PELTON DAM, OREGON

Monthly Total Heating Degree Days

(356532)

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 0.00 g 66.50 o 292.71 e 696.00 e 748.00 1736.71
1959 826.50 705.00 616.50 368.00 341.00 66.50 17.00 9.50 147.00 359.50 724.50 926.00 5107.00
1960 1140.00 753.50 608.00 396.50 322.00 40.50 3.00 54.00 91.00 367.00 691.15 d 949.50 5416.15
1961 767.00 558.50 585.00 429.00 260.50 41.50 3.00 1.00 161.50 428.00 797.00 864.50 4896.50
1962 997.00 729.50 675.50 331.50 341.50 99.50 31.50 30.50 52.00 433.50 598.50 841.50 5162.00
1963 1076.00 563.50 635.00 529.00 246.50 133.50 11.50 25.50 44.50 348.50 627.00 960.50 5201.00
1964 817.50 754.50 713.00 500.00 295.00 83.50 6.00 38.50 121.50 382.00 759.00 954.28 a 5424.78
1965 835.50 617.00 652.50 363.50 280.50 68.50 17.00 26.00 6.00 z 228.50 k 602.50 415.00 o 3463.00
1966 311.00 t 706.22 a 608.50 394.50 187.00 112.50 6.00 9.50 56.50 346.50 613.50 798.00 3838.72
1967 728.50 600.50 666.50 586.00 230.00 74.00 0.00 2.50 32.00 329.00 626.50 903.00 4778.50
1968 860.50 628.00 526.50 467.50 237.50 80.50 0.50 32.50 87.00 421.50 668.00 936.50 4946.50
1969 1202.50 819.50 644.50 460.00 153.50 48.00 14.50 19.50 88.00 489.00 642.00 899.50 5480.50
1970 909.00 660.50 624.50 575.00 217.00 85.00 4.00 0.00 191.50 456.00 692.50 865.50 5280.50
1971 807.50 716.00 739.00 484.00 203.50 115.50 28.50 6.50 164.00 466.50 679.00 853.50 5263.50
1972 922.50 725.50 532.00 528.00 180.50 40.00 7.00 9.50 189.50 437.00 630.00 1104.50 5306.00
1973 980.50 684.50 654.50 412.00 185.50 91.50 4.50 25.83 a 101.50 374.50 702.50 726.50 4943.83
1974 1047.50 640.50 608.50 434.00 296.50 35.00 24.59 b 17.00 44.50 376.50 614.50 806.50 4945.59
1975 793.50 792.00 724.50 595.00 262.50 96.50 6.50 28.50 66.50 371.00 678.50 775.50 5190.50
1976 807.00 745.00 701.00 491.50 203.00 136.50 6.50 24.50 27.50 360.00 598.97 a 939.50 5040.97
1977 1052.50 640.50 661.50 316.50 347.50 18.00 30.00 35.00 157.50 374.00 756.00 814.50 5203.50
1978 895.00 627.50 519.50 449.00 321.50 57.50 11.50 40.50 156.50 337.00 892.00 1006.00 5313.50
1979 1436.50 733.00 549.50 439.00 189.50 64.00 9.50 1.50 35.00 73.00 o 617.00 g 744.00 4201.50
1980 1005.90 b 736.50 0.00 z 379.00 237.50 132.50 7.00 0.00 z 83.00 385.00 617.00 368.50 m 3583.40
1981 820.00 675.00 577.50 428.00 245.00 86.00 26.00 1.50 101.00 i 400.42 a 627.00 836.00 4722.42
1982 942.00 728.50 636.00 519.00 260.00 67.00 22.50 9.00 156.50 425.00 781.00 910.00 5456.50
1983 773.00 612.50 537.00 464.00 247.00 104.00 50.00 1.50 84.00 n 346.00 591.00 1163.00 4889.00
1984 921.00 663.50 537.50 502.50 268.00 132.00 0.50 0.00 154.50 488.00 706.50 986.00 5360.00
1985 1021.00 748.50 667.00 339.50 208.50 42.50 0.00 8.50 205.00 402.00 1004.50 1259.50 5906.50
1986 857.67 a 675.11 a 459.50 491.00 270.22 a 35.50 26.00 1.50 229.00 348.00 631.50 911.50 4936.49
1987 948.50 652.08 b 557.50 267.00 152.00 34.66 a 21.18 a 5.50 55.50 288.50 653.00 895.38 a 4530.80
1988 969.02 b 657.16 a 604.00 321.50 225.00 102.93 a 11.50 1.00 108.00 145.50 627.50 888.00 4661.11
1989 759.50 969.50 624.00 295.50 238.00 33.50 9.00 19.50 63.00 360.00 583.50 903.50 4858.50
1990 735.00 696.00 532.00 234.50 236.00 63.00 2.00 4.50 2.50 350.50 571.00 1103.50 4530.50
1991 920.00 497.50 606.50 422.00 256.00 98.00 0.00 0.00 28.50 334.50 599.00 809.50 4571.50
1992 732.00 551.00 462.00 313.50 76.50 0.00 z 4.00 10.00 59.50 295.50 655.00 990.50 4149.50
1993 1150.50 919.00 610.50 433.00 110.00 80.50 32.50 28.50 90.00 277.00 910.00 855.00 5496.50
1994 754.00 744.50 533.50 302.50 144.00 60.50 7.00 1.00 20.00 355.50 711.50 830.00 4464.00
1995 865.50 546.00 606.50 439.50 192.00 88.00 3.00 16.50 61.50 393.50 527.00 866.50 4605.50
1996 845.50 794.00 576.50 360.00 281.50 49.00 17.50 4.50 136.50 381.50 692.00 871.62 a 5010.12
1997 949.50 722.00 539.00 431.00 135.50 118.50 20.00 0.00 60.50 379.50 603.00 908.50 4867.00
1998 817.50 595.50 542.00 403.50 251.00 23.50 0.00 0.00 0.00 z 363.50 562.50 827.00 4386.00
1999 752.00 621.50 625.00 444.50 290.00 102.00 7.50 7.50 68.00 314.50 511.50 780.00 4524.00
2000 620.50 j 676.00 607.50 277.50 182.50 32.00 15.00 1.00 79.00 324.50 801.50 906.00 3902.50
2001 884.00 714.00 537.00 465.00 a 125.00 81.00 8.50 4.50 31.50 332.00 597.93 a 863.00 4643.43
2002 810.50 625.50 675.50 383.50 269.50 86.00 6.50 23.00 88.50 487.00 713.50 824.00 4993.00
2003 714.50 726.50 530.50 497.50 231.00 42.50 0.00 0.00 50.00 248.00 765.00 861.00 4666.50
2004 1085.50 720.50 487.50 368.50 232.50 76.00 0.50 16.50 98.50 339.00 676.50 804.00 4905.50
2005 912.50 748.00 529.50 432.00 192.50 159.00 3.00 11.50 126.50 380.00 766.50 1164.00 5425.00
2006 777.50 827.00 729.50 449.00 254.00 65.00 5.50 17.00 126.00 444.00 678.00 942.50 5315.00
2007 1028.50 744.50 544.00 496.00 210.50 95.50 0.00 15.50 127.00 463.45 a 748.93 b 861.00 5334.88
2008 0.00 z 538.00 f 722.00 601.00 276.50 133.97 a 3.00 25.50 94.00 0.00 z 604.50 1065.50 3525.97
2009 931.50 791.00 744.00 496.50 254.00 47.50 6.00 19.00 67.00 509.50 680.50 1085.50 5632.00
2010 790.50 689.00 630.00 524.00 347.00 148.00 31.00 31.00 94.50 375.50 709.50 921.22 a 5291.22
2011 860.50 776.74 a 659.50 574.50 374.00 135.52 a 31.00 5.50 53.00 374.50 699.50 967.00 5511.26
2012 843.50 783.50 681.00 424.50 267.50 142.50 6.50 13.00 43.50 384.00 624.50 877.00 5091.00
2013 1051.50 737.00 618.50 19.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 42.00 z 2407.00
Period of Record Statistics
MEAN 906.39 699.36 606.95 432.04 237.82 80.87 11.60 13.99 93.51 373.94 676.31 908.57 5079.29
S.D. 141.75 88.33 71.41 87.10 63.11 36.53 11.33 13.00 53.34 65.55 92.50 111.31 345.19
SKEW 1.23 0.35 0.03 -0.13 -0.19 0.27 1.18 0.86 0.60 -0.49 1.20 1.06 -0.02
MAX 1436.50 969.50 744.00 601.00 374.00 159.00 50.00 54.00 229.00 509.50 1004.50 1259.50 5906.50
MIN 714.50 497.50 459.50 234.50 76.50 18.00 0.00 0.00 2.50 145.50 511.50 726.50 4464.00
NO YRS 52 54 54 54 54 53 54 53 50 52 54 53 44