PENDLETON WSO AIRPORT, OREGON

Monthly Total Heating Degree Days

(356546)

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
1928 1084.00 824.50 538.00 454.50 132.00 70.00 4.00 4.50 141.50 392.50 667.00 956.00 5268.50
1929 1276.50 1139.50 556.50 490.00 208.00 55.50 3.00 4.00 178.00 491.50 944.00 834.00 6180.50
1930 1658.50 c 595.50 537.00 285.50 235.00 65.50 0.00 0.52 a 107.50 488.50 748.00 976.50 5698.02
1931 809.00 702.50 594.50 347.50 100.00 35.50 0.00 0.00 152.50 488.50 872.00 1087.00 5189.00
1932 1013.50 919.50 629.00 496.50 359.00 147.50 6.50 12.50 97.50 346.50 545.50 1039.50 5613.00
1933 814.00 873.00 553.50 375.00 297.00 33.00 1.50 13.00 135.00 299.50 645.50 641.50 4681.50
1934 662.50 569.00 388.00 180.00 124.50 69.00 23.00 8.00 188.50 365.50 551.00 800.50 3929.50
1935 921.00 693.50 650.50 512.00 220.00 48.00 23.00 13.50 49.00 444.50 883.00 1020.00 5478.00
1936 905.50 1324.00 682.00 307.50 134.00 60.50 0.00 3.00 105.50 275.50 888.00 789.00 5474.50
1937 1577.50 858.50 575.50 472.00 206.00 76.50 3.10 a 28.50 98.00 260.50 616.50 849.00 5621.60
1938 913.50 805.00 628.50 387.50 234.00 64.00 8.50 4.00 24.00 347.50 789.50 865.50 5071.50
1939 770.00 825.50 570.00 336.50 153.50 102.00 6.50 3.00 68.50 346.00 657.00 737.50 4576.00
1940 1051.50 673.50 471.50 354.00 128.50 31.50 2.50 0.00 62.50 272.00 882.00 892.00 4821.50
1941 962.00 670.50 488.50 339.50 235.50 73.50 0.00 21.00 171.00 443.50 616.50 817.50 4839.00
1942 1341.00 767.50 618.00 353.00 271.00 103.50 2.50 16.00 46.00 298.00 745.50 818.50 5380.50
1943 1232.50 783.00 700.50 341.00 300.00 143.00 10.00 14.00 21.00 372.50 753.00 1014.00 5684.50
1944 1004.00 810.50 693.00 408.50 230.00 112.50 15.00 18.00 109.50 303.50 729.50 1011.50 5445.50
1945 890.50 705.00 678.00 472.50 182.50 97.00 1.50 8.50 147.00 299.50 685.50 972.50 5140.00
1946 813.00 668.50 634.50 386.50 166.50 100.00 3.00 5.00 131.00 504.00 803.00 856.50 5071.50
1947 1068.50 701.50 520.00 357.00 92.50 89.00 1.00 15.50 99.00 344.50 702.00 838.50 4829.00
1948 976.50 863.00 735.00 505.00 319.00 25.50 20.48 c 8.94 e 176.50 458.00 693.50 1073.50 5854.92
1949 1495.00 875.50 673.50 312.50 142.00 78.00 5.00 8.00 81.00 513.00 586.50 872.50 5642.50
1950 1502.00 899.00 711.50 490.00 281.00 113.50 7.50 7.50 95.50 393.50 700.80 e 798.50 6000.30
1951 971.50 770.00 755.50 388.00 217.00 62.50 8.00 20.50 73.00 436.00 733.50 1070.00 5505.50
1952 1116.00 758.00 686.00 339.50 191.50 92.50 8.27 a 12.00 60.50 233.50 932.50 893.00 5323.27
1953 470.50 f 671.50 609.50 468.00 325.50 c 162.50 1.00 14.50 68.00 355.31 e 579.50 778.50 4033.81
1954 946.00 727.50 766.00 462.50 209.00 148.50 12.00 25.50 119.00 458.50 557.50 939.00 5371.00
1955 968.00 810.50 814.50 566.00 323.00 58.50 44.00 1.00 161.50 378.00 903.00 983.00 6011.00
1956 961.00 1063.00 668.00 336.50 186.00 103.00 1.00 22.50 68.50 437.50 832.24 a 887.12 a 5566.36
1957 1427.00 810.50 660.00 378.50 137.50 30.50 1.00 5.00 64.00 493.00 719.50 735.50 5462.00
1958 842.50 509.50 688.50 453.50 95.00 21.50 1.50 0.00 104.50 333.00 693.50 824.50 4567.50
1959 901.00 763.50 619.50 399.00 303.50 56.50 12.00 14.50 156.00 359.50 824.50 974.00 5383.50
1960 1229.00 754.00 651.50 399.00 290.00 42.50 0.00 45.50 76.50 354.50 676.50 1068.50 5587.50
1961 866.50 548.50 581.50 443.00 243.00 27.50 0.00 0.00 173.50 464.50 860.50 871.00 5079.50
1962 1014.50 706.00 668.00 340.50 342.50 90.00 16.50 18.50 70.50 381.50 594.50 797.00 5040.00
1963 1177.00 623.00 606.50 510.00 211.50 65.50 9.00 11.00 59.50 314.00 620.00 1003.00 5210.00
1964 767.50 695.00 669.50 494.50 264.00 72.50 8.00 32.00 96.50 405.50 748.00 997.00 5250.00
1965 918.50 671.00 757.50 365.00 229.50 45.50 16.00 19.00 160.00 235.00 610.00 871.50 4898.50
1966 828.50 708.00 607.50 390.00 200.50 79.50 20.00 11.50 51.50 342.00 597.50 743.00 4579.50
1967 700.50 630.00 667.00 576.50 222.50 23.50 0.00 0.00 25.00 313.00 718.00 874.50 4750.50
1968 859.50 644.00 513.50 469.00 181.50 50.00 0.50 17.50 75.00 442.00 673.00 984.00 4909.50
1969 1334.50 827.00 631.50 456.50 144.50 34.50 1.00 12.50 82.50 487.50 655.00 934.00 5601.00
1970 1014.00 715.50 668.00 577.50 235.50 87.00 0.50 1.00 266.00 547.00 738.50 910.50 5761.00
1971 774.50 705.00 759.00 469.00 173.00 99.00 13.00 9.00 188.50 435.00 640.00 872.00 5137.00
1972 963.00 800.00 536.00 522.50 177.50 30.00 5.50 4.50 169.50 432.00 672.00 1177.50 5490.00
1973 1047.00 744.00 597.00 442.50 174.50 75.50 1.00 17.50 101.50 380.00 674.00 728.00 4982.50
1974 1072.50 595.00 578.50 398.50 249.00 30.50 8.50 0.00 41.50 321.00 608.00 758.50 4661.50
1975 865.00 727.50 615.50 526.00 201.50 61.50 0.50 15.00 46.00 340.50 682.50 760.00 4841.50
1976 801.00 786.50 688.00 445.00 213.00 90.50 4.00 42.00 32.00 371.00 668.50 903.50 5045.00
1977 1199.50 659.50 645.00 306.00 311.50 27.50 21.00 37.00 209.50 467.00 800.50 936.50 5620.50
1978 1018.00 720.00 600.00 510.50 330.50 50.50 9.00 43.00 152.50 411.50 944.50 1101.50 5891.50
1979 1541.00 765.50 590.50 438.50 190.50 65.50 13.00 0.50 48.00 334.00 908.50 830.50 5726.00
1980 1220.00 838.50 735.00 395.00 273.50 150.50 4.50 36.00 93.00 445.00 690.00 802.50 5683.50
1981 894.00 732.50 601.00 441.00 281.00 131.00 21.50 1.00 132.50 446.50 623.50 862.00 5167.50
1982 929.50 754.50 667.50 523.50 261.50 76.00 24.00 8.50 174.50 442.00 832.50 910.00 5604.00
1983 749.00 596.00 534.00 479.00 246.00 101.00 44.50 1.50 189.00 390.00 575.00 1296.50 5201.50
1984 943.00 735.00 566.00 505.00 326.00 139.50 4.00 0.00 187.00 495.50 696.50 1073.00 5670.50
1985 1202.00 882.00 674.50 358.50 229.00 68.50 4.00 25.00 247.50 458.00 1157.50 1410.50 6717.00
1986 904.50 728.00 503.00 452.00 283.00 27.50 34.50 0.00 218.00 341.50 684.50 1038.50 5215.00
1987 1071.50 725.50 576.00 339.00 206.00 73.50 26.50 13.00 68.50 340.00 673.00 1000.50 5113.00
1988 1013.00 695.50 647.00 394.50 270.50 128.50 23.00 5.50 124.00 214.00 620.50 965.00 5101.00
1989 829.50 1119.50 700.00 363.00 288.00 43.50 11.00 19.00 80.50 410.00 613.50 987.00 5464.50
1990 788.00 760.00 598.50 306.00 272.00 94.50 9.50 16.00 13.00 429.00 589.00 1216.50 5092.00
1991 1047.00 568.00 694.00 463.00 345.50 170.00 5.50 3.00 56.50 424.00 714.50 872.00 5363.00
1992 817.00 656.50 535.00 369.00 131.50 39.00 11.50 29.50 136.50 339.00 758.50 1022.50 4845.50
1993 1239.50 1031.50 716.00 441.00 157.50 104.00 31.50 37.50 116.50 326.00 912.00 911.00 6024.00
1994 744.00 844.50 568.00 327.50 178.50 87.00 15.50 0.00 32.00 416.00 738.00 921.00 4872.00
1995 934.50 653.00 612.00 482.00 242.00 131.50 1.50 29.50 56.00 459.50 568.50 947.50 5117.50
1996 947.00 847.50 672.00 391.50 326.00 69.00 8.50 5.50 157.50 431.50 741.50 918.00 5515.50
1997 1003.50 739.50 607.50 491.00 191.50 89.50 14.50 0.00 78.00 425.50 671.00 934.50 5246.00
1998 839.50 619.00 594.00 448.00 277.00 42.00 0.00 4.00 58.50 438.00 586.50 894.50 4801.00
1999 745.50 635.00 669.00 526.03 a 343.50 113.00 20.50 20.50 121.00 439.50 594.31 a 836.50 5064.34
2000 914.00 748.00 664.36 b 330.50 225.00 59.00 7.50 14.00 142.00 475.00 899.50 1052.50 5531.36
2001 1001.00 826.50 640.00 531.00 243.50 127.50 15.00 5.50 52.00 427.50 684.50 897.45 a 5451.45
2002 868.50 734.00 746.00 453.00 279.00 69.00 6.50 12.00 114.50 510.00 722.00 796.00 5310.50
2003 756.50 737.00 509.50 455.00 265.50 35.00 1.50 0.00 78.00 306.00 787.50 920.00 4851.50
2004 1132.50 737.50 492.00 376.50 202.00 73.00 0.00 3.50 91.50 300.50 666.00 792.50 4867.50
2005 913.00 770.50 564.50 437.00 203.00 103.00 1.50 3.50 139.00 376.00 788.50 1085.50 5385.00
2006 708.00 814.00 655.00 436.00 245.00 63.00 5.00 11.00 109.00 463.00 682.50 996.50 5188.00
2007 1063.50 747.00 576.00 468.00 219.00 79.00 0.00 15.50 148.00 476.50 764.50 912.00 5469.00
2008 1039.00 703.00 722.00 564.00 222.50 120.00 3.50 22.00 108.00 0.00 z 641.00 1122.50 5267.50
2009 976.50 816.50 766.50 482.00 234.50 35.00 0.50 6.50 70.50 531.50 693.00 1175.00 5788.00
2010 788.00 630.50 610.00 477.00 352.50 127.00 18.00 27.00 81.00 401.00 834.50 946.50 5293.00
2011 918.00 801.00 653.50 596.00 363.50 156.00 16.00 4.00 66.50 414.50 719.50 1021.00 5729.50
2012 906.00 818.50 662.00 406.50 270.00 131.50 10.00 9.00 59.50 398.50 637.50 793.00 5102.00
2013 1040.00 683.50 582.50 14.50 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 2306.00
Period of Record Statistics
MEAN 997.09 757.97 628.37 427.57 232.71 79.24 9.23 12.45 106.89 395.26 719.19 930.57 5296.25
S.D. 210.26 128.91 77.43 78.36 66.22 37.77 9.84 11.38 54.43 74.35 113.63 131.80 428.34
SKEW 1.14 1.54 -0.22 -0.21 -0.03 0.46 1.51 1.04 0.59 -0.27 1.00 0.81 0.08
MAX 1658.50 1324.00 814.50 596.00 363.50 170.00 44.50 45.50 266.00 547.00 1157.50 1410.50 6717.00
MIN 662.50 509.50 388.00 180.00 92.50 21.50 0.00 0.00 13.00 214.00 545.50 641.50 3929.50
NO YRS 85 86 86 85 85 85 85 85 85 84 85 85 83