THE DALLES, OREGON

Monthly Total Growing Degree Days

(358407)

Base Temperature = 50 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
1893 0.00 0.00 15.00 52.50 256.00 356.00 613.50 638.00 315.00 44.00 19.00 10.50 2319.50
1894 0.00 a 0.00 20.50 91.00 315.00 402.00 704.00 720.50 325.00 109.50 36.50 0.00 2724.00
1895 0.00 1.50 12.00 142.50 258.00 498.50 624.00 635.50 285.50 167.50 18.50 2.50 2646.00
1896 0.00 a 7.50 27.50 46.00 207.00 499.50 829.50 639.50 377.00 136.50 10.50 0.00 2780.50
1897 6.00 0.00 6.50 193.50 447.00 476.50 601.50 788.50 370.00 144.50 33.00 0.00 3067.00
1898 0.00 18.00 8.00 136.50 296.00 477.00 678.00 756.50 406.00 68.50 4.50 0.00 2849.00
1899 11.50 5.50 5.50 62.50 182.50 410.50 685.00 465.53 b 466.50 83.50 6.00 1.50 2386.03
1900 0.00 2.00 74.00 138.00 332.50 537.93 a 667.00 515.50 328.50 92.50 5.00 1.00 2693.93
1901 0.00 9.15 b 1.79 e 71.50 323.00 356.00 575.10 b 734.91 b 298.50 254.00 28.45 a 0.00 d 2652.41
1902 0.00 1.00 4.77 e 95.00 355.00 449.44 c 608.00 649.50 409.66 a 160.00 0.00 0.00 2732.37
1903 0.00 0.00 22.00 66.00 321.50 552.93 a 569.00 610.00 351.00 103.00 15.52 a 0.00 2610.95
1904 0.00 0.00 4.81 b 176.50 303.28 a 473.50 666.00 697.00 443.28 a 143.50 14.50 0.50 2922.87
1905 0.00 3.00 70.00 165.50 304.00 493.00 702.50 622.00 437.00 69.50 3.00 0.00 2869.50
1906 0.00 0.50 37.50 213.50 307.50 394.00 889.50 684.00 420.50 198.92 a 46.50 0.00 3192.42
1907 0.00 0.00 6.50 92.00 405.00 478.00 705.50 534.50 373.00 215.50 0.00 0.00 2810.00
1908 0.00 2.00 44.50 166.50 202.00 446.00 776.50 650.50 416.00 158.10 a 22.50 0.00 2884.60
1909 0.00 a 0.00 a 27.50 74.00 252.50 508.00 579.50 578.48 c 441.50 141.57 a 23.50 0.00 2626.55
1910 0.00 0.00 97.00 171.50 399.50 435.50 701.00 547.00 362.00 204.50 8.50 0.00 2926.50
1911 0.00 0.00 64.50 113.00 193.00 445.00 726.00 600.50 263.28 a 91.50 23.50 0.00 2520.28
1912 0.00 a 3.50 10.50 103.00 342.50 533.00 680.00 594.00 0.00 z 0.00 z 0.00 z 0.00 z 2266.50
1913 0.00 z 0.00 z 3.00 u 138.00 340.00 564.00 732.50 786.88 a 0.00 z 147.50 8.04 b 0.00 c 2716.92
1914 0.00 a 3.63 a 52.50 178.27 d 343.50 463.00 811.00 794.50 334.50 76.50 5.00 c 0.00 3062.40
1915 0.00 0.00 64.00 242.59 a 289.50 524.48 a 680.00 832.00 433.85 d 156.00 9.00 0.00 3231.42
1916 0.00 0.00 27.50 154.50 181.50 447.50 551.44 e 679.00 405.00 92.50 0.50 0.00 a 2539.44
1917 0.00 a 3.50 0.00 42.00 251.00 472.00 758.47 a 768.00 468.00 229.50 2.50 15.50 3010.47
1918 2.50 0.00 27.00 146.00 226.50 616.00 676.00 575.50 545.00 193.00 1.50 9.00 3018.00
1919 0.00 0.00 40.19 d 146.00 299.67 a 450.00 a 824.82 c 681.50 308.50 151.50 4.50 0.00 2906.67
1920 4.00 0.00 20.00 81.00 232.00 455.50 765.50 733.00 368.00 151.00 3.50 0.00 2813.50
1921 5.00 5.00 44.00 102.22 c 347.72 a 552.00 669.00 698.00 349.50 217.00 8.00 0.00 2997.44
1922 0.00 0.00 b 1.55 a 120.00 a 356.50 681.21 a 604.00 h 713.55 c 405.00 d 121.00 k 0.00 b 0.00 c 2277.81
1923 0.00 c 0.00 d 81.50 204.50 408.50 577.50 778.50 833.50 538.50 196.00 12.00 0.00 a 3630.50
1924 0.00 5.91 b 8.00 185.89 b 530.00 598.50 743.00 702.50 415.50 158.00 6.00 17.00 3370.30
1925 2.07 a 5.50 25.50 190.50 432.50 510.00 831.50 675.00 464.50 149.32 a 0.00 0.00 3286.38
1926 0.00 a 12.00 88.72 b 292.50 347.50 649.00 830.28 a 732.78 b 333.00 194.50 12.50 0.00 f 3492.78
1927 0.00 a 0.00 7.50 126.00 232.00 531.50 706.00 720.00 398.33 c 158.50 39.50 11.00 2930.33
1928 0.00 0.00 37.50 73.50 476.00 480.50 785.00 682.50 431.50 121.00 6.00 0.00 3093.50
1929 0.00 0.00 21.00 98.00 343.50 512.50 623.00 745.50 376.00 196.50 18.50 0.00 2934.50
1930 0.00 7.50 62.00 171.00 243.50 430.50 750.00 743.50 478.00 101.50 12.50 0.00 3000.00
1931 0.00 2.50 15.50 107.50 408.50 439.66 a 694.50 677.50 420.50 109.50 5.50 0.00 2881.16
1932 0.00 5.70 a 31.00 c 99.50 283.50 593.50 613.00 621.00 430.00 206.00 17.00 7.00 2907.20
1933 0.00 a 0.00 a 12.00 126.50 189.00 516.50 707.50 718.50 315.50 191.00 31.50 18.17 b 2826.17
1934 0.00 1.00 87.50 287.00 368.50 536.00 658.50 708.50 400.00 187.00 21.00 2.07 a 3257.07
1935 0.00 0.00 c 9.50 92.00 296.00 512.00 693.50 635.50 533.50 147.50 0.00 0.00 a 2919.50
1936 0.00 b 0.00 c 13.00 249.00 423.31 b 564.50 680.00 676.00 404.50 175.50 0.00 3.00 3188.81
1937 0.00 0.00 19.00 45.00 349.50 497.00 705.50 595.50 461.00 228.50 4.50 4.50 2910.00
1938 0.00 0.00 6.50 137.00 313.50 570.00 736.00 607.00 559.00 137.00 15.00 6.00 3087.00
1939 0.00 b 0.00 b 65.88 c 205.50 383.50 440.50 761.50 711.50 487.00 214.00 5.50 0.00 3274.88
1940 0.00 3.50 74.00 147.50 462.50 642.50 712.00 696.50 520.00 233.00 0.00 0.00 3491.50
1941 0.00 0.00 a 73.37 a 214.82 b 333.77 a 549.50 901.00 720.50 383.04 b 168.00 31.00 0.00 a 3374.99
1942 0.00 0.00 12.92 a 154.50 288.50 447.50 778.00 763.50 0.00 z 235.50 8.50 0.00 2688.92
1943 0.00 0.00 30.00 192.50 243.50 430.00 687.50 592.50 527.07 a 196.00 5.00 0.00 z 2904.07
1944 0.00 z 0.00 u 26.50 130.50 354.00 490.50 779.00 701.50 536.50 281.00 4.66 a 0.50 3304.66
1945 9.00 2.50 8.50 129.50 389.00 519.50 828.50 791.50 424.00 243.00 22.50 1.50 3369.00
1946 0.00 0.00 12.50 154.00 429.50 479.00 744.50 742.50 429.00 116.00 3.00 13.00 3123.00
1947 0.00 14.50 73.00 217.00 541.00 462.00 695.00 651.00 488.00 170.00 26.50 0.00 3338.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 666.00 634.47 a 373.45 a 73.07 c 0.00 a 0.00 1746.99
1949 0.00 2.50 3.00 212.50 432.00 553.50 710.50 719.72 a 524.48 a 62.00 20.00 0.00 3240.20
1950 0.00 1.00 3.00 70.50 274.35 a 512.50 720.50 768.80 a 560.00 120.50 17.00 0.00 3048.15
1951 0.00 5.50 12.50 204.50 349.50 589.66 a 765.00 697.00 539.00 155.50 3.00 0.00 3321.16
1952 0.00 0.00 25.00 172.50 375.00 462.50 770.50 719.50 587.07 a 345.00 0.00 a 0.00 3457.07
1953 5.50 4.50 29.50 103.00 256.50 370.00 729.00 687.00 538.45 a 208.50 23.50 1.50 2956.95
1954 0.00 1.50 2.00 115.00 359.00 409.00 616.50 579.70 a 462.50 109.50 28.50 0.00 2683.20
1955 0.00 3.00 1.00 33.50 265.05 a 530.50 612.00 734.00 491.50 178.00 23.00 0.00 2871.55
1956 0.00 0.00 a 22.50 205.50 497.50 488.50 818.50 723.00 519.50 166.00 7.50 11.50 3460.00
1957 0.00 2.00 9.50 171.50 483.00 590.50 681.00 642.00 596.50 120.50 0.50 1.00 3298.00
1958 0.00 17.50 16.00 122.50 557.00 684.50 908.50 886.00 511.00 252.00 40.00 0.50 3995.50
1959 1.00 3.50 18.00 158.50 263.50 536.50 808.50 703.50 432.00 220.00 27.00 5.00 3177.00
1960 0.00 0.00 79.00 144.00 258.00 582.50 860.00 659.50 504.50 241.00 12.50 0.00 3341.00
1961 6.00 6.00 41.00 131.50 320.85 a 691.50 806.00 884.50 407.50 162.50 0.00 0.00 3457.35
1962 9.00 2.00 12.50 203.50 205.50 492.50 720.50 663.00 517.50 186.50 37.50 0.00 a 3050.00
1963 0.00 a 6.00 25.00 82.50 372.00 a 519.50 597.00 743.00 637.50 247.50 10.00 0.00 3240.00
1964 0.00 7.50 22.00 88.00 270.00 464.50 732.00 627.50 431.00 183.50 3.00 0.00 2829.00
1965 2.50 5.00 37.50 197.50 320.00 537.00 792.50 747.50 421.00 280.50 38.00 0.00 3379.00
1966 0.00 0.00 57.00 184.50 393.00 472.00 679.50 738.32 a 564.00 172.50 7.00 0.00 3267.82
1967 10.50 3.50 5.00 53.50 369.00 654.50 813.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1909.50
1968 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
1969 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
1970 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
1971 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
1972 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
1973 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
1974 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
1975 0.00 z 0.00 7.50 50.00 311.50 484.66 a 793.50 586.50 482.00 118.50 16.55 a 18.50 2869.21
1976 0.00 0.52 a 9.82 a 89.50 328.00 427.00 692.69 b 609.00 501.00 161.64 c 25.00 0.00 2844.17
1977 0.00 4.50 17.50 238.50 241.00 650.17 a 732.24 b 892.50 408.62 a 155.55 c 11.50 18.71 b 3370.79
1978 0.00 1.50 99.50 118.50 296.57 a 611.00 768.50 696.00 395.00 205.63 a 1.00 0.00 c 3193.20
1979 0.00 1.50 37.50 168.50 456.50 608.50 780.00 695.84 c 571.50 288.00 0.00 a 3.50 3611.34
1980 0.00 0.00 9.50 178.45 a 374.07 a 469.14 a 769.00 656.17 a 501.50 213.38 a 35.00 2.77 c 3208.97
1981 0.00 9.33 a 32.60 b 158.28 a 381.62 b 458.28 a 704.50 832.87 a 495.00 a 133.00 8.00 2.00 3215.48
1982 4.00 15.00 18.50 73.50 361.00 644.00 714.50 767.50 467.50 134.00 4.00 5.50 3209.00
1983 2.00 4.50 37.00 138.00 446.00 499.50 648.00 751.00 390.50 121.50 19.00 0.00 3057.00
1984 4.50 0.00 38.50 95.50 258.50 471.00 802.00 729.50 436.00 137.50 1.00 0.00 2974.00
1985 0.00 4.00 8.00 195.50 351.50 557.00 924.00 646.50 309.50 135.00 23.50 0.00 3154.50
1986 0.00 7.50 63.00 89.50 354.50 653.50 612.77 a 862.00 370.50 178.00 14.50 0.00 3205.77
1987 0.00 0.00 5.50 212.00 446.50 635.00 700.00 757.50 575.00 245.50 30.50 0.00 a 3607.50
1988 0.00 a 1.50 28.50 168.50 308.50 504.00 772.50 692.00 497.00 378.50 31.50 2.50 3385.00
1989 1.00 0.00 5.50 220.50 344.00 583.50 659.00 684.50 520.50 189.50 49.00 0.00 3257.00
1990 1.50 4.50 56.00 249.00 282.00 529.50 814.50 769.50 639.50 114.00 42.50 0.00 3502.50
1991 0.50 4.50 6.50 125.50 255.00 417.50 787.50 821.00 563.00 241.00 9.50 1.50 3233.00
1992 3.50 6.00 76.50 197.50 471.00 716.00 775.00 787.00 434.00 221.50 6.00 0.00 3694.00
1993 0.00 0.00 13.00 90.00 461.50 479.00 539.50 675.50 514.50 246.50 1.00 0.00 3020.50
1994 2.00 0.00 61.50 200.50 419.50 491.00 849.50 756.50 588.50 152.50 0.50 0.00 3522.00
1995 2.00 9.50 24.00 96.00 411.00 0.00 z 767.50 621.00 568.50 154.50 39.00 4.50 2697.50
1996 0.00 1.50 10.50 141.50 244.50 0.00 z 826.50 731.50 411.50 201.50 4.50 0.00 2573.50
1997 0.00 0.00 32.00 102.00 425.00 463.50 675.50 774.00 534.50 130.50 14.00 0.00 3151.00
1998 0.00 0.00 43.00 131.00 0.00 z 0.00 z 0.00 z 0.00 z 620.50 134.00 13.00 2.00 943.50
1999 0.50 0.00 11.50 72.93 a 205.50 413.50 597.00 726.95 a 395.17 a 95.00 22.50 1.55 a 2542.10
2000 0.00 0.00 3.62 a 136.00 283.50 492.93 a 624.50 624.81 b 379.00 0.00 z 0.00 z 0.00 2544.36
2001 0.00 0.00 18.50 76.50 0.00 z 0.00 z 642.50 0.00 z 506.90 a 131.50 16.50 0.00 1392.40
2002 0.00 8.50 3.10 a 88.00 274.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 373.60
2003 2.50 4.00 47.00 87.00 279.50 550.00 780.00 707.00 515.50 254.00 9.31 a 0.00 z 3235.81
2004 0.00 z 0.00 54.77 a 141.72 a 315.50 505.50 762.00 750.00 0.00 z 199.50 5.50 1.50 2735.99
2005 0.00 0.00 a 42.00 91.00 337.00 421.55 a 713.50 718.00 391.03 a 158.00 4.14 a 0.00 2876.22
2006 0.50 0.00 17.00 107.00 324.50 516.50 0.00 z 693.92 e 464.00 146.50 19.50 0.00 2289.42
2007 3.00 3.00 53.50 91.00 322.00 474.00 787.00 631.50 413.50 78.50 6.50 0.00 z 2863.50
2008 0.00 z 6.00 0.00 z 31.50 316.00 424.00 686.00 0.00 z 0.00 z 44.50 21.50 0.00 z 1529.50
2009 0.00 z 0.00 z 0.00 89.50 302.50 551.00 789.50 730.50 498.50 68.50 0.00 0.00 3030.00
2010 0.00 0.00 5.00 83.00 208.50 396.00 695.50 669.50 424.50 160.50 26.50 0.00 2669.00
2011 2.07 a 0.00 b 4.28 b 20.69 a 181.19 b 402.41 a 599.00 678.90 a 506.90 a 164.50 2.00 0.00 a 2561.93
2012 0.00 9.67 b 3.74 b 124.66 a 269.59 c 388.97 a 704.73 a 730.50 465.00 b 132.27 a 42.50 0.00 2871.62
2013 0.00 a 1.04 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 0.00 z 1.04
Period of Record Statistics
MEAN 0.97 2.78 28.78 135.49 331.00 508.96 722.66 698.01 451.27 166.89 14.17 1.98 3065.91
S.D. 2.27 3.89 25.30 57.85 83.76 78.03 81.24 77.99 82.87 60.90 12.79 4.39 314.87
SKEW 2.86 1.86 1.00 0.35 0.40 0.50 0.05 -0.04 0.06 0.52 0.83 2.62 0.09
MAX 11.50 18.00 99.50 292.50 557.00 716.00 924.00 892.50 639.50 378.50 49.00 18.71 3995.50
MIN 0.00 0.00 0.00 20.69 181.19 356.00 539.50 465.53 263.28 44.00 0.00 0.00 2319.50
NO YRS 107 110 110 112 110 107 109 108 106 108 109 105 91