HEADWORKS PTLD WTR BUR, OREGON

Monthly Total Growing Degree Days

(353770)

Base Temperature = 40 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
1899 0.00 z 0.00 z 0.00 z 170.77 d 258.00 471.50 765.00 574.50 596.00 242.00 241.00 39.50 3358.27
1900 61.00 42.50 231.50 274.50 435.50 651.50 746.00 587.00 485.00 273.00 141.00 62.52 a 3991.02
1901 2.50 66.89 a 58.00 g 160.00 410.23 a 473.50 643.00 747.50 0.00 z 438.00 157.50 56.50 3155.62
1902 42.50 55.50 111.71 b 0.00 z 0.00 z 582.50 709.50 714.50 491.00 387.50 84.50 21.70 a 3200.91
1903 59.00 12.50 0.00 z 0.00 z 0.00 z 619.50 674.00 700.50 447.00 0.00 z 0.00 z 17.50 2530.00
1904 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 0.00 z 46.50 46.50
1905 0.00 z 0.00 z 0.00 z 321.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 321.50
1906 0.00 z 0.00 z 0.00 z 0.00 z 428.50 537.00 953.50 824.50 615.00 388.00 170.50 74.50 3991.50
1907 1.00 71.50 g 81.00 267.00 526.00 589.50 783.00 662.00 592.00 466.50 185.00 76.00 4229.00
1908 35.00 35.50 110.50 304.50 296.50 532.50 854.50 738.00 531.00 300.00 193.50 15.00 3946.50
1909 8.50 23.00 126.50 205.50 352.50 575.50 625.50 657.00 592.00 361.50 128.50 1.00 3657.00
1910 9.00 9.50 279.50 321.50 521.50 536.38 a 785.50 800.00 591.50 453.00 135.00 66.00 4508.38
1911 20.50 37.00 220.00 324.00 416.50 483.50 860.50 694.00 273.00 253.00 70.00 14.00 3666.00
1912 9.00 56.00 44.50 120.50 430.50 644.00 729.00 558.50 601.00 339.85 d 160.50 33.50 3726.85
1913 3.50 18.50 84.50 260.36 b 0.00 z 616.00 740.50 731.50 558.00 326.50 138.00 17.50 3494.86
1914 40.00 60.50 246.00 304.00 470.50 465.50 744.50 798.00 479.50 471.50 157.00 5.00 4242.00
1915 11.00 68.50 288.00 355.34 a 422.00 559.82 b 732.00 840.00 589.00 386.00 92.00 39.00 4382.67
1916 2.00 68.50 102.50 277.50 289.00 546.72 a 645.50 752.78 a 564.50 308.00 54.50 9.50 3621.01
1917 6.64 c 33.50 23.50 143.00 324.50 548.00 812.00 0.00 z 599.00 427.50 229.50 151.00 3298.14
1918 103.00 31.00 134.50 279.50 379.00 730.00 747.00 722.00 692.50 421.50 140.00 54.00 4434.00
1919 60.50 17.00 155.00 283.00 451.00 539.50 818.50 810.50 585.50 251.50 107.50 4.50 4084.00
1920 69.00 69.00 141.00 167.50 390.00 585.50 786.00 818.50 527.00 0.00 z 118.50 71.00 3743.00
1921 24.00 79.00 191.00 313.50 473.00 861.50 695.00 768.50 545.00 449.50 250.00 61.48 a 4711.48
1922 0.00 6.50 42.00 170.50 461.50 672.00 846.50 766.00 637.00 396.00 60.00 4.00 4062.00
1923 42.50 38.00 122.50 359.00 430.50 593.00 792.50 848.50 671.50 437.50 257.50 40.50 4633.50
1924 37.00 159.50 136.00 310.00 581.50 645.50 766.50 727.47 a 623.00 380.50 108.50 56.50 4531.97
1925 61.00 109.50 164.00 355.50 572.50 651.00 835.50 752.50 613.00 453.00 124.00 120.50 4812.00
1926 61.50 174.00 356.00 515.00 445.00 625.50 815.50 810.00 517.00 475.00 291.50 101.00 5187.00
1927 68.50 63.00 126.50 254.50 402.00 652.50 752.50 771.50 475.00 378.00 192.50 23.00 4159.50
1928 16.50 44.62 c 204.50 206.50 545.50 526.50 729.00 713.00 b 585.50 456.50 204.50 27.00 4259.62
1929 11.50 0.50 155.00 222.50 503.50 603.00 805.50 816.85 a 634.00 486.00 118.00 96.50 4452.85
1930 2.00 89.00 272.50 420.00 396.00 596.50 740.00 836.50 637.50 367.00 177.50 36.50 4571.00
1931 71.00 82.50 183.00 354.50 604.50 616.50 792.57 a 794.00 547.00 402.50 111.50 12.50 4572.07
1932 16.00 24.50 143.50 278.50 436.00 680.00 685.50 752.50 663.00 464.50 200.00 34.00 4378.00
1933 27.00 5.00 112.00 272.50 322.00 537.50 772.50 793.50 461.00 436.50 167.00 133.50 4040.00
1934 119.00 202.00 396.00 494.50 552.50 591.50 701.00 818.50 597.00 478.90 b 220.00 64.00 5234.90
1935 17.05 a 101.00 63.50 255.00 465.50 620.00 763.50 755.50 692.50 370.00 68.50 60.50 4232.55
1936 52.00 18.50 114.50 399.50 590.55 a 643.50 754.00 772.00 595.00 503.50 177.50 81.50 4702.05
1937 0.00 7.50 133.50 187.50 478.50 654.50 804.50 723.50 614.50 491.50 196.50 93.50 4385.50
1938 39.00 56.00 126.50 313.00 501.00 632.00 856.50 698.00 705.00 435.50 72.93 a 57.00 4492.43
1939 44.50 19.00 177.00 356.00 524.00 503.50 789.50 800.00 617.50 389.00 194.00 116.00 4530.00
1940 52.70 a 110.50 242.00 357.00 604.00 684.50 765.00 818.50 666.00 478.50 100.00 85.00 4963.70
1941 71.50 158.50 347.50 376.50 498.00 584.00 913.00 758.50 538.50 383.00 211.00 72.50 4912.50
1942 29.50 24.00 138.50 325.00 410.50 523.50 834.00 821.00 665.00 445.00 103.50 34.00 4353.50
1943 10.50 77.50 122.50 373.00 390.00 543.50 797.73 a 704.00 702.00 410.00 181.50 41.50 4353.73
1944 30.00 28.00 130.50 278.50 484.00 573.50 792.00 762.00 675.50 516.50 112.50 38.50 4421.50
1945 70.50 63.50 73.50 209.50 502.00 578.50 811.50 766.50 541.50 375.50 95.00 72.00 4159.50
1946 35.00 60.50 111.50 269.50 527.50 539.50 769.00 748.50 538.50 238.00 44.00 82.50 3964.00
1947 8.50 110.50 238.50 311.00 564.50 528.62 a 704.50 664.00 622.76 a 350.50 126.00 37.50 4266.88
1948 18.50 30.00 71.00 172.50 423.50 677.50 671.00 662.00 527.07 a 299.50 34.00 3.50 3590.07
1949 0.00 a 17.00 89.26 b 300.00 506.00 571.03 a 694.92 a 717.13 a 627.93 a 196.33 a 271.50 26.35 a 4017.46
1950 0.00 11.50 50.50 166.00 346.50 528.00 751.23 a 817.50 589.50 312.50 106.00 124.00 3803.23
1951 10.69 b 41.50 53.45 b 325.00 423.67 a 639.50 747.10 a 707.66 b 628.50 239.73 a 83.79 a 7.75 a 3908.34
1952 4.13 a 29.54 b 83.00 320.17 a 483.50 539.00 811.50 793.50 697.24 a 553.50 94.00 18.60 a 4427.68
1953 135.37 a 64.00 122.97 a 237.50 383.50 464.50 748.50 740.00 643.50 439.50 201.00 59.00 4239.33
1954 4.13 a 49.50 76.00 223.00 477.40 a 466.50 652.07 b 642.22 a 565.50 359.27 c 234.31 a 39.27 a 3789.16
1955 9.00 25.00 45.50 119.48 a 345.65 a 552.50 653.21 c 723.33 a 578.28 a 365.59 b 106.03 a 28.93 a 3552.51
1956 24.28 a 0.00 62.00 298.45 a 514.08 a 504.31 a 787.92 a 707.50 585.50 277.50 108.00 68.00 3937.54
1957 0.00 40.50 111.50 287.50 499.50 574.00 700.50 662.37 a 712.00 350.30 a 120.00 68.00 4126.17
1958 76.00 200.00 128.50 281.50 648.00 719.00 922.50 880.00 635.50 504.00 197.00 157.00 5349.00
1959 75.00 32.50 137.50 274.50 405.50 601.50 819.00 709.00 520.50 402.50 185.50 78.50 4241.50
1960 27.50 89.50 174.50 289.50 387.50 632.00 835.00 683.50 614.50 416.00 157.50 68.00 4375.00
1961 154.50 111.50 164.00 236.00 453.00 742.00 857.00 888.50 535.00 359.50 92.50 68.00 4661.50
1962 74.00 130.00 93.00 339.50 331.00 586.50 738.00 731.50 635.50 420.00 198.10 a 123.50 4400.60
1963 19.50 228.50 146.50 206.50 481.00 543.50 685.50 765.00 754.00 477.00 174.50 95.00 4576.50
1964 52.00 65.00 116.00 189.50 384.00 529.00 742.00 708.50 574.50 507.50 99.50 52.50 4020.00
1965 75.00 70.50 209.50 326.50 377.50 595.00 836.50 817.00 583.50 540.00 254.50 65.10 a 4750.60
1966 40.50 61.00 164.50 312.00 484.50 582.50 726.00 802.00 668.00 420.50 201.00 95.00 4557.50
1967 62.00 105.00 79.00 176.50 472.50 686.50 814.00 979.50 769.00 450.00 241.00 29.00 4864.00
1968 58.00 228.00 250.50 229.00 472.50 595.50 807.50 726.50 632.00 357.50 177.50 25.50 4560.00
1969 8.00 28.50 182.00 264.00 554.50 638.00 697.50 669.00 632.50 387.50 205.50 69.50 4336.50
1970 79.00 188.00 173.50 160.50 455.50 688.00 781.00 806.50 540.50 374.50 192.50 23.00 4462.50
1971 62.00 86.50 77.50 256.00 506.00 495.00 795.00 830.00 537.00 340.50 116.50 14.50 4116.50
1972 23.50 88.00 216.00 153.50 515.50 596.50 801.50 831.00 533.00 358.50 183.50 70.00 4370.50
1973 45.50 145.50 150.00 301.50 534.00 595.50 827.00 699.00 666.00 363.00 58.00 113.00 4498.00
1974 65.50 36.50 176.00 256.50 372.00 619.00 733.50 786.50 760.50 459.50 180.00 104.50 4550.00
1975 64.50 54.00 94.00 158.00 452.50 544.50 770.00 657.00 734.50 367.00 137.00 112.50 4145.50
1976 82.00 65.00 102.00 264.50 497.00 528.50 736.00 700.08 a 667.00 447.00 288.00 92.50 4469.58
1977 66.50 176.00 101.00 359.00 342.00 668.50 744.50 894.00 554.50 428.32 a 143.00 89.00 4566.32
1978 76.95 c 133.00 254.50 255.50 399.50 670.00 782.50 763.00 572.00 519.00 89.50 24.50 4539.95
1979 1.00 43.00 243.50 276.00 510.50 626.50 795.00 752.50 735.50 487.50 179.00 142.00 4792.00
1980 21.50 112.50 130.50 362.50 442.50 516.50 796.50 712.00 665.00 533.50 233.50 162.75 a 4689.25
1981 191.68 a 134.50 242.50 324.50 474.00 571.00 754.00 898.50 681.50 389.00 247.50 91.50 5000.18
1982 30.50 85.50 134.00 217.50 461.50 676.50 738.00 799.00 649.50 458.50 120.00 55.00 4425.50
1983 158.00 178.00 264.50 326.00 574.00 576.50 709.50 785.00 587.50 433.00 200.00 29.00 4821.00
1984 108.00 147.00 275.00 224.50 426.00 560.00 822.50 816.50 645.00 340.00 139.50 10.00 4514.00
1985 33.50 46.00 107.00 338.50 472.50 657.00 924.50 787.50 542.50 381.50 66.50 6.20 a 4363.20
1986 126.00 106.50 349.50 275.50 488.50 715.00 702.00 904.50 554.50 515.50 201.50 69.50 5008.50
1987 53.50 145.00 215.00 421.00 556.50 719.00 764.00 879.50 0.00 z 587.50 238.50 56.00 4635.50
1988 30.00 157.00 161.00 315.50 459.00 610.00 780.00 819.50 699.50 574.50 159.00 90.00 4855.00
1989 47.00 21.00 147.50 419.50 503.50 689.50 741.00 750.00 728.00 419.50 227.50 82.00 4776.00
1990 76.50 72.00 235.00 417.00 446.00 634.50 894.50 891.00 761.50 377.50 196.00 35.50 5037.00
1991 49.00 246.50 148.00 256.00 365.00 531.00 885.00 867.50 778.00 494.00 206.50 108.00 4934.50
1992 124.50 256.00 377.50 411.50 692.50 749.50 886.00 893.50 668.00 481.00 186.00 18.00 5744.00
1993 39.50 88.00 228.50 320.50 619.00 608.50 669.00 830.00 741.50 559.50 95.50 71.50 4871.00
1994 128.00 44.00 284.00 362.00 584.00 589.50 889.50 858.50 777.00 432.50 42.00 62.00 5053.00
1995 114.00 190.50 226.50 295.50 562.00 627.50 873.50 777.50 736.50 423.00 302.00 103.00 5231.50
1996 91.00 148.50 204.00 367.50 424.50 646.50 943.50 914.50 614.50 445.00 150.50 42.50 4992.50
1997 68.50 98.50 171.00 301.00 631.00 0.00 z 819.00 894.50 726.00 382.00 289.50 54.00 4435.00
1998 109.50 142.50 216.00 337.00 430.00 645.00 886.00 889.50 728.00 429.00 194.00 62.00 5068.50
1999 73.50 66.50 124.00 272.00 389.00 565.50 782.00 850.00 716.50 467.00 258.50 109.00 4673.50
2000 25.00 118.00 150.00 383.50 438.50 649.50 779.50 762.50 643.00 425.50 98.50 67.00 4540.50
2001 80.50 79.00 189.50 222.50 543.50 554.00 711.00 802.00 668.00 378.50 220.00 43.00 4491.50
2002 52.50 95.00 107.00 281.50 408.50 640.00 827.00 795.50 661.50 399.50 229.00 93.00 4590.00
2003 178.00 110.00 198.50 238.50 464.50 700.00 855.50 853.00 708.00 486.00 122.50 75.00 4989.50
2004 50.00 106.50 301.50 412.50 501.00 652.00 872.50 829.50 600.00 402.50 161.50 89.50 4979.00
2005 102.50 123.50 277.50 300.50 547.50 550.00 814.50 832.00 575.50 446.50 133.00 63.50 4766.50
2006 95.00 74.00 138.50 312.50 530.00 675.00 848.00 785.00 666.50 370.50 161.00 76.00 4732.00
2007 37.50 106.00 250.00 294.00 363.50 f 442.00 g 616.50 h 764.00 568.00 309.50 104.00 11.00 m 2433.00
2008 16.50 92.00 73.50 159.50 436.50 508.50 779.65 a 798.50 629.50 347.00 226.50 42.00 4109.65
2009 22.50 60.50 55.00 221.00 462.00 606.00 883.00 783.00 669.50 338.00 127.50 31.50 4259.50
2010 120.50 146.50 182.00 226.50 319.00 483.50 715.50 743.50 612.50 416.50 153.00 54.00 4173.00
2011 70.00 34.50 71.50 121.00 306.00 502.50 664.50 756.00 705.50 400.00 102.86 b 24.00 3758.36
2012 51.00 75.00 76.50 263.00 425.00 492.00 717.00 813.50 667.76 a 402.50 199.00 35.00 4217.26
2013 19.00 51.00 182.38 a 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 252.38
Period of Record Statistics
MEAN 50.91 82.26 162.36 282.68 461.95 596.83 778.67 773.71 619.78 408.81 160.10 60.05 4458.63
S.D. 41.66 58.38 79.58 78.66 82.69 72.00 69.93 74.77 82.08 76.34 61.88 36.82 423.64
SKEW 1.03 0.92 0.73 0.14 0.08 0.45 0.18 -0.20 -0.59 -0.26 0.12 0.54 0.10
MAX 191.68 256.00 396.00 515.00 692.50 861.50 953.50 979.50 778.00 587.50 302.00 162.75 5744.00
MIN 0.00 0.00 23.50 119.48 258.00 464.50 625.50 558.50 273.00 196.33 34.00 1.00 3552.51
NO YRS 111 110 109 110 108 110 111 111 110 110 111 112 100