UKIAH, CALIFORNIA

Monthly Total Growing Degree Days

(049122)

Base Temperature = 40 F

File last updated on Jul 24, 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
1906 0.00 z 0.00 z 240.50 h 481.00 561.00 688.50 1114.50 1031.00 799.50 636.53 a 313.00 224.50 5849.53
1907 113.50 359.00 229.00 544.50 614.00 736.00 944.00 933.50 690.00 654.50 324.00 190.00 6332.00
1908 180.50 177.00 332.50 499.00 471.00 715.00 1111.50 1026.50 814.00 543.00 366.50 109.50 6346.00
1909 261.50 201.00 275.50 565.00 604.50 779.00 895.50 976.00 820.00 592.50 294.50 107.47 a 6372.47
1910 78.00 188.50 450.00 563.00 755.50 763.50 1025.00 981.50 777.00 679.00 332.00 239.00 6832.00
1911 130.50 104.50 407.50 414.00 528.50 793.50 1098.00 946.00 687.50 555.50 318.50 130.50 6114.50
1912 260.50 315.50 292.00 359.50 645.50 794.00 948.50 940.50 765.50 446.00 289.50 153.00 6210.00
1913 102.50 222.00 303.50 421.50 641.50 731.00 1027.50 1075.00 868.50 622.00 273.00 130.50 6418.50
1914 242.00 271.00 503.00 468.50 675.50 789.00 1033.00 995.00 688.50 510.00 269.50 64.58 a 6509.58
1915 147.00 203.50 406.50 513.00 512.00 759.00 989.50 1026.50 719.00 579.00 254.50 221.50 6331.00
1916 75.00 341.50 404.00 508.50 537.00 759.50 971.50 958.00 778.00 456.50 215.00 88.50 6093.00
1917 68.00 217.00 212.35 a 417.00 498.00 781.50 1054.50 986.00 781.50 733.00 374.50 268.50 6391.85
1918 240.50 195.00 340.50 481.00 589.50 943.00 921.50 942.00 796.00 689.50 279.00 75.00 6492.50
1919 174.00 172.00 289.00 563.50 721.00 768.00 975.00 991.00 702.50 494.50 187.50 141.50 6179.50
1920 221.00 202.50 245.00 319.50 623.50 761.00 870.00 982.00 724.00 479.00 278.00 151.00 5856.50
1921 115.50 253.56 a 404.50 396.50 552.50 788.00 1019.00 900.00 769.50 660.00 370.50 187.50 6417.06
1922 65.50 153.50 226.50 402.50 619.50 836.50 1072.50 900.50 905.50 529.50 231.00 143.50 6086.50
1923 113.50 203.00 325.50 378.50 586.50 628.45 a 911.00 905.50 809.00 519.50 390.50 112.00 5882.95
1924 128.00 354.00 275.00 533.00 752.00 860.00 981.50 992.00 833.00 587.00 329.00 169.50 6794.00
1925 238.50 309.00 340.00 509.50 688.50 867.50 1023.00 932.00 684.50 613.00 287.00 290.00 6782.50
1926 208.50 323.00 547.00 649.00 706.50 983.50 1070.50 980.00 713.00 639.00 455.00 164.00 7439.00
1927 207.00 226.00 323.50 452.00 604.50 847.50 1043.00 950.00 697.00 634.00 415.00 129.50 6529.00
1928 223.50 288.00 441.00 434.00 750.50 805.50 1053.00 991.00 799.00 598.00 313.00 129.00 6825.50
1929 128.00 171.50 340.50 340.50 662.50 791.50 951.50 1004.50 797.50 682.50 347.50 345.00 6563.00
1930 161.50 336.00 453.50 479.00 530.50 820.50 1004.50 969.50 762.00 652.50 389.00 163.50 6722.00
1931 245.00 321.00 467.00 542.50 841.50 814.00 1164.00 1033.00 763.50 632.00 310.50 150.00 7284.00
1932 157.50 239.50 474.00 412.00 680.00 929.50 1009.50 1035.00 998.50 693.50 473.50 160.00 7262.50
1933 126.00 179.00 365.50 484.50 520.00 775.00 1118.50 1064.50 783.50 815.00 444.50 251.50 6927.50
1934 334.50 336.00 627.50 623.50 729.00 835.50 1001.00 1049.00 888.50 625.50 391.00 198.00 7639.00
1935 158.50 264.00 231.50 447.00 692.50 876.50 986.50 1059.00 914.00 612.50 299.50 199.00 6740.50
1936 266.00 255.00 452.50 546.50 733.50 809.50 1066.50 1077.50 873.50 715.07 a 387.00 161.00 7343.57
1937 25.50 154.50 365.50 406.00 685.00 813.50 1062.50 1033.00 849.50 687.00 407.00 254.00 6743.00
1938 274.50 234.00 269.50 462.50 716.50 911.50 1074.50 965.00 847.50 590.00 304.00 300.00 6949.50
1939 209.00 185.50 410.50 584.00 682.50 828.00 1035.00 1005.50 905.00 671.50 404.50 277.00 7198.00
1940 267.00 313.00 472.00 520.00 750.00 944.50 963.50 1014.00 758.50 634.00 319.50 304.50 7260.50
1941 261.50 315.00 435.50 445.50 669.50 709.00 1086.50 907.00 766.50 590.00 431.00 245.50 6862.50
1942 240.50 222.50 345.50 412.00 560.50 793.00 1069.50 1044.50 872.00 678.00 343.50 215.50 6797.00
1943 200.50 304.00 426.50 511.55 a 664.50 711.50 1005.50 937.50 941.00 594.00 415.50 219.00 6931.05
1944 174.50 210.50 423.50 366.00 655.00 738.50 1002.00 983.00 920.00 697.00 309.00 258.50 6737.50
1945 243.50 295.50 256.50 488.00 608.50 858.00 1089.00 981.50 890.17 a 687.00 338.50 219.50 6955.67
1946 177.00 165.00 325.50 503.50 677.00 727.00 1005.00 1026.00 809.00 543.00 275.00 237.50 6470.50
1947 147.50 361.00 496.00 614.50 806.50 819.00 880.00 945.50 930.00 666.50 340.00 200.50 7207.00
1948 265.50 204.50 278.50 332.50 557.50 826.50 944.00 955.00 849.00 674.50 280.00 f 103.52 c 5991.02
1949 43.50 180.00 320.00 589.50 670.50 907.50 1022.50 932.00 911.00 648.00 539.00 172.00 6935.50
1950 98.00 300.50 354.50 547.50 737.50 806.00 1121.00 1089.50 875.00 657.00 497.50 331.00 7415.00
1951 206.50 270.50 395.00 568.00 722.50 881.00 999.50 1049.00 938.00 644.50 382.00 175.50 7232.00
1952 116.50 258.50 302.50 551.50 768.00 732.00 1111.50 1015.50 968.50 786.50 339.00 237.50 7187.50
1953 333.00 332.50 390.00 507.00 557.50 709.50 1084.50 932.50 979.50 635.50 b 419.50 259.00 7140.00
1954 212.50 384.50 351.00 614.00 736.00 761.50 1059.00 932.00 805.00 608.50 397.00 185.00 7046.00
1955 128.00 232.00 357.00 337.00 726.00 837.50 957.00 1080.50 931.00 713.50 347.50 263.50 6910.50
1956 225.00 174.50 383.50 520.00 671.67 a 837.00 1057.44 d 946.50 886.00 607.00 368.00 197.00 6873.61
1957 80.00 286.00 379.00 534.50 638.00 952.50 1018.00 955.00 895.50 570.50 357.50 219.00 6885.50
1958 221.00 352.50 257.50 485.50 763.50 837.50 1104.50 1179.50 932.00 767.00 400.50 323.50 7624.50
1959 263.00 213.00 447.50 613.50 612.50 842.00 1138.50 1050.00 808.50 763.50 418.50 204.50 7375.00
1960 175.31 b 259.50 450.50 458.00 600.00 1020.50 1155.00 1047.00 922.50 658.00 240.00 j 262.00 7008.31
1961 268.50 306.50 316.00 524.00 554.50 971.50 1095.33 a 1095.50 849.00 665.50 343.50 198.50 7188.33
1962 246.50 223.50 292.50 579.00 579.50 876.00 1067.00 1003.50 900.50 644.00 407.00 284.50 7103.50
1963 162.50 450.50 290.00 326.00 680.00 825.00 936.00 986.50 909.00 653.00 349.50 234.50 6802.50
1964 154.50 286.00 308.50 454.00 571.00 777.00 1005.00 1026.00 830.00 757.50 290.50 251.50 6711.50
1965 255.50 266.00 389.50 468.50 625.50 756.50 1022.00 1010.00 779.00 770.50 372.00 130.50 6845.50
1966 185.00 205.00 399.00 627.41 a 746.50 821.00 934.50 1034.50 880.00 711.50 392.00 261.00 7197.41
1967 226.50 337.50 282.50 214.00 712.50 853.00 1098.50 1164.00 988.00 698.50 474.00 176.00 7225.00
1968 170.50 426.00 438.00 523.00 629.00 891.00 1077.00 951.00 917.50 640.50 362.00 142.00 7167.50
1969 161.00 162.50 375.00 429.50 795.00 832.00 1069.50 1080.50 954.50 594.50 413.00 303.50 7170.50
1970 282.50 333.00 421.50 366.50 763.50 890.00 1113.00 1030.50 886.50 619.00 405.00 149.00 7260.00
1971 236.50 278.50 316.50 389.00 606.00 766.00 1070.50 1053.00 864.00 568.00 305.00 83.50 6536.50
1972 153.50 282.50 499.00 447.00 712.50 872.07 a 1049.00 1049.00 768.50 581.00 297.00 151.00 6862.07
1973 167.50 297.00 285.50 550.00 791.50 948.00 1072.00 988.00 832.50 640.50 306.00 259.00 7137.50
1974 171.50 195.50 374.00 454.00 677.00 882.00 1021.00 1075.50 976.00 728.50 334.00 216.00 7105.00
1975 235.00 229.50 327.50 318.00 737.00 865.00 1004.50 999.00 940.50 565.50 282.50 256.50 6760.50
1976 221.50 252.00 321.50 371.00 710.00 0.00 z 1032.50 904.50 864.00 700.00 514.50 222.50 6114.00
1977 204.50 371.50 305.87 a 562.00 472.50 943.50 1067.00 1067.00 825.00 650.00 370.00 284.50 7123.37
1978 302.00 318.00 500.00 399.00 697.00 801.50 1056.50 1065.50 836.00 776.00 322.50 161.50 7235.50
1979 184.00 218.50 445.50 479.00 767.00 891.00 1065.00 970.50 954.50 700.60 a 350.50 267.00 7293.10
1980 283.50 385.00 369.93 a 522.00 640.00 702.00 1060.50 992.00 864.00 747.00 411.50 311.00 7288.43
1981 307.50 353.50 396.00 541.00 697.00 949.50 1084.50 1048.00 885.50 586.00 441.00 323.50 7613.00
1982 158.50 313.50 296.50 428.00 743.00 810.50 992.00 1011.50 828.00 633.00 299.50 203.00 6717.00
1983 270.50 333.00 370.00 388.50 712.00 829.00 937.00 1029.00 945.00 0.00 z 337.50 287.50 6439.00
1984 321.50 277.50 480.50 440.50 752.00 841.50 1197.50 1046.00 957.00 552.00 294.50 146.00 7306.50
1985 182.00 0.00 z 312.50 0.00 z 649.00 991.00 1153.00 987.00 776.50 649.50 0.00 z 211.50 5912.00
1986 320.00 362.50 535.50 510.50 667.50 900.00 1054.00 1109.50 740.50 707.00 395.50 212.50 7515.00
1987 179.00 296.00 377.00 623.00 806.50 959.00 910.50 1095.00 917.50 782.50 347.00 168.50 7461.50
1988 215.50 358.00 453.00 507.00 611.00 796.50 1124.50 1041.00 900.00 769.00 356.00 212.50 7344.00
1989 189.00 180.00 387.50 635.00 649.50 830.00 937.50 0.00 z 823.50 606.50 374.00 207.00 5819.50
1990 194.00 182.50 422.50 606.00 617.00 810.50 1066.00 1018.50 865.00 694.00 308.50 86.50 6871.00
1991 210.50 391.00 246.00 420.50 579.50 758.00 1095.00 956.00 1007.50 823.00 394.00 183.00 7064.00
1992 193.00 372.50 454.00 596.50 867.50 876.00 1010.50 1072.00 899.00 734.50 358.50 153.50 7587.50
1993 171.00 194.00 482.00 451.50 649.50 795.00 961.00 978.00 869.50 711.00 295.50 145.50 6703.50
1994 239.00 187.50 465.00 500.00 663.50 808.00 1078.00 958.00 878.50 609.00 179.50 126.50 6692.50
1995 290.00 371.50 299.00 428.00 579.00 758.00 996.50 1008.00 866.50 681.00 491.50 304.00 7073.00
1996 243.00 339.00 469.00 517.00 684.00 857.00 1149.50 1060.50 842.00 641.00 388.00 263.00 7453.00
1997 254.50 274.00 454.50 506.00 799.50 783.50 1027.50 970.00 857.00 592.50 407.50 192.50 7119.00
1998 279.50 203.50 383.50 437.00 481.00 788.50 1035.00 1087.00 909.50 563.50 300.00 163.50 6631.50
1999 198.00 168.00 251.00 454.50 608.50 789.50 923.00 960.00 0.00 z 692.50 407.50 196.50 5649.00
2000 221.50 306.00 403.00 a 541.00 674.77 a 943.50 928.00 980.00 861.00 620.00 266.00 224.50 6969.27
2001 151.38 a 190.00 481.50 386.90 a 864.50 815.00 1003.50 0.00 z 883.00 761.05 a 377.50 224.00 6138.33
2002 163.27 a 314.00 352.50 508.97 a 641.00 843.00 1060.50 0.00 z 864.50 619.00 408.50 238.00 6013.23
2003 376.50 263.50 421.50 314.00 656.50 862.50 1095.50 961.50 915.00 732.50 264.00 213.00 7076.00
2004 224.50 239.50 576.50 0.00 z 674.00 809.50 1040.00 995.00 836.50 601.50 316.00 219.50 6532.50
2005 198.00 304.00 462.00 417.00 0.00 z 709.00 1106.00 1040.50 768.50 623.00 374.00 254.00 6256.00
2006 226.00 275.00 194.50 441.11 c 735.73 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1872.34
Period of Record Statistics
MEAN 200.10 267.32 375.63 478.01 663.95 825.38 1033.83 1006.16 849.59 646.94 352.98 204.16 6905.30
S.D. 68.27 71.76 86.63 86.08 86.50 74.94 68.06 56.55 77.71 76.96 67.41 63.69 413.36
SKEW -0.14 0.15 0.20 -0.26 -0.07 0.28 -0.23 0.36 -0.26 -0.10 0.13 0.01 -0.45
MAX 376.50 450.50 627.50 649.00 867.50 1020.50 1197.50 1179.50 1007.50 823.00 539.00 345.00 7639.00
MIN 25.50 104.50 194.50 214.00 471.00 628.45 870.00 900.00 684.50 446.00 179.50 64.58 5856.50
NO YRS 100 99 100 99 100 99 100 97 99 99 97 100 88