THE DALLES, OREGON

Monthly Total Growing Degree Days

(358407)

Base Temperature = 40 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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 976.00 944.47 a 671.38 a 334.36 c 73.45 a 9.00 3008.65
1949 0.00 40.50 196.00 503.50 742.00 853.50 1020.50 1029.72 a 824.48 a 325.00 238.00 55.00 5828.20
1950 1.50 31.00 144.00 341.50 580.22 a 812.50 1030.50 1078.80 a 860.00 409.00 164.50 63.50 5517.02
1951 30.00 49.00 152.50 498.00 659.50 889.66 a 1075.00 1007.00 839.00 437.00 102.50 34.00 5773.16
1952 0.00 46.00 173.50 451.00 684.00 762.50 1080.50 1029.50 887.07 a 654.00 56.90 a 19.50 5844.47
1953 169.50 121.00 246.50 359.00 566.50 670.00 1039.00 997.00 838.45 a 518.50 203.50 98.00 5826.95
1954 17.50 76.00 144.00 394.50 664.00 709.00 926.50 889.70 a 762.50 390.00 274.00 15.00 5262.70
1955 21.00 57.00 109.50 254.50 575.05 a 830.50 922.00 1044.00 791.50 476.00 111.50 24.50 5217.05
1956 15.50 22.79 a 204.00 486.50 806.50 788.50 1128.50 1033.00 819.50 438.50 136.00 113.00 5992.29
1957 0.00 45.00 182.50 462.50 793.00 890.50 991.00 952.00 896.50 420.00 125.50 73.50 5832.00
1958 54.00 190.50 195.00 411.50 867.00 984.50 1218.50 1196.00 811.00 548.50 201.00 52.00 6729.50
1959 71.00 70.00 239.00 452.00 571.50 836.50 1118.50 1013.50 732.00 519.00 138.00 45.00 5806.00
1960 8.00 90.00 245.50 414.00 563.50 882.50 1170.00 969.50 804.50 543.00 158.00 12.50 5861.00
1961 46.00 162.50 278.00 406.50 628.78 a 991.50 1116.00 1194.50 707.50 437.00 47.50 65.00 6080.78
1962 80.50 94.00 155.50 499.50 515.50 792.50 1030.50 973.00 817.50 493.50 232.50 71.30 a 5755.80
1963 27.90 a 115.00 246.50 356.00 679.93 a 819.50 907.00 1053.00 937.50 537.50 212.50 10.00 5902.33
1964 62.00 138.50 197.00 368.50 570.50 764.50 1042.00 937.50 731.00 484.00 90.00 40.00 5425.50
1965 50.50 145.00 231.50 481.50 622.00 837.00 1102.50 1057.50 721.00 589.00 234.00 58.50 6130.00
1966 27.50 94.00 224.00 473.00 701.50 770.50 989.50 1048.32 a 864.00 469.50 214.00 68.00 5943.82
1967 129.50 155.50 184.00 301.50 679.00 954.50 1123.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3527.50
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 52.00 171.00 294.50 621.50 784.66 a 1103.50 896.50 782.00 392.50 113.79 a 85.00 5296.95
1976 37.50 76.64 a 174.12 a 356.00 638.00 727.00 1002.69 b 919.00 801.00 435.11 c 183.00 29.50 5379.56
1977 8.50 130.00 228.50 537.00 548.50 950.17 a 1042.24 b 1202.50 708.62 a 458.91 c 145.50 123.47 b 6083.91
1978 20.00 79.00 326.00 407.00 606.57 a 911.00 1078.50 1006.00 695.00 498.58 a 74.50 48.71 c 5750.86
1979 0.00 67.00 277.00 463.50 766.50 908.50 1090.00 1005.84 c 871.50 585.50 94.66 a 92.50 6222.49
1980 2.00 28.50 223.50 457.76 a 684.07 a 769.14 a 1079.00 966.17 a 801.50 491.87 a 191.00 59.23 c 5753.73
1981 88.50 107.33 a 283.81 b 430.34 a 691.62 b 758.28 a 1014.50 1142.87 a 795.00 a 424.50 190.00 58.00 5984.75
1982 82.00 100.50 210.00 320.50 671.00 944.00 1024.50 1077.50 767.50 411.50 87.50 47.50 5744.00
1983 68.00 108.00 326.00 411.50 755.50 799.50 958.00 1061.00 688.50 428.00 243.00 10.50 5857.50
1984 60.00 78.00 311.00 380.50 568.50 771.00 1112.00 1039.50 736.00 384.00 109.00 15.00 5564.50
1985 0.00 57.50 199.00 472.00 659.50 857.00 1234.00 956.50 609.50 410.00 100.00 0.00 5555.00
1986 14.00 83.00 332.00 357.50 658.00 953.50 922.77 a 1172.00 670.50 482.00 173.00 4.50 5822.77
1987 4.50 70.00 237.50 507.50 756.50 935.00 1010.00 1067.50 875.00 555.50 205.50 60.97 a 6285.47
1988 8.27 a 139.00 255.00 457.00 611.00 804.00 1082.50 1002.00 797.00 679.50 214.50 46.00 6095.77
1989 76.00 20.00 183.00 509.50 654.00 883.50 969.00 994.50 820.50 480.50 241.00 51.50 5883.00
1990 86.00 85.00 286.00 543.50 592.00 829.50 1124.50 1079.50 939.50 415.50 228.00 25.00 6234.00
1991 0.00 z 152.00 168.00 396.00 565.00 717.50 1097.50 1131.00 863.00 498.00 150.00 74.00 5812.00
1992 65.50 157.50 367.50 481.00 781.00 1016.00 1085.00 1097.00 734.00 520.50 171.00 30.50 6506.50
1993 2.50 14.50 172.50 386.00 771.50 779.00 849.50 985.50 814.50 554.50 64.00 34.50 5428.50
1994 84.00 37.00 266.00 497.50 729.50 791.00 1159.50 1066.50 888.50 455.00 73.50 60.50 6108.50
1995 12.00 153.00 220.50 376.00 721.00 0.00 z 1077.50 931.00 868.50 443.00 252.00 49.00 5103.50
1996 54.00 39.50 214.50 422.50 551.00 0.00 z 1136.50 1041.50 711.50 460.00 121.50 14.50 4767.00
1997 27.50 89.00 213.00 368.00 734.50 763.50 985.50 1084.00 834.50 434.00 155.00 34.00 5722.50
1998 31.00 108.00 258.00 410.50 0.00 z 0.00 z 0.00 z 0.00 z 920.50 421.00 195.00 66.00 2410.00
1999 70.50 0.00 z 0.00 z 303.10 a 495.00 713.50 907.00 1036.95 a 695.17 a 367.50 188.50 55.28 a 4832.51
2000 6.00 20.50 143.12 a 405.50 584.00 792.93 a 934.50 934.81 b 673.00 0.00 z 0.00 z 0.50 4494.86
2001 3.00 22.50 204.50 286.50 0.00 z 0.00 z 952.50 0.00 z 806.90 a 415.50 147.50 28.50 2867.40
2002 30.00 65.50 118.32 a 352.00 573.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1138.82
2003 74.00 0.00 z 271.50 335.50 0.00 z 850.00 1090.00 1017.00 815.50 548.50 0.00 z 0.00 z 5002.00
2004 0.00 z 90.50 0.00 z 0.00 z 625.50 805.50 1072.00 1060.00 0.00 z 0.00 z 0.00 z 53.00 3706.50
2005 41.00 0.00 z 265.50 346.50 647.00 0.00 z 1023.50 1028.00 0.00 z 451.50 0.00 z 0.00 z 3803.00
2006 65.50 42.50 159.28 b 393.10 a 650.00 843.62 a 669.50 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2154.00
Period of Record Statistics
MEAN 40.28 83.68 220.70 411.61 653.77 833.30 1045.42 1030.85 793.63 470.76 158.34 46.49 5857.08
S.D. 37.37 45.16 58.36 70.42 83.66 82.61 83.52 75.60 78.19 74.40 60.81 28.95 321.15
SKEW 1.11 0.41 0.37 -0.12 0.38 0.37 -0.11 0.42 -0.19 0.62 -0.06 0.47 0.30
MAX 169.50 190.50 367.50 543.50 867.00 1016.00 1234.00 1202.50 939.50 679.50 274.00 123.47 6729.50
MIN 0.00 14.50 109.50 254.50 495.00 670.00 849.50 889.70 609.50 325.00 47.50 0.00 5217.05
NO YRS 48 48 49 50 48 45 49 47 47 47 45 47 37