COTTAGE GROVE DAM, OREGON

Monthly Total Heating Degree Days

(351902)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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 0.50 y 45.00 55.50 301.50 536.00 792.00 1730.00
1944 758.00 668.00 635.00 493.00 326.00 180.50 48.00 61.00 111.50 239.50 653.00 842.50 5016.00
1945 727.50 626.50 712.50 542.00 277.50 175.50 34.00 31.50 178.00 381.50 620.00 745.50 5052.00
1946 813.00 685.00 655.50 465.00 276.00 172.50 63.50 52.50 134.00 541.00 660.00 768.00 5286.00
1947 882.00 583.00 531.50 374.50 208.00 166.03 a 29.00 50.50 127.00 326.50 572.00 776.50 4626.53
1948 844.50 768.00 678.00 573.00 327.00 87.50 66.13 a 61.00 180.00 a 349.78 a 740.50 922.50 5597.92
1949 1129.95 a 729.00 609.50 459.00 231.47 a 133.45 a 68.50 48.50 99.50 502.00 468.50 820.00 5299.37
1950 1035.00 713.50 716.50 539.00 371.00 183.00 55.00 24.59 b 79.66 a 355.00 520.00 562.50 5154.74
1951 785.50 652.50 697.00 339.00 287.00 99.00 32.50 58.00 99.50 455.00 610.00 824.00 4939.00
1952 860.50 676.00 696.00 442.00 305.00 222.50 48.00 51.00 101.50 261.50 769.00 727.00 5160.00
1953 586.00 611.00 659.00 480.50 421.50 299.50 63.00 65.50 111.50 347.50 449.50 682.50 4777.00
1954 734.00 563.50 677.50 452.50 307.00 254.50 114.00 134.00 198.50 415.50 478.50 760.50 5090.00
1955 810.00 714.50 736.00 621.00 393.50 169.00 134.50 82.50 196.00 363.50 623.50 693.50 5537.50
1956 739.00 798.00 651.50 466.50 281.50 215.00 62.00 62.50 108.50 424.18 a 642.00 749.50 5200.18
1957 987.00 626.50 572.00 426.50 261.00 129.50 78.50 75.00 94.00 401.50 681.50 692.50 5025.50
1958 706.00 487.00 672.50 485.00 172.00 131.00 6.50 2.50 148.50 311.50 553.50 580.50 4256.50
1959 678.00 667.00 607.00 425.50 389.00 142.00 55.50 41.50 190.50 340.50 605.00 756.00 4897.50
1960 819.50 673.00 552.50 461.00 385.00 125.00 42.50 97.00 151.00 372.50 624.00 782.50 5085.50
1961 689.00 544.50 630.00 477.00 334.50 113.00 49.50 13.50 219.00 428.50 699.50 752.00 4950.00
1962 882.50 652.50 673.50 394.50 423.50 168.50 93.50 63.50 103.50 390.00 537.00 734.50 5117.00
1963 979.50 461.00 640.00 576.00 340.50 214.00 132.50 54.50 65.50 339.50 565.50 747.50 5116.00
1964 760.00 719.50 695.00 560.50 438.00 208.50 90.00 91.00 202.00 337.00 687.00 752.50 5541.00
1965 762.50 612.00 616.50 450.50 421.50 220.00 59.00 45.50 212.00 308.50 537.00 824.50 5069.50
1966 796.00 688.00 638.50 426.00 343.00 179.00 78.50 60.00 115.00 401.00 589.00 688.00 5002.00
1967 715.50 627.50 663.50 612.50 339.50 122.00 19.00 8.50 58.50 378.50 567.50 796.50 4909.00
1968 770.50 525.00 555.00 534.00 353.00 173.50 49.50 77.50 155.50 411.50 569.00 790.50 4964.50
1969 892.00 742.50 621.00 501.00 241.00 116.50 76.00 86.00 146.50 454.50 613.00 706.00 5196.00
1970 712.50 571.50 611.00 606.00 351.00 143.50 46.50 46.00 238.50 433.00 591.00 803.00 5153.50
1971 812.00 658.00 734.50 540.00 336.50 233.00 86.50 20.00 212.50 510.00 656.50 828.00 5627.50
1972 833.50 626.00 535.50 578.50 313.00 155.50 30.00 43.50 229.50 434.50 585.00 928.50 5293.00
1973 826.00 586.00 680.00 482.50 275.00 170.50 70.00 104.50 129.00 405.50 662.50 660.50 5052.00
1974 899.00 703.00 636.02 a 514.50 391.50 160.50 82.00 48.50 60.50 386.00 590.00 725.00 5196.52
1975 718.00 675.00 709.50 634.50 365.50 204.00 54.00 103.00 106.50 400.00 684.00 714.00 5368.00
1976 763.00 693.50 704.00 564.50 336.00 262.50 59.50 78.50 103.00 343.50 531.50 838.00 5277.50
1977 815.00 556.00 683.50 442.00 424.00 109.00 78.50 23.00 175.50 340.50 595.50 664.50 4907.00
1978 685.00 547.50 480.00 494.50 399.50 117.50 68.50 71.00 182.50 299.00 728.50 873.00 4946.50
1979 1017.00 625.50 515.50 450.50 286.00 136.50 38.50 40.00 52.76 a 258.00 640.50 685.00 4745.76
1980 861.00 601.00 614.50 423.50 359.50 238.00 54.00 69.50 128.50 329.00 531.00 690.00 4899.50
1981 716.50 594.00 587.00 472.50 332.50 159.00 77.00 34.00 120.50 411.00 562.50 694.50 4761.00
1982 847.00 668.50 631.00 568.00 341.00 166.00 96.00 49.00 170.50 376.00 670.50 782.00 5365.50
1983 717.50 558.50 534.50 506.00 308.50 210.00 113.50 37.50 196.00 359.50 541.50 855.50 4938.50
1984 748.50 614.50 525.50 541.50 379.50 240.50 63.00 48.50 172.00 457.50 648.00 856.50 5295.50
1985 891.00 713.00 708.50 389.50 350.00 159.00 17.50 84.00 259.00 438.00 839.00 952.50 5801.00
1986 719.50 599.93 a 484.00 549.50 374.50 121.00 124.00 8.50 246.50 349.50 565.50 809.00 4951.43
1987 814.50 620.50 595.00 392.00 290.00 141.00 120.50 71.00 153.50 296.50 576.50 834.00 4905.00
1988 832.50 655.50 638.00 455.00 414.50 234.00 83.50 103.50 219.50 323.00 670.00 872.50 5501.50
1989 844.50 934.50 727.00 425.00 437.00 228.00 177.50 178.50 187.50 481.50 688.00 891.00 6200.00
1990 788.00 711.50 539.00 375.00 360.50 180.00 32.00 43.50 63.00 427.50 613.00 1012.50 5145.50
1991 844.00 474.50 683.00 542.50 424.50 256.00 38.50 48.00 100.00 342.00 555.50 776.50 5085.00
1992 689.00 512.50 474.00 358.50 204.00 111.50 47.00 36.00 138.50 335.50 595.00 836.00 4337.50
1993 917.00 734.50 511.50 487.00 248.00 206.00 149.00 87.00 123.00 287.00 791.50 788.50 5330.00
1994 722.00 698.50 542.00 433.50 278.50 220.00 34.50 26.50 73.50 417.00 743.00 711.00 4900.00
1995 712.50 511.00 598.00 508.00 295.00 199.00 46.50 84.50 69.50 384.00 463.00 711.50 4582.50
1996 468.00 k 657.50 583.00 429.50 390.00 185.00 44.00 44.00 180.00 400.00 561.50 731.60 a 4206.10
1997 771.00 639.00 593.00 490.50 207.00 192.00 51.50 16.50 99.00 419.00 558.50 837.50 4874.50
1998 652.00 584.50 596.50 486.00 408.50 170.50 32.00 35.00 95.00 401.00 576.00 831.00 4868.00
1999 730.16 c 657.00 701.38 c 532.76 a 439.00 221.38 a 79.50 43.18 c 145.86 a 383.88 a 519.31 a 773.45 a 5226.86
2000 810.65 a 627.50 683.03 a 430.00 318.50 142.50 73.00 70.02 b 124.44 c 366.66 b 731.25 b 793.17 b 5170.72
2001 779.50 690.08 d 596.75 c 549.23 d 276.23 c 226.50 64.00 32.00 111.92 d 402.45 c 571.15 d 544.50 i 4299.82
2002 776.50 611.50 697.50 476.50 394.00 162.12 d 37.50 55.00 119.00 439.00 600.00 705.50 5074.12
2003 643.50 654.00 535.00 530.50 243.00 g 143.50 23.50 13.00 69.50 g 258.52 c 672.00 e 536.00 h 3473.52
2004 575.00 f 626.50 497.72 d 428.08 d 284.50 150.00 32.50 23.00 187.50 275.50 g 515.50 f 544.50 g 2229.80
2005 587.50 f 644.58 d 426.00 f 363.50 g 209.50 f 238.50 24.50 18.50 h 112.50 h 264.00 g 475.00 h 456.00 m 907.58
2006 553.50 f 447.50 i 280.00 q 242.00 n 199.00 h 95.50 k 16.50 h 56.50 k 49.50 q 437.32 c 93.50 w 0.00 z 437.32
2007 432.00 n 633.50 507.00 480.50 345.77 e 177.93 a 13.50 56.50 185.89 b 449.00 664.50 771.79 b 4285.89
2008 524.00 m 476.00 h 0.00 z 0.00 z 327.22 d 251.00 0.00 z 53.00 110.40 e 426.25 c 552.00 844.48 b 2564.35
2009 817.50 624.00 706.50 348.00 i 297.00 119.00 27.00 47.50 92.07 a 431.93 a 635.00 940.00 4737.50
2010 634.50 555.00 602.00 523.97 a 408.00 223.00 68.50 54.00 113.50 370.00 600.50 449.50 k 4152.97
2011 669.48 e 698.96 a 601.00 547.24 a 460.50 217.00 103.50 36.00 74.50 365.50 618.50 862.00 5254.19
2012 754.00 673.00 699.50 445.86 a 368.50 231.43 b 67.50 30.00 111.00 339.93 b 506.00 755.50 4982.22
2013 858.50 641.50 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 1500.00
Period of Record Statistics
MEAN 793.53 639.37 622.34 487.11 337.18 179.61 63.86 55.00 138.86 380.20 609.79 779.83 5099.72
S.D. 100.69 78.23 71.89 66.48 65.56 46.92 34.00 30.18 52.55 61.68 78.78 84.22 318.55
SKEW 0.83 0.43 -0.35 0.07 -0.32 0.16 0.99 1.22 0.34 0.01 0.47 0.14 0.42
MAX 1129.95 934.50 736.00 634.50 460.50 299.50 177.50 178.50 259.00 541.00 839.00 1012.50 6200.00
MIN 586.00 461.00 474.00 339.00 172.00 87.50 6.50 2.50 52.76 239.50 449.50 562.50 4256.50
NO YRS 64 68 66 65 66 68 67 68 67 68 67 64 59