PETALUMA FIRE STN 3, CALIFORNIA

Monthly Total Growing Degree Days

(046826)

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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 826.67 a 836.00 747.00 645.00 398.50 142.00 3595.17
1949 74.50 235.50 439.50 522.00 631.00 772.50 793.71 b 789.43 b 833.50 611.50 515.50 192.00 6410.64
1950 164.00 287.50 362.00 521.50 594.00 697.50 821.50 888.50 802.50 696.00 554.00 378.50 6767.50
1951 251.00 277.50 407.00 431.00 608.00 675.50 781.00 817.50 753.50 677.00 438.50 216.00 6333.50
1952 171.00 295.00 346.50 492.00 636.50 642.50 844.50 800.50 853.50 687.00 337.50 293.50 6400.00
1953 372.50 320.50 381.00 418.50 528.00 663.00 841.00 807.50 835.00 680.00 325.50 h 298.67 e 6145.67
1954 260.52 e 288.00 291.50 492.00 591.50 694.00 872.50 764.50 751.50 655.50 428.00 183.50 6273.02
1955 146.50 233.50 330.50 311.50 603.50 653.00 776.00 814.50 767.50 653.07 a 396.50 325.50 6011.57
1956 268.00 222.50 353.50 424.00 584.00 731.50 780.00 808.50 792.00 583.00 402.00 171.00 6120.00
1957 125.00 333.50 413.00 498.00 596.50 787.50 860.50 813.00 848.50 633.00 350.00 222.50 6481.00
1958 239.50 386.50 295.00 488.50 657.50 786.50 863.50 952.73 a 921.50 762.50 466.50 378.50 7198.73
1959 329.50 262.00 458.80 a 533.89 c 606.50 789.50 904.00 858.00 805.00 753.30 a 437.00 246.50 6983.99
1960 236.50 326.50 449.50 464.00 581.50 858.00 832.00 812.50 777.00 684.00 377.50 230.00 6629.00
1961 177.00 331.50 335.00 450.00 477.00 776.50 910.00 908.50 814.50 695.50 390.50 195.00 6461.00
1962 203.00 260.50 309.50 508.00 536.00 712.50 792.50 864.50 767.00 661.50 479.00 273.00 6367.00
1963 123.50 448.00 332.50 364.50 568.00 685.50 786.00 832.50 870.50 673.50 383.00 121.00 6188.50
1964 177.50 295.00 326.50 420.50 498.50 666.00 812.50 837.50 779.50 731.00 342.50 327.00 6214.00
1965 242.50 282.50 371.00 464.00 533.20 a 617.50 787.00 889.50 734.50 768.00 465.00 112.00 6266.70
1966 243.50 233.50 384.00 552.00 602.50 748.50 767.50 847.50 801.00 679.00 424.00 241.00 6524.00
1967 257.50 260.00 336.50 247.00 590.00 642.50 852.00 0.00 z 866.50 725.00 489.50 210.00 5476.50
1968 172.00 428.50 442.50 496.00 575.50 761.50 846.00 853.00 817.00 624.00 384.00 191.00 6591.00
1969 165.00 200.50 364.00 415.00 669.50 701.50 848.50 899.50 833.79 a 656.00 409.50 349.86 c 6512.65
1970 344.00 355.00 482.00 385.50 684.00 714.00 842.50 827.00 833.00 595.50 468.50 192.00 6723.00
1971 216.00 254.50 337.00 396.50 551.00 696.00 826.50 925.50 861.00 592.50 388.00 162.50 6207.00
1972 117.00 341.50 501.50 477.00 620.00 722.50 868.00 875.00 746.50 661.50 339.00 162.50 6432.00
1973 215.00 343.00 340.00 530.00 659.00 830.50 854.50 767.50 773.00 659.00 407.50 294.50 6673.50
1974 282.00 269.00 426.00 475.00 567.50 745.00 852.00 873.00 819.00 719.00 405.50 240.00 6673.00
1975 184.50 281.50 389.00 342.50 645.00 698.00 820.50 837.00 771.00 614.00 331.00 264.50 6178.50
1976 227.00 319.50 334.00 418.50 675.00 798.00 849.00 857.50 797.00 707.00 497.00 200.00 6679.50
1977 153.00 348.00 318.50 523.00 514.00 751.00 829.50 849.00 762.00 659.50 447.50 328.00 6483.00
1978 341.50 343.50 513.50 455.00 686.00 711.50 834.00 851.50 823.50 721.00 342.00 123.48 a 6746.48
1979 202.00 243.00 424.00 466.00 678.00 719.50 871.50 817.00 902.00 687.50 382.00 260.00 6652.50
1980 259.00 389.50 390.50 487.50 557.00 675.50 855.00 786.50 786.50 698.00 438.50 263.00 6586.50
1981 282.50 359.50 390.60 a 515.00 646.00 884.00 816.00 843.00 758.50 584.00 468.50 334.00 6881.60
1982 124.50 328.00 335.50 492.50 620.00 626.00 807.00 813.50 782.00 632.00 275.00 177.00 6013.00
1983 0.00 z 324.00 389.00 409.00 580.50 716.00 856.50 907.50 869.00 751.50 391.50 329.50 6524.00
1984 259.50 279.50 502.50 463.50 735.50 732.00 956.50 882.50 893.00 606.00 353.00 180.50 6844.00
1985 123.50 314.00 330.00 583.50 562.00 821.50 892.00 811.50 710.50 643.50 295.00 143.50 6230.50
1986 354.00 409.50 534.00 494.00 622.00 768.50 843.00 828.00 660.50 684.00 454.50 234.50 6886.50
1987 215.00 329.00 413.50 589.50 755.50 778.50 785.00 849.00 807.50 764.00 418.00 243.00 6947.50
1988 254.50 374.00 519.50 536.50 620.50 757.50 914.00 860.00 767.50 675.50 415.00 245.50 6940.00
1989 165.00 201.50 422.00 605.00 639.00 715.00 862.50 843.50 755.50 631.50 422.50 182.00 6445.00
1990 238.50 209.00 421.50 607.00 642.00 764.50 879.00 0.00 z 842.00 0.00 z 0.00 z 0.00 z 4603.50
1991 264.50 428.50 338.50 476.50 577.50 676.50 362.50 r 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2762.00
1992 187.50 398.50 475.50 540.00 a 708.50 716.00 824.50 831.00 768.00 737.50 446.50 182.50 6816.00
1993 194.00 263.00 482.00 463.00 626.50 772.00 816.00 865.50 752.50 683.50 357.00 188.50 6463.50
1994 266.50 222.50 445.00 454.50 574.50 695.50 752.50 802.50 747.00 625.50 242.00 164.50 5992.50
1995 367.00 387.00 379.00 423.50 526.50 676.50 843.50 844.00 757.00 702.50 539.50 342.50 6788.50
1996 277.50 408.00 464.00 523.50 617.50 728.00 829.50 829.50 750.00 659.50 454.50 350.00 6891.50
1997 305.00 319.50 474.50 531.50 749.00 753.50 850.50 885.00 883.50 686.00 512.00 296.00 7246.00
1998 367.00 313.00 387.50 344.50 289.50 n 683.00 838.50 888.50 424.00 m 657.00 397.50 209.00 5085.50
1999 235.37 d 265.00 319.50 465.00 529.00 0.00 z 776.50 825.50 790.50 742.00 476.50 297.00 5721.87
2000 316.50 374.50 0.00 z 538.00 480.00 g 743.00 759.00 818.50 817.00 626.20 a 338.50 300.00 5631.20
2001 223.50 0.00 z 479.00 394.50 746.50 785.50 800.50 814.86 c 777.93 a 750.00 450.50 290.00 6512.79
2002 203.00 321.50 367.00 499.00 589.00 765.50 877.50 837.50 816.50 647.50 471.00 305.50 6700.50
2003 372.50 289.50 454.50 374.50 612.00 750.00 876.00 868.50 821.50 736.50 327.00 293.50 6776.00
2004 255.50 272.00 588.00 565.50 657.50 741.50 847.50 916.50 851.00 623.50 368.00 273.00 6959.50
2005 184.50 343.50 480.00 443.00 630.50 695.50 692.00 f 827.00 712.50 657.50 442.00 320.50 5736.50
2006 295.50 291.50 278.00 467.00 636.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1968.50
Period of Record Statistics
MEAN 232.87 310.91 400.97 470.16 612.66 729.82 835.81 844.64 798.89 674.21 411.46 244.12 6565.76
S.D. 72.36 60.96 70.41 71.63 62.22 55.74 41.28 39.11 51.76 48.82 64.56 70.04 308.44
SKEW 0.16 0.23 0.41 -0.56 0.29 0.35 0.22 0.45 0.11 0.15 -0.18 0.05 0.04
MAX 372.50 448.00 588.00 607.00 755.50 884.00 956.50 952.73 921.50 768.00 554.00 378.50 7246.00
MIN 74.50 200.50 278.00 247.00 477.00 617.50 752.50 764.50 660.50 583.00 242.00 112.00 5992.50
NO YRS 57 57 57 58 56 56 56 55 56 56 55 56 47