SANTA ROSA, CALIFORNIA

Monthly Total Growing Degree Days

(047965)

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
1931 250.38 e 381.00 473.00 531.00 745.50 766.00 939.50 816.50 697.50 605.50 352.50 185.00 6743.38
1932 193.00 265.00 482.00 417.50 593.50 718.50 792.00 781.00 791.00 626.50 513.50 142.50 6316.00
1933 105.00 202.00 408.00 442.50 470.00 646.50 822.00 795.50 716.00 738.00 452.50 217.50 6015.50
1934 276.50 363.50 588.00 561.00 653.00 713.00 780.00 822.00 768.00 635.00 437.00 280.50 6877.50
1935 202.00 294.50 315.50 533.50 648.50 818.50 820.50 851.00 751.00 631.00 322.50 235.08 a 6423.58
1936 328.50 305.00 499.50 535.50 717.50 784.50 934.50 880.50 839.50 729.00 414.00 231.50 7199.50
1937 52.50 227.00 430.50 440.50 668.00 765.00 867.50 858.50 790.00 736.00 466.00 381.00 6682.50
1938 293.50 321.00 367.50 432.00 547.50 718.00 774.00 820.00 812.50 652.00 350.50 348.00 6436.50
1939 269.00 265.50 417.00 564.00 672.00 733.50 846.50 830.50 871.00 708.00 444.50 353.50 6975.00
1940 320.50 374.50 491.00 550.50 640.50 764.00 804.00 821.00 735.00 637.50 369.00 354.00 6861.50
1941 318.00 344.00 478.00 437.00 664.00 728.50 851.50 823.00 767.50 641.50 445.00 289.00 6787.00
1942 256.50 280.50 405.50 473.50 565.50 736.00 859.50 812.00 730.50 680.00 415.00 273.50 6488.00
1943 269.50 331.50 454.50 503.00 695.50 661.00 805.50 808.50 826.50 649.00 460.00 290.00 6754.50
1944 228.50 275.50 439.50 394.00 600.00 671.50 747.50 818.00 808.00 679.50 353.79 a 258.00 6273.79
1945 194.50 350.50 304.00 526.00 545.50 802.50 840.00 818.00 801.50 665.50 402.50 255.50 6506.00
1946 186.50 180.50 364.50 445.00 559.00 699.50 850.50 783.00 768.00 578.50 317.50 205.50 5938.00
1947 113.00 310.50 439.00 559.50 665.50 773.50 813.00 810.00 794.50 634.00 315.50 175.00 6403.00
1948 246.50 205.50 276.00 366.00 506.50 690.00 779.50 796.00 726.50 628.50 364.00 117.00 5702.00
1949 41.50 157.00 369.00 524.00 596.50 754.50 768.50 765.00 786.00 570.00 465.50 153.50 5951.00
1950 137.43 a 254.50 334.00 493.00 587.00 674.50 807.00 883.50 782.00 637.00 505.00 336.50 6431.43
1951 205.00 247.00 389.50 409.00 620.50 669.00 780.50 802.50 745.50 641.50 393.50 198.50 6102.00
1952 146.00 287.50 273.00 473.50 636.00 607.50 827.18 a 802.00 818.50 676.00 312.50 228.50 6088.18
1953 306.50 292.50 330.00 410.00 507.00 662.50 848.00 791.00 824.50 614.00 272.00 j 263.50 5849.50
1954 204.00 274.00 286.00 515.50 623.50 741.00 869.50 763.00 748.00 632.00 349.00 124.50 6130.00
1955 99.00 213.00 348.50 347.50 627.50 677.00 822.50 805.00 757.00 630.00 343.00 285.50 5955.50
1956 232.00 176.00 349.00 444.00 606.00 768.50 792.50 828.50 772.00 568.50 381.50 167.00 6085.50
1957 106.00 285.50 370.50 511.00 589.00 842.00 856.50 830.50 809.00 589.50 333.50 201.50 6324.50
1958 200.50 375.50 283.00 501.50 654.00 778.00 829.50 908.50 890.00 738.00 448.50 367.00 6974.00
1959 286.50 237.50 477.00 560.50 637.50 842.00 893.00 827.50 775.50 750.00 415.00 249.50 6951.50
1960 211.00 296.50 404.50 469.50 612.50 832.24 a 841.13 a 809.00 750.50 636.07 d 337.50 228.50 6428.95
1961 157.00 308.50 331.50 495.50 540.50 796.00 919.00 868.50 746.00 646.00 348.00 179.36 c 6335.86
1962 186.50 237.00 273.50 537.32 b 583.50 735.00 764.00 857.50 737.50 618.00 425.00 231.00 6185.82
1963 99.00 434.50 326.50 345.00 584.50 702.50 806.00 860.00 851.00 638.50 340.00 99.50 6087.00
1964 140.50 276.50 307.50 448.00 531.50 707.00 843.50 875.50 787.00 736.50 325.00 296.00 6274.50
1965 219.50 258.50 378.00 455.50 608.50 618.00 787.50 900.50 0.00 z 744.00 404.00 95.50 5469.50
1966 190.00 200.50 353.00 570.50 618.50 809.50 794.00 868.00 809.50 696.50 430.50 262.50 6603.00
1967 275.50 296.50 360.00 288.00 650.00 684.50 878.00 909.00 905.00 760.50 518.00 226.00 6751.00
1968 187.00 454.50 472.00 543.00 633.50 825.00 891.50 885.50 850.50 638.50 406.00 195.00 6982.00
1969 159.50 218.50 401.50 458.50 695.00 739.00 870.50 949.50 847.00 660.50 424.00 360.00 6783.50
1970 334.50 385.00 507.00 426.50 730.50 729.00 843.50 836.00 856.00 604.00 459.50 213.00 6924.50
1971 266.50 300.50 384.50 422.50 586.50 756.00 857.50 944.00 859.00 585.00 382.50 149.00 6493.50
1972 142.50 357.00 529.50 484.00 652.50 753.50 901.50 880.50 746.00 638.50 344.50 163.50 6593.50
1973 214.00 359.50 342.00 557.50 695.00 879.00 864.00 789.00 792.00 668.50 375.00 298.50 6834.00
1974 255.50 266.00 418.00 482.50 622.00 767.00 895.00 881.50 834.50 711.00 391.00 234.50 6758.50
1975 202.00 292.00 387.50 343.00 691.00 730.50 853.00 855.50 787.00 605.50 325.50 279.50 6352.00
1976 251.50 314.50 366.50 453.50 701.00 837.00 899.50 862.50 804.00 737.00 515.00 242.00 6984.00
1977 209.50 383.00 352.50 573.50 577.00 817.50 904.00 924.50 812.50 690.50 453.00 373.00 7070.50
1978 339.00 351.50 0.00 z 460.50 765.50 801.00 879.50 886.27 c 889.50 800.32 a 0.00 z 193.23 a 6366.32
1979 223.20 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 867.00 827.91 b 921.00 701.00 380.00 296.57 a 4216.68
1980 284.00 403.00 416.00 481.50 566.50 675.00 822.50 758.47 a 748.50 702.00 444.00 260.50 6561.97
1981 266.00 359.00 392.00 538.00 694.50 958.00 824.50 871.50 765.00 599.85 a 471.00 308.40 b 7047.75
1982 133.00 318.23 b 336.50 457.50 634.00 631.00 843.00 879.00 821.00 685.00 317.50 235.00 6290.73
1983 221.50 346.00 396.50 418.00 626.50 798.00 904.00 927.00 905.00 778.00 377.00 330.50 7028.00
1984 310.00 289.00 529.50 478.00 775.00 762.50 895.50 847.50 944.00 610.00 342.50 178.00 6961.50
1985 98.50 305.00 282.00 539.50 513.50 757.00 788.00 716.50 642.50 600.88 a 257.50 115.00 5615.88
1986 287.50 329.50 441.00 419.50 554.00 670.50 723.50 668.00 610.50 599.00 420.00 173.50 5896.50
1987 178.50 277.50 341.00 516.00 636.00 649.50 682.00 689.50 691.00 768.00 436.00 234.50 i 5865.00
1988 287.50 419.50 533.00 542.00 651.50 769.00 926.00 827.00 782.00 707.50 442.50 285.00 7172.50
1989 223.00 217.50 432.50 604.50 648.00 748.50 880.50 808.00 724.50 663.50 468.50 244.00 6663.00
1990 274.00 232.00 413.00 602.00 628.00 805.50 825.00 873.50 850.50 768.00 445.50 179.50 6896.50
1991 284.50 427.00 324.50 476.00 576.50 665.50 786.50 789.50 789.00 794.50 516.50 270.50 6700.50
1992 199.50 433.00 482.00 612.00 743.00 721.00 842.50 864.50 822.00 787.00 482.00 230.50 7219.00
1993 222.00 279.50 519.00 518.00 688.00 875.50 867.50 911.50 799.50 731.00 407.50 216.00 7035.00
1994 292.50 265.00 497.50 523.50 637.50 774.00 757.00 878.50 792.50 698.50 275.50 192.00 6584.00
1995 371.50 409.50 414.00 497.50 578.50 736.50 900.50 890.50 824.50 770.00 574.50 382.00 7349.50
1996 317.00 403.00 502.00 575.50 694.00 806.50 855.50 906.50 757.00 722.50 472.50 377.00 7389.00
1997 315.50 370.50 529.00 597.50 787.50 833.00 867.50 879.00 906.00 707.00 524.50 319.50 7636.50
1998 357.00 312.50 464.50 0.00 z 537.00 700.00 849.50 946.00 838.00 692.00 404.50 236.00 6337.00
1999 234.50 264.50 324.00 511.00 595.00 709.50 800.00 860.00 794.50 754.00 492.00 318.00 6657.00
2000 348.50 370.00 480.00 0.00 z 0.00 z 773.00 772.50 853.50 850.34 a 643.00 342.50 302.00 5735.34
2001 236.50 297.50 0.00 z 0.00 z 0.00 z 866.50 797.50 856.50 757.50 758.50 469.50 313.00 5353.00
2002 231.50 345.50 395.00 507.00 609.00 800.00 849.50 829.00 829.00 678.50 515.00 334.00 6923.00
2003 391.00 310.50 462.62 e 361.50 629.50 769.66 a 862.50 872.00 847.50 764.00 331.00 281.50 6883.27
2004 262.50 308.00 605.00 557.00 647.00 761.50 805.00 887.50 875.00 638.50 382.50 296.00 7025.50
2005 217.50 363.00 501.50 451.00 620.00 690.50 872.50 807.50 719.50 678.50 446.50 309.50 6677.50
2006 303.50 313.00 269.50 458.00 637.00 782.07 a 568.00 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2763.07
Period of Record Statistics
MEAN 230.01 307.15 405.77 485.53 627.78 749.53 837.10 841.61 796.95 676.23 408.01 249.60 6612.43
S.D. 75.66 66.60 80.60 68.98 64.97 66.92 50.38 54.35 61.65 60.67 67.07 72.50 426.26
SKEW -0.29 0.04 0.24 -0.45 0.16 0.26 -0.35 -0.56 -0.17 0.24 0.10 -0.09 -0.16
MAX 391.00 454.50 605.00 612.00 787.50 958.00 939.50 949.50 944.00 800.32 574.50 382.00 7636.50
MIN 41.50 157.00 269.50 288.00 470.00 607.50 682.00 668.00 610.50 568.50 257.50 95.50 5615.88
NO YRS 76 75 73 72 73 75 75 75 74 75 73 74 67