PARMA EXPERIMENT STN, IDAHO

Monthly Total Growing Degree Days

(106844)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201206
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
1922 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 34.00 f 5.50 5.50
1923 28.50 4.50 106.50 318.50 563.50 700.50 1072.50 1015.00 761.00 327.50 42.00 11.00 4951.00
1924 0.00 45.00 43.50 323.50 728.00 861.96 b 1047.00 927.50 659.50 383.50 89.50 1.60 b 5110.57
1925 0.00 a 43.50 152.00 382.00 657.95 b 806.90 a 1120.00 906.75 a 666.00 302.00 56.00 12.00 5105.09
1926 0.00 a 30.00 171.00 460.00 565.00 892.00 1088.00 976.50 479.50 398.50 66.00 q 37.50 5098.00
1927 1.00 74.50 120.50 273.00 535.50 836.00 1062.50 955.00 604.00 363.00 188.00 9.00 5022.00
1928 6.00 0.00 188.07 a 267.60 e 777.00 761.50 1103.50 932.50 692.50 411.50 94.00 17.50 5251.67
1929 0.00 0.00 160.50 301.00 636.00 759.50 1126.16 b 1181.50 642.00 411.50 31.00 106.50 5355.66
1930 0.50 60.00 208.50 514.50 575.00 781.50 1160.00 1137.50 721.00 336.50 49.00 0.00 a 5544.00
1931 0.00 5.50 152.50 351.50 692.00 853.50 1171.50 1098.00 708.50 433.50 94.00 2.50 5563.00
1932 0.50 2.50 136.50 378.50 617.00 856.50 1029.00 969.00 744.00 346.00 53.50 8.00 5141.00
1933 0.00 0.00 103.50 284.00 457.50 897.50 1097.00 963.50 592.50 443.00 43.50 78.00 4960.00
1934 40.00 75.50 293.50 525.00 767.50 802.76 a 1121.00 1037.00 596.00 384.50 161.00 5.50 5809.26
1935 3.50 15.00 86.50 312.00 559.50 790.00 1007.50 950.00 718.00 362.00 7.50 3.00 4814.50
1936 1.50 7.50 71.50 436.50 682.00 845.50 1083.50 1032.00 625.00 407.00 3.00 13.50 5208.50
1937 0.00 1.50 139.00 281.00 632.00 736.50 1114.00 945.00 696.00 409.50 119.00 32.00 5105.50
1938 3.00 51.50 111.50 359.50 554.50 832.50 1052.00 948.00 776.00 374.50 28.50 3.00 5094.50
1939 3.00 0.50 207.50 420.00 722.00 718.00 1070.00 1019.00 664.50 354.00 17.50 68.00 5264.00
1940 6.50 68.00 184.50 354.00 668.50 896.90 a 1069.50 1004.50 690.50 385.00 41.00 19.00 5387.90
1941 5.68 a 0.00 z 194.00 325.50 571.50 680.00 1023.00 931.50 560.50 343.50 105.00 44.50 4784.68
1942 0.00 5.50 62.00 353.50 452.00 636.00 1015.00 918.50 625.50 354.50 64.50 10.00 4497.00
1943 9.50 9.00 102.00 425.00 438.00 615.00 927.00 853.00 676.50 353.50 36.00 8.00 4452.50
1944 0.00 5.50 49.00 291.50 532.00 609.00 877.50 825.00 570.50 372.50 52.50 0.00 4185.00
1945 1.00 43.00 85.00 246.50 504.50 607.50 909.00 603.00 j 547.50 417.00 103.00 32.50 3496.50
1946 5.00 17.00 213.00 385.50 581.50 758.50 1067.00 991.00 578.00 224.00 37.00 41.50 4899.00
1947 2.00 45.00 211.00 339.00 732.00 658.50 1084.00 985.50 648.00 428.00 30.50 3.00 5166.50
1948 20.00 31.00 60.00 267.50 527.00 862.00 945.00 766.00 f 634.80 e 330.67 a 39.83 a 1.50 3719.29
1949 0.00 36.00 131.50 447.32 b 679.50 804.00 1030.00 1004.00 741.50 248.00 b 80.00 c 0.55 c 5202.38
1950 0.00 c 28.56 c 86.69 d 300.60 e 373.00 f 756.43 b 1002.50 1018.00 692.00 470.00 122.14 b 3.00 4479.92
1951 7.23 a 13.00 47.00 375.54 b 582.50 707.00 1094.50 979.50 693.50 285.20 a 32.50 7.20 c 4824.67
1952 0.00 b 4.83 e 72.85 a 427.50 b 610.00 757.50 1019.00 1014.00 750.00 458.50 17.00 4.50 5135.68
1953 109.00 30.50 141.00 259.00 408.00 597.50 1038.50 957.00 765.00 390.08 a 154.50 8.50 4858.58
1954 47.02 a 65.00 101.50 374.00 666.00 653.00 1072.50 869.00 641.50 288.00 104.50 13.00 4895.02
1955 0.00 0.00 57.00 204.00 469.00 836.00 941.00 1017.50 652.00 357.00 47.00 42.00 4622.50
1956 20.50 26.50 169.50 369.00 623.50 745.50 1055.50 900.00 626.50 267.00 28.50 16.00 4848.00
1957 0.00 27.00 135.50 307.50 574.00 782.00 995.50 923.50 716.50 271.50 32.00 22.50 4787.50
1958 5.00 78.50 86.50 275.50 782.50 831.50 1068.00 1077.00 622.50 391.00 101.00 7.50 5326.50
1959 36.50 29.50 94.50 394.00 445.50 836.50 1061.50 921.50 565.00 307.93 a 13.50 0.00 4705.93
1960 0.00 1.50 155.50 338.50 504.00 884.50 1174.50 868.00 703.00 307.50 67.50 1.00 5005.50
1961 0.00 66.00 172.00 304.50 607.60 a 963.00 1126.00 1106.18 a 528.50 278.00 24.00 10.50 5186.28
1962 8.00 8.50 91.00 444.50 538.00 799.50 977.50 918.00 677.50 312.00 85.00 6.00 4865.50
1963 0.00 68.00 164.00 214.14 a 611.50 673.50 898.48 a 922.50 734.00 416.00 62.50 0.00 4764.62
1964 0.00 0.00 44.50 0.00 z 443.00 650.00 998.00 824.50 515.00 275.50 38.00 57.00 3845.50
1965 12.40 a 13.00 41.50 362.50 496.00 0.00 z 963.50 895.00 480.00 375.50 116.50 1.50 3757.40
1966 25.00 8.00 142.50 289.00 638.00 708.00 972.88 a 969.78 a 750.50 228.00 98.50 10.00 4840.17
1967 20.50 20.00 114.50 152.00 546.50 778.00 1122.50 1075.50 814.50 237.00 81.00 12.50 4974.50
1968 0.00 66.50 165.50 207.50 532.50 776.50 0.00 z 824.50 593.00 228.50 32.50 21.00 3448.00
1969 3.50 0.00 70.00 339.00 704.00 814.50 1018.50 968.00 675.00 188.00 63.50 13.00 4857.00
1970 51.50 27.50 77.00 149.50 551.50 885.50 1068.50 1047.50 499.00 217.50 57.00 5.50 4637.50
1971 7.00 23.00 81.50 292.00 642.00 715.00 1052.50 1150.00 518.00 275.50 26.00 6.00 4788.50
1972 17.50 39.00 161.50 266.50 626.00 822.50 983.00 1014.50 535.00 396.50 71.50 4.50 4938.00
1973 0.50 22.50 125.00 278.00 620.50 781.50 1049.00 962.00 628.00 306.50 98.50 11.00 4883.00
1974 31.00 8.00 122.00 247.00 469.00 849.50 992.00 951.00 694.00 301.50 65.50 0.50 4731.00
1975 0.00 14.50 67.50 138.00 488.50 717.50 1147.00 851.00 662.50 313.50 44.00 15.00 4459.00
1976 0.00 21.50 44.50 245.00 620.50 666.00 1020.50 803.00 639.50 258.00 57.50 0.00 a 4376.00
1977 0.00 4.50 62.00 424.00 416.00 934.50 989.00 1009.50 611.00 0.00 z 46.55 a 40.00 4537.05
1978 5.50 16.00 230.00 269.00 467.50 697.00 978.00 928.00 604.00 331.50 29.50 2.50 4558.50
1979 0.00 5.50 135.50 264.00 610.00 781.00 1001.00 937.00 713.00 391.00 16.50 0.00 4854.50
1980 15.50 51.00 66.50 385.50 531.50 646.50 984.50 844.50 612.00 299.50 81.50 21.00 4539.50
1981 3.50 28.50 99.00 310.00 522.50 685.50 951.00 1041.50 661.50 214.50 84.50 19.50 4621.50
1982 0.00 27.00 87.00 187.50 464.00 755.00 913.00 970.50 562.00 281.50 6.50 4.50 4258.50
1983 2.50 63.50 146.50 207.00 545.00 712.00 847.00 987.50 572.50 325.50 118.00 0.50 4527.50
1984 0.00 0.00 z 89.50 224.50 456.50 657.50 0.00 z 1023.50 544.50 222.00 47.00 0.00 z 3265.00
1985 0.00 0.00 38.50 392.50 607.50 777.50 1108.50 832.00 442.50 188.00 32.50 0.00 4419.50
1986 0.00 73.50 245.00 251.50 568.50 935.00 888.00 1051.00 509.00 310.00 53.00 0.00 4884.50
1987 0.00 10.50 151.00 465.50 709.00 825.50 935.50 866.50 690.00 358.50 85.00 34.50 5131.50
1988 0.50 15.00 121.50 385.00 568.00 888.50 1063.00 943.50 598.50 555.50 92.00 0.00 5231.00
1989 0.00 0.00 119.00 386.00 535.00 848.50 1050.50 900.00 627.50 304.00 37.50 0.00 4808.00
1990 11.00 8.00 166.50 467.50 514.50 766.00 1038.50 984.00 838.50 264.50 38.00 0.00 5097.00
1991 0.00 26.00 102.50 263.50 460.00 660.50 1029.00 1033.50 691.00 348.00 13.50 0.00 4627.50
1992 1.50 46.00 229.00 415.50 727.00 870.50 907.50 969.50 595.50 362.50 19.00 0.00 5143.50
1993 0.00 0.00 95.50 227.50 681.50 660.00 784.50 824.50 650.50 370.00 19.50 20.50 4334.00
1994 0.00 16.00 214.50 397.00 635.50 802.50 1113.50 1080.50 777.50 306.00 13.50 0.00 5356.50
1995 18.50 89.00 141.00 272.50 554.00 717.50 1001.00 885.00 748.50 251.50 99.50 34.00 4812.00
1996 0.00 52.00 182.00 330.50 507.00 793.50 1083.50 970.00 599.00 350.00 0.00 z 31.00 4898.50
1997 24.00 16.00 192.50 285.00 684.50 781.50 976.50 1034.50 772.50 317.50 58.50 0.00 5143.00
1998 18.00 37.50 154.00 275.50 536.50 716.50 0.00 z 1084.00 853.50 336.00 0.00 z 35.00 4046.50
1999 8.50 23.00 133.00 249.50 519.00 792.50 993.00 1038.50 653.50 357.50 116.00 8.00 4892.00
2000 5.00 49.00 114.50 433.00 658.00 819.00 1060.50 1066.00 652.50 340.00 12.50 0.50 5210.50
2001 0.00 3.00 207.50 283.50 693.00 803.50 1039.00 1102.00 771.00 318.00 127.00 0.00 5347.50
2002 1.00 9.00 115.50 337.50 573.00 858.00 1161.50 923.50 743.50 308.50 66.00 46.00 5143.00
2003 11.50 39.50 238.50 320.00 605.00 901.50 1204.50 1076.00 729.50 499.00 37.50 23.00 5685.50
2004 0.00 8.00 257.50 387.50 570.00 821.50 1100.00 1038.00 664.00 391.00 26.00 19.50 5283.00
2005 0.00 3.00 163.50 284.50 572.00 689.00 1062.00 1046.50 625.50 368.50 37.00 0.00 4851.50
2006 0.00 z 19.00 109.50 344.50 645.50 882.50 1212.00 976.00 691.00 329.50 123.00 17.00 5349.50
2007 0.00 33.50 242.00 320.50 688.50 858.50 1215.50 991.00 700.50 300.50 57.50 19.00 5427.00
2008 3.50 12.00 65.50 192.00 624.50 783.00 1084.50 1027.50 667.00 338.00 87.50 14.00 4899.00
2009 1.50 23.50 99.00 300.50 641.50 811.50 1085.00 1015.00 817.00 214.50 56.00 0.00 5065.00
2010 10.00 17.50 130.00 256.50 431.50 748.50 1012.00 962.00 718.00 475.50 102.00 0.00 4863.50
2011 0.00 a 19.00 89.50 161.00 454.00 694.50 1000.00 1092.00 815.50 391.00 33.00 6.00 4755.50
2012 7.00 14.50 176.00 385.00 558.50 343.00 o 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1141.00
Period of Record Statistics
MEAN 7.73 25.53 130.96 320.45 581.39 775.27 1037.88 975.74 657.46 336.65 61.40 14.27 4949.64
S.D. 15.44 23.14 57.71 83.22 89.82 85.05 82.00 81.55 86.65 71.50 38.75 18.95 329.74
SKEW 3.91 0.90 0.48 0.10 0.14 -0.14 -0.33 0.00 -0.11 0.20 0.82 2.28 0.03
MAX 109.00 89.00 293.50 525.00 782.50 963.00 1215.50 1181.50 853.50 555.50 188.00 106.50 5809.26
MIN 0.00 0.00 38.50 138.00 408.00 597.50 784.50 803.00 442.50 188.00 3.00 0.00 4185.00
NO YRS 89 88 90 89 89 88 86 87 89 88 86 89 76