HOOD RIVER EXP STN, OREGON

Monthly Total Heating Degree Days

(354003)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1893 1155.50 1022.00 800.50 674.50 419.00 337.00 109.50 75.50 318.00 598.82 a 743.00 787.00 7040.32
1894 938.50 970.50 793.00 558.00 359.50 273.50 45.00 42.00 297.00 537.00 589.00 998.00 6401.00
1895 1073.50 753.00 766.00 518.28 a 395.00 100.50 f 115.00 86.00 360.58 d 447.50 790.00 961.00 6265.85
1896 983.50 742.00 713.00 a 561.50 414.50 139.00 0.50 28.50 180.50 402.50 953.50 839.00 5958.00
1897 973.00 772.50 826.50 369.00 180.00 137.50 58.50 12.00 186.00 430.50 703.50 939.00 5588.00
1898 927.93 a 644.00 718.50 437.00 284.00 118.50 35.00 36.50 g 143.50 496.00 765.50 1062.50 5632.43
1899 950.00 887.00 720.00 527.68 b 463.50 201.00 35.50 154.00 94.50 490.50 537.50 851.50 5912.68
1900 0.00 z 0.00 z 278.50 j 374.00 241.50 41.00 25.00 64.00 166.00 430.50 705.00 726.00 2773.00
1901 907.00 752.50 629.50 507.00 262.00 217.24 a 63.50 13.00 224.50 163.50 g 606.00 809.50 4991.74
1902 995.00 764.50 684.50 499.50 277.00 151.50 81.00 44.00 167.00 334.50 701.50 997.50 5697.50
1903 902.50 845.00 678.50 503.50 272.00 76.50 71.09 b 38.00 171.00 376.50 530.00 h 943.00 4877.59
1904 824.00 857.00 794.50 378.50 218.11 c 98.00 30.00 18.00 74.00 345.00 555.50 806.50 4999.11
1905 928.45 a 826.50 503.50 314.00 248.50 63.00 13.00 38.50 118.50 532.50 712.00 921.00 5219.45
1906 850.95 a 720.74 a 741.50 298.00 271.50 144.50 0.00 8.50 109.00 304.50 662.00 825.00 4936.19
1907 1193.00 718.00 693.00 445.00 173.50 92.50 8.00 95.50 103.93 b 308.50 660.50 853.05 c 5344.48
1908 919.67 d 935.00 845.50 466.00 412.00 241.03 a 10.00 80.50 137.59 a 402.50 658.50 0.00 z 5108.29
1909 1313.07 c 601.00 f 643.50 477.50 359.00 85.00 57.35 a 67.68 a 132.50 390.50 715.50 1193.00 5434.60
1910 1160.00 908.50 534.00 368.00 196.00 131.00 37.50 70.00 186.96 b 371.50 f 743.00 830.00 5164.96
1911 978.00 851.50 610.50 516.00 398.50 169.50 14.50 40.50 266.00 513.50 0.00 z 864.50 5223.00
1912 1062.50 738.50 735.50 457.50 245.93 a 92.00 47.50 91.40 b 188.00 520.00 653.50 858.00 5690.33
1913 1016.80 a 877.50 722.00 469.50 285.00 82.00 28.50 32.00 125.50 391.93 c 516.00 h 962.50 4993.23
1914 848.00 735.00 551.80 a 406.00 201.00 177.50 19.50 17.50 255.50 397.83 a 686.00 1138.50 5434.13
1915 1044.00 708.00 519.00 355.50 296.50 118.00 36.34 b 5.00 168.50 436.50 737.50 851.00 5275.84
1916 1371.00 897.00 670.50 426.00 381.00 174.00 100.00 52.50 204.50 527.50 872.00 962.79 e 6638.79
1917 965.00 791.00 812.00 581.50 375.50 152.59 a 36.17 a 7.00 148.00 366.50 650.00 628.50 5513.75
1918 595.50 f 568.50 i 680.00 450.50 378.00 72.00 39.00 107.50 96.50 392.50 731.50 872.13 a 3819.63
1919 993.00 785.50 503.00 g 436.00 319.50 235.50 28.50 16.50 189.00 547.50 708.46 d 1336.00 5595.46
1920 979.50 810.88 c 686.00 591.00 291.50 g 161.50 17.00 67.00 212.50 382.00 f 730.50 858.00 5113.88
1921 901.50 717.50 635.50 c 498.62 a 220.00 73.00 26.50 35.13 a 276.21 a 420.16 c 721.00 320.50 s 4525.12
1922 1206.00 896.00 786.88 a 540.50 310.50 44.00 2.50 35.00 1088.40 e 417.50 252.00 u 1116.00 c 6443.28
1923 94.00 z 945.50 669.17 b 443.50 265.00 136.03 a 40.30 a 23.50 123.62 a 431.50 613.89 c 899.52 a 4591.53
1924 1060.95 b 634.50 654.10 a 397.50 b 178.25 c 110.00 45.00 50.50 184.44 c 452.71 b 764.00 1161.35 d 5693.30
1925 804.50 640.89 a 620.00 c 401.00 189.00 142.50 7.23 a 74.40 a 143.04 b 434.00 a 743.50 788.95 a 4989.01
1926 861.80 a 620.50 509.50 286.00 284.68 a 82.50 24.50 15.50 a 251.50 382.50 669.31 a 941.37 a 4929.66
1927 1041.71 b 700.50 646.50 468.50 339.00 46.00 h 39.50 52.50 180.50 395.00 553.00 986.50 5403.21
1928 1047.00 778.00 598.00 515.00 162.48 b 130.00 42.37 a 33.00 208.00 416.50 680.00 949.00 5559.35
1929 1163.00 1059.00 593.00 538.50 273.00 119.50 24.50 25.00 177.50 364.00 750.00 799.50 5886.50
1930 1471.50 669.00 568.50 343.00 319.00 152.50 25.50 9.50 134.00 508.00 734.00 956.00 5890.50
1931 880.00 742.50 675.00 417.00 172.00 138.50 8.00 24.50 196.00 429.00 814.00 1086.50 5583.00
1932 979.50 879.50 662.50 441.50 331.50 104.50 69.50 69.00 137.50 391.00 653.50 1053.00 5772.50
1933 907.00 860.50 679.50 452.00 383.50 159.00 21.00 40.50 261.50 331.50 632.50 740.00 5468.50
1934 710.00 595.00 450.50 230.50 197.00 89.00 26.50 13.50 190.50 344.50 595.50 817.50 4260.00
1935 999.00 721.00 747.50 525.50 296.00 116.00 73.00 61.50 107.50 491.00 872.50 973.00 5983.50
1936 913.00 1179.00 677.50 353.50 200.00 100.00 29.00 21.00 184.50 326.00 817.00 760.50 5561.00
1937 1385.50 865.50 632.00 515.50 266.50 118.50 24.00 61.00 149.00 297.50 612.00 808.50 5735.50
1938 886.00 801.00 706.00 407.50 269.70 a 90.00 31.50 46.00 63.62 a 419.50 770.00 846.50 5337.32
1939 788.50 821.50 601.00 399.50 231.50 188.00 54.00 36.50 127.50 386.00 654.50 763.00 5051.50
1940 968.50 720.50 534.00 398.00 174.00 57.00 12.00 21.00 94.00 325.00 792.50 908.50 5005.00
1941 924.50 682.00 522.00 364.50 270.00 126.00 3.00 57.50 214.00 434.00 651.00 837.50 5086.00
1942 1186.50 728.00 646.00 408.50 323.00 162.50 25.50 31.50 108.50 372.00 767.50 854.50 5614.00
1943 1171.00 765.00 703.00 384.00 350.00 179.00 35.00 56.50 79.50 433.00 713.00 931.00 5800.00
1944 991.50 765.50 669.00 475.00 279.00 150.50 30.50 49.50 119.50 318.00 741.00 984.50 5573.50
1945 819.00 698.50 722.00 494.50 264.50 169.50 17.50 25.00 199.00 392.50 760.50 959.00 5521.50
1946 854.00 724.00 654.50 466.00 226.50 183.50 48.50 39.50 172.00 532.00 792.00 809.50 5502.00
1947 998.00 644.50 546.00 379.00 138.00 143.50 16.50 51.00 127.00 409.00 638.00 822.50 4913.00
1948 912.50 857.50 736.00 519.00 293.50 54.00 62.00 45.50 221.00 463.50 721.03 a 1000.27 a 5885.80
1949 1352.63 a 841.50 658.00 396.21 a 207.00 119.50 52.50 38.00 132.41 a 540.50 586.20 e 840.10 a 5764.55
1950 1397.50 913.11 a 720.00 521.50 311.03 a 132.32 b 17.00 17.57 a 133.00 451.50 673.97 a 780.50 6069.00
1951 960.48 a 756.50 757.95 a 410.56 c 274.50 81.00 25.50 56.32 a 131.38 a 447.00 736.07 b 987.00 5624.26
1952 1115.50 795.00 687.00 421.50 265.00 176.00 13.95 a 37.00 89.00 260.92 a 870.00 a 902.00 5632.87
1953 643.00 645.56 a 627.00 477.50 351.50 229.50 65.50 45.00 114.11 b 360.78 b 635.69 a 734.38 b 4929.51
1954 994.07 a 748.50 724.88 a 467.07 a 227.00 187.50 72.00 87.32 a 156.50 496.00 564.00 e 894.35 a 5619.19
1955 706.50 f 728.00 b 623.50 f 614.00 348.00 140.00 125.50 66.81 b 206.90 a 430.50 875.17 a 981.84 b 4516.72
1956 1016.11 d 953.10 c 727.50 416.50 220.74 b 181.11 c 35.13 a 62.00 h 147.50 475.00 753.50 869.03 a 5795.23
1957 1358.00 801.11 a 698.50 423.00 194.50 118.85 d 75.43 a 69.75 a 76.55 a 461.00 712.24 a 794.12 a 5783.05
1958 819.00 572.44 a 688.72 a 484.00 130.41 b 69.00 15.50 13.00 156.50 390.50 724.04 d 784.30 a 4847.41
1959 902.50 753.00 653.14 b 427.50 364.50 115.50 53.50 43.50 180.50 379.50 778.89 c 886.27 c 5538.29
1960 1092.50 747.56 b 689.50 470.00 372.50 96.72 a 28.42 a 86.50 167.00 377.17 a 687.00 967.00 5781.86
1961 859.00 610.00 622.00 487.50 305.50 79.50 31.55 c 17.57 a 255.00 446.63 d 819.00 879.50 5412.75
1962 922.50 735.50 745.50 375.50 416.43 a 144.00 95.67 b 60.97 a 167.68 b 414.00 617.50 793.00 5488.25
1963 1037.50 660.50 647.00 547.00 293.00 164.50 88.50 62.50 88.00 389.50 649.50 978.00 5605.50
1964 828.00 696.00 704.00 521.00 372.50 196.00 84.00 112.00 229.00 458.50 786.00 1040.00 6027.00
1965 908.50 660.00 669.00 426.00 358.00 134.00 49.00 51.50 222.50 349.00 597.00 924.00 5348.50
1966 913.50 717.00 683.50 428.00 277.00 172.50 69.50 49.50 115.00 448.50 628.50 804.50 5307.00
1967 746.00 653.50 710.50 581.00 287.50 73.00 13.00 7.00 63.00 390.50 662.50 859.50 5047.00
1968 905.00 662.50 545.00 521.50 294.50 133.00 46.50 85.50 147.00 510.50 664.50 957.00 5472.50
1969 1225.00 811.00 627.50 469.50 208.50 65.50 52.00 62.50 145.00 495.50 655.00 881.50 5698.50
1970 964.00 631.56 a 652.50 557.00 297.50 108.00 38.00 37.50 253.00 507.00 705.50 935.00 5686.56
1971 860.00 673.56 a 789.00 536.00 262.00 214.00 68.50 19.50 258.50 486.50 707.50 874.00 5749.06
1972 928.50 762.00 591.50 584.00 239.00 117.50 23.00 36.50 260.50 475.00 629.50 1120.00 5767.00
1973 1035.00 717.50 647.50 449.50 270.00 158.00 54.50 88.50 163.50 438.50 791.00 790.50 5604.00
1974 1095.50 684.00 669.50 491.50 370.00 118.50 78.50 41.50 98.00 443.00 629.00 781.00 5500.00
1975 880.00 816.50 746.00 605.00 308.00 164.50 35.50 95.50 149.00 439.50 723.00 813.00 5775.50
1976 0.00 z 792.00 750.00 509.50 294.00 226.50 58.50 91.50 150.50 455.50 640.50 884.00 4852.50
1977 1078.50 684.00 682.00 374.00 407.50 75.00 63.00 35.00 225.50 461.00 768.00 821.00 5674.50
1978 940.50 707.00 565.50 488.00 361.00 102.41 a 40.00 71.00 240.50 427.00 851.50 958.50 5752.91
1979 1364.00 830.00 603.50 469.50 242.50 117.50 41.00 40.00 106.50 348.50 785.50 821.50 5770.00
1980 1153.50 842.00 673.50 412.00 293.00 209.50 44.00 83.00 152.00 433.00 651.50 812.50 5759.50
1981 785.00 729.50 582.00 475.50 297.00 182.68 b 80.00 37.20 a 173.00 490.50 649.66 a 850.50 5332.53
1982 879.50 789.50 682.00 582.00 324.00 114.50 64.50 40.00 189.00 497.00 822.50 903.50 5888.00
1983 827.50 670.00 543.50 466.50 242.50 164.00 90.00 25.50 238.00 463.50 605.00 1175.50 5511.50
1984 914.50 733.00 570.50 511.00 377.50 201.50 28.50 37.00 220.00 532.50 740.50 990.00 5856.50
1985 1050.00 841.50 713.00 408.00 269.50 140.50 18.00 77.50 279.50 498.00 994.50 1249.00 6539.00
1986 908.50 740.00 509.50 496.00 300.50 72.50 78.50 9.00 248.00 399.50 629.50 944.00 5335.50
1987 970.50 693.00 629.82 a 363.00 228.00 105.00 65.50 37.72 a 121.03 a 392.00 619.00 928.00 5152.57
1988 977.50 725.00 628.00 420.00 310.50 171.50 58.50 46.00 170.50 267.00 639.00 847.00 5260.50
1989 794.50 1005.50 708.00 361.00 268.50 88.00 70.00 52.50 115.50 427.50 571.00 878.50 5340.50
1990 768.00 764.00 584.50 341.00 309.50 131.50 22.00 31.00 51.50 470.50 578.50 1099.50 5151.50
1991 948.50 576.50 691.50 473.00 337.50 189.50 18.00 23.50 84.00 413.50 661.00 795.00 5211.50
1992 771.00 609.50 488.00 389.50 166.50 54.50 22.00 45.50 186.50 370.50 666.00 955.50 4725.00
1993 1145.00 873.50 702.50 484.50 179.50 135.50 87.50 62.00 140.50 343.50 873.50 896.50 5924.00
1994 744.50 818.50 576.50 376.00 219.50 147.50 21.00 13.00 68.00 446.00 786.50 869.00 5086.00
1995 935.50 637.00 640.00 479.00 215.50 139.00 23.00 84.00 83.50 444.50 570.00 885.50 5136.50
1996 879.50 937.00 626.00 423.50 367.00 150.00 37.50 51.00 226.50 457.50 728.50 954.50 5838.50
1997 954.00 709.50 656.50 503.50 196.50 121.00 34.00 23.00 121.50 473.50 657.50 865.50 5316.00
1998 916.00 675.00 616.50 453.00 287.50 94.50 7.50 34.50 88.50 473.50 616.50 929.50 5192.50
1999 788.50 727.00 681.00 512.50 362.00 167.50 77.00 31.00 159.00 439.00 574.50 750.50 5269.50
2000 908.00 739.00 652.50 339.00 246.00 99.00 39.00 36.50 169.00 443.50 820.50 948.00 5440.00
2001 899.50 764.00 589.00 479.00 238.50 157.50 50.50 25.50 88.00 467.00 666.00 850.50 5275.00
2002 834.50 670.00 695.00 454.00 294.00 83.00 28.50 41.00 130.50 491.50 694.50 834.50 5251.00
2003 753.00 665.00 559.50 446.50 280.50 79.00 16.50 14.00 106.50 351.00 800.00 881.50 4953.00
2004 1026.00 726.50 505.50 348.50 222.50 93.00 12.50 19.00 164.50 378.00 662.00 794.00 4952.00
2005 896.00 710.00 527.50 439.50 226.00 134.50 13.50 21.00 160.00 420.50 744.00 1039.50 5332.00
2006 764.00 760.50 667.00 413.50 246.00 100.00 24.50 27.50 117.00 442.50 700.50 957.50 5220.50
2007 1000.00 704.00 570.00 454.50 229.00 123.00 7.50 49.00 161.50 515.50 744.00 919.50 5477.50
2008 1017.00 691.00 693.50 593.00 270.00 190.00 38.00 64.50 165.50 512.50 660.00 1057.00 5952.00
2009 949.00 800.50 787.00 520.50 282.50 82.00 22.00 29.00 99.00 532.00 719.50 1094.50 5917.50
2010 842.50 679.00 649.50 520.00 383.00 170.50 50.00 50.00 151.00 400.00 743.00 937.00 5575.50
2011 870.00 791.00 734.00 597.50 393.50 163.50 54.50 1.50 67.50 367.35 a 682.50 922.00 5644.85
2012 947.00 795.50 756.00 486.00 361.50 188.50 27.00 18.00 94.00 302.50 h 650.50 866.50 5190.50
2013 1022.00 700.50 634.50 8.00 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 2357.00
Period of Record Statistics
MEAN 974.72 763.38 658.68 458.35 284.80 135.22 41.40 45.29 169.70 428.85 703.68 908.87 5518.65
S.D. 157.71 103.80 79.74 76.06 70.37 50.46 26.38 26.77 103.75 64.84 86.13 114.74 411.54
SKEW 0.99 0.99 -0.21 -0.03 0.14 0.73 0.81 0.92 5.90 -0.13 0.60 0.93 0.40
MAX 1471.50 1179.00 845.50 674.50 463.50 337.00 125.50 154.00 1088.40 598.82 994.50 1336.00 7040.32
MIN 643.00 572.44 450.50 230.50 130.41 41.00 0.00 1.50 51.50 260.92 537.50 628.50 4260.00
NO YRS 116 118 118 120 119 118 120 118 120 116 116 118 99