TROUTDALE SUBSTATION, OREGON

Monthly Total Growing Degree Days

(358634)

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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 788.00 765.18 a 608.50 394.00 100.00 25.50 2681.18
1949 0.00 76.50 192.20 a 370.00 597.50 627.00 786.50 813.00 692.50 272.00 350.00 74.40 a 4851.60
1950 3.50 74.50 149.00 263.79 a 448.50 653.00 810.00 883.00 640.50 378.20 a 207.50 165.50 4676.99
1951 63.00 89.00 110.50 439.50 536.00 697.00 850.00 795.50 733.00 416.00 171.00 37.00 4937.50
1952 26.00 73.54 a 133.00 353.50 527.00 595.00 862.00 864.90 a 747.41 a 647.50 131.50 70.00 5031.35
1953 245.93 a 110.00 188.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 296.90 a 132.50 973.33
1954 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 0.00 z 0.00
1955 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 0.00 z 0.00
1956 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 0.00 z 0.00
1957 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 0.00 z 0.00
1958 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 0.00 z 0.00
1959 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 630.50 f 594.50 443.50 160.86 a 56.50 1255.36
1960 25.00 98.81 b 192.50 330.00 425.73 a 650.50 853.00 754.50 632.50 455.00 196.00 50.50 f 4613.55
1961 137.95 a 186.50 223.00 298.00 515.63 a 763.89 c 881.00 939.82 a 588.50 396.00 99.50 95.58 a 5125.37
1962 82.00 105.50 146.50 395.50 409.00 635.50 809.58 e 804.50 694.00 454.50 270.50 113.50 4920.58
1963 29.00 203.50 201.50 265.50 525.00 610.00 291.00 r 802.50 739.50 478.50 235.00 43.00 4133.00
1964 74.00 77.00 165.00 250.00 405.00 579.50 597.00 g 750.89 d 593.50 496.00 112.50 103.00 3606.39
1965 56.50 108.50 295.00 373.00 449.00 646.03 a 911.18 c 906.50 642.50 542.50 b 310.00 97.50 5338.21
1966 95.50 99.50 214.50 410.00 552.00 662.50 792.50 844.00 701.00 409.50 230.50 155.00 5166.50
1967 187.00 137.00 168.00 258.50 544.64 b 784.00 909.50 1021.50 816.00 494.50 242.00 103.50 5666.14
1968 75.50 252.50 317.50 300.00 531.00 686.00 887.50 824.50 679.66 a 431.33 b 225.00 48.00 f 5210.48
1969 8.55 b 42.00 264.00 362.50 622.50 802.50 827.50 801.00 704.00 407.13 a 246.00 102.00 5189.69
1970 72.00 197.50 227.50 258.00 512.53 a 773.00 878.50 880.50 604.00 406.00 247.00 61.50 5118.03
1971 119.50 139.50 125.50 297.50 535.50 575.50 869.00 947.50 619.00 388.50 176.00 55.00 4848.00
1972 65.50 128.95 a 274.00 227.00 591.50 683.50 920.50 925.87 a 582.69 d 396.00 243.10 a 124.50 5163.11
1973 65.00 118.00 247.00 364.50 605.57 b 695.00 894.50 779.00 705.00 b 430.38 a 126.00 164.50 5194.45
1974 120.00 103.50 221.50 342.00 469.65 a 726.50 838.03 a 895.50 816.43 b 485.00 257.59 a 176.50 5452.20
1975 117.00 80.00 170.50 c 233.00 549.50 667.50 872.00 776.50 783.50 448.50 199.50 124.00 5021.50
1976 129.50 133.09 a 167.50 334.00 547.50 625.00 848.50 782.00 724.50 461.50 287.00 69.50 5109.59
1977 43.00 156.50 208.00 410.00 445.00 740.00 818.50 987.50 625.50 475.00 177.00 137.50 5223.50
1978 52.50 172.50 293.50 361.00 0.00 z 784.00 880.00 851.00 646.50 535.00 103.50 55.50 4735.00
1979 0.50 90.00 300.00 358.50 580.00 746.00 914.50 841.50 764.00 539.00 162.00 129.50 5425.50
1980 16.02 a 102.50 205.50 425.50 393.00 g 493.50 f 876.04 d 763.67 e 664.80 e 359.50 f 192.50 f 103.50 g 3054.03
1981 149.63 e 145.48 e 305.98 d 269.50 f 392.00 h 660.00 d 825.67 e 733.00 g 564.00 f 418.50 e 240.00 f 100.50 f 2505.27
1982 71.00 130.00 212.50 290.50 539.00 745.50 800.00 850.50 687.50 462.50 151.50 68.00 5008.50
1983 120.38 a 173.00 316.50 363.62 a 401.50 m 627.00 784.00 863.00 627.41 a 412.09 b 293.50 42.88 a 4623.39
1984 112.50 128.50 338.00 312.50 500.50 616.55 a 864.50 879.50 663.50 379.23 a 199.50 33.50 5028.29
1985 1.55 a 60.00 156.00 364.00 545.00 696.50 998.00 838.50 580.50 391.00 96.72 a 1.07 b 4728.84
1986 57.50 85.00 o 232.00 k 321.00 261.50 m 805.86 a 450.50 m 687.00 j 620.50 343.00 i 211.50 26.50 2042.86
1987 41.50 147.00 252.65 a 456.50 632.50 783.00 827.50 900.00 737.59 a 549.00 274.00 82.50 5683.74
1988 35.50 150.00 236.63 a 364.00 518.00 662.50 863.00 812.50 671.50 559.00 247.00 104.50 5224.13
1989 110.50 26.50 203.50 466.50 565.50 763.50 725.50 0.00 z 664.50 396.50 291.92 d 78.50 4292.92
1990 162.00 119.00 322.00 442.50 b 518.00 723.00 955.50 966.50 806.50 416.50 267.50 64.50 5763.50
1991 89.38 a 0.00 z 198.00 359.00 452.50 581.00 913.00 934.00 803.00 502.00 223.00 87.00 5141.88
1992 133.00 248.50 379.00 467.50 707.00 820.00 935.00 650.00 j 655.50 468.50 180.00 13.00 5007.00
1993 52.00 69.00 251.50 377.50 682.00 684.00 765.00 896.00 765.00 560.00 76.00 71.00 5249.00
1994 159.50 55.50 339.50 434.00 663.50 672.50 970.50 916.50 828.00 432.50 78.50 90.00 5640.50
1995 82.50 241.63 a 285.50 352.50 666.50 725.50 949.50 842.00 0.00 z 475.00 311.50 75.00 n 4932.13
1996 57.50 l 89.50 j 175.50 k 270.50 i 219.50 o 431.00 k 458.00 p 537.50 l 261.50 q 301.00 k 92.50 k 22.00 n 0.00
1997 42.50 l 56.50 m 71.50 q 201.50 k 473.50 j 408.50 m 377.50 q 536.50 n 379.00 o 250.50 k 119.00 m 48.50 k 0.00
1998 38.50 o 93.50 i 165.50 l 261.50 i 282.50 m 420.00 k 609.50 l 448.00 q 282.50 s 291.50 m 161.50 m 58.00 q 0.00
1999 66.00 n 45.00 p 77.00 q 133.00 p 140.00 v 356.50 m 501.00 m 374.50 s 23.00 z 449.00 300.50 164.00 913.50
2000 40.00 107.50 186.50 414.00 558.50 721.00 844.00 841.50 694.50 458.00 96.00 42.37 a 5003.87
2001 41.00 63.50 246.00 303.00 568.00 637.00 819.50 875.00 714.00 401.00 237.50 86.50 4992.00
2002 72.50 145.50 175.50 376.50 482.50 714.60 e 868.50 869.50 711.50 433.00 130.50 102.50 5082.60
2003 143.00 114.50 266.00 329.00 520.00 758.50 951.50 907.00 738.60 e 567.00 145.50 38.00 5478.60
2004 40.50 73.00 327.00 450.00 593.50 736.00 947.50 321.00 s 338.00 m 456.50 168.50 0.00 z 3792.50
2005 0.00 z 65.50 263.50 328.00 567.50 585.00 852.50 857.50 578.50 439.50 99.00 47.50 4684.00
2006 93.00 67.50 156.00 333.00 0.00 z 668.00 854.00 760.00 640.00 303.50 104.50 0.00 z 3979.50
2007 0.00 z 60.00 186.00 c 218.00 407.00 540.00 798.00 829.00 631.50 367.00 155.50 44.50 4236.50
2008 28.00 117.00 126.00 218.00 511.50 578.50 823.50 863.00 674.50 387.50 255.00 64.50 4647.00
2009 40.00 60.50 126.50 298.00 543.00 703.00 936.00 861.00 747.00 390.00 193.00 26.00 4924.00
2010 121.50 140.50 249.00 297.50 410.50 562.00 783.00 811.00 672.50 466.50 174.50 g 54.50 4568.50
2011 108.50 53.00 171.00 115.50 k 391.50 596.50 750.50 853.00 748.00 448.00 134.00 38.00 4292.00
2012 50.50 72.50 140.53 a 379.66 a 482.50 585.00 798.50 896.00 697.00 452.00 225.00 a 86.50 4865.69
2013 31.00 83.00 253.17 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 367.17
Period of Record Statistics
MEAN 77.32 114.60 223.53 345.04 530.88 680.00 858.47 855.60 686.58 446.70 198.34 80.61 5140.59
S.D. 52.51 52.10 65.86 66.80 75.73 72.71 60.87 62.46 67.86 66.10 71.27 43.01 285.21
SKEW 0.75 0.88 0.31 -0.06 0.15 0.05 0.16 0.38 0.30 0.37 0.02 0.47 0.49
MAX 245.93 252.50 379.00 467.50 707.00 820.00 998.00 1021.50 828.00 647.50 350.00 176.50 5763.50
MIN 0.00 26.50 110.50 218.00 391.50 540.00 725.50 750.89 578.50 272.00 76.00 1.07 4647.00
NO YRS 53 53 54 51 47 52 51 49 52 54 54 50 34