SANTA ROSA, CALIFORNIA

Monthly Total Growing Degree Days

(047965)

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
1931 32.79 e 108.50 165.50 231.00 435.50 466.00 629.50 506.50 397.50 295.50 114.00 12.50 3394.79
1932 19.00 56.50 172.50 121.00 283.50 418.50 482.00 471.00 491.00 316.50 216.00 8.00 3055.50
1933 3.00 8.00 110.00 155.50 169.00 346.50 512.00 485.50 416.00 428.00 158.00 24.50 2816.00
1934 50.50 98.00 278.00 261.00 343.00 413.00 470.00 512.00 468.00 325.00 143.00 37.50 3399.00
1935 8.00 42.50 59.00 237.00 338.50 518.50 510.50 541.00 451.00 331.50 61.00 22.73 a 3121.23
1936 59.00 74.00 207.00 242.00 407.50 484.50 624.50 570.50 539.50 419.00 117.50 23.00 3768.00
1937 0.00 14.50 134.50 142.00 358.00 465.00 557.50 548.50 490.00 426.00 166.50 86.00 3388.50
1938 30.00 74.50 83.00 133.50 237.50 418.00 464.00 510.00 512.50 342.00 77.50 62.50 2945.00
1939 20.50 51.00 127.00 264.00 362.00 433.50 536.50 520.50 571.00 398.00 144.50 67.00 3495.50
1940 95.00 101.50 188.50 250.50 330.50 464.00 494.00 511.00 435.00 327.50 81.00 81.50 3360.00
1941 56.50 78.50 174.50 143.00 354.00 428.50 541.50 513.00 467.50 331.50 175.50 50.50 3314.50
1942 41.00 39.50 108.50 173.50 255.50 436.00 549.50 502.00 430.50 370.00 127.50 42.00 3075.50
1943 43.00 82.50 150.00 203.00 385.50 361.00 495.50 498.50 526.50 339.00 162.00 40.50 3287.00
1944 10.50 26.50 140.00 100.50 290.00 371.50 437.50 508.00 508.00 369.50 68.79 a 37.00 2867.79
1945 12.50 93.00 57.00 226.00 235.50 502.50 530.00 508.00 501.50 355.50 127.00 48.50 3197.00
1946 10.00 20.00 78.00 150.00 249.00 399.50 540.50 473.00 468.00 281.00 51.50 21.00 2741.50
1947 12.00 57.50 136.00 259.50 355.50 473.50 503.00 500.00 494.50 324.50 49.50 11.00 3176.50
1948 32.50 24.50 28.00 94.00 197.00 390.00 469.50 486.00 426.50 320.50 95.50 1.50 2565.50
1949 0.50 17.00 75.50 224.00 286.50 454.50 458.50 455.00 486.00 263.00 165.50 12.00 2898.00
1950 31.52 a 35.50 62.50 195.50 281.00 374.50 497.00 573.50 482.00 328.50 214.50 69.50 3145.52
1951 16.00 48.50 119.00 110.50 310.50 369.00 470.50 492.50 445.50 331.50 118.50 21.50 2853.50
1952 12.00 52.00 68.00 176.50 326.00 308.50 517.18 a 492.00 518.50 366.00 84.50 21.00 2942.18
1953 57.50 37.00 64.50 131.00 197.50 362.50 538.00 481.00 524.50 304.00 84.50 j 19.00 2716.50
1954 13.50 47.00 33.00 218.00 313.50 441.00 559.50 453.00 448.00 322.00 67.50 15.00 2931.00
1955 3.50 23.50 75.50 73.00 317.50 377.00 512.50 495.00 457.00 320.00 114.00 53.00 2821.50
1956 17.50 9.00 66.00 156.00 297.50 468.50 482.50 518.50 472.00 264.50 102.00 16.50 2870.50
1957 4.50 77.00 85.50 211.50 280.00 542.00 546.50 520.50 509.00 279.50 46.50 10.50 3113.00
1958 6.50 113.00 22.00 208.50 344.00 478.00 519.50 598.50 590.00 428.00 176.50 73.00 3557.50
1959 46.00 36.00 171.00 260.50 327.50 542.00 583.00 517.50 475.50 440.00 126.00 28.00 3553.00
1960 31.50 33.50 111.50 181.00 302.50 532.24 a 531.13 a 499.00 450.50 326.07 d 72.00 21.00 3091.95
1961 13.00 54.50 63.50 205.00 232.50 496.00 609.00 558.50 446.00 336.00 82.50 12.18 c 3108.68
1962 43.50 22.00 28.00 240.00 b 273.50 435.00 454.00 547.50 437.50 308.00 138.00 33.00 2960.00
1963 5.50 156.00 54.50 80.50 280.00 402.50 496.00 550.00 551.00 328.50 67.50 4.00 2976.00
1964 3.50 32.50 71.00 155.50 227.00 407.00 533.50 565.50 487.00 426.50 79.00 79.00 3067.00
1965 9.50 20.50 75.00 179.00 298.50 318.00 477.50 590.50 0.00 z 434.00 137.50 0.00 2540.00
1966 18.50 12.50 94.00 270.50 308.50 509.50 484.00 558.00 509.50 386.50 151.50 35.50 3338.50
1967 40.50 40.00 83.50 18.00 340.00 384.50 568.00 599.00 605.00 450.50 228.50 54.50 3412.00
1968 19.50 177.50 163.50 243.00 323.50 525.00 581.50 575.50 550.50 328.50 122.50 15.50 3626.00
1969 16.50 21.50 123.50 163.00 385.00 439.00 560.50 639.50 547.00 350.50 133.50 87.50 3467.00
1970 89.50 107.50 205.00 133.50 420.50 429.00 533.50 526.00 556.00 294.00 163.50 27.00 3485.00
1971 39.50 55.50 110.00 125.50 276.50 456.00 547.50 634.00 559.00 277.50 90.00 1.00 3172.00
1972 4.00 92.50 227.50 185.00 342.50 453.50 591.50 570.50 446.00 328.50 70.00 24.50 3336.00
1973 25.50 85.00 60.00 257.50 385.00 579.00 554.00 479.00 492.00 358.50 109.00 37.50 3422.00
1974 57.00 20.00 131.00 185.50 313.00 467.00 585.00 571.50 534.50 401.00 102.50 20.00 3388.00
1975 9.00 49.50 97.00 74.50 381.00 430.50 543.00 545.50 487.00 295.50 71.00 39.50 3023.00
1976 22.00 52.50 93.00 162.00 391.00 537.00 589.50 552.50 504.00 427.00 226.00 12.00 3568.50
1977 7.00 118.00 69.00 273.50 269.00 517.50 594.00 614.50 512.50 380.50 172.50 87.00 3615.00
1978 48.50 89.00 0.00 z 162.50 455.50 501.00 569.50 576.27 c 589.50 490.32 a 0.00 z 20.67 a 3502.75
1979 24.80 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 557.00 517.91 b 621.00 391.00 98.50 45.47 a 2255.68
1980 50.00 117.50 115.50 183.00 256.50 375.00 512.50 448.47 a 448.50 392.00 146.00 29.50 3074.47
1981 32.50 97.00 97.50 241.00 384.50 658.00 514.50 561.50 465.00 289.85 a 178.50 41.16 b 3561.01
1982 2.00 85.08 b 60.50 181.50 324.00 331.00 533.00 569.00 521.00 375.00 55.00 27.50 3064.58
1983 27.50 80.00 99.50 122.00 316.50 498.00 594.00 617.00 605.00 468.00 112.00 66.50 3606.00
1984 68.50 34.50 220.00 178.00 465.00 462.50 585.50 537.50 644.00 300.00 68.50 15.00 3579.00
1985 0.00 93.00 31.00 240.50 203.50 457.00 478.00 406.50 342.50 291.40 a 83.00 15.00 2641.40
1986 33.00 83.50 145.00 121.50 248.00 370.50 413.50 358.00 310.50 289.00 135.50 5.50 2513.50
1987 10.00 48.50 73.00 216.00 326.00 349.50 372.00 379.50 391.00 458.00 148.00 69.00 i 2771.50
1988 43.00 153.00 223.00 242.00 342.00 469.00 616.00 517.00 482.00 397.50 151.50 65.50 3701.50
1989 19.00 34.00 136.00 306.50 338.00 448.50 570.50 498.00 424.50 353.50 174.00 37.00 3339.50
1990 30.00 42.50 118.50 302.00 318.00 505.50 515.00 563.50 550.50 458.00 158.50 15.50 3577.50
1991 48.00 149.50 54.50 176.00 267.00 365.50 476.50 479.50 489.00 484.50 218.00 24.00 3232.00
1992 7.50 146.50 172.00 312.00 433.00 421.00 532.50 554.50 522.00 477.00 186.50 27.50 3792.00
1993 22.00 48.00 209.50 218.00 378.00 575.50 557.50 601.50 499.50 421.00 127.50 36.50 3694.50
1994 24.00 33.50 194.50 223.50 327.50 474.00 447.00 568.50 492.50 388.50 31.00 7.00 3211.50
1995 85.50 143.00 116.00 197.50 268.50 436.50 590.50 580.50 524.50 460.00 274.50 99.00 3776.00
1996 53.00 154.00 196.00 277.00 384.00 506.50 545.50 596.50 457.00 412.50 173.00 96.00 3851.00
1997 59.50 95.00 225.00 297.50 477.50 533.00 557.50 569.00 606.00 397.00 224.50 53.50 4095.00
1998 79.00 47.00 163.50 0.00 z 227.00 400.00 539.50 636.00 538.00 382.00 107.00 31.00 3150.00
1999 27.00 34.50 41.00 222.00 285.00 409.50 490.00 550.00 494.50 444.00 197.00 45.00 3239.50
2000 66.00 92.50 181.50 0.00 z 0.00 z 473.00 462.50 543.50 550.34 a 333.00 83.00 26.00 2811.34
2001 6.00 58.50 0.00 z 0.00 z 0.00 z 566.50 487.50 546.50 457.50 448.50 182.50 35.50 2789.00
2002 23.00 88.00 109.50 212.50 299.00 500.00 539.50 519.00 529.00 368.50 215.00 58.50 3461.50
2003 103.00 55.50 154.40 e 74.00 319.50 469.66 a 552.50 562.00 547.50 454.00 74.50 39.50 3406.06
2004 27.50 38.50 296.00 259.50 337.00 461.50 495.00 577.50 575.00 329.00 104.00 53.50 3554.00
2005 4.50 87.50 192.50 153.00 310.00 390.50 562.50 497.50 419.50 368.50 166.50 79.50 3232.00
2006 40.50 80.50 17.50 159.50 327.00 482.07 a 368.00 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1107.07
Period of Record Statistics
MEAN 29.80 66.76 119.77 191.15 318.29 449.55 527.10 531.61 496.95 366.76 129.35 36.53 3267.38
S.D. 24.29 40.59 63.19 63.28 64.31 66.89 50.38 54.35 61.65 60.00 53.21 25.03 329.30
SKEW 1.02 0.75 0.56 -0.29 0.19 0.27 -0.35 -0.56 -0.17 0.27 0.37 0.76 -0.06
MAX 103.00 177.50 296.00 312.00 477.50 658.00 629.50 639.50 644.00 490.32 274.50 99.00 4095.00
MIN 0.00 8.00 17.50 18.00 169.00 308.50 372.00 358.00 310.50 263.00 31.00 0.00 2513.50
NO YRS 76 75 73 72 73 75 75 75 74 75 73 74 67