l335.00k275.50a119.90d-----z-----z-----z-----z-----z-----z2117.90h
2014-----z-----z-----z-----z-----z-----z14.00 8.50 80.00 290.00 760.00 835.00 1987.50f
2015812.50 583.50 493.00 458.00 -----z-----z-----z-----z-----z-----z-----z-----z2347.00h
Period of Record Statistics
MEAN956.66 750.12 650.87 454.23 283.27 133.91 41.10 44.40 158.28 423.81 693.46 888.08 5414.25
S.D.151.49 99.18 80.59 75.24 69.71 49.99 26.35 26.30 57.58 66.14 81.88 102.10 375.10
SKEW0.85 0.98 -0.18 -0.02 0.16 0.74 0.81 0.91 0.42 -0.22 0.55 0.72 -0.02
MAX1364.00 1179.00 826.50 642.66 463.50 337.00 125.50 154.00 318.00 570.56 994.50 1249.00 6538.73
MIN643.00 552.00 450.50 230.50 126.21 41.00 0.00 1.50 51.79 247.50 537.50 628.50 4260.00
YRS113.00 119.00 118.00 121.00 120.00 119.00 121.00 119.00 119.00 116.00 114.00 115.00 91.00