PETALUMA FIRE STN 3, CALIFORNIA

Monthly Total Growing Degree Days

(046826)

Base Temperature = 50 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 516.67 a 526.00 447.00 340.50 119.00 2.00 1951.17
1949 0.00 38.50 131.00 222.00 321.00 472.50 483.71 b 479.43 b 533.50 301.50 215.50 22.00 3220.64
1950 36.50 55.00 79.00 221.50 288.50 397.50 511.50 578.50 502.50 386.00 254.00 96.00 3406.50
1951 24.00 63.00 125.50 131.00 298.00 375.50 471.00 507.50 453.50 367.00 151.50 27.50 2995.00
1952 11.00 51.50 91.50 192.50 326.50 342.50 534.50 490.50 553.50 377.00 94.00 36.50 3101.50
1953 96.00 57.50 92.50 133.50 218.50 363.00 531.00 497.50 535.00 370.00 107.50 h 36.96 e 2931.46
1954 29.81 e 54.00 34.00 196.00 281.50 394.00 562.50 454.50 451.50 345.50 139.50 23.50 2966.31
1955 3.50 28.00 64.00 42.00 293.50 353.00 466.00 504.50 467.50 343.07 a 136.00 73.00 2774.07
1956 25.50 23.50 66.00 131.50 274.00 431.50 470.00 498.50 492.00 276.00 120.00 22.50 2831.00
1957 3.50 103.50 116.50 200.00 286.50 487.50 550.50 503.00 548.50 323.00 70.00 20.50 3213.00
1958 25.00 121.50 31.00 190.50 347.50 486.50 553.50 642.73 a 621.50 452.50 186.50 85.00 3743.73
1959 60.50 39.00 153.45 a 233.89 c 296.50 489.50 594.00 548.00 505.00 443.30 a 140.50 28.00 3531.64
1960 29.50 53.50 147.50 181.00 271.50 558.00 522.00 502.50 477.00 374.00 97.00 27.00 3240.50
1961 24.00 69.00 48.50 166.00 167.00 476.50 600.00 598.50 514.50 385.50 109.50 25.00 3184.00
1962 34.50 42.50 35.00 209.50 226.00 412.50 482.50 554.50 467.00 351.50 181.00 49.50 3046.00
1963 11.00 168.00 52.00 92.00 258.00 385.50 476.00 522.50 570.50 363.50 103.50 1.50 3004.00
1964 7.50 44.00 70.50 131.00 193.00 366.00 502.50 527.50 479.50 421.00 90.50 98.50 2931.50
1965 19.00 29.00 77.00 178.50 223.20 a 317.50 477.00 579.50 434.50 458.00 182.00 0.00 2975.20
1966 38.50 23.50 116.00 252.00 292.50 448.50 457.50 537.50 501.00 369.00 151.00 32.00 3219.00
1967 36.00 19.50 67.00 5.00 281.00 342.50 542.00 0.00 z 566.50 415.00 211.50 39.00 2525.00
1968 8.50 157.00 137.50 198.00 265.50 461.50 536.00 543.00 517.00 314.00 108.00 13.50 3259.50
1969 22.00 16.50 102.50 122.00 359.50 401.50 538.50 589.50 533.79 a 346.00 124.00 78.61 c 3234.40
1970 94.50 79.50 182.00 98.50 374.00 414.00 532.50 517.00 533.00 285.50 170.50 26.50 3307.50
1971 23.00 35.50 71.00 107.00 241.00 396.00 516.50 615.50 561.00 285.50 98.00 3.50 2953.50
1972 7.00 81.50 198.00 178.50 310.00 422.50 558.00 565.00 446.50 351.50 68.50 25.50 3212.50
1973 26.00 74.00 58.50 230.00 349.00 530.50 544.50 457.50 473.00 349.00 130.50 26.50 3249.00
1974 75.50 22.50 135.00 175.00 258.00 445.00 542.00 563.00 519.00 409.00 115.00 23.50 3282.50
1975 4.50 44.50 94.50 75.00 337.50 398.00 510.50 527.00 471.00 304.00 69.50 31.50 2867.50
1976 10.50 64.00 68.50 125.00 365.00 498.00 539.00 547.50 497.00 397.00 212.50 9.50 3333.50
1977 5.50 84.00 49.50 230.00 204.50 451.00 519.50 539.00 462.00 349.50 163.50 61.50 3119.50
1978 57.50 81.50 203.50 156.00 376.00 411.50 524.00 541.50 523.50 411.00 92.00 6.20 a 3384.20
1979 13.00 15.50 123.50 169.00 368.00 419.50 561.50 507.00 602.00 377.50 107.00 32.00 3295.50
1980 40.00 107.50 91.00 188.00 247.00 375.50 545.00 476.50 486.50 388.00 141.00 30.50 3116.50
1981 38.00 93.00 94.03 a 216.00 336.00 584.00 506.00 533.00 458.50 274.00 178.00 57.00 3367.53
1982 2.00 92.00 60.00 206.00 310.00 326.00 497.00 503.50 482.00 322.00 43.50 13.00 2857.00
1983 0.00 z 56.00 95.00 117.00 270.50 416.00 546.50 597.50 569.00 441.50 118.00 69.50 3296.50
1984 42.50 26.00 195.00 164.50 425.50 432.00 646.50 572.50 593.00 302.00 81.50 16.00 3497.00
1985 1.00 96.50 66.00 283.50 256.00 521.50 582.00 501.50 410.50 335.50 95.00 27.00 3176.00
1986 76.50 147.00 229.00 194.50 313.00 468.50 533.00 518.00 360.50 374.00 166.50 19.00 3399.50
1987 16.00 78.50 119.50 289.50 445.50 478.50 475.00 539.00 507.50 454.00 137.50 53.00 3593.50
1988 20.50 112.50 209.50 236.50 313.00 457.50 604.00 550.00 467.50 365.50 124.50 45.00 3506.00
1989 5.50 32.50 138.00 306.00 329.00 415.00 552.50 533.50 455.50 321.50 132.00 13.50 3234.50
1990 24.00 41.00 128.00 307.00 332.00 464.50 569.00 0.00 z 542.00 0.00 z 0.00 z 0.00 z 2407.50
1991 42.00 151.50 60.50 176.50 267.50 376.50 232.50 r 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1074.50
1992 8.00 118.50 165.50 240.00 a 398.50 416.00 514.50 521.00 468.00 427.50 155.50 16.00 3449.00
1993 13.00 39.50 174.50 163.00 317.00 472.00 506.00 555.50 452.50 373.50 94.50 22.00 3183.00
1994 20.50 19.50 147.00 156.00 264.50 395.50 442.50 492.50 447.00 315.50 25.00 2.00 2727.50
1995 84.00 128.50 89.50 130.50 216.50 376.50 533.50 534.00 457.00 392.50 239.50 64.50 3246.50
1996 25.50 152.00 165.00 228.50 307.50 428.00 519.50 519.50 450.00 349.50 154.50 83.00 3382.50
1997 65.50 58.50 174.50 231.50 439.00 453.50 540.50 575.00 583.50 376.00 213.00 37.50 3748.00
1998 81.50 51.50 94.00 99.00 119.50 n 383.00 528.50 578.50 254.00 m 347.00 99.00 23.50 2285.50
1999 31.00 d 38.00 41.00 181.00 219.00 0.00 z 466.50 515.50 490.50 432.00 180.00 37.00 2631.50
2000 53.00 100.00 0.00 z 238.00 240.00 g 443.00 449.00 508.50 517.00 316.20 a 82.50 33.50 2740.70
2001 8.00 0.00 z 175.50 110.00 436.50 485.50 490.50 504.86 c 477.93 a 440.00 169.50 27.50 3325.79
2002 21.50 72.50 92.00 205.00 279.00 465.50 567.50 527.50 516.50 337.50 172.00 41.00 3297.50
2003 97.50 47.50 147.00 85.50 302.00 450.00 566.00 558.50 521.50 426.50 68.50 48.00 3318.50
2004 23.50 24.00 278.00 265.50 347.50 441.50 537.50 606.50 551.00 314.50 92.50 45.50 3527.50
2005 6.00 72.50 172.50 146.00 320.50 395.50 442.00 f 517.00 412.50 347.50 158.50 85.00 2633.50
2006 30.00 67.50 23.50 168.00 326.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 615.50
Period of Record Statistics
MEAN 30.51 67.79 113.10 177.69 303.06 429.82 525.81 534.64 498.89 364.57 133.34 35.60 3223.62
S.D. 26.18 39.91 56.47 62.79 61.99 55.75 41.28 39.10 51.76 48.39 49.16 24.78 236.87
SKEW 1.15 0.82 0.59 -0.23 0.29 0.35 0.22 0.45 0.11 0.16 0.30 0.89 -0.01
MAX 97.50 168.00 278.00 307.00 445.50 584.00 646.50 642.73 621.50 458.00 254.00 98.50 3748.00
MIN 0.00 15.50 23.50 5.00 167.00 317.50 442.50 454.50 360.50 274.00 25.00 0.00 2727.50
NO YRS 57 57 57 58 56 56 56 55 56 56 55 56 47