HALFWAY, OREGON

Monthly Total Growing Degree Days

(353604)

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
1936 0.00 z 0.00 z 0.00 z 0.00 z 611.00 712.50 1011.50 990.50 642.50 445.50 48.00 1.00 4462.50
1937 0.00 0.00 53.50 163.50 556.00 650.50 1059.50 905.50 734.00 421.50 57.50 9.50 4611.00
1938 0.00 10.00 38.00 264.00 462.00 776.50 1000.50 869.00 802.00 354.50 10.56 c 0.00 4587.06
1939 2.00 0.00 122.97 a 335.50 628.04 d 563.50 1014.00 1033.50 694.00 297.50 69.00 33.50 4793.50
1940 0.50 7.00 z 24.00 x 237.00 628.50 799.50 946.50 1002.00 630.00 376.00 8.00 1.50 4629.50
1941 0.00 0.00 z 128.00 275.00 481.00 0.00 z 335.50 t 299.50 q 458.00 230.00 69.50 18.08 a 1659.58
1942 0.00 0.00 a 24.00 289.82 b 350.00 544.29 b 463.00 p 899.50 579.50 308.50 16.00 0.00 3011.61
1943 0.00 0.00 45.50 343.39 b 0.00 z 532.00 896.42 a 808.00 673.00 316.72 a 12.00 2.00 3629.03
1944 0.00 0.50 36.50 234.50 500.00 580.00 883.50 809.00 601.50 393.00 32.50 0.00 4071.00
1945 0.00 6.50 t 59.50 230.69 a 471.72 a 562.00 892.50 871.50 502.50 308.97 a 26.00 0.00 a 3925.37
1946 0.00 0.00 47.00 269.50 483.50 0.00 z 871.50 845.27 a 471.00 105.00 26.00 22.00 3140.77
1947 0.00 7.00 109.00 215.00 559.50 526.50 842.00 745.50 546.00 0.00 z 7.50 0.00 3558.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 760.50 719.00 496.55 a 259.50 11.50 q 0.00 o 2235.55
1949 0.00 f 1.00 27.79 b 282.50 550.25 c 626.00 831.00 845.27 a 621.43 b 114.00 68.79 a 0.00 3968.03
1950 0.50 0.00 9.00 161.00 325.50 d 582.50 814.78 a 822.50 518.00 352.48 d 50.50 k 0.00 3586.26
1951 0.00 e 1.22 e 7.00 217.00 440.50 528.50 873.00 780.50 552.50 188.58 a 12.00 f 4.13 a 3592.93
1952 0.00 a 0.00 a 2.50 254.00 305.50 i 371.00 i 811.50 795.31 b 605.50 225.00 n 6.00 j 0.00 e 2468.81
1953 8.50 h 0.00 33.50 f 165.50 275.00 482.00 862.50 819.00 639.83 a 312.00 41.11 c 0.00 3596.94
1954 0.52 a 20.42 d 35.13 a 197.50 482.29 e 354.00 m 885.00 702.50 516.21 a 198.29 b 74.50 4.00 3116.36
1955 0.00 f 0.00 b 1.00 u 79.50 372.00 d 650.50 831.32 a 835.45 a 532.50 b 264.00 13.97 a 5.17 a 3584.40
1956 0.00 4.50 56.32 a 234.50 462.86 b 578.40 e 910.00 782.00 563.00 204.08 a 9.31 a 1.50 3806.47
1957 0.00 1.00 54.77 a 233.28 a 501.50 629.00 833.00 762.08 a 618.10 a 217.00 5.36 b 3.00 3858.09
1958 0.00 1.00 30.00 158.00 620.50 687.50 898.50 916.00 493.50 307.00 49.50 3.50 4165.00
1959 5.00 1.50 35.50 230.00 315.50 682.00 865.50 741.00 466.55 a 221.50 7.00 0.00 3571.05
1960 0.00 b 0.00 b 44.20 d 211.00 299.31 b 630.50 685.00 j 689.50 610.34 a 224.00 32.00 1.50 2742.36
1961 0.00 7.50 73.00 175.00 431.00 785.50 919.50 973.00 408.00 201.50 0.50 0.00 3974.50
1962 2.50 0.00 27.00 288.00 361.50 605.00 784.50 753.50 569.00 227.50 53.50 1.50 3673.50
1963 0.00 22.50 78.00 137.00 483.00 587.50 766.50 832.00 704.00 375.50 40.50 0.00 4026.50
1964 0.00 0.00 3.50 138.00 393.50 592.50 861.00 742.50 463.00 289.00 32.50 8.00 3523.50
1965 1.50 1.50 34.00 264.50 378.00 624.50 859.50 775.00 414.50 338.00 83.50 5.00 3779.50
1966 4.00 3.00 101.50 239.50 536.50 587.50 859.50 835.00 684.00 206.00 69.50 0.00 4126.00
1967 2.00 0.00 42.00 82.50 411.00 628.50 935.00 947.00 706.50 227.00 56.50 0.00 4038.00
1968 0.00 12.00 108.00 138.50 390.50 631.00 912.50 718.50 517.00 180.50 19.00 5.00 3632.50
1969 0.00 0.00 48.50 246.50 534.50 664.00 824.50 831.00 589.50 132.00 42.00 2.50 3915.00
1970 3.00 1.00 39.00 68.50 398.00 721.00 895.00 873.00 400.00 158.00 23.50 0.00 3580.00
1971 0.00 0.00 33.50 180.00 491.50 573.00 887.00 981.50 403.00 202.00 2.00 0.00 3753.50
1972 1.50 4.00 112.50 133.50 489.50 653.50 827.50 906.00 434.50 287.50 36.00 0.50 3886.50
1973 0.00 1.50 40.00 174.50 498.50 642.50 896.50 822.00 552.00 212.00 35.50 0.00 3875.00
1974 8.00 0.50 69.50 187.00 363.50 770.50 845.50 804.50 595.00 244.50 33.00 1.50 3923.00
1975 0.00 0.50 1.00 95.00 375.50 575.50 993.00 745.00 594.50 276.50 33.50 0.00 3690.00
1976 0.00 8.50 6.50 180.50 482.00 543.00 897.00 719.50 618.50 233.50 86.50 0.00 3775.50
1977 0.00 4.00 28.00 296.50 346.50 787.50 840.50 875.00 525.00 246.50 30.50 5.50 3985.50
1978 0.00 10.50 179.50 188.50 347.50 615.50 840.50 745.00 495.00 267.00 22.00 0.00 3711.00
1979 0.00 1.00 51.50 197.00 453.50 637.00 895.00 860.00 645.00 345.50 20.00 0.00 4105.50
1980 0.00 25.00 43.00 282.00 488.00 550.00 859.00 705.00 577.00 253.50 67.50 3.50 3853.50
1981 0.00 14.00 74.00 250.50 417.50 566.50 793.00 918.00 574.00 178.50 78.00 11.50 3875.50
1982 0.00 1.00 26.00 138.00 363.50 674.50 824.00 869.00 519.00 236.00 5.50 0.00 3656.50
1983 0.50 12.50 116.50 132.00 458.50 602.00 768.00 916.50 457.50 270.50 75.00 0.50 3810.00
1984 0.00 0.00 18.00 149.00 359.50 542.00 866.50 914.00 491.50 188.00 19.00 0.00 3547.50
1985 0.00 0.00 3.00 302.50 485.50 668.50 985.50 745.00 401.00 178.50 15.50 0.00 3785.00
1986 0.00 25.93 a 185.50 180.00 465.50 782.00 748.00 899.00 411.00 257.00 21.00 0.00 3974.93
1987 0.00 0.00 69.00 373.00 550.50 684.50 820.47 a 765.00 608.79 a 291.50 73.00 31.00 4266.76
1988 0.00 b 5.02 c 66.00 290.50 441.50 719.50 869.50 807.50 529.00 486.50 56.00 0.00 4271.02
1989 0.00 0.00 32.55 a 321.50 401.00 684.50 893.50 749.00 548.50 249.00 32.50 0.00 3912.05
1990 2.00 0.00 93.00 363.00 373.50 624.50 922.00 852.50 736.50 215.00 31.00 0.00 4213.00
1991 0.00 1.50 52.00 183.50 362.50 551.50 895.00 930.00 648.50 305.50 16.50 0.00 3946.50
1992 0.00 50.00 192.00 317.00 598.00 760.00 783.50 835.50 507.50 302.00 20.00 0.00 4365.50
1993 0.00 0.00 43.50 184.50 521.50 532.50 562.50 619.00 451.00 329.00 11.00 0.00 3254.50
1994 0.00 0.00 87.00 311.00 549.00 648.00 955.00 892.00 645.00 219.50 7.50 0.00 4314.00
1995 1.50 44.50 78.50 170.50 450.00 603.50 839.00 730.00 612.00 146.00 52.00 13.50 3741.00
1996 0.00 12.00 85.50 213.00 367.50 641.50 938.50 857.50 499.50 268.00 39.00 5.00 3927.00
1997 3.00 1.00 115.00 184.50 533.50 649.00 830.00 874.00 640.00 238.00 31.00 0.00 4099.00
1998 0.00 1.50 97.00 213.00 445.00 589.00 1028.00 911.00 700.50 188.50 19.50 6.00 4199.00
1999 0.00 0.00 35.50 146.50 364.00 623.50 821.50 902.50 510.50 257.50 90.50 0.00 3752.00
2000 0.00 0.00 50.50 301.00 487.50 668.00 894.00 870.00 522.00 215.50 3.50 0.00 4012.00
2001 0.00 0.00 92.50 197.00 520.00 645.50 907.50 947.00 662.00 223.00 71.50 0.00 4266.00
2002 0.00 0.00 28.50 230.50 441.50 730.50 992.00 766.50 567.00 170.00 36.50 12.00 3975.00
2003 1.00 16.00 139.50 203.50 461.50 696.50 1045.00 945.00 629.00 379.50 20.00 5.50 4542.00
2004 0.00 0.00 99.50 281.50 439.50 701.50 952.00 886.00 532.50 298.00 33.50 0.00 4224.00
2005 0.00 3.50 91.00 206.00 477.00 577.00 940.00 878.00 508.00 249.00 11.50 0.00 3941.00
2006 0.00 1.00 23.50 239.50 473.00 718.50 1036.50 804.00 547.00 204.00 84.00 3.50 4134.50
2007 0.00 4.00 147.50 252.00 520.50 729.50 1108.00 853.00 552.00 233.50 36.00 3.50 4439.50
2008 0.00 0.00 4.50 105.00 468.50 634.50 911.00 869.00 572.50 247.00 56.00 4.00 3872.00
2009 0.00 1.50 31.50 215.00 467.50 660.00 932.00 879.50 670.00 155.50 26.50 0.00 4039.00
2010 0.00 0.00 36.00 182.50 301.00 580.50 847.00 789.50 579.50 47.50 z 0.00 z 0.00 z 3316.00
2011 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 55.50 z 903.50 993.50 747.50 326.50 4.50 0.00 2975.50
2012 0.00 1.00 111.50 339.83 a 462.00 682.00 1064.00 983.50 686.50 248.00 84.00 19.00 4681.33
2013 0.00 0.00 a 101.78 a 12.00 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 101.78
Period of Record Statistics
MEAN 0.54 4.82 62.68 218.26 452.84 637.61 887.43 840.59 567.92 257.80 36.56 3.45 3988.42
S.D. 1.35 9.53 44.77 69.48 81.99 73.48 86.10 85.65 91.56 75.16 25.15 6.68 307.70
SKEW 3.39 2.96 0.93 0.08 0.06 0.35 -0.17 -0.02 0.15 0.60 0.54 2.83 0.49
MAX 8.00 50.00 192.00 373.00 628.50 799.50 1108.00 1033.50 802.00 486.50 90.50 33.50 4793.50
MIN 0.00 0.00 1.00 68.50 275.00 482.00 562.50 619.00 400.00 105.00 0.50 0.00 3254.50
NO YRS 72 72 72 74 73 71 74 76 77 74 72 75 58