SISTERS, OREGON

Monthly Total Heating Degree Days

(357857)

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
1958 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 22.50 u 323.50 534.50 784.00 838.50 2480.50
1959 971.00 900.67 a 817.50 639.00 595.72 a 255.50 113.00 190.13 a 359.48 a 544.00 799.00 1042.12 a 7227.12
1960 1209.00 977.94 b 814.00 650.50 561.00 231.00 60.45 a 209.50 275.00 544.00 888.00 1050.50 7470.89
1961 946.00 718.15 a 668.00 f 640.86 a 522.50 162.50 86.50 41.69 b 433.33 c 600.88 a 923.00 1038.50 c 6113.92
1962 1126.50 886.00 880.00 560.50 584.50 303.50 173.50 180.00 243.50 588.00 748.50 921.00 7195.50
1963 1169.00 661.00 876.55 b 743.00 460.00 324.00 216.50 147.50 146.50 537.50 781.03 a 1013.00 7075.59
1964 985.00 661.50 f 875.50 736.50 565.50 318.00 143.93 c 204.08 a 406.50 572.00 931.61 b 1088.00 6826.62
1965 996.00 767.00 885.57 a 643.00 588.00 299.00 111.00 142.00 440.00 453.00 762.00 1078.00 7164.57
1966 979.50 874.50 812.50 637.00 436.50 322.50 157.00 141.00 240.56 c 528.50 771.00 959.00 6859.56
1967 893.50 760.00 886.00 816.00 477.00 233.00 72.00 40.50 151.50 513.50 792.00 1087.50 6722.50
1968 1043.50 784.00 734.00 716.00 496.00 222.50 85.50 180.00 285.00 611.00 849.50 730.00 i 6007.00
1969 1229.00 994.50 839.00 666.50 339.50 173.50 142.00 187.00 0.00 z 687.50 807.00 1020.50 7086.00
1970 1021.50 802.00 828.00 766.00 461.00 197.00 64.50 91.00 402.50 651.00 835.00 1073.50 7193.00
1971 945.00 852.92 b 946.50 695.00 432.50 336.50 126.50 57.00 404.50 653.00 810.00 1069.00 7328.42
1972 1078.00 843.00 699.50 748.50 398.50 205.50 75.00 124.50 0.00 z 643.50 805.00 1273.50 6894.50
1973 1169.50 855.50 828.50 632.00 397.00 249.00 85.00 164.00 290.50 575.00 883.00 888.00 7017.00
1974 1231.50 848.00 832.00 667.50 548.00 140.50 147.00 135.50 242.00 600.50 738.00 995.00 7125.50
1975 989.00 931.78 a 938.50 788.50 413.00 g 335.00 92.00 214.50 302.50 581.00 908.00 937.00 7017.78
1976 980.50 909.00 847.50 697.50 438.00 367.50 90.00 184.50 272.50 578.50 760.50 1064.00 7190.00
1977 1182.50 736.75 d 833.00 555.00 588.50 129.50 132.00 54.50 382.50 599.69 b 859.50 972.50 7025.94
1978 1004.92 a 829.00 718.00 787.00 555.50 202.00 96.50 172.50 348.00 539.29 b 1152.60 e 807.00 i 6405.31
1979 0.00 z 683.50 f 806.00 695.00 0.00 z 235.38 d 111.00 154.48 a 209.46 b 273.50 i 771.00 f 913.39 c 3124.73
1980 874.50 i 0.00 z 0.00 z 0.00 z 0.00 z 207.50 k 111.08 a 190.81 b 198.00 g 360.00 k 408.50 n 505.50 n 301.89
1981 585.00 m 506.50 l 455.50 m 353.50 l 489.44 e 211.50 f 161.50 g 74.50 f 248.50 k 443.00 j 491.00 l 674.50 j 489.44
1982 737.50 l 643.50 j 866.00 784.00 345.50 l 247.50 168.50 123.00 366.50 647.50 969.00 1106.50 5278.50
1983 927.00 767.00 723.00 721.07 b 260.00 m 372.50 214.50 66.50 397.50 530.50 811.50 568.00 q 5531.07
1984 783.50 k 698.00 i 871.00 825.50 592.00 483.10 a 77.50 72.00 i 376.00 682.50 887.00 1150.50 5945.10
1985 1172.00 608.50 j 846.50 568.50 493.50 216.00 31.00 178.50 462.00 638.17 b 1154.00 1388.00 7148.17
1986 1006.47 a 826.50 683.50 698.79 a 482.00 161.00 197.50 31.00 435.00 560.00 775.86 a 798.00 i 5857.62
1987 713.00 k 577.50 j 534.00 i 277.00 j 0.00 z 198.00 e 178.00 145.00 237.00 333.50 j 444.50 n 704.00 k 758.00
1988 1149.14 b 849.37 c 813.00 564.00 308.00 l 199.50 i 69.50 k 90.00 h 215.00 i 252.00 k 820.00 1056.00 5251.50
1989 1027.00 1192.50 814.00 525.50 484.50 222.00 145.50 178.50 303.00 595.50 787.00 1032.00 7307.00
1990 953.50 941.00 787.50 489.50 511.50 244.00 75.50 128.00 188.00 592.50 785.00 1312.00 7008.00
1991 1105.50 716.50 879.00 675.00 551.00 334.50 68.00 55.50 218.00 557.50 787.00 1009.57 a 6957.07
1992 950.00 769.00 709.50 534.00 310.00 0.00 z 137.00 113.00 273.00 519.50 870.50 1202.00 6387.50
1993 1398.50 1150.00 804.50 662.00 332.00 311.50 262.50 189.00 270.00 520.50 1078.00 1038.00 8016.50
1994 923.00 915.50 749.00 551.50 388.50 276.00 49.50 115.00 208.50 641.00 1023.50 1047.50 6888.50
1995 1033.50 764.00 862.00 695.00 458.00 306.00 125.50 205.00 199.50 611.50 697.50 1076.98 b 7034.48
1996 1006.00 944.50 801.00 590.50 536.00 274.00 81.50 101.00 343.00 589.00 802.00 1029.72 a 7098.22
1997 1065.50 890.00 775.50 694.00 342.00 275.00 91.50 64.00 245.50 591.50 795.00 1075.00 6904.50
1998 988.00 814.00 753.50 670.00 500.00 237.00 17.50 73.50 186.50 628.00 797.00 1067.00 6732.00
1999 929.50 859.00 867.50 723.00 526.50 287.07 a 125.00 68.00 328.50 534.00 691.50 959.00 6898.57
2000 1102.00 907.00 902.00 585.50 604.50 302.07 a 142.50 113.50 300.50 635.50 1081.50 1168.50 7845.07
2001 1173.50 1033.00 732.50 717.41 a 333.77 a 351.96 b 124.52 a 69.00 212.88 d 591.00 787.76 a 1006.50 7133.80
2002 556.00 p 846.00 877.00 630.50 516.00 193.50 54.00 156.50 288.50 717.50 561.00 j 945.50 5225.00
2003 856.00 895.00 741.00 699.00 471.31 d 178.00 36.00 58.00 196.00 444.50 960.54 b 697.00 j 5535.35
2004 1115.47 b 914.66 d 515.50 g 567.50 253.00 n 200.00 45.50 78.50 323.79 a 571.00 840.00 944.00 5600.42
2005 1035.00 888.50 734.50 657.00 408.50 326.00 43.50 85.00 372.50 603.00 933.50 1213.00 7300.00
2006 939.00 441.00 l 916.57 a 624.50 407.00 203.50 64.00 129.00 263.00 639.50 786.00 1094.50 6066.57
2007 1147.00 826.50 682.00 685.00 376.00 237.50 25.00 112.50 338.50 648.00 848.50 1060.50 6987.00
2008 1173.50 857.50 889.50 786.50 409.00 326.50 59.00 88.00 283.50 561.50 727.76 a 1212.00 7374.26
2009 1030.50 912.00 950.00 675.00 427.80 a 195.50 50.50 100.50 227.50 709.00 831.50 1234.00 7343.80
2010 914.50 857.04 e 827.00 711.60 e 536.50 316.50 54.50 m 139.50 283.00 582.50 870.00 1039.50 7077.64
2011 951.04 c 977.00 832.00 784.29 b 592.00 302.00 144.00 50.50 170.00 564.00 876.00 1087.50 7330.32
2012 956.50 894.50 870.00 587.50 457.00 239.50 j 73.76 b 78.50 258.75 b 601.00 776.25 b 1047.00 6600.76
2013 1137.50 870.15 b 803.86 b 34.50 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 48.00 z 2811.52
Period of Record Statistics
MEAN 1048.26 869.77 821.24 669.88 477.86 261.65 105.89 123.53 294.31 588.86 848.78 1062.23 7158.49
S.D. 111.47 101.16 69.00 80.93 81.73 70.52 53.53 53.04 81.44 57.39 105.44 109.01 282.78
SKEW 0.73 0.87 -0.28 -0.14 -0.27 0.45 0.68 0.01 0.21 -0.06 1.31 0.76 1.17
MAX 1398.50 1192.50 950.00 825.50 604.50 483.10 262.50 214.50 462.00 717.50 1154.00 1388.00 8016.50
MIN 856.00 661.00 682.00 489.50 310.00 129.50 17.50 31.00 146.50 444.50 691.50 838.50 6722.50
NO YRS 48 46 50 51 46 49 51 51 50 50 50 47 30