GREEN RIVER AVIATION, UTAH

Monthly Total Growing Degree Days

(423418)

Base Temperature = 40 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
1893 0.00 z 0.00 m 158.00 371.50 715.50 999.50 1192.50 1095.00 686.00 278.00 26.00 27.00 5549.00
1894 0.00 0.00 0.00 z 0.00 z 0.00 z 422.50 p 0.00 z 0.00 z 0.00 z 106.00 o 0.00 0.00 0.00
1895 0.00 0.00 z 118.50 t 0.00 z 707.50 942.50 1239.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2889.00
1896 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
1897 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
1898 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
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 223.50 183.50 9.50 416.50
1900 67.50 45.50 228.50 393.50 842.50 1019.00 1193.50 1016.00 664.00 395.00 92.00 0.00 5957.00
1901 1.00 37.00 125.00 357.00 868.50 885.50 1272.50 1285.50 866.50 527.00 104.00 0.00 6329.50
1902 0.00 0.00 138.00 462.00 849.50 1107.50 1212.50 1228.50 774.00 493.00 110.50 0.00 6375.50
1903 0.00 0.00 219.50 429.00 685.00 1192.00 1208.50 1169.00 773.00 598.50 45.00 0.00 6319.50
1904 0.00 72.50 544.00 517.50 738.50 975.00 1205.50 1120.50 794.50 399.50 33.50 4.00 6405.00
1905 0.00 30.00 258.50 467.00 473.50 956.00 1153.00 1192.50 777.00 301.00 154.00 0.00 5762.50
1906 0.00 12.00 240.50 474.00 660.50 873.50 1211.07 a 0.00 z 0.00 z 0.00 z 0.00 z 122.50 r 3471.57
1907 43.00 410.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 33.50 m 0.00 453.50
1908 0.00 38.50 199.50 501.00 593.50 924.00 1336.50 1179.00 807.50 352.00 6.50 0.00 5938.00
1909 2.50 4.50 175.00 380.00 624.50 1071.50 1152.00 1028.50 707.50 554.00 130.00 1.00 5831.00
1910 0.00 17.00 378.00 530.50 758.00 1161.00 1339.00 1236.50 904.00 481.00 144.50 5.00 6954.50
1911 35.00 28.00 290.00 413.00 743.00 942.00 1193.00 1142.50 871.50 334.00 44.50 0.00 6036.50
1912 0.00 7.00 138.50 303.50 620.50 978.50 1126.00 1091.50 572.50 335.50 41.00 0.00 5214.50
1913 0.00 0.50 100.00 390.00 706.00 947.50 1175.00 1191.00 745.00 305.50 101.00 4.50 5666.00
1914 0.00 15.00 195.00 480.00 782.50 911.50 1171.50 1165.50 812.00 421.00 64.50 0.00 6018.50
1915 0.00 0.50 166.50 548.50 590.00 854.50 1163.50 1154.00 782.50 392.00 81.50 5.00 5738.50
1916 0.00 9.00 234.50 460.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 132.50 j 28.00 0.50 732.50
1917 0.00 36.00 52.00 248.00 509.00 811.00 1146.50 943.50 669.00 293.50 31.50 0.00 4740.00
1918 3.00 24.00 206.00 285.00 572.00 1042.50 1006.50 920.00 681.50 436.50 31.50 0.00 5208.50
1919 0.00 3.00 114.00 466.50 783.50 961.00 1315.00 1143.50 925.00 296.50 28.00 0.00 6036.00
1920 0.00 39.50 73.00 261.00 724.50 908.00 1201.00 1102.50 766.00 345.50 50.00 0.00 5471.00
1921 0.00 24.50 249.00 322.00 695.00 962.50 1226.50 1090.00 792.50 534.50 91.00 25.50 6013.00
1922 8.50 18.00 118.00 271.00 688.00 1042.50 1246.50 1215.00 927.00 357.00 44.00 23.00 5958.50
1923 11.00 4.50 57.50 341.00 716.50 901.50 1288.00 1094.00 734.00 306.50 61.50 0.00 5516.00
1924 0.00 21.00 30.00 370.00 712.00 1001.00 1205.00 1142.00 754.50 365.00 48.50 0.00 5649.00
1925 0.00 8.50 189.00 481.00 842.00 945.00 1266.00 1040.00 770.50 360.00 36.50 0.50 5939.00
1926 0.00 12.00 162.00 515.00 776.50 1058.00 1225.00 1164.50 735.50 455.00 18.10 a 13.50 6135.10
1927 0.00 35.00 138.50 411.50 685.50 962.50 1249.00 1070.50 813.00 434.00 123.50 0.00 5923.00
1928 0.00 12.50 225.00 343.50 775.50 892.00 1193.00 1091.50 823.00 454.50 76.00 0.00 5886.50
1929 0.00 2.00 116.50 302.50 688.50 904.00 1275.50 1205.00 779.50 447.00 0.00 6.00 5726.50
1930 0.00 17.50 130.00 539.00 615.00 954.00 1252.00 1147.00 775.50 345.50 37.00 0.00 5812.50
1931 0.00 39.50 108.50 443.00 672.50 1057.50 1334.50 1207.00 895.50 476.00 68.50 0.00 6302.50
1932 0.00 44.50 132.50 404.50 696.50 952.50 1241.50 1167.00 795.00 360.00 16.50 0.00 5810.50
1933 0.00 0.00 142.50 270.50 549.00 1060.50 1319.00 1158.00 948.50 536.50 29.00 8.00 6021.50
1934 4.50 58.00 305.50 520.50 883.00 893.50 1303.50 1250.00 776.50 481.00 94.50 2.00 6572.50
1935 7.50 13.50 97.00 373.50 590.50 1020.50 1247.00 1188.00 856.00 372.00 21.00 0.00 5786.50
1936 0.00 22.50 156.00 454.50 820.00 1093.50 1273.00 1209.00 804.00 402.00 7.50 0.00 6242.00
1937 0.00 0.00 136.00 395.00 838.00 979.50 1300.00 1218.00 906.00 475.00 88.50 8.50 6344.50
1938 0.00 25.00 196.00 441.00 692.50 1044.50 1178.50 1191.00 881.50 453.50 27.00 0.00 6130.50
1939 0.00 0.00 218.00 504.00 810.00 971.00 1269.50 1194.00 851.00 385.00 66.50 1.50 6270.50
1940 0.00 40.50 215.00 447.00 848.00 1121.00 1281.00 1193.50 837.00 452.50 11.50 0.00 6447.00
1941 0.00 33.00 167.50 332.50 781.50 890.50 1188.00 1122.50 734.50 405.50 105.50 2.00 5763.00
1942 0.00 3.50 47.50 456.50 634.00 979.00 1256.00 1176.50 793.00 479.00 90.50 0.50 5916.00
1943 10.50 25.50 166.00 581.50 739.00 928.50 1277.50 1192.00 897.00 497.00 34.00 1.50 6350.00
1944 0.00 5.50 108.50 327.00 753.50 871.50 1213.50 1168.00 894.00 545.00 112.00 0.50 5999.00
1945 1.00 45.50 106.00 305.00 755.50 866.50 1282.50 1231.00 814.00 507.00 71.00 0.00 5985.00
1946 0.00 5.50 181.50 580.00 691.00 1066.00 1319.00 1220.50 856.00 301.00 33.50 4.50 6258.50
1947 0.00 18.50 206.00 400.00 858.00 874.50 1242.50 1185.00 954.50 574.50 35.50 4.50 6353.50
1948 0.00 14.50 59.50 430.00 754.00 959.00 1135.00 1061.50 843.50 383.50 28.50 6.00 5675.00
1949 0.00 4.00 136.00 481.50 685.50 857.00 1181.00 1081.00 819.00 330.50 50.00 0.50 5626.00
1950 0.00 28.00 93.00 b 378.50 594.17 a 868.00 1113.00 990.45 a 548.00 f 495.00 72.00 0.00 4632.12
1951 0.00 4.00 110.50 381.21 a 674.00 843.00 1215.50 1064.00 733.50 332.50 14.50 0.00 a 5372.71
1952 0.00 0.00 52.50 410.00 706.00 897.00 1149.00 1158.50 811.50 433.00 58.00 0.00 5675.50
1953 0.00 0.00 123.50 309.50 499.50 937.50 1209.00 1027.00 798.50 403.00 74.50 0.00 5382.00
1954 10.00 33.50 119.00 509.00 768.50 895.50 1257.50 1049.50 837.50 406.32 c 67.50 0.00 b 5953.82
1955 0.00 0.00 m 55.50 294.50 635.00 839.00 1113.50 1163.50 771.72 a 417.00 23.50 27.50 5340.72
1956 8.50 8.00 127.50 373.50 721.50 961.00 1099.50 957.50 816.00 399.50 1.00 5.50 5479.00
1957 0.00 65.00 186.50 321.00 591.50 899.00 1136.50 1072.50 730.00 420.50 41.00 0.00 5463.50
1958 0.00 58.00 104.50 326.50 783.50 965.00 1087.50 1210.00 829.00 443.00 92.00 1.50 5900.50
1959 0.00 14.50 115.00 398.00 699.50 1020.00 1176.50 1079.00 722.50 0.00 z 32.50 0.00 5257.50
1960 1.50 0.00 180.00 378.50 659.50 992.50 1196.00 1066.00 844.50 414.50 76.50 0.00 5809.50
1961 0.00 2.00 129.50 333.10 a 679.50 1049.50 1209.00 1148.50 601.00 391.00 21.50 6.00 5570.60
1962 0.00 54.38 b 66.50 454.50 620.00 896.00 1098.00 1052.50 771.00 466.00 99.00 1.50 5579.38
1963 1.50 51.50 112.00 331.00 779.50 874.00 1186.50 1123.50 857.00 577.00 114.00 0.00 6007.50
1964 0.00 0.00 42.50 323.00 632.00 859.00 1237.50 1073.50 731.50 453.00 26.50 7.50 5386.00
1965 7.00 7.00 94.50 338.50 583.00 809.00 1134.00 1059.50 603.00 446.00 183.00 0.00 5264.50
1966 0.00 3.00 154.50 368.00 743.00 948.50 1195.00 1107.50 800.00 377.00 80.00 22.50 5799.00
1967 1.50 19.50 235.50 281.50 605.50 834.00 1199.50 1163.00 848.00 451.50 80.00 0.00 5719.50
1968 0.00 z 45.50 195.00 267.00 662.50 959.50 1161.50 980.50 700.00 410.00 56.50 0.00 a 5438.00
1969 13.00 16.00 94.00 414.00 805.50 867.00 1189.50 1194.00 842.50 223.50 38.00 3.50 5700.50
1970 0.00 32.50 71.00 206.00 713.00 918.00 1178.50 1162.50 681.43 b 281.00 55.00 0.00 5298.93
1971 1.00 11.00 154.50 368.50 608.00 944.50 1210.00 1185.50 656.50 367.00 15.00 7.50 5529.00
1972 0.00 41.00 269.50 400.00 726.50 995.50 1216.50 1102.00 792.50 457.50 28.89 c 0.00 6029.89
1973 0.00 c 0.00 80.50 294.50 702.00 880.50 644.00 n 0.00 z 0.00 z 0.00 z 0.00 z 0.00 s 1957.50
1974 0.00 g 0.00 c 243.98 d 323.08 d 488.00 k 0.00 z 1163.03 b 763.50 h 321.50 o 376.50 f 44.00 h 0.00 n 1730.09
1975 0.00 c 1.12 c 112.63 a 198.46 d 371.00 h 527.00 i 1150.00 973.18 c 710.89 b 203.50 g 43.85 d 0.00 b 3190.13
1976 0.00 d 30.00 64.38 e 312.93 a 670.00 679.50 f 825.00 k 1054.00 496.00 l 309.48 a 71.54 d 0.00 i 2512.34
1977 0.00 d 9.15 b 75.90 b 450.00 e 482.50 g 1102.50 d 821.50 j 1132.65 d 819.60 e 339.50 g 41.00 i 9.00 f 3589.80
1978 0.00 d 10.23 b 187.00 m 323.00 g 467.50 h 977.68 b 840.50 i 853.00 f 721.07 b 468.32 c 120.00 c 0.00 c 2297.30
1979 0.00 b 0.00 h 92.00 411.60 e 459.50 l 889.82 b 1213.50 1076.96 d 685.00 g 349.50 h 2.50 h 0.00 e 3683.88
1980 0.53 b 56.45 a 82.84 b 355.18 b 603.90 e 943.33 c 1219.50 1095.85 a 303.50 s 66.00 q 120.60 e 0.00 e 4478.19
1981 3.74 b 24.77 b 147.80 c 421.00 f 539.00 f 440.50 q 1252.83 b 1122.09 c 615.50 i 375.21 b 77.68 b 0.00 e 3004.12
1982 0.00 29.50 153.00 344.50 714.00 914.50 804.00 j 727.50 k 436.00 l 278.50 40.00 3.00 2477.00
1983 2.50 38.00 178.50 267.00 610.00 903.50 1164.00 1173.50 883.50 436.50 68.50 l 0.00 5657.00
1984 0.00 0.00 c 129.50 314.00 873.50 909.00 1253.50 1137.50 463.00 o 250.00 54.00 0.00 4921.00
1985 0.00 j 2.00 175.00 471.00 767.50 1057.50 1242.50 763.00 j 0.00 z 0.00 z 0.00 z 0.00 z 3715.50
1986 0.00 z 0.00 z 0.00 z 439.50 680.00 1088.50 1192.50 1208.00 691.00 379.00 63.50 2.50 5744.50
1987 0.50 13.00 90.50 488.50 768.50 1044.50 1113.50 1088.00 770.50 499.50 114.50 0.00 5991.50
1988 0.00 9.00 119.50 437.50 681.00 1092.00 1256.00 1128.50 719.00 593.50 133.00 0.00 6169.00
1989 0.00 27.00 252.00 554.00 727.00 955.00 1233.00 1039.00 757.00 387.50 53.00 5.50 5990.00
1990 0.00 28.00 258.50 548.50 668.50 1019.50 1223.50 1101.50 865.00 359.00 54.50 3.00 6129.50
1991 0.00 12.00 127.50 348.50 681.50 935.50 1161.00 1121.00 779.50 477.50 58.00 0.00 5702.00
1992 0.00 b 25.00 280.50 621.50 812.50 964.00 1103.50 1145.50 815.50 519.50 25.00 0.00 6312.50
1993 1.03 a 15.50 260.00 414.50 785.50 939.00 1101.50 1102.50 783.00 409.00 20.00 0.00 5831.53
1994 0.00 33.00 265.50 479.00 794.50 1137.50 1273.00 1261.50 882.50 424.50 70.00 1.50 6622.50
1995 8.78 a 116.50 265.05 a 385.86 a 646.35 a 889.50 1174.00 1211.50 873.00 438.50 104.48 a 38.00 6151.53
1996 3.50 71.00 225.27 a 448.50 859.00 662.50 l 1311.00 708.00 m 794.50 402.50 96.50 18.50 4230.27
1997 0.00 1.50 250.00 354.50 828.50 990.00 d 1165.00 1153.00 875.00 c 395.50 62.50 1.50 6077.00
1998 4.50 38.00 25.00 q 386.50 713.00 866.00 1300.50 1213.50 950.00 409.50 83.50 12.00 5977.00
1999 20.31 b 56.54 b 287.27 a 346.50 679.50 748.00 g 1254.93 d 660.00 m 774.83 a 290.50 g 100.34 a 5.00 i 3520.21
2000 28.13 d 87.00 d 181.87 a 291.00 o 585.00 h 1056.50 883.50 i 0.00 z 828.89 c 489.28 a 15.50 0.00 h 2687.17
2001 3.62 a 31.77 b 276.50 502.50 631.50 f 300.50 v 971.50 g 734.50 l 913.85 d 498.50 0.00 z 0.00 d 2226.73
2002 0.00 4.00 183.00 558.50 0.00 z 0.00 z 763.50 n 543.00 p 556.00 j 347.50 31.00 0.00 1124.00
2003 3.50 35.50 0.00 z 0.00 z 760.65 d 483.50 p 0.00 z 1251.50 788.00 0.00 z 113.40 e 10.50 g 2952.55
2004 0.00 42.00 368.50 497.22 c 655.50 f 526.50 o 196.50 z 589.50 n 771.50 526.00 118.00 0.00 i 2323.22
2005 36.50 60.00 200.90 e 387.50 635.00 f 669.00 j 561.50 r 625.50 n 784.50 480.50 b 91.67 c 0.00 z 2041.57
2006 5.50 k 17.00 134.16 b 364.00 f 651.50 g 207.50 y 192.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 151.16
Period of Record Statistics
MEAN 3.42 26.70 164.89 400.88 708.55 960.01 1210.25 1131.08 795.40 415.34 63.45 3.40 5898.86
S.D. 9.80 43.66 82.38 88.73 88.39 82.51 64.01 75.59 78.18 82.19 40.28 7.07 374.21
SKEW 4.27 6.66 1.23 0.14 -0.18 0.55 -0.22 -0.52 -0.33 -0.05 0.68 2.86 -0.14
MAX 67.50 410.50 544.00 621.50 883.00 1192.00 1339.00 1285.50 954.50 598.50 183.50 38.00 6954.50
MIN 0.00 0.00 30.00 198.46 473.50 809.00 1006.50 920.00 572.50 223.50 0.00 0.00 4740.00
NO YRS 104 105 103 102 95 95 95 92 93 95 100 98 76