GREEN RIVER, WYOMING

Monthly Total Growing Degree Days

(484065)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1897 0.00 z 0.00 z 0.00 z 161.00 561.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 129.00 0.50 851.50
1898 0.00 z 30.50 184.00 0.00 z 0.00 z 665.56 c 873.17 a 873.50 0.00 z 48.00 0.00 z 0.00 z 2674.72
1899 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
1900 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
1901 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
1902 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
1903 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
1904 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 0.60 e 0.60
1905 0.00 0.00 a 18.50 142.50 302.52 b 623.00 868.00 849.50 510.54 b 110.00 1.50 0.00 3426.05
1906 0.00 0.00 4.50 165.00 362.50 558.50 841.50 771.50 486.50 167.00 h 48.50 0.00 3238.50
1907 0.00 1.50 46.00 153.00 241.00 436.03 a 829.00 708.00 480.50 248.50 7.00 0.00 3150.53
1908 0.00 0.00 a 35.00 141.00 253.00 433.00 795.00 718.50 446.00 119.50 0.00 0.00 2941.00
1909 1.00 0.00 0.50 50.00 257.54 e 639.50 889.50 910.50 480.50 220.50 0.00 z 2.50 3452.04
1910 0.00 0.00 101.00 282.00 0.00 z 763.00 969.00 838.00 526.50 192.00 12.50 0.00 3684.00
1911 2.00 0.00 23.50 74.00 362.00 659.00 0.00 z 760.50 440.50 134.00 0.00 z 0.00 z 2455.50
1912 0.00 z 0.00 0.00 43.50 231.00 593.50 808.00 794.50 261.00 97.00 7.50 0.00 2836.00
1913 0.00 0.00 26.50 191.50 453.00 636.43 b 770.50 868.00 0.00 z 52.00 h 10.50 0.00 2956.43
1914 0.00 0.00 3.50 124.00 510.50 614.50 858.00 826.50 511.00 232.50 30.50 0.00 3711.00
1915 0.00 a 0.00 18.50 307.24 a 302.00 488.00 878.00 864.50 409.50 203.57 a 54.50 0.00 3525.81
1916 0.00 0.00 64.00 158.00 263.50 579.00 893.00 779.00 463.39 b 146.00 17.50 0.00 3363.39
1917 0.00 2.00 12.00 50.00 206.50 560.50 792.00 f 381.00 p 542.40 e 230.50 29.46 b 8.00 1641.36
1918 0.00 0.00 45.00 47.00 i 265.50 g 693.00 e 905.09 c 622.50 g 566.00 269.00 31.50 0.00 2509.59
1919 0.00 0.00 39.00 175.50 468.00 757.50 1030.00 844.48 b 608.00 42.50 8.65 d 0.00 3973.64
1920 5.00 0.00 a 15.50 29.50 365.00 624.00 0.00 z 0.00 z 472.50 147.00 10.50 0.00 1669.00
1921 2.58 a 3.50 42.50 81.50 455.50 713.00 386.00 q 500.00 k 393.00 325.50 d 40.00 0.00 2057.08
1922 0.00 0.00 10.00 76.50 394.73 a 732.00 872.50 902.50 591.00 220.50 5.50 1.00 3806.23
1923 0.00 0.00 a 2.07 a 96.00 409.50 708.62 a 974.00 858.18 a 495.00 120.00 2.07 a 0.00 3665.44
1924 0.00 0.50 0.50 111.50 399.50 667.00 889.00 824.00 480.50 158.50 24.50 0.00 3555.50
1925 0.00 0.50 42.00 211.50 510.00 608.00 966.00 846.00 509.00 155.00 4.50 0.50 3853.00
1926 0.00 0.50 22.00 265.00 460.00 707.50 891.00 850.50 423.50 228.50 32.00 2.50 3883.00
1927 0.00 1.50 12.50 142.50 314.00 701.00 899.00 814.00 473.50 185.00 61.00 0.00 3604.00
1928 2.00 0.00 28.50 107.00 477.00 518.00 882.50 758.50 526.00 188.58 a 5.50 0.00 3493.58
1929 0.00 0.00 10.00 80.50 332.50 612.00 950.00 925.00 462.00 193.00 4.50 5.00 3574.50
1930 0.00 6.00 15.00 276.50 376.50 642.50 968.50 873.50 563.00 165.50 5.50 0.00 3892.50
1931 0.00 a 0.00 13.50 178.00 390.50 777.00 1004.50 883.00 561.50 259.50 49.00 0.00 4116.50
1932 0.00 a 1.00 5.00 124.00 419.00 629.50 890.00 850.00 561.00 170.50 20.50 0.00 3670.50
1933 0.00 0.00 14.50 110.00 273.00 835.00 1006.50 797.50 549.00 290.50 10.50 2.50 3889.00
1934 0.00 a 8.50 76.00 313.00 661.50 664.00 942.50 898.48 a 440.50 264.00 31.50 0.00 4299.98
1935 0.00 6.00 20.00 111.50 278.50 678.50 980.00 899.00 586.00 253.00 5.00 0.00 3817.50
1936 0.00 2.50 5.00 232.00 559.00 797.00 1016.00 941.00 489.50 212.00 2.00 0.00 4256.00
1937 0.00 0.00 1.50 110.50 493.42 a 643.00 989.00 946.00 634.50 268.00 21.00 0.00 4106.92
1938 3.50 4.50 21.50 202.50 359.00 744.00 857.50 842.50 628.45 a 276.42 a 3.50 0.00 3943.36
1939 0.00 0.00 56.00 240.50 487.00 566.50 929.50 836.50 532.50 178.00 25.50 8.50 3860.50
1940 0.00 4.50 48.50 161.38 a 543.50 742.50 944.00 877.00 589.66 a 233.00 21.00 0.00 4165.03
1941 0.00 5.50 55.00 141.50 498.00 617.50 868.50 813.50 401.50 128.50 33.10 a 0.50 3563.10
1942 0.00 0.00 0.00 186.50 332.50 584.50 926.00 834.00 518.00 213.38 a 57.41 a 0.00 3652.30
1943 4.00 2.00 55.50 320.50 358.00 571.00 905.00 866.50 614.00 290.50 35.50 0.00 4022.50
1944 0.00 0.00 4.50 88.00 446.50 563.50 866.50 806.50 515.50 267.00 30.00 0.00 3588.00
1945 2.50 10.00 14.00 115.00 451.00 491.50 874.00 850.50 450.00 305.50 19.66 a 2.00 3585.66
1946 0.00 3.50 84.00 273.50 309.48 a 686.50 934.50 848.00 506.00 92.50 3.00 7.00 3747.98
1947 0.00 a 0.00 38.50 130.50 497.50 487.50 917.50 785.00 551.00 325.50 a 14.00 0.00 3747.00
1948 2.00 3.50 14.50 152.50 451.00 670.50 875.50 833.12 c 632.00 222.50 5.56 c 0.00 3862.68
1949 0.00 0.00 16.50 257.50 290.50 g 666.00 e 884.00 822.00 544.00 95.50 39.00 0.00 3324.50
1950 5.00 3.50 12.50 118.50 239.00 566.50 602.00 g 269.50 t 460.86 a 124.00 r 0.00 z 0.50 1406.36
1951 0.00 19.50 8.00 113.50 443.00 565.00 868.00 804.50 534.00 178.00 0.00 0.00 3533.50
1952 0.00 0.00 2.50 209.00 421.00 523.50 g 863.50 858.50 606.50 272.50 3.50 2.00 3239.00
1953 0.00 5.00 27.50 107.50 285.50 689.00 988.50 868.50 611.00 310.50 69.50 0.00 3962.50
1954 1.00 12.50 21.00 216.00 528.55 a 648.50 1021.34 c 799.00 558.00 232.50 37.50 0.00 4075.89
1955 0.00 0.00 4.50 110.00 395.50 606.50 908.00 908.00 521.50 203.50 13.50 12.00 3683.00
1956 0.00 0.00 34.00 136.00 482.50 706.00 867.50 515.50 i 518.00 311.00 19.04 d 0.00 d 3074.04
1957 0.00 15.50 29.50 104.50 381.00 664.82 b 870.00 867.00 455.00 217.50 1.50 0.00 a 3606.32
1958 0.00 z 0.00 3.00 58.00 527.00 700.50 829.50 466.50 n 542.00 229.00 43.50 0.00 2932.50
1959 0.00 0.00 10.50 150.50 310.00 733.00 901.50 781.50 436.00 154.00 10.50 0.00 3487.50
1960 0.00 0.00 41.50 164.50 344.00 673.50 932.00 770.00 526.50 187.00 11.50 0.00 3650.50
1961 0.00 4.50 15.00 102.00 414.50 767.00 892.00 863.00 344.00 144.00 0.00 0.00 3546.00
1962 0.00 16.24 c 5.00 198.50 361.00 612.50 818.00 749.00 497.59 a 221.00 16.00 0.00 3494.83
1963 0.00 11.00 27.00 78.50 445.00 584.00 875.00 873.00 582.00 308.00 5.00 0.00 3788.50
1964 0.00 0.00 2.50 56.00 370.00 525.00 930.50 749.50 438.00 174.63 a 0.00 6.00 3252.13
1965 3.00 0.00 3.00 131.50 304.00 563.50 849.50 718.50 310.00 234.50 36.00 0.00 3153.50
1966 0.00 0.00 24.50 105.50 427.00 585.00 952.00 798.00 585.00 133.00 15.52 a 0.50 3626.02
1967 0.00 0.00 20.50 66.50 279.00 528.50 870.50 826.00 520.50 199.00 20.50 0.00 3331.00
1968 0.00 0.50 18.50 43.00 282.50 588.00 834.50 652.00 392.00 159.00 5.00 0.00 2975.00
1969 1.00 0.00 a 6.50 133.50 454.67 a 457.00 847.50 888.50 538.00 70.00 7.50 0.00 3404.17
1970 0.00 0.00 0.00 35.00 348.50 576.00 819.00 835.00 272.50 g 15.00 j 4.00 0.00 a 2617.50
1971 2.00 0.00 20.50 77.00 304.00 349.00 p 847.00 442.00 o 416.40 e 179.50 0.00 0.00 1846.40
1972 0.00 0.00 61.00 98.50 372.50 645.00 809.00 829.00 438.00 223.00 0.00 z 0.00 3476.00
1973 0.00 0.00 0.00 51.50 365.00 599.00 799.50 808.00 423.00 223.50 16.50 0.00 3286.00
1974 0.00 0.00 30.50 121.50 407.50 802.00 899.00 808.00 503.04 b 214.00 3.00 0.00 3788.54
1975 2.50 0.00 13.00 43.00 329.00 463.50 888.50 651.00 426.00 158.00 5.50 5.00 2985.00
1976 0.00 0.00 c 0.00 k 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 o 0.00
1977 0.00 0.50 3.50 210.50 0.00 z 781.00 844.50 720.00 450.50 169.50 17.22 c 5.50 3202.72
1978 0.00 0.00 55.00 121.50 265.00 597.50 825.00 725.00 426.00 194.00 18.62 a 0.00 3227.62
1979 0.00 0.00 0.50 129.50 346.00 563.00 845.50 784.00 552.00 233.50 0.00 a 0.00 3454.00
1980 0.00 0.00 0.50 149.00 302.50 571.50 822.00 684.00 419.00 189.00 33.00 6.50 3177.00
1981 0.00 3.50 8.00 181.50 316.50 600.00 762.50 756.50 500.00 67.00 13.39 b 1.00 3209.89
1982 0.00 7.50 5.00 55.50 287.00 524.00 761.50 858.00 394.50 92.00 0.00 0.00 2985.00
1983 2.00 0.00 20.00 54.00 235.00 545.00 0.00 z 0.00 z 503.50 183.50 38.00 0.00 1581.00
1984 0.00 0.00 0.50 58.50 375.00 528.00 865.00 794.50 421.50 127.10 a 5.00 0.00 3175.10
1985 0.00 0.00 10.00 188.50 426.00 623.50 889.50 706.00 345.00 91.50 8.50 0.00 3288.50
1986 0.00 4.50 55.50 98.50 292.00 720.50 395.50 o 810.00 319.14 a 157.00 3.00 0.00 2460.14
1987 0.00 0.50 5.50 212.50 451.00 666.50 792.00 695.00 470.00 176.50 30.00 0.00 a 3499.50
1988 0.00 0.00 17.00 164.00 384.00 764.00 903.00 736.50 359.50 219.00 7.00 0.00 3554.00
1989 0.00 0.50 68.00 215.50 360.00 570.50 942.50 713.00 448.50 218.50 11.00 0.00 3548.00
1990 0.00 0.00 21.00 211.00 293.50 631.50 902.00 773.50 613.00 157.00 12.00 0.00 3614.50
1991 0.00 0.50 5.00 100.50 331.00 625.50 814.50 800.50 479.50 242.50 6.00 0.00 3405.50
1992 0.00 0.00 41.50 230.50 499.00 637.00 760.00 819.50 451.00 199.00 0.00 0.00 3637.50
1993 0.00 0.00 38.00 66.00 424.50 494.50 634.50 703.00 450.50 143.00 0.00 0.00 2954.00
1994 0.00 2.50 25.00 183.00 474.50 691.00 891.50 877.00 525.00 129.50 14.50 0.00 3813.50
1995 0.00 1.50 38.50 78.50 199.00 537.50 782.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1637.50
1996 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
1997 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
1998 0.00 z 0.00 48.50 115.50 398.00 495.50 1003.50 885.50 688.50 246.50 33.50 6.50 3921.50
1999 0.00 h 1.50 56.00 99.50 60.50 j 599.50 594.00 k 648.50 h 442.20 e 61.00 s 44.00 m 0.00 h 1198.70
2000 0.00 j 1.50 17.50 258.89 c 422.00 i 383.00 m 557.00 l 548.50 m 327.00 m 149.50 g 0.00 b 0.00 f 277.89
2001 0.00 i 0.00 j 39.61 d 150.00 c 282.00 j 640.80 e 682.50 j 510.50 n 640.20 e 170.00 m 6.50 p 0.00 e 1470.61
2002 0.00 j 2.50 2.50 p 51.00 u 390.00 295.00 n 0.00 z 543.50 k 380.00 j 52.50 t 0.00 0.00 l 392.50
2003 3.00 6.00 54.50 96.50 p 302.50 m 404.50 k 586.50 m 608.50 k 320.50 l 232.50 h 0.00 l 0.00 v 63.50
2004 0.00 0.00 k 27.50 s 159.00 f 215.50 l 636.00 877.50 470.50 k 399.00 g 94.00 p 2.00 j 0.00 o 1513.50
2005 0.00 n 0.00 n 6.50 m 87.50 n 184.00 v 283.50 p 112.50 z 848.33 e 245.00 j 0.00 z 12.50 r 0.00 p 848.33
2006 0.00 n 0.00 h 7.00 g 5.00 z 83.00 v 601.00 f 327.50 v 661.00 f 420.00 38.00 k 33.50 s 4.00 k 420.00
2007 0.00 l 0.00 i 16.50 x 60.50 l 487.65 e 316.50 s 451.50 r 916.50 441.50 f 192.00 h 31.00 i 0.00 u 1404.15
2008 0.00 j 0.00 g 0.50 n 57.50 l 248.00 n 339.50 l 224.50 x 673.00 h 322.00 k 222.50 52.50 h 4.50 v 222.50
2009 5.00 k 2.50 m 10.00 z 176.50 202.50 u 364.00 l 480.00 o 628.00 g 436.00 l 96.00 k 55.50 0.00 232.00
2010 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 932.50 873.50 613.50 338.50 54.00 0.00 2812.00
2011 0.00 0.00 9.00 71.00 207.00 594.50 933.00 942.00 637.00 270.50 5.00 0.00 3669.00
2012 2.00 0.00 118.00 242.00 438.13 a 766.00 1025.00 997.50 642.50 259.88 a 56.50 0.50 4548.02
2013 0.00 b 0.00 42.00 11.00 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 42.00
Period of Record Statistics
MEAN 0.49 2.17 26.38 142.23 381.31 627.40 886.54 820.85 498.09 197.69 19.11 0.91 3610.06
S.D. 1.13 4.68 28.27 69.83 93.86 87.62 69.77 69.47 83.06 66.10 20.79 2.25 337.94
SKEW 2.41 3.47 2.45 0.59 0.22 0.05 -0.28 -0.29 -0.18 -0.13 2.10 2.84 0.12
MAX 5.00 30.50 184.00 320.50 661.50 835.00 1030.00 997.50 688.50 338.50 129.00 12.00 4548.02
MIN 0.00 0.00 0.00 29.50 199.00 433.00 634.50 651.00 261.00 42.50 0.00 0.00 2941.00
NO YRS 95 101 99 97 92 95 89 87 94 91 93 96 70