CROW AGENCY, MONTANA

Monthly Total Growing Degree Days

(242112)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 199107
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
1898 0.00 z 0.00 z 0.00 z 326.00 429.50 737.50 912.50 939.50 561.50 146.50 32.00 20.00 4105.00
1899 0.00 0.00 3.00 185.50 423.00 669.50 906.00 816.50 610.50 182.00 35.00 c 22.50 3853.50
1900 0.00 0.00 89.00 315.50 633.00 902.50 930.00 855.00 511.00 256.50 33.50 26.35 a 4552.35
1901 1.07 b 16.00 76.98 a 274.66 a 701.12 a 609.50 1064.50 959.50 445.00 354.00 52.50 b 6.50 4561.32
1902 3.50 o 23.00 17.50 172.00 597.00 682.50 897.00 843.00 486.00 257.50 20.36 b 2.00 3997.86
1903 6.00 0.50 43.50 220.86 a 456.00 797.50 913.00 896.00 474.00 285.50 58.97 a 18.00 4169.83
1904 1.00 0.00 a 9.00 276.00 487.00 699.50 919.00 884.50 592.50 310.50 60.00 5.00 4244.00
1905 1.50 25.00 132.00 203.00 375.00 648.00 912.00 966.00 651.50 207.50 58.00 0.00 4179.50
1906 5.50 6.50 55.00 314.50 477.00 667.00 916.00 865.00 650.40 e 308.00 62.00 0.00 4326.90
1907 0.00 0.50 95.07 a 146.50 335.00 624.00 881.50 790.50 511.00 317.00 46.00 3.50 3750.57
1908 0.00 k 4.50 j 53.50 309.00 442.00 635.50 987.50 801.00 620.00 186.00 92.00 1.50 4128.00
1909 0.00 0.50 41.50 87.50 388.50 755.50 968.50 977.00 584.00 222.00 63.50 0.00 4088.50
1910 0.00 0.00 209.50 120.50 u 312.50 l 585.50 i 1014.50 742.00 554.00 332.00 31.00 0.00 2883.00
1911 0.00 0.00 92.50 177.50 126.00 w 814.00 842.50 788.36 b 462.50 f 188.50 0.00 0.00 2903.36
1912 0.00 0.00 6.20 a 232.50 b 463.50 768.50 840.00 780.68 a 342.41 a 167.40 a 45.50 0.50 3647.20
1913 0.00 7.00 11.50 315.00 505.82 a 814.00 900.00 432.00 q 574.50 210.91 c 43.80 e 0.00 3382.53
1914 1.00 0.00 e 74.00 286.00 520.50 737.00 1032.50 850.00 587.07 a 216.00 i 103.97 a 0.00 4192.03
1915 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
1916 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
1917 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 742.50 k 858.00 589.00 131.50 f 120.00 17.00 1584.00
1918 6.00 5.00 93.00 239.00 480.50 992.00 1001.54 e 869.00 559.00 443.50 35.00 20.00 4743.54
1919 13.00 0.00 15.00 265.50 618.50 926.00 1034.50 891.50 657.50 138.50 2.50 0.00 4562.50
1920 0.00 2.50 18.50 36.00 523.50 1079.50 1204.00 950.50 636.72 a 274.00 26.50 0.00 4751.72
1921 5.50 74.50 139.50 130.50 303.00 935.50 1057.62 a 986.00 586.50 441.50 73.50 16.00 4749.62
1922 0.00 0.00 26.50 264.00 375.50 863.00 955.50 1012.50 692.50 387.50 85.00 0.00 4662.00
1923 8.50 2.00 25.50 152.00 410.00 795.50 1139.50 841.00 570.50 240.00 29.00 0.50 4214.00
1924 0.50 3.00 0.00 254.00 429.50 740.50 913.50 849.00 520.00 396.00 19.00 29.50 4154.50
1925 1.00 10.50 114.00 358.50 421.00 782.00 974.00 795.00 661.20 e 89.50 3.50 30.50 4240.70
1926 0.00 10.50 d 84.45 b 330.00 649.50 759.00 1020.50 902.50 430.50 360.50 75.50 3.50 4626.45
1927 0.00 0.00 32.00 139.00 265.50 561.50 779.50 645.00 330.50 231.97 b 15.50 0.00 3000.47
1928 0.00 a 0.00 75.00 92.50 585.00 564.00 838.50 751.50 459.50 f 240.50 10.00 1.50 f 3157.00
1929 0.00 0.00 11.50 150.56 c 544.71 c 715.00 1084.47 b 1006.00 466.50 281.50 6.50 0.00 4266.74
1930 0.00 44.00 19.50 409.66 a 505.00 820.50 1077.00 1027.65 a 540.00 180.50 41.50 0.00 4665.31
1931 19.50 0.00 g 22.50 219.00 553.98 d 937.00 1029.00 963.00 619.00 237.09 d 74.50 0.00 4674.57
1932 0.00 32.00 33.00 282.00 582.00 452.50 q 1040.10 b 962.50 527.00 158.50 26.50 5.00 3648.60
1933 0.00 0.00 43.50 145.38 d 462.93 a 556.00 m 1136.00 911.50 601.50 322.00 71.00 10.00 3703.82
1934 11.50 50.50 108.50 320.50 782.50 829.00 1102.00 982.50 530.00 360.50 63.00 0.00 5140.50
1935 0.00 f 24.50 63.00 205.50 412.50 685.00 1118.50 898.50 622.00 248.00 26.50 0.00 4304.00
1936 3.00 0.00 12.00 249.00 694.50 902.50 1234.00 1000.86 c 578.50 295.00 31.50 1.00 5001.86
1937 0.00 1.00 12.00 255.50 f 678.50 730.50 1105.00 971.00 694.50 387.00 53.50 0.00 4633.00
1938 0.00 37.00 50.00 229.00 397.00 761.00 951.50 866.50 728.50 378.50 4.00 15.00 4418.00
1939 85.00 3.50 124.50 368.50 518.50 f 644.00 1089.00 887.50 586.00 302.50 77.00 66.50 4234.00
1940 0.00 1.50 83.50 182.50 591.50 814.50 1067.50 1008.00 758.00 399.50 6.50 10.50 4923.50
1941 0.00 35.50 73.50 173.00 612.50 776.50 1006.00 959.00 445.50 195.00 35.00 16.00 4327.50
1942 0.00 0.00 19.00 285.00 385.00 612.50 965.50 876.50 538.50 340.00 28.00 9.00 4059.00
1943 0.00 19.00 61.50 333.00 365.50 622.50 936.00 915.00 544.50 321.00 12.50 6.00 4136.50
1944 8.50 0.00 10.00 170.50 539.00 557.00 823.05 a 794.50 517.00 274.87 a 32.50 0.00 3726.92
1945 0.00 a 3.50 99.00 160.50 421.00 563.50 978.57 a 918.00 536.00 347.50 42.50 0.00 4070.07
1946 0.00 6.50 111.00 361.50 419.00 705.50 1023.00 871.50 544.00 151.50 2.00 0.50 4196.00
1947 2.50 10.50 33.00 202.50 513.50 600.00 1023.50 952.00 563.50 384.50 19.50 0.00 4305.00
1948 4.50 6.50 13.50 284.50 568.00 792.00 714.00 h 947.50 647.07 a 299.50 28.00 3.10 a 3594.17
1949 0.00 1.50 4.00 338.00 560.58 a 738.00 962.55 a 968.15 e 409.50 h 179.11 d 155.50 8.00 3915.40
1950 0.00 11.00 32.00 182.50 381.00 655.50 864.90 a 794.93 c 495.54 b 330.50 34.50 4.28 b 3786.64
1951 0.00 b 12.00 11.00 155.00 c 534.75 a 536.67 c 965.02 d 881.84 c 431.38 a 229.00 23.57 b 2.50 f 3780.23
1952 0.00 b 0.00 16.02 a 350.89 b 521.26 d 823.93 b 932.67 b 933.21 b 660.58 d 290.76 b 23.28 a 0.00 b 4552.59
1953 48.10 b 33.60 c 71.19 d 119.44 c 376.28 b 711.96 b 1025.00 943.00 602.78 c 363.70 c 93.10 a 1.50 f 4388.15
1954 1.00 45.36 c 21.50 165.00 a 348.50 f 628.00 1044.70 a 899.00 d 579.83 a 220.10 a 102.50 2.00 3708.99
1955 0.00 a 2.50 8.86 c 179.50 485.67 a 664.00 975.98 a 964.74 b 532.00 341.53 b 38.00 6.50 4199.28
1956 0.00 3.50 90.50 121.50 535.00 870.50 946.02 a 842.54 c 615.00 335.00 48.50 34.00 4442.05
1957 0.00 a 17.00 47.03 b 141.43 b 525.93 b 677.50 1036.00 961.50 557.50 222.17 a 23.00 17.50 4226.56
1958 6.00 8.50 30.00 189.50 696.00 648.00 823.00 974.43 a 626.00 313.21 b 56.50 13.50 4384.64
1959 0.00 0.00 77.00 236.90 a 361.00 834.00 973.00 924.50 557.59 a 77.50 r 31.00 4.50 3999.48
1960 0.00 3.00 138.47 a 186.67 c 517.00 754.50 1073.50 820.00 601.55 a 301.98 b 33.50 0.00 4430.17
1961 0.00 39.50 103.50 144.50 506.00 922.00 1037.98 a 1060.09 c 394.50 218.55 a 4.00 2.07 a 4432.69
1962 5.17 a 11.20 c 32.03 a 316.03 a 476.76 b 720.50 875.00 838.55 a 508.97 a 361.15 a 71.90 a 16.00 4233.26
1963 1.50 19.00 105.00 184.50 506.16 b 714.50 999.48 b 771.50 g 728.08 d 507.92 e 24.00 l 0.00 3766.14
1964 0.00 0.50 36.34 b 219.50 515.00 669.83 a 1057.00 816.85 a 494.00 310.50 0.00 z 0.00 4119.52
1965 4.50 24.00 6.00 199.50 412.00 690.00 978.50 881.50 283.50 416.50 67.00 6.50 3969.50
1966 5.00 0.00 76.00 160.50 614.32 a 728.50 1146.50 910.00 764.50 280.50 6.50 5.00 4697.32
1967 5.00 20.00 68.00 173.50 433.00 650.50 997.17 a 977.50 700.50 329.50 42.00 0.00 4396.67
1968 0.00 6.00 126.00 159.00 398.35 a 663.50 943.00 851.00 614.00 302.50 21.00 0.00 c 4084.35
1969 0.00 0.00 23.25 a 338.00 539.00 624.50 933.21 b 997.00 680.00 74.50 h 59.00 1.00 4194.96
1970 0.00 0.00 7.00 85.50 528.50 794.00 1001.50 1013.50 536.00 194.00 33.00 0.00 4193.00
1971 0.00 0.00 54.50 203.50 495.50 776.50 897.93 b 1127.88 a 533.50 267.50 36.50 0.00 a 4393.31
1972 0.00 8.00 177.00 202.00 497.50 824.00 855.00 977.00 501.00 244.26 b 17.50 11.50 4314.76
1973 0.00 7.00 47.50 111.00 467.00 776.00 943.50 978.50 540.00 370.00 18.00 0.00 e 4258.50
1974 27.00 5.00 95.50 320.17 a 403.00 a 806.00 1068.97 b 793.00 520.00 341.00 e 26.00 3.50 4409.14
1975 7.50 0.00 14.98 a 125.50 415.00 653.33 c 1044.50 861.05 b 571.00 180.00 l 92.50 13.84 c 3799.21
1976 0.00 15.02 a 69.00 274.82 b 0.00 z 681.11 c 1012.87 e 0.00 z 660.54 b 164.00 h 46.00 f 5.00 2718.35
1977 0.00 e 14.00 d 55.50 g 271.00 h 583.26 d 883.20 e 770.50 h 834.00 593.08 d 310.00 c 41.67 c 3.58 e 3262.78
1978 0.00 f 0.00 f 96.32 c 227.00 h 374.50 f 589.50 f 908.54 e 596.50 j 499.50 f 258.50 f 63.50 f 0.00 k 1004.86
1979 0.00 e 0.00 a 16.57 b 192.60 e 344.50 h 753.89 c 997.37 e 796.00 f 735.58 d 259.50 k 3.50 g 30.00 h 2696.00
1980 6.41 b 6.65 e 13.00 k 254.00 j 288.00 n 542.00 i 960.40 e 605.50 f 276.00 k 0.00 z 0.00 z 0.00 z 973.46
1981 0.00 z 20.50 h 48.00 i 201.50 j 297.50 j 643.80 e 954.69 d 766.00 f 691.80 e 154.50 h 33.50 h 4.50 i 2290.29
1982 0.00 23.00 36.00 177.50 417.50 634.00 909.00 991.50 545.00 257.00 8.00 4.50 j 3998.50
1983 5.00 r 34.46 b 86.59 b 108.50 i 418.50 b 392.50 n 1024.55 a 1149.07 a 575.69 a 211.00 k 52.00 i 0.00 a 3288.85
1984 20.50 m 5.70 a 10.00 o 196.11 c 487.50 725.00 1015.77 a 661.00 l 332.00 k 261.36 b 23.04 b 0.00 r 2714.47
1985 0.00 b 0.00 a 23.50 309.83 a 654.21 b 708.00 1042.93 c 619.50 i 347.00 f 250.21 c 38.89 c 0.00 k 3027.57
1986 0.00 25.50 180.00 215.36 b 454.50 878.00 935.50 973.40 a 503.50 249.50 36.67 c 0.00 4451.92
1987 0.00 a 19.50 97.13 a 381.50 516.00 f 818.50 1006.47 a 815.82 a 593.50 237.50 64.29 b 7.00 4041.20
1988 0.00 34.00 72.50 147.50 n 611.00 1034.50 1056.50 921.00 545.00 336.00 73.00 9.00 4692.50
1989 0.00 0.00 32.00 235.50 474.50 744.00 1136.50 0.00 z 126.00 m 0.00 z 19.00 v 0.00 t 2622.50
1990 3.50 u 5.00 k 19.50 m 95.00 q 173.00 o 465.50 k 489.00 o 435.50 q 150.00 x 29.00 r 14.50 o 0.00 l 0.00
1991 0.00 p 0.00 n 15.00 r 130.00 389.50 653.50 457.00 p 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1173.00
Period of Record Statistics
MEAN 3.73 10.93 57.94 222.65 493.95 742.18 987.45 906.27 568.90 284.77 42.70 6.83 4311.01
S.D. 11.39 14.74 45.69 81.14 99.81 111.46 88.07 87.03 91.36 80.26 29.81 10.73 364.25
SKEW 5.45 1.77 0.95 0.24 0.42 0.61 0.18 -0.02 -0.42 0.09 1.08 2.81 -0.67
MAX 85.00 74.50 209.50 409.66 782.50 1079.50 1234.00 1149.07 764.50 507.92 155.50 66.50 5140.50
MIN 0.00 0.00 0.00 36.00 265.50 536.67 779.50 645.00 283.50 89.50 0.00 0.00 3000.47
NO YRS 81 84 84 82 80 84 87 80 82 78 81 79 52