SAN FRANCISCO INTL AP, CALIFORNIA

Monthly Total Growing Degree Days

(047769)

Base Temperature = 50 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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 335.50 353.00 302.50 278.00 111.00 4.00 1384.00
1949 0.00 18.50 79.50 117.00 195.50 302.00 280.50 319.00 381.50 224.50 226.00 21.50 2165.50
1950 32.50 35.00 58.50 141.50 179.00 261.50 360.00 378.50 415.00 333.50 293.50 122.50 2611.00
1951 25.00 63.50 82.50 67.00 247.50 265.00 270.00 351.00 361.50 312.00 126.50 43.00 2214.50
1952 18.50 64.50 77.00 148.00 210.00 232.50 381.00 315.00 385.00 277.00 92.50 46.50 2247.50
1953 109.00 32.50 58.50 85.50 171.00 257.00 313.50 373.00 425.50 268.00 160.00 51.50 2305.00
1954 32.50 51.50 34.00 199.00 207.00 263.00 365.50 343.00 355.50 254.50 113.00 34.50 2253.00
1955 0.00 18.50 88.50 71.50 226.00 278.00 287.00 301.50 337.50 290.50 141.50 87.50 2128.00
1956 39.50 21.00 66.00 134.00 257.50 338.50 362.50 376.00 414.00 257.50 146.50 27.00 2440.00
1957 12.50 105.50 118.50 206.50 265.00 408.00 439.00 392.00 466.00 347.50 125.00 31.50 2917.00
1958 39.00 153.50 73.00 231.00 383.50 457.50 467.00 533.00 584.00 415.50 223.50 160.00 3720.50
1959 117.00 102.50 244.50 294.50 282.50 346.50 439.50 478.00 428.50 463.50 196.00 61.50 3454.50
1960 55.50 53.00 153.50 173.00 256.00 427.00 382.00 374.50 373.50 327.50 122.50 36.00 2734.00
1961 36.00 90.50 102.00 213.00 218.00 394.50 433.00 447.50 425.50 333.50 104.50 20.50 2818.50
1962 34.50 45.00 32.50 180.00 208.00 293.50 313.50 419.50 328.50 297.50 174.50 65.50 2392.50
1963 17.50 164.50 68.50 100.00 211.50 259.00 378.00 417.00 489.50 378.00 136.00 7.00 2626.50
1964 11.50 43.00 72.50 126.00 179.50 337.00 404.00 441.50 403.50 337.00 89.50 89.00 2534.00
1965 19.00 32.00 74.00 148.50 162.00 248.50 318.00 412.00 330.50 388.50 165.00 2.00 2300.00
1966 17.00 18.50 82.00 234.50 225.50 342.00 325.50 379.00 420.50 322.00 157.00 41.50 2565.00
1967 36.00 48.50 88.00 44.00 261.00 279.50 394.50 396.00 491.00 417.00 233.50 49.00 2738.00
1968 20.50 139.00 139.50 148.50 193.50 339.00 366.50 456.50 425.00 292.50 136.50 19.50 2676.50
1969 30.00 19.00 98.50 121.50 293.00 333.50 380.50 402.50 415.50 347.50 181.50 124.50 2747.50
1970 116.00 135.00 195.00 111.00 324.50 314.00 398.00 359.00 463.00 262.00 178.00 41.00 2896.50
1971 31.00 37.50 87.50 94.00 198.00 302.00 330.00 469.50 484.00 218.00 97.00 6.00 2354.50
1972 10.00 82.00 167.00 161.50 236.50 324.50 443.00 432.50 376.00 338.50 100.00 29.50 2701.00
1973 37.00 85.00 55.50 202.00 268.50 404.00 373.00 330.50 403.50 330.50 127.00 34.00 2650.50
1974 53.50 18.50 124.50 142.50 191.00 310.00 403.50 424.50 373.00 371.50 114.00 25.00 2551.50
1975 9.00 46.00 62.50 46.00 259.50 294.50 365.50 402.00 341.50 272.50 86.50 30.50 2216.00
1976 31.50 50.50 65.00 101.00 256.50 394.00 387.00 443.50 396.50 350.50 215.00 10.50 2701.50
1977 16.00 95.00 51.50 164.00 179.00 310.50 385.00 435.50 404.50 324.50 168.00 85.50 2619.00
1978 86.50 82.00 217.00 147.50 320.50 309.50 352.50 410.00 472.00 345.00 89.00 8.00 2839.50
1979 16.00 32.50 142.50 164.50 321.50 328.50 426.50 423.00 517.50 389.00 128.00 61.00 2950.50
1980 60.50 131.50 96.00 175.00 194.00 296.00 402.50 355.50 396.00 345.00 167.50 59.50 2679.00
1981 73.50 116.50 103.50 183.50 278.50 449.50 361.00 400.50 380.00 265.00 193.50 79.00 2884.00
1982 0.00 78.50 60.50 150.50 228.00 292.00 361.50 411.00 420.50 342.50 89.00 28.50 2462.50
1983 25.00 97.50 130.00 142.50 240.00 345.00 466.50 522.00 546.50 445.50 170.50 114.50 3245.50
1984 66.00 88.50 216.50 178.00 366.00 337.00 484.00 446.00 591.00 320.50 118.50 30.00 3242.00
1985 2.50 82.00 60.50 269.00 266.00 456.00 459.50 433.50 394.00 331.00 98.50 25.00 2877.50
1986 122.00 178.50 220.00 184.00 267.50 374.50 383.00 345.50 387.00 352.00 215.00 39.50 3068.50
1987 31.00 103.00 156.50 276.50 357.50 372.00 405.00 466.50 418.50 430.00 209.50 75.00 3301.00
1988 55.00 141.50 200.50 242.50 293.00 373.00 473.50 462.50 392.50 353.00 195.00 70.50 3252.50
1989 24.00 43.50 157.50 321.50 304.00 380.00 397.50 432.50 342.50 335.00 193.50 43.00 2974.50
1990 41.00 38.00 108.50 254.00 278.50 370.00 447.50 504.00 490.50 406.50 182.00 23.00 3143.50
1991 48.00 146.50 77.00 171.00 212.00 282.00 423.00 443.50 387.50 395.00 223.50 47.50 2856.50
1992 28.00 176.00 230.50 318.50 414.50 406.50 490.50 426.00 457.50 476.00 204.00 42.50 3670.50
1993 38.00 73.50 231.00 241.50 376.00 445.00 458.00 535.50 391.50 416.00 192.50 57.50 3456.00
1994 58.00 40.50 187.00 204.00 261.50 345.00 373.50 447.50 423.50 313.00 29.00 14.00 2696.50
1995 90.50 120.00 128.00 153.00 215.50 324.00 458.00 402.50 395.00 386.50 252.00 119.00 3044.00
1996 75.00 163.00 185.00 273.00 323.00 345.00 406.50 393.50 390.00 336.50 186.50 135.00 3212.00
1997 74.00 97.50 188.00 245.50 446.00 370.00 432.50 525.00 547.50 364.50 230.00 60.00 3580.50
1998 98.50 73.00 163.50 172.50 239.00 347.50 397.50 442.00 430.00 319.00 125.00 32.00 2839.50
1999 41.00 36.00 46.00 151.50 169.00 287.00 368.00 427.00 406.50 378.72 a 212.00 55.80 a 2578.52
2000 86.00 105.00 139.00 246.00 316.50 386.00 351.50 420.50 486.00 308.50 85.50 56.00 2986.50
2001 8.50 54.00 177.00 108.00 390.50 377.50 393.50 406.50 385.50 384.00 217.50 58.00 2960.50
2002 34.50 103.00 125.50 201.50 246.50 341.50 430.00 444.50 443.50 348.00 223.50 94.00 3036.00
2003 125.00 68.50 180.50 129.00 275.50 382.50 402.00 508.50 506.50 407.00 120.00 84.00 3189.00
2004 39.00 67.50 291.00 279.50 320.00 349.50 459.50 512.00 519.50 334.00 164.00 78.50 3414.00
2005 23.00 139.00 224.50 203.50 355.00 357.00 445.00 416.00 370.00 349.00 218.50 112.50 3213.00
2006 57.50 107.50 57.00 166.50 303.00 398.50 488.50 416.00 370.00 324.00 173.50 58.00 2920.00
2007 20.00 78.00 187.50 180.50 273.00 339.50 438.00 446.00 427.50 306.00 173.00 33.00 2902.00
2008 16.00 66.50 114.50 164.00 270.00 345.00 396.50 446.00 449.50 407.50 233.50 25.50 2934.50
2009 76.00 72.50 122.50 192.50 291.00 387.00 379.50 484.00 485.00 364.50 197.00 33.50 3085.00
2010 51.00 112.00 161.50 165.50 234.50 371.50 402.00 419.00 556.00 467.00 178.50 87.50 3206.00
2011 61.50 69.50 117.00 166.50 212.50 315.00 394.50 377.00 439.50 403.50 115.00 32.50 2704.00
2012 47.00 77.00 108.50 208.00 260.50 342.50 385.50 361.00 318.50 422.50 250.50 100.75 a 2882.25
2013 21.00 45.00 146.73 a 10.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 212.73
Period of Record Statistics
MEAN 43.49 79.59 125.51 175.58 263.53 341.32 395.01 419.51 423.63 346.18 163.00 53.55 2836.98
S.D. 31.84 42.88 60.65 62.62 63.72 52.98 50.69 53.59 64.05 57.28 52.92 35.34 380.99
SKEW 0.95 0.52 0.55 0.23 0.70 0.18 -0.24 0.12 0.65 0.10 -0.03 0.89 0.18
MAX 125.00 178.50 291.00 321.50 446.00 457.50 490.50 535.50 591.00 476.00 293.50 160.00 3720.50
MIN 0.00 18.50 32.50 44.00 162.00 232.50 270.00 301.50 302.50 218.00 29.00 2.00 2128.00
NO YRS 65 65 65 64 64 64 65 65 65 65 65 65 64