CROW AGENCY, MONTANA

Monthly Total Growing Degree Days

(242112)

Base Temperature = 50 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 89.50 157.50 437.50 602.50 629.50 264.50 11.50 0.00 0.00 2192.50
1899 0.00 0.00 0.00 27.00 154.00 369.50 596.00 506.50 311.00 30.50 0.00 c 2.50 1997.00
1900 0.00 0.00 8.50 88.50 326.50 602.50 620.00 545.00 246.00 44.00 1.00 0.00 a 2482.00
1901 0.00 b 0.00 7.75 a 77.59 a 391.12 a 313.00 754.50 649.50 174.50 68.50 0.00 b 0.00 2436.45
1902 0.00 o 0.00 0.00 34.00 293.00 383.50 587.00 533.00 208.00 30.00 0.00 b 0.00 2068.50
1903 0.00 0.00 2.00 40.34 a 170.50 497.50 603.00 586.00 220.00 46.50 14.48 a 0.00 2180.33
1904 0.00 0.00 a 0.00 71.50 200.50 399.50 609.00 574.50 297.00 63.50 0.00 0.00 2215.50
1905 0.00 0.00 0.50 44.00 112.50 348.50 602.00 656.00 354.00 74.00 0.00 0.00 2191.50
1906 0.00 0.00 0.00 85.00 205.50 367.00 606.00 555.00 350.40 e 96.00 3.50 0.00 2268.40
1907 0.00 0.00 9.82 a 20.00 116.00 324.00 571.50 480.50 224.00 61.50 0.00 0.00 1807.32
1908 0.00 k 0.00 j 2.50 110.50 147.00 335.50 677.50 491.00 354.50 50.00 5.00 0.00 2173.50
1909 0.00 0.00 0.00 3.50 137.00 455.50 658.50 667.00 287.00 46.00 7.00 0.00 2261.50
1910 0.00 0.00 39.00 41.00 u 136.00 l 375.50 i 704.50 434.50 264.00 99.00 0.00 0.00 1541.00
1911 0.00 0.00 10.50 29.50 61.00 w 514.00 532.50 478.36 b 223.50 f 26.50 0.00 0.00 1591.36
1912 0.00 0.00 0.00 a 40.71 b 196.00 468.50 530.00 470.68 a 122.07 a 11.37 a 2.00 0.00 1841.33
1913 0.00 0.00 0.00 102.50 240.77 a 514.00 590.00 292.00 q 306.00 65.88 c 0.00 e 0.00 1819.14
1914 0.00 0.00 e 1.00 66.50 252.50 437.00 722.50 540.00 294.31 a 46.50 i 3.10 a 0.00 2316.91
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 542.50 k 548.00 295.50 28.00 f 7.50 0.00 851.00
1918 0.00 0.00 9.00 44.00 172.50 692.00 691.54 e 559.00 259.00 162.00 0.00 0.00 2589.04
1919 0.00 0.00 0.00 88.00 327.50 631.00 724.50 581.50 357.50 29.50 0.00 0.00 2739.50
1920 0.00 0.00 1.00 0.00 225.00 781.50 894.00 640.50 338.79 a 103.50 0.00 0.00 2984.29
1921 0.00 4.00 11.50 19.00 73.00 635.50 747.62 a 676.00 287.00 135.50 6.00 0.00 2595.12
1922 0.00 0.00 0.00 60.00 133.50 563.00 645.50 702.50 392.50 100.50 4.00 0.00 2601.50
1923 0.00 0.00 0.00 10.50 118.00 495.50 829.50 531.00 270.50 39.50 0.00 0.00 2294.50
1924 0.00 0.00 0.00 52.50 120.00 440.50 603.50 539.00 226.50 96.50 0.00 1.50 2080.00
1925 0.00 0.00 20.50 87.00 170.00 482.00 664.00 485.00 383.40 e 12.00 0.00 0.00 2303.90
1926 0.00 0.00 d 2.14 b 131.50 342.00 459.00 710.50 592.50 171.50 95.50 0.00 0.00 2504.64
1927 0.00 0.00 0.50 43.50 55.50 263.00 469.50 335.00 79.00 19.78 b 1.50 0.00 1267.28
1928 0.00 a 0.00 3.50 9.00 288.00 267.00 528.50 441.50 220.00 f 76.00 0.00 0.00 f 1613.50
1929 0.00 0.00 0.00 12.22 c 283.43 c 415.00 774.47 b 696.00 190.50 57.00 0.00 0.00 2428.62
1930 0.00 0.00 0.00 128.79 a 219.50 520.50 767.00 717.65 a 248.50 26.50 0.00 0.00 2628.44
1931 0.00 0.00 g 0.00 30.50 285.89 d 637.00 719.00 653.00 325.00 32.72 d 2.50 0.00 2685.61
1932 0.00 1.00 1.50 86.00 280.50 322.50 q 730.10 b 652.50 235.50 38.00 0.00 0.00 2025.10
1933 0.00 0.00 0.00 29.42 d 189.62 a 386.00 m 826.00 601.50 310.50 86.00 0.00 0.00 2043.04
1934 0.00 0.00 5.00 105.00 474.00 529.00 792.00 672.50 279.50 108.50 10.50 0.00 2976.00
1935 0.00 f 0.00 3.50 46.50 132.00 385.00 808.50 588.50 322.00 53.00 0.00 0.00 2339.00
1936 0.00 0.00 0.00 67.00 385.00 603.50 924.00 690.86 c 288.50 90.00 0.00 0.00 3048.86
1937 0.00 0.00 0.00 71.50 f 368.50 433.50 795.00 661.00 395.00 105.50 0.00 0.00 2758.50
1938 0.00 10.50 0.00 40.50 121.50 461.00 641.50 556.50 428.50 114.00 0.00 0.00 2374.00
1939 9.00 0.00 30.50 153.00 268.50 f 344.00 779.00 577.50 298.50 59.00 4.00 2.50 2257.00
1940 0.00 0.00 7.50 25.50 281.50 514.50 757.50 698.00 458.00 121.50 0.00 0.00 2864.00
1941 0.00 11.50 2.00 24.00 304.00 476.50 696.00 649.00 184.00 20.00 0.00 3.50 2370.50
1942 0.00 0.00 0.00 83.00 141.50 312.50 655.50 566.50 270.50 118.50 0.00 0.00 2148.00
1943 0.00 0.00 16.00 80.50 142.50 344.50 626.00 605.00 257.00 110.00 0.00 0.00 2181.50
1944 0.00 0.00 0.00 19.50 259.00 267.50 513.05 a 484.50 230.00 40.30 a 0.00 0.00 1813.85
1945 0.00 a 0.00 4.50 27.50 153.00 264.50 668.57 a 608.00 274.00 112.00 4.00 0.00 2116.07
1946 0.00 0.00 7.50 122.50 136.50 405.50 713.00 561.50 255.00 34.50 0.00 0.00 2236.00
1947 0.00 0.00 0.00 52.50 209.00 300.00 713.50 642.00 269.00 127.50 0.00 0.00 2313.50
1948 0.00 0.00 0.00 89.00 290.50 492.00 484.00 h 637.50 349.14 a 78.50 0.00 0.00 a 1936.64
1949 0.00 0.00 0.00 101.00 274.87 a 438.00 652.55 a 658.15 e 196.50 h 44.78 d 20.50 0.00 2189.85
1950 0.00 0.00 2.50 41.50 168.00 365.50 554.90 a 484.93 c 250.18 b 89.50 5.00 0.00 b 1962.01
1951 0.00 b 2.00 0.00 33.33 c 241.28 a 261.11 c 655.02 d 571.84 c 157.24 a 65.50 0.00 b 0.00 f 1987.33
1952 0.00 b 0.00 0.00 a 135.00 b 217.57 d 523.93 b 622.67 b 623.21 b 361.73 d 64.67 b 0.00 a 0.00 b 2548.78
1953 0.53 b 1.12 c 0.00 d 30.56 c 134.69 b 411.96 b 715.00 633.00 304.44 c 120.12 c 6.72 a 0.00 f 2358.16
1954 0.00 0.00 c 0.00 20.69 a 136.50 f 331.00 734.70 a 589.00 d 301.55 a 51.15 a 0.00 0.00 2028.09
1955 0.00 a 0.00 0.00 c 22.00 185.48 a 364.00 665.98 a 654.74 b 271.50 102.62 b 3.50 0.00 2269.83
1956 0.00 0.00 15.00 10.00 260.50 570.50 636.02 a 532.54 c 316.50 110.00 0.50 2.00 2453.55
1957 0.00 a 0.00 0.00 b 25.71 b 233.57 b 377.50 726.00 651.50 273.50 56.32 a 0.00 1.00 2345.10
1958 0.00 0.00 0.00 34.00 386.00 348.00 513.00 664.43 a 338.50 115.45 b 0.00 0.00 2399.38
1959 0.00 0.00 2.00 62.59 a 95.00 534.00 663.00 614.50 285.00 a 21.00 r 1.00 0.00 2257.09
1960 0.00 0.00 22.22 a 33.89 c 214.50 454.50 763.50 510.00 311.38 a 73.22 b 3.50 0.00 2386.71
1961 0.00 0.00 5.50 18.50 227.50 622.00 727.98 a 750.09 c 152.50 66.65 a 0.00 0.00 a 2570.72
1962 0.00 a 0.00 c 1.03 a 109.14 a 174.24 b 421.50 565.00 528.55 a 229.14 a 91.45 a 0.00 a 0.00 2120.05
1963 0.00 0.00 9.50 43.50 207.38 b 414.50 689.48 b 531.50 g 428.08 d 240.25 e 0.00 l 0.00 2032.69
1964 0.00 0.00 1.60 b 41.00 216.00 369.83 a 747.00 506.85 a 200.50 67.50 0.00 z 0.00 2150.28
1965 0.00 0.00 0.00 37.00 144.00 390.00 668.50 571.50 89.00 126.50 7.50 0.00 2034.00
1966 0.00 0.00 11.00 19.50 320.33 a 428.50 836.50 600.00 467.50 64.50 0.00 0.00 2747.83
1967 0.00 0.00 7.50 11.50 199.00 353.00 687.17 a 667.50 401.00 95.00 1.50 0.00 2423.17
1968 0.00 0.00 5.50 30.50 132.78 a 363.50 633.00 541.00 316.50 66.50 0.00 0.00 c 2089.28
1969 0.00 0.00 0.00 a 95.00 243.00 328.00 623.21 b 687.00 380.00 11.00 h 4.00 0.00 2360.21
1970 0.00 0.00 0.00 8.50 236.00 494.00 691.50 703.50 275.50 49.50 0.00 0.00 2458.50
1971 0.00 0.00 3.50 29.00 196.50 476.50 587.93 b 817.88 a 260.50 85.50 0.00 0.00 a 2457.31
1972 0.00 0.00 26.50 23.50 216.00 524.00 545.00 667.00 237.50 50.24 b 0.00 0.00 2289.74
1973 0.00 0.00 0.00 5.00 176.00 478.00 633.50 668.50 258.50 117.00 0.00 0.00 e 2336.50
1974 0.00 0.00 11.00 102.93 a 127.62 a 506.00 758.97 b 483.00 231.00 84.06 e 0.00 0.00 2304.57
1975 0.00 0.00 0.00 a 20.50 140.50 353.33 c 734.50 551.05 b 275.50 68.50 l 6.00 0.00 c 2081.39
1976 0.00 0.00 a 1.50 57.86 b 0.00 z 381.11 c 702.87 e 0.00 z 362.14 b 47.00 h 0.00 f 0.00 1505.48
1977 0.00 e 0.00 d 2.00 g 77.50 h 279.00 d 583.20 e 540.50 h 524.00 293.08 d 63.11 c 2.78 c 0.00 e 1745.16
1978 0.00 f 0.00 f 32.11 c 46.00 h 143.00 f 349.50 f 598.54 e 386.50 j 276.50 f 67.50 f 12.00 f 0.00 k 630.65
1979 0.00 e 0.00 a 0.00 b 34.20 e 147.50 h 457.22 c 687.37 e 546.00 f 435.58 d 78.50 k 0.00 g 0.50 h 1614.36
1980 0.00 b 0.00 e 0.00 k 115.00 j 118.50 n 332.00 i 650.40 e 355.50 f 96.00 k 0.00 z 0.00 z 0.00 z 650.40
1981 0.00 z 0.00 h 0.00 i 50.00 j 113.50 j 348.00 e 644.69 d 516.00 f 392.40 e 22.50 h 0.00 h 0.00 i 1385.09
1982 0.00 0.00 0.00 39.00 153.50 334.00 599.00 681.50 282.00 55.00 0.00 0.00 j 2144.00
1983 0.00 r 0.00 b 3.21 b 23.50 i 168.36 b 232.50 n 714.55 a 839.07 a 324.83 a 35.50 k 6.00 i 0.00 a 2050.01
1984 0.00 m 0.00 a 0.00 o 37.22 c 221.00 425.00 705.77 a 471.00 l 190.00 k 104.76 b 2.14 b 0.00 r 1495.89
1985 0.00 b 0.00 a 0.00 105.52 a 352.22 b 408.00 732.93 c 399.50 i 161.00 f 48.71 c 5.56 c 0.00 k 1652.94
1986 0.00 2.00 35.50 48.75 b 209.00 578.00 625.50 663.40 a 206.00 22.00 0.00 c 0.00 2390.15
1987 0.00 a 0.00 10.85 a 153.50 276.00 f 518.50 696.47 a 505.82 a 297.50 53.50 2.68 b 0.00 2238.81
1988 0.00 0.00 10.00 38.00 n 316.50 734.50 746.50 611.00 246.50 83.00 7.00 0.00 2755.00
1989 0.00 0.00 0.00 74.00 180.50 444.00 826.50 0.00 z 36.50 m 0.00 z 0.00 v 0.00 t 1525.00
1990 0.00 u 0.00 k 0.00 m 22.00 q 60.50 o 275.50 k 329.00 o 295.50 q 90.00 x 0.50 r 0.00 o 0.00 l 0.00
1991 0.00 p 0.00 n 0.00 r 18.50 146.00 353.50 307.00 p 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 518.00
Period of Record Statistics
MEAN 0.12 0.38 5.06 53.81 214.72 443.46 677.45 596.30 285.63 73.80 1.93 0.16 2340.92
S.D. 1.00 1.76 8.61 37.89 82.52 110.27 88.07 86.97 77.53 38.85 3.53 0.62 316.96
SKEW 8.79 5.49 2.28 0.81 0.67 0.66 0.18 -0.02 -0.08 1.04 2.77 3.89 -0.38
MAX 9.00 11.50 39.00 153.50 474.00 781.50 924.00 839.07 467.50 240.25 20.50 3.50 3048.86
MIN 0.00 0.00 0.00 0.00 55.50 261.11 469.50 335.00 79.00 11.37 0.00 0.00 1267.28
NO YRS 81 84 84 82 80 84 87 80 82 78 81 79 52