GRATON, CALIFORNIA

Monthly Total Growing Degree Days

(043578)

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 431.50 444.00 364.50 245.00 72.50 5.00 1562.50
1949 0.00 14.50 50.00 179.50 248.00 416.00 427.50 441.50 433.50 235.00 147.00 5.00 2597.50
1950 15.00 32.50 50.00 175.50 250.50 349.00 449.50 517.50 424.00 283.50 191.00 51.00 2789.00
1951 12.00 33.00 88.50 91.50 270.00 304.00 427.50 400.86 b 276.00 f 281.50 93.00 19.00 2020.86
1952 7.50 33.50 75.50 147.50 291.50 291.00 475.50 451.50 432.00 275.50 63.00 13.50 2557.50
1953 58.00 34.50 61.00 110.00 178.00 339.00 507.00 454.00 430.50 249.00 101.00 25.50 2547.50
1954 9.50 43.50 20.00 188.50 284.00 393.50 510.00 387.50 354.50 231.00 62.00 14.50 m 2484.00
1955 1.00 15.00 72.50 34.00 296.00 344.50 450.50 421.00 398.00 267.50 106.50 52.50 2459.00
1956 16.50 7.00 41.00 126.00 261.50 427.00 424.50 444.00 395.50 209.50 91.50 15.50 2459.50
1957 0.00 66.50 75.00 165.00 259.50 505.50 498.00 457.50 411.50 220.62 a 35.00 13.50 2707.62
1958 13.50 99.50 20.00 182.00 304.00 443.50 457.50 519.50 519.50 316.50 131.50 52.50 3059.50
1959 35.50 29.00 153.00 232.50 277.00 506.50 558.50 509.50 428.50 388.00 94.44 c 8.55 b 3221.00
1960 23.00 30.50 113.00 169.50 277.00 488.50 518.22 a 468.50 378.00 263.00 56.00 24.00 2809.22
1961 18.50 58.50 49.00 180.00 202.50 478.00 593.00 546.00 415.50 297.50 74.00 15.50 2928.00
1962 44.00 24.50 22.50 217.00 243.00 379.00 420.50 509.00 352.50 262.00 112.50 31.00 2617.50
1963 3.50 140.50 34.50 67.50 264.50 365.00 467.50 512.00 470.50 283.50 69.50 2.50 2681.00
1964 2.50 36.25 a 46.50 118.50 186.50 398.50 519.00 537.00 444.00 376.00 59.00 77.50 2801.25
1965 3.50 8.50 46.00 165.00 251.00 283.00 434.00 524.50 307.50 365.00 118.00 0.00 2506.00
1966 23.00 11.00 81.50 227.50 262.00 480.50 447.50 493.50 444.50 299.00 110.50 25.50 2906.00
1967 29.50 30.50 40.00 3.50 285.00 345.50 496.50 481.50 515.19 d 376.00 187.50 35.50 2826.19
1968 11.76 b 120.00 101.50 153.00 255.50 459.83 a 159.50 u 498.50 470.50 276.50 78.00 5.50 2430.59
1969 14.00 11.50 87.00 117.00 336.00 400.50 472.50 522.50 451.00 264.50 106.00 62.50 2845.00
1970 67.00 43.00 119.50 103.50 355.00 375.00 461.00 432.00 453.00 213.00 121.00 17.00 2760.00
1971 20.50 31.50 49.50 86.50 214.50 404.50 486.00 557.00 480.00 208.50 56.00 0.00 2594.50
1972 2.50 52.00 166.50 137.50 292.00 382.50 526.50 501.50 347.50 271.50 34.50 13.00 2727.50
1973 17.00 42.00 31.50 191.50 307.00 482.50 489.50 408.00 416.00 268.50 93.50 19.50 2766.50
1974 28.00 2.00 77.50 115.00 255.50 391.00 513.00 497.00 444.00 318.50 47.00 4.50 2693.00
1975 2.50 18.50 44.00 48.00 310.00 346.50 446.00 459.50 397.50 201.50 40.50 17.50 2332.00
1976 4.50 30.00 55.00 91.50 320.50 445.50 522.50 472.50 429.00 331.50 178.00 2.50 2883.00
1977 0.50 62.00 38.50 198.00 212.00 451.00 520.50 563.50 429.50 304.00 103.00 41.50 2924.00
1978 35.00 56.00 193.50 138.50 404.50 439.00 495.50 523.50 499.50 382.50 69.00 3.00 3239.50
1979 7.00 8.50 79.50 170.50 351.00 417.00 545.50 510.00 561.50 344.50 55.50 18.50 3069.00
1980 40.50 73.00 61.00 157.50 272.00 372.00 486.50 414.00 392.50 336.00 94.50 20.00 2719.50
1981 25.50 66.00 57.50 200.00 359.50 607.00 462.50 510.00 405.50 219.50 148.00 39.00 3100.00
1982 0.00 65.50 26.50 136.00 304.50 319.50 469.00 538.50 476.00 293.50 39.50 11.50 2680.00
1983 8.50 62.50 81.50 106.50 310.00 465.50 556.00 574.00 542.00 393.50 98.00 47.00 3245.00
1984 37.50 21.00 179.00 135.50 413.50 441.50 563.50 539.50 588.50 248.00 41.00 9.00 3217.50
1985 0.00 71.00 50.00 247.00 264.50 495.50 533.00 444.50 384.00 282.00 80.00 11.00 2862.50
1986 42.00 113.50 189.50 179.00 306.50 433.50 465.50 460.00 313.50 289.00 117.00 2.50 2911.50
1987 4.50 36.50 76.00 237.00 385.50 405.50 451.00 453.00 414.50 402.00 90.00 40.50 2996.00
1988 6.50 86.50 140.50 193.00 269.00 438.00 602.00 479.00 396.50 338.00 105.00 23.50 3077.50
1989 2.50 13.00 92.00 242.50 300.50 429.50 537.00 475.50 369.50 265.00 103.00 5.50 2835.50
1990 13.50 28.00 108.50 246.50 290.00 449.00 513.50 554.00 511.00 355.00 79.00 2.00 3150.00
1991 22.50 100.00 46.00 143.50 238.00 343.00 495.50 476.00 450.50 395.00 149.00 2.50 2861.50
1992 0.00 89.00 138.00 251.00 392.50 405.50 513.50 534.50 463.50 402.00 122.50 6.50 3318.50
1993 4.50 18.00 174.50 162.50 321.00 485.50 505.50 551.50 440.00 353.50 78.50 18.00 3113.00
1994 4.00 9.00 141.00 186.00 306.50 419.00 428.50 522.00 441.50 294.00 13.00 0.50 2765.00
1995 59.50 122.50 83.50 169.50 252.50 409.50 547.00 520.00 477.00 369.00 206.00 62.00 3278.00
1996 24.00 119.50 144.00 203.50 324.00 429.00 521.00 512.00 410.00 321.50 127.00 60.00 3195.50
1997 50.50 61.00 162.50 209.50 424.00 455.00 506.50 526.50 518.00 277.50 135.50 11.50 3338.00
1998 37.00 25.00 112.50 142.00 190.00 357.50 494.00 539.00 462.00 255.50 50.50 8.00 2673.00
1999 16.00 12.50 16.50 169.50 239.00 355.50 446.00 494.50 422.00 322.50 129.00 17.00 2640.00
2000 20.00 40.00 108.00 212.50 339.50 409.50 417.50 483.50 464.50 269.50 52.00 7.50 2824.00
2001 0.00 26.50 161.50 118.00 431.50 496.00 467.00 495.50 407.00 388.50 142.50 15.50 3149.50
2002 15.00 60.50 83.50 191.50 256.50 473.50 508.50 485.00 456.50 292.50 153.50 29.50 3006.00
2003 83.50 37.50 144.00 69.50 295.00 448.00 543.50 535.50 510.00 407.50 47.50 20.50 3142.00
2004 8.50 26.50 261.50 240.00 324.50 468.50 509.00 570.00 521.00 297.00 104.50 35.00 3366.00
2005 1.00 61.50 171.50 159.00 330.00 400.50 530.00 465.00 384.00 313.50 161.00 53.00 3030.00
2006 19.00 56.00 11.00 149.00 322.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 557.00
Period of Record Statistics
MEAN 18.49 47.02 89.73 158.41 292.53 416.57 492.36 493.42 437.19 301.55 96.97 21.69 2885.23
S.D. 18.86 33.55 55.16 55.72 57.33 61.42 44.31 44.93 57.92 56.88 43.26 19.15 255.94
SKEW 1.37 0.98 0.80 -0.48 0.42 0.14 0.22 -0.34 0.22 0.24 0.45 1.04 0.06
MAX 83.50 140.50 261.50 251.00 431.50 607.00 602.00 574.00 588.50 407.50 206.00 77.50 3366.00
MIN 0.00 2.00 11.00 3.50 178.00 283.00 417.50 387.50 307.50 201.50 13.00 0.00 2332.00
NO YRS 58 58 58 58 58 57 57 58 57 58 58 57 54