UKIAH, CALIFORNIA

Monthly Total Growing Degree Days

(049122)

Base Temperature = 50 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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 6.00 5.50 14.00 36.00 254.72 a 369.50 577.00 634.00 290.00 108.00 31.00 18.50 2344.22
1894 5.50 1.00 51.00 154.00 296.50 341.50 661.00 669.50 473.50 250.50 104.00 0.00 3008.00
1895 12.00 35.00 64.50 121.00 255.50 524.00 562.50 637.00 355.50 306.50 44.50 4.50 2922.50
1896 35.00 35.00 123.50 24.00 194.78 a 446.50 711.00 582.50 437.07 a 272.00 38.00 13.50 2912.85
1897 3.50 2.00 2.50 230.50 400.00 435.50 661.00 631.50 403.00 228.00 35.50 9.00 3042.00
1898 0.00 34.50 46.00 197.00 196.50 471.50 639.50 632.00 407.50 247.48 a 53.28 a 0.00 f 2925.26
1899 31.53 b 34.00 35.50 143.50 151.50 523.45 a 692.00 539.00 597.50 219.00 98.50 9.00 3074.48
1900 46.50 41.00 186.00 120.52 a 352.00 607.50 699.50 576.50 413.50 205.50 95.50 33.00 3377.02
1901 2.00 88.00 124.00 152.00 272.28 a 445.00 630.50 705.00 439.50 371.00 97.00 26.50 3352.78
1902 0.00 45.50 24.50 97.00 209.25 a 0.00 z 0.00 z 0.00 z 504.50 248.00 49.50 h 24.80 a 1153.55
1903 10.00 16.00 39.00 103.50 368.00 538.00 579.50 610.00 524.46 b 386.50 94.50 11.00 3280.46
1904 5.50 17.61 a 42.50 154.50 414.50 563.50 678.50 711.50 586.50 278.50 67.50 6.00 3526.61
1905 24.50 75.50 147.50 200.00 227.00 465.00 720.00 653.00 486.21 a 285.50 65.50 0.50 3350.21
1906 20.00 52.23 b 92.40 e 197.88 d 251.50 381.43 b 804.50 721.00 499.50 318.50 93.50 17.00 3449.45
1907 5.00 93.00 28.00 254.00 304.00 436.00 634.00 623.50 390.00 344.50 76.50 21.00 3209.50
1908 7.50 16.00 98.00 207.00 169.50 415.00 801.50 716.50 514.00 235.00 113.50 0.00 3293.50
1909 45.50 12.50 31.00 265.50 294.50 479.00 585.50 666.00 520.00 290.00 81.50 4.65 a 3275.65
1910 1.50 18.00 164.00 263.00 445.50 463.50 715.00 671.50 477.00 369.00 74.50 28.50 3691.00
1911 2.50 0.50 124.50 132.00 223.50 493.50 788.00 636.00 387.50 245.50 63.00 6.00 3102.50
1912 33.00 57.50 54.50 86.50 337.50 494.00 638.50 630.50 466.50 166.50 44.00 12.50 3021.50
1913 1.50 37.50 78.50 144.50 332.00 431.00 717.50 765.00 568.50 312.00 51.00 7.00 3446.00
1914 28.00 33.50 205.50 169.50 365.50 489.00 723.00 685.00 388.50 202.50 36.00 2.07 a 3328.07
1915 3.00 7.00 110.50 213.00 216.00 459.00 679.50 716.50 419.00 270.50 50.50 34.00 3178.50
1916 2.50 95.50 141.50 209.00 228.00 459.50 661.50 648.00 478.00 155.00 33.00 0.00 3111.50
1917 1.00 29.00 37.20 a 144.00 189.50 481.50 744.50 676.00 481.50 423.00 86.00 38.00 3331.20
1918 29.00 14.00 94.00 193.00 279.50 643.00 611.50 632.00 496.00 379.50 42.00 1.00 3414.50
1919 10.50 15.50 61.50 263.50 411.00 468.00 665.00 681.00 402.50 205.50 26.00 9.00 3219.00
1920 25.00 10.00 23.50 109.50 314.00 461.00 560.00 672.00 424.00 174.50 50.00 0.50 2824.00
1921 0.00 49.78 a 106.00 131.50 242.50 488.00 709.00 590.00 469.50 354.00 122.00 14.50 3276.78
1922 0.00 5.00 21.00 136.50 321.00 536.50 762.50 590.50 605.50 222.50 9.00 2.00 3212.00
1923 0.00 40.50 82.00 95.00 276.50 328.45 a 601.00 595.50 509.50 213.00 98.50 0.50 2840.45
1924 8.00 76.50 35.00 238.50 442.00 560.00 671.50 682.00 533.00 283.00 70.50 13.50 3613.50
1925 20.00 58.00 122.50 217.50 378.50 567.50 713.00 622.00 384.50 303.00 27.00 43.00 3456.50
1926 7.50 84.50 246.50 349.00 396.50 683.50 760.50 670.00 413.00 329.00 160.50 16.00 4116.50
1927 21.50 18.00 64.00 169.00 294.50 547.50 733.00 640.00 397.00 324.00 142.00 11.50 3362.00
1928 22.50 27.00 144.00 152.00 440.50 505.50 743.00 681.00 499.00 290.50 77.00 9.00 3591.00
1929 2.50 6.50 79.50 88.00 352.50 491.50 641.50 694.50 497.50 372.50 77.00 79.50 3383.00
1930 4.00 97.50 160.00 180.00 222.00 520.50 694.50 659.50 462.00 343.50 127.00 10.50 3481.00
1931 40.50 73.00 168.00 245.00 531.50 514.00 854.00 723.00 463.50 322.00 112.50 3.00 4050.00
1932 10.50 52.50 168.50 123.00 370.00 629.50 699.50 725.00 698.50 383.50 186.50 17.50 4064.50
1933 4.50 9.50 73.00 208.00 220.50 475.00 808.50 754.50 483.50 505.00 153.50 22.50 3718.00
1934 61.50 69.50 317.50 323.50 419.00 535.50 691.00 739.00 588.50 315.50 118.00 8.00 4186.50
1935 9.50 35.00 44.50 158.50 382.50 576.50 676.50 749.00 614.00 318.00 48.00 19.00 3631.00
1936 24.00 48.50 176.50 257.00 423.50 509.50 756.50 767.50 573.50 405.07 a 119.00 10.00 4070.57
1937 0.00 7.00 96.50 117.00 375.00 513.50 752.50 723.00 549.50 377.00 110.50 40.50 3662.00
1938 22.00 50.00 36.00 164.50 406.50 611.50 764.50 655.00 547.50 280.00 44.00 53.50 3635.00
1939 2.50 23.00 140.50 284.00 375.00 528.00 725.00 695.50 605.00 365.00 112.00 41.00 3896.50
1940 50.50 62.00 169.00 222.00 440.00 644.50 653.50 704.00 458.50 325.50 57.00 49.50 3836.00
1941 20.50 55.50 136.00 154.50 359.50 409.00 776.50 597.00 466.50 282.50 164.00 39.00 3460.50
1942 34.00 18.00 73.00 116.00 255.00 493.00 759.50 734.50 572.00 368.00 79.00 20.50 3522.50
1943 8.00 74.00 133.00 212.07 a 354.50 411.50 695.50 627.50 641.00 287.00 122.00 15.50 3581.57
1944 3.50 18.00 144.50 87.00 345.00 438.50 692.00 673.00 620.00 387.00 42.50 27.00 3478.00
1945 45.50 51.50 32.00 211.00 298.50 558.00 779.00 671.50 590.17 a 377.00 82.00 21.00 3717.17
1946 5.00 11.00 63.00 208.00 367.00 427.00 695.00 716.00 509.00 249.00 42.50 19.00 3311.50
1947 12.00 88.50 193.50 315.50 496.50 519.00 570.00 635.50 630.00 356.50 67.00 3.50 3887.50
1948 32.50 37.00 33.00 78.50 248.50 526.50 634.00 645.00 549.00 367.00 73.00 f 4.98 c 3155.98
1949 0.00 36.50 45.00 289.50 360.50 607.50 712.50 622.00 611.00 342.50 239.00 10.50 3876.50
1950 16.50 74.50 83.50 255.00 436.00 506.00 811.00 779.50 575.00 351.00 207.00 56.50 4151.50
1951 23.00 60.50 137.00 270.50 412.50 581.00 689.50 739.00 638.00 335.50 119.50 4.00 4010.00
1952 11.00 45.50 89.50 251.50 458.00 432.00 801.50 705.50 668.50 476.50 90.50 19.50 4049.50
1953 62.50 73.50 117.50 227.00 248.00 409.50 774.50 622.50 679.50 325.50 b 140.50 17.50 3698.00
1954 17.00 126.00 82.00 314.00 426.00 461.50 749.00 622.00 505.00 298.50 112.50 5.00 3718.50
1955 0.50 23.00 77.00 72.00 416.00 537.50 647.00 770.50 631.00 403.50 124.00 41.00 3743.00
1956 11.50 11.00 95.00 226.50 361.67 a 537.00 747.44 d 636.50 586.00 308.50 100.00 12.00 3633.11
1957 0.00 79.00 95.50 234.50 328.00 652.50 708.00 645.00 595.50 260.50 78.00 14.00 3690.50
1958 14.50 99.50 13.50 208.50 453.50 537.50 794.50 869.50 632.00 457.00 146.00 68.00 4294.00
1959 32.50 33.50 151.50 313.50 304.00 542.00 828.50 740.00 508.50 453.50 124.50 16.50 4048.50
1960 13.90 b 23.00 166.00 176.00 293.00 720.50 845.00 737.00 622.50 348.00 64.50 j 21.50 3966.40
1961 31.50 63.00 51.00 244.50 244.50 671.50 785.33 a 785.50 549.00 356.50 85.50 9.00 3876.83
1962 48.50 31.50 56.00 279.00 269.50 576.00 757.00 693.50 600.50 334.00 124.50 53.00 3823.00
1963 7.00 170.50 20.50 68.50 370.00 525.00 626.00 676.50 609.00 343.00 81.50 25.50 3523.00
1964 1.00 45.00 75.50 163.50 272.50 477.00 695.00 716.00 530.00 447.50 63.50 68.50 3555.00
1965 41.50 20.00 89.00 190.50 317.00 456.50 712.00 700.00 479.00 460.50 113.50 6.50 3586.00
1966 16.50 12.00 131.00 327.41 a 436.50 521.00 624.50 724.50 580.00 401.50 125.50 28.00 3928.41
1967 25.50 76.00 52.50 5.50 402.50 553.50 788.50 854.00 688.00 388.50 198.00 31.50 4064.00
1968 22.50 146.50 144.00 225.50 320.00 591.00 767.00 641.00 617.50 331.50 101.50 7.00 3915.00
1969 16.00 7.00 116.50 142.50 485.00 532.00 759.50 770.50 654.50 284.50 129.50 52.00 3949.50
1970 58.00 68.50 137.50 89.00 456.00 590.00 803.00 720.50 586.50 309.00 114.50 14.00 3946.50
1971 47.50 73.00 60.00 110.50 296.00 466.00 760.50 743.00 564.00 282.50 46.50 0.00 3449.50
1972 5.50 42.00 213.00 159.50 402.50 572.07 a 739.00 739.00 468.50 283.00 31.00 19.00 3674.07
1973 10.00 37.00 28.50 251.00 481.50 648.00 762.00 678.00 532.50 330.50 72.00 24.00 3855.00
1974 17.00 4.50 102.50 161.50 367.00 582.00 711.00 765.50 676.00 418.50 66.00 16.50 3888.00
1975 40.00 41.50 55.50 71.50 429.00 565.00 694.50 689.00 640.50 261.50 56.00 30.00 3574.00
1976 17.50 30.50 73.50 98.50 400.00 0.00 z 722.50 594.50 564.00 390.00 223.50 2.50 3117.00
1977 7.50 114.00 59.93 a 262.00 173.00 643.50 757.00 757.00 525.00 340.00 107.50 46.50 3792.93
1978 27.50 77.00 192.00 126.50 387.00 501.50 746.50 755.50 536.00 466.00 81.50 4.50 3901.50
1979 15.00 12.00 151.00 182.00 457.00 591.00 755.00 660.50 654.50 390.60 a 85.50 35.50 3989.60
1980 52.50 101.00 75.43 a 225.50 330.00 402.00 750.50 682.00 564.00 437.00 127.50 69.00 3816.43
1981 45.50 94.50 93.00 246.00 387.00 649.50 774.50 738.00 585.50 276.00 164.00 48.50 4102.00
1982 2.00 77.50 42.00 169.50 433.00 510.50 682.00 701.50 528.00 323.00 45.50 19.50 3534.00
1983 19.00 59.50 76.00 101.50 402.00 529.00 627.00 719.00 645.00 0.00 z 78.00 46.50 3302.50
1984 63.50 42.50 177.50 146.50 442.00 541.50 887.50 736.00 657.00 252.50 42.00 10.00 3998.50
1985 3.50 0.00 z 76.00 0.00 z 339.00 691.00 843.00 677.00 476.50 339.50 0.00 z 12.00 3457.50
1986 46.00 117.50 235.00 210.50 360.00 600.00 744.00 799.50 440.50 397.00 115.00 4.50 4069.50
1987 13.00 50.00 92.50 323.00 496.50 659.00 600.50 785.00 617.50 472.50 90.50 34.50 4234.50
1988 22.00 108.50 145.00 210.50 304.50 496.50 814.50 731.00 600.00 459.00 89.00 32.00 4012.50
1989 16.00 27.50 113.50 339.00 339.50 530.00 627.50 0.00 z 523.50 297.00 101.00 14.00 2928.50
1990 16.50 45.00 147.00 306.00 307.00 510.50 756.00 708.50 565.00 384.00 64.00 1.50 3811.00
1991 15.00 116.00 46.50 123.50 269.50 458.00 785.00 646.00 707.50 513.50 122.50 1.50 3804.50
1992 8.00 103.00 144.00 296.50 557.50 576.00 700.50 762.00 599.00 424.50 104.50 3.00 4278.50
1993 9.50 25.50 178.00 152.00 339.50 495.00 651.00 668.00 569.50 401.00 64.00 13.00 3566.00
1994 15.00 19.00 173.50 204.00 353.50 508.00 768.00 648.00 578.50 299.00 9.00 0.00 3575.50
1995 47.50 126.00 57.50 137.50 269.50 458.00 686.50 698.00 566.50 371.00 193.00 65.00 3676.00
1996 21.00 112.00 169.00 228.50 374.00 557.00 839.50 750.50 542.00 332.50 106.50 29.00 4061.50
1997 38.50 30.00 173.00 210.50 489.50 483.50 717.50 660.00 557.00 282.50 115.50 12.50 3770.00
1998 37.00 9.00 116.50 170.00 175.50 488.50 725.00 777.00 609.50 256.00 39.50 11.50 3415.00
1999 7.00 2.50 20.00 197.00 298.50 489.50 613.00 650.00 0.00 z 382.50 129.50 8.00 2797.50
2000 14.50 40.00 127.62 a 243.50 364.77 a 643.50 618.00 670.00 561.00 310.00 55.00 7.50 3655.38
2001 0.52 a 17.00 185.50 117.93 a 554.50 515.00 693.50 0.00 z 583.00 451.05 a 121.50 14.50 3254.00
2002 19.12 a 82.50 101.00 220.34 a 331.50 543.00 750.50 0.00 z 564.50 309.00 109.50 19.50 3050.46
2003 84.50 34.50 118.00 59.50 346.50 562.50 785.50 651.50 615.00 422.50 30.00 19.50 3729.50
2004 17.00 9.50 273.00 0.00 z 364.00 509.50 730.00 685.00 536.50 295.50 52.50 23.00 3495.50
2005 23.00 47.50 160.50 128.50 0.00 z 409.00 796.00 730.50 468.50 313.00 111.00 59.00 3246.50
2006 19.00 62.50 2.50 169.00 425.50 601.00 854.50 686.50 563.00 283.00 109.50 22.50 3798.50
2007 1.00 40.50 216.00 189.50 390.50 509.50 688.50 671.00 473.79 a 240.52 b 111.00 11.00 3542.81
2008 1.50 34.00 35.50 j 155.00 376.00 517.00 715.00 716.50 544.00 334.36 c 130.96 d 2.77 c 3527.09
2009 22.00 23.50 74.50 178.50 447.43 a 530.50 749.50 679.00 628.85 d 268.50 61.00 0.00 z 3663.28
2010 14.00 f 46.00 80.00 84.50 f 177.00 366.00 i 696.00 630.00 547.50 b 0.00 z 101.00 37.00 2314.50
2011 29.21 e 13.00 g 41.73 e 151.15 d 178.00 g 461.25 b 681.47 b 695.50 493.50 g 336.57 c 34.66 a 5.00 g 2431.54
2012 9.54 e 42.43 b 26.50 f 188.08 d 0.00 z 303.00 h 539.50 f 407.50 n 355.50 l 315.50 g 109.44 c 10.73 e 360.22
2013 3.00 f 15.00 f 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
Period of Record Statistics
MEAN 19.05 48.07 103.37 184.82 346.13 520.31 716.78 688.59 539.20 328.61 91.74 20.29 3615.54
S.D. 17.33 35.15 61.61 72.73 88.94 75.38 69.82 58.05 82.91 76.75 44.73 17.98 366.02
SKEW 1.15 0.91 0.68 0.07 -0.07 0.20 -0.13 0.27 -0.36 -0.01 0.72 1.20 -0.54
MAX 84.50 170.50 317.50 349.00 557.50 720.50 887.50 869.50 707.50 513.50 239.00 79.50 4294.00
MIN 0.00 0.50 2.50 5.50 151.50 328.45 560.00 539.00 290.00 108.00 9.00 0.00 2344.22
NO YRS 119 118 118 117 117 116 118 115 117 117 116 117 102