MALHEUR BRANCH EXP STN, OREGON

Monthly Total Heating Degree Days

(355160)

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
1942 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 s 29.50 81.00 368.50 803.00 974.00 2256.00
1943 1131.00 893.50 770.00 290.69 a 288.30 a 108.50 7.50 19.00 25.00 365.00 784.50 1005.50 5688.49
1944 1339.00 857.50 763.50 421.50 185.00 108.00 1.00 0.00 127.00 334.50 832.00 1136.50 6105.50
1945 1109.80 a 748.00 725.00 476.50 194.50 95.00 0.00 a 7.00 202.50 367.50 784.50 1076.50 5786.80
1946 1115.00 897.00 622.50 359.50 179.50 35.50 4.00 1.00 160.86 a 564.00 786.50 903.50 5628.86
1947 1284.50 751.00 584.50 406.50 76.50 104.50 0.00 8.78 a 136.50 362.50 806.00 1008.00 5529.28
1948 1015.50 860.00 768.80 a 504.00 257.50 9.50 8.00 10.50 131.00 436.00 820.00 1293.00 6113.80
1949 1705.50 939.50 634.00 326.50 135.50 54.50 4.00 0.00 98.00 605.53 a 753.50 1065.00 6321.53
1950 1280.00 995.00 771.00 475.50 275.50 89.00 3.50 9.50 118.50 333.00 735.50 887.50 5973.50
1951 1115.50 838.50 801.00 361.00 192.72 a 93.00 0.00 31.00 a 100.34 a 493.00 854.48 a 1112.50 5993.04
1952 1224.50 1071.00 822.00 336.00 170.50 72.00 3.50 3.00 48.00 311.00 908.00 1004.00 5973.50
1953 775.50 756.00 666.00 476.50 328.00 115.50 0.00 5.00 69.50 391.50 679.00 1046.50 5309.00
1954 903.50 745.50 752.50 423.50 163.50 144.50 5.50 24.50 129.50 489.00 719.50 1143.50 5644.50
1955 1309.50 1089.50 858.00 566.00 268.00 26.00 37.20 a 0.00 164.00 438.00 952.00 976.50 6684.70
1956 1065.50 1083.50 662.00 359.00 163.00 72.00 8.50 23.50 107.50 484.50 904.00 1068.50 6001.50
1957 1442.50 965.50 638.00 420.00 159.00 45.00 0.50 1.00 73.00 472.50 855.50 974.00 6046.50
1958 1128.50 704.00 738.00 485.00 103.00 37.50 1.50 0.00 134.00 370.50 788.50 904.50 5395.00
1959 945.50 759.00 707.50 365.50 300.00 23.50 5.00 8.50 185.50 430.50 903.00 1141.50 5775.00
1960 1278.50 915.00 684.50 406.50 279.50 11.00 0.00 58.00 51.50 453.00 765.50 1124.50 6027.50
1961 1109.00 690.50 636.00 439.00 179.50 1.50 0.00 0.00 211.50 499.00 891.50 1102.00 5759.50
1962 1410.00 975.00 769.00 331.00 233.50 46.00 2.50 15.50 75.00 457.50 724.50 959.50 5999.00
1963 1231.00 653.00 624.00 514.50 142.50 71.00 0.00 0.00 37.50 315.50 743.00 1184.00 5516.00
1964 1241.50 1182.50 814.50 498.00 263.50 84.50 0.00 55.50 155.00 427.00 825.50 1019.00 6566.50
1965 1093.00 786.50 794.50 357.00 254.50 54.50 2.50 21.00 222.00 376.00 684.00 1092.00 5737.50
1966 949.50 828.50 647.00 415.00 145.00 79.50 6.00 16.50 35.50 503.50 675.50 1023.00 5324.50
1967 941.00 752.00 693.50 571.50 220.50 38.00 0.00 0.00 32.00 471.00 735.50 1177.00 5632.00
1968 1135.00 727.00 571.00 509.50 200.50 28.50 0.00 57.00 125.00 493.50 777.00 1022.00 5646.00
1969 1101.50 917.00 728.50 380.00 102.00 60.00 0.00 3.50 77.50 559.50 815.50 981.50 5726.50
1970 967.50 714.50 698.00 595.00 194.50 50.50 0.00 0.00 228.00 539.00 745.50 1085.00 5817.50
1971 1022.50 775.00 773.00 415.50 139.50 75.00 3.00 1.50 209.00 486.50 827.50 1165.50 5893.50
1972 1190.50 952.50 615.50 490.50 149.00 30.00 10.50 0.00 215.50 397.50 780.00 1379.50 6211.00
1973 1128.50 773.50 643.50 421.00 165.50 61.50 3.00 2.00 120.50 458.50 764.50 920.50 5462.50
1974 1193.00 767.50 663.50 421.00 240.50 26.50 12.50 3.50 71.50 423.00 751.50 1116.50 5690.50
1975 1285.50 871.00 729.50 583.50 238.50 65.00 0.50 21.00 75.00 423.50 860.50 1119.50 6273.00
1976 1211.50 1021.00 836.50 483.50 117.00 80.00 0.00 35.00 74.00 476.00 794.50 1194.50 6323.50
1977 1465.50 932.50 731.50 287.50 294.50 0.50 7.00 36.50 151.00 429.00 835.00 894.50 6065.00
1978 958.50 767.50 556.00 477.00 278.00 62.00 0.50 46.50 186.00 430.50 936.50 1296.00 5995.00
1979 1630.00 979.50 662.00 495.50 175.00 57.50 11.50 11.00 39.50 357.00 944.50 1041.00 6404.00
1980 1116.50 792.00 723.50 347.00 224.00 136.00 1.50 30.50 141.00 484.00 839.00 1068.50 5903.50
1981 994.00 838.50 665.50 419.00 243.50 92.00 16.50 3.50 127.50 546.00 681.00 999.50 5626.50
1982 1355.50 1076.50 712.50 561.50 253.00 78.50 24.50 2.00 158.00 480.50 912.00 1118.50 6733.00
1983 1116.00 731.50 619.00 523.00 265.50 53.00 37.00 1.00 148.50 432.00 697.00 1269.50 5893.00
1984 1324.50 1111.00 729.50 501.50 310.50 132.00 0.00 0.00 202.50 575.00 784.00 1377.00 7047.50
1985 1502.00 1130.50 842.50 340.50 189.50 46.00 0.50 19.00 319.00 591.00 1145.50 1667.50 7793.50
1986 1359.00 790.00 532.00 449.00 279.00 12.00 36.50 0.00 254.00 427.50 757.50 1160.50 6057.00
1987 1293.00 787.00 647.00 279.50 116.50 46.00 20.00 10.00 84.00 370.50 756.00 1017.00 5426.50
1988 1347.50 908.00 666.00 388.50 240.00 50.00 5.50 0.00 171.50 216.00 771.00 1233.50 5997.50
1989 1494.00 1369.00 769.00 369.50 236.50 22.50 0.00 32.00 93.00 474.00 845.50 1107.00 6812.00
1990 999.00 901.50 629.50 272.50 252.50 70.50 9.00 12.00 3.50 499.50 779.00 1440.50 5869.00
1991 1311.00 756.00 693.00 469.00 276.00 99.00 0.00 0.00 82.50 398.50 838.00 1084.00 6007.00
1992 1053.00 725.50 488.50 325.00 70.00 41.00 17.00 33.50 152.50 400.00 879.00 1227.50 5412.50
1993 1323.50 1142.00 827.50 482.50 136.00 136.50 40.00 57.00 120.00 388.50 1011.00 982.00 6646.50
1994 1014.00 905.00 577.50 365.00 146.50 78.00 7.00 0.00 23.50 459.50 1017.00 0.00 z 4593.00
1995 1024.00 677.50 671.50 468.50 200.00 0.00 z 12.50 37.50 82.00 551.50 738.00 1027.50 5490.50
1996 1037.00 921.00 653.00 461.00 283.00 67.50 3.00 16.00 192.50 466.00 762.50 1034.00 5896.50
1997 1058.50 823.00 652.50 502.50 161.50 34.00 19.00 0.00 90.00 495.50 766.00 1066.00 5668.50
1998 967.50 727.00 656.00 449.50 251.50 0.00 z 0.00 0.00 43.50 433.50 669.50 1125.50 5323.50
1999 945.50 867.00 684.50 497.50 289.00 95.50 12.00 6.50 120.50 411.00 666.00 1062.50 5657.50
2000 1046.50 721.00 672.50 326.00 167.50 56.00 4.00 0.00 173.50 425.00 945.50 1067.50 5605.00
2001 1176.00 927.50 606.00 503.50 168.50 67.50 5.50 1.50 0.00 z 0.00 z 698.50 1072.00 5226.50
2002 1040.50 0.00 z 755.00 413.00 237.00 61.50 0.00 4.50 100.00 468.00 0.00 z 899.50 3979.00
2003 911.50 767.50 590.00 466.00 235.00 18.50 0.00 0.00 88.00 292.00 868.00 879.50 5116.00
2004 1229.50 992.00 515.00 330.50 213.00 37.50 0.50 18.00 117.00 373.50 811.00 967.00 5604.50
2005 1082.00 829.00 611.50 434.00 197.50 101.00 2.00 4.50 153.50 406.00 865.50 1278.50 5965.00
2006 949.50 884.00 717.50 416.50 172.50 7.00 0.00 7.00 135.00 445.50 719.50 1101.00 5555.00
2007 1138.00 754.50 557.00 423.00 138.00 47.00 0.00 8.50 124.00 485.50 780.50 1040.00 5496.00
2008 1253.00 891.00 745.00 576.00 182.50 80.00 0.00 8.50 100.50 423.50 718.00 1124.50 6102.50
2009 1135.00 875.00 742.50 436.00 213.50 29.00 0.00 13.50 50.50 552.00 790.50 1214.50 6052.00
2010 988.00 771.00 660.50 511.00 345.00 73.00 3.00 35.00 99.50 337.00 839.50 1160.00 5822.50
2011 1224.50 891.00 728.00 582.00 327.50 110.50 1.00 0.00 21.00 g 427.50 829.29 b 1110.83 a 6232.12
2012 974.20 d 833.00 638.60 a 375.54 b 249.03 a 88.00 0.00 0.00 67.00 g 502.50 747.50 509.50 o 4408.37
2013 1564.98 a 852.92 b 730.10 b 21.00 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 3148.01
Period of Record Statistics
MEAN 1165.94 870.06 688.24 434.43 210.34 62.99 6.10 13.06 121.11 440.44 806.78 1095.66 5933.44
S.D. 186.10 138.18 81.44 80.32 63.53 34.47 9.60 16.15 61.81 74.77 90.05 138.52 453.51
SKEW 0.64 1.04 -0.08 -0.01 -0.05 0.30 2.21 1.35 0.55 -0.19 1.03 1.32 1.43
MAX 1705.50 1369.00 858.00 595.00 345.00 144.50 40.00 58.00 319.00 605.53 1145.50 1667.50 7793.50
MIN 775.50 653.00 488.50 272.50 70.00 0.50 0.00 0.00 3.50 216.00 666.00 879.50 5116.00
NO YRS 71 70 71 70 70 68 70 71 68 70 70 69 63