FERN RIDGE DAM, OREGON

Monthly Total Heating Degree Days

(352867)

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
1943 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5.00 o 35.50 60.50 326.00 600.00 850.00 1872.00
1944 850.00 688.50 643.50 475.00 321.50 159.50 39.50 48.50 83.50 239.00 654.00 867.50 5070.00
1945 768.00 607.50 665.00 495.00 241.00 164.00 31.50 17.00 147.50 366.50 580.50 738.83 a 4822.33
1946 769.50 639.00 616.50 436.00 220.00 171.50 48.00 30.00 152.50 503.50 655.00 751.50 4993.00
1947 889.00 585.00 518.50 363.62 a 186.50 160.50 39.50 59.50 112.50 311.50 556.50 729.00 4511.62
1948 829.00 743.50 662.50 548.50 344.00 91.07 b 68.20 a 44.00 164.00 399.00 662.50 905.50 5461.77
1949 1173.00 693.00 592.00 372.00 236.00 144.50 62.50 45.00 114.00 514.50 484.00 782.50 5213.00
1950 1049.00 737.00 676.83 a 508.50 333.00 154.00 22.50 22.00 110.00 360.50 536.00 567.50 5076.83
1951 769.00 610.00 723.50 343.97 a 298.50 86.50 28.00 49.00 84.00 381.00 582.00 810.50 4765.97
1952 831.00 654.57 a 678.38 a 413.50 298.12 a 218.00 31.00 45.50 78.00 234.00 769.50 746.50 4998.07
1953 586.42 a 619.00 637.00 488.50 390.50 243.10 a 36.50 51.00 83.00 339.50 484.00 664.00 4622.52
1954 767.00 617.00 681.00 447.50 293.98 a 250.50 76.50 84.00 159.00 420.00 471.50 768.50 5036.48
1955 810.50 705.00 734.50 607.00 368.50 169.50 133.82 a 51.50 156.00 361.50 657.50 724.50 5479.82
1956 730.50 830.64 a 644.00 437.00 253.50 206.38 a 55.59 b 47.50 93.00 415.00 676.00 764.00 5153.11
1957 1027.00 646.50 583.00 404.00 231.47 a 111.00 55.00 60.00 48.50 367.00 658.00 683.00 4874.47
1958 706.00 475.50 636.00 464.00 169.50 102.50 2.00 2.50 115.50 305.00 545.00 580.50 4104.00
1959 683.00 655.50 583.50 401.50 361.50 135.50 36.00 35.00 176.00 297.50 605.00 751.00 4721.00
1960 854.50 657.00 588.50 452.50 365.50 99.00 26.00 74.00 114.00 326.00 582.00 795.50 4934.50
1961 683.50 532.50 598.50 461.00 340.00 107.00 38.00 15.00 176.50 370.00 686.50 717.50 4726.00
1962 880.50 654.00 664.50 392.00 429.50 163.50 74.50 59.50 80.50 363.50 530.50 707.00 4999.50
1963 941.00 474.00 617.00 560.00 317.50 180.50 99.00 49.50 80.50 319.50 566.00 764.00 4968.50
1964 741.50 699.50 676.00 531.50 405.50 199.00 72.00 79.50 161.00 330.50 678.50 747.00 5321.50
1965 771.00 612.50 560.50 429.00 370.50 178.00 51.50 31.00 139.50 294.50 486.50 811.00 4735.50
1966 765.50 666.50 625.00 392.50 307.50 169.50 68.50 51.50 85.50 367.00 555.00 652.50 4706.50
1967 689.50 603.00 665.50 596.50 316.50 101.00 14.00 2.50 32.50 361.00 543.50 744.50 4670.00
1968 752.50 512.50 541.00 518.00 357.50 162.00 45.50 84.50 136.50 405.50 544.00 813.00 4872.50
1969 937.50 746.50 603.00 507.50 243.50 102.50 56.50 73.50 132.50 444.50 589.00 711.50 5148.00
1970 743.00 574.50 578.50 569.00 318.50 121.00 39.00 41.00 192.00 407.00 587.50 788.00 4959.00
1971 797.50 670.50 711.00 531.00 320.50 235.50 69.00 15.00 171.50 461.50 628.00 808.00 5419.00
1972 807.50 638.00 533.50 570.50 279.00 140.50 29.00 38.00 209.00 400.50 559.50 931.00 5136.00
1973 851.50 590.00 658.00 448.50 287.00 150.50 61.00 88.50 119.00 372.00 649.00 665.00 4940.00
1974 894.50 687.00 611.00 500.00 362.50 145.00 88.00 43.00 35.50 336.50 564.50 667.00 4934.50
1975 674.00 673.00 658.50 602.50 344.50 178.50 45.00 92.00 73.00 383.00 646.00 721.00 5091.00
1976 751.50 700.00 687.50 547.50 332.50 236.50 63.00 72.50 81.00 332.50 537.50 856.00 5198.00
1977 833.00 581.00 661.50 453.10 a 427.50 117.50 68.00 26.00 176.50 342.50 640.50 681.00 5008.10
1978 676.00 562.50 497.00 489.50 375.50 106.50 56.50 52.50 168.00 315.50 734.50 890.00 4924.00
1979 1035.50 665.50 537.00 473.00 274.50 151.50 44.00 40.00 64.50 243.50 647.50 678.50 4855.00
1980 879.00 636.00 622.00 435.00 360.50 229.00 45.50 58.50 106.50 320.00 528.50 688.00 4908.50
1981 734.50 618.00 568.50 457.50 336.50 158.00 61.00 25.00 107.50 406.00 554.50 684.00 4711.00
1982 865.50 644.50 633.50 554.00 303.00 139.50 70.00 18.50 103.00 330.50 661.00 733.00 5056.00
1983 698.00 543.50 475.50 412.50 237.00 149.00 67.50 9.50 101.00 315.50 499.50 831.00 4339.50
1984 681.50 566.50 464.50 480.00 324.50 184.50 17.00 13.00 95.50 395.00 592.00 810.50 4624.50
1985 897.00 651.50 619.50 354.50 282.50 110.50 8.50 41.50 153.50 357.50 798.00 982.00 5256.50
1986 686.50 584.50 429.00 457.00 323.50 88.00 56.50 6.50 186.00 287.00 548.50 785.00 4438.00
1987 810.00 592.00 544.50 348.50 242.00 107.00 73.50 15.00 95.50 199.50 536.00 812.00 4375.50
1988 821.50 628.00 556.50 404.00 341.50 160.50 38.00 22.00 95.50 122.00 p 530.50 739.50 4337.50
1989 716.00 561.50 i 584.00 174.00 j 205.50 i 101.00 15.00 l 37.50 31.50 k 220.50 i 379.50 j 501.50 k 1438.50
1990 447.00 k 466.50 j 354.50 i 226.00 i 231.50 i 87.50 i 10.50 j 17.50 14.50 l 232.00 j 383.50 k 474.50 m 17.50
1991 479.00 k 283.50 j 441.00 j 321.50 i 246.50 i 144.50 j 11.50 i 10.50 i 1.50 j 215.00 i 311.00 l 447.00 k 0.00
1992 390.50 j 312.50 j 268.00 i 304.00 103.00 k 50.50 11.00 0.50 j 48.00 i 206.50 j 370.50 k 539.00 j 365.50
1993 490.00 n 480.50 i 453.00 404.00 118.50 l 135.50 51.50 j 27.00 i 48.50 i 146.50 k 373.50 m 430.50 m 992.50
1994 410.50 l 391.50 k 480.50 a 240.00 j 122.50 j 153.62 a 5.50 l 1.00 32.50 i 214.50 k 425.50 k 451.50 j 635.12
1995 410.50 l 194.50 n 376.50 i 283.50 j 176.00 i 126.00 10.00 k 25.12 b 26.50 j 219.50 j 256.50 k 446.00 k 151.12
1996 416.50 m 421.50 j 351.50 j 249.00 k 233.50 j 116.50 k 36.50 i 32.00 i 131.50 l 269.50 j 337.50 l 427.00 m 0.00
1997 472.00 k 391.00 i 396.00 j 451.50 88.00 n 72.50 j 15.00 i 3.00 j 34.00 i 238.50 j 258.50 l 454.50 l 451.50
1998 345.50 n 345.00 j 316.00 l 414.50 179.00 k 76.50 12.50 i 12.00 l 87.50 i 262.50 k 269.00 n 380.00 n 491.00
1999 380.50 m 324.00 l 428.00 i 285.00 k 200.00 l 87.50 h 6.50 k 13.00 i 33.50 i 168.50 k 263.00 l 457.00 j 0.00
2000 476.00 k 356.00 i 384.50 i 195.00 j 171.00 i 59.50 h 12.00 l 0.00 i 27.50 k 178.50 l 344.50 m 473.00 k 0.00
2001 471.00 j 394.50 j 296.50 l 249.50 l 166.00 i 108.00 i 14.00 n 12.00 h 42.00 l 207.00 m 348.00 j 464.50 k 0.00
2002 519.00 i 371.00 j 438.50 j 375.50 236.50 h 50.50 j 3.00 j 16.00 i 28.00 k 212.50 i 294.00 m 452.50 j 375.50
2003 411.00 j 420.00 i 354.00 j 339.50 j 56.00 s 51.00 j 6.50 h 1.00 k 42.00 l 145.00 i 307.00 p 433.50 l 0.00
2004 489.50 k 377.50 k 289.00 j 292.50 h 144.00 k 71.00 n 8.00 n 9.00 j 38.50 o 142.50 p 315.00 n 316.50 q 0.00
2005 343.50 q 358.50 m 300.50 l 255.50 m 156.50 n 81.50 o 2.50 q 1.00 n 53.00 p 128.50 t 388.00 l 460.50 o 0.00
2006 530.00 i 485.00 h 508.00 i 314.50 j 188.50 k 108.00 i 28.50 n 50.50 k 56.50 o 191.50 p 0.00 z 0.00 z 0.00
2007 333.00 s 367.50 m 186.50 v 287.50 n 177.00 p 108.50 n 0.00 z 16.00 u 75.00 p 158.50 t 0.00 z 0.00 z 0.00
2008 0.00 z 327.00 n 307.50 p 274.00 n 120.00 s 0.00 z 24.50 t 15.50 s 0.00 z 182.50 p 0.00 z 0.00 z 0.00
2009 0.00 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 0.00 z 646.50 979.50 1626.00
2010 666.50 586.00 617.50 527.50 414.00 228.50 33.00 n 68.72 a 140.50 405.50 651.50 729.00 5035.22
2011 786.50 739.00 622.50 591.00 420.00 192.50 77.00 32.00 86.50 377.50 642.00 844.50 5411.00
2012 790.50 722.00 707.50 444.50 360.00 246.00 52.00 38.50 128.50 376.00 584.50 739.50 5189.50
2013 923.00 658.00 23.50 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 0.00 z 1581.00
Period of Record Statistics
MEAN 805.50 636.26 606.42 465.02 318.08 152.76 51.08 41.25 117.67 355.99 598.12 763.83 4929.59
S.D. 113.36 70.36 72.39 73.41 61.64 48.18 24.72 23.66 42.71 62.67 72.60 87.58 300.87
SKEW 0.93 0.00 -0.56 0.11 -0.31 0.28 0.55 0.29 0.12 0.03 0.51 0.39 -0.42
MAX 1173.00 830.64 734.50 607.00 429.50 250.50 133.82 92.00 209.00 514.50 798.00 982.00 5479.82
MIN 586.42 474.00 429.00 304.00 169.50 50.50 2.00 1.00 32.50 199.50 471.50 567.50 4104.00
NO YRS 50 49 51 53 48 54 48 53 49 48 50 50 46