SAN FRANCISCO RICHMOND, CALIFORNIA

Monthly Total Growing Degree Days

(047767)

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 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1949 0.00 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 0.00 z 0.00 z 0.00 z 0.00
1950 0.00 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 0.00 z 0.00 z 0.00 z 0.00
1951 0.00 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 0.00 z 0.00 z 0.00 z 0.00
1952 0.00 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 0.00 z 0.00 z 0.00 z 0.00
1953 0.00 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 0.00 z 0.00 z 0.00 z 0.00
1954 0.00 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 0.00 z 0.00 z 0.00 z 0.00
1955 0.00 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 0.00 z 0.00 z 0.00 z 0.00
1956 0.00 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 0.00 z 0.00 z 0.00 z 0.00
1957 0.00 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 0.00 z 0.00 z 0.00 z 0.00
1958 0.00 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 0.00 z 0.00 z 329.00 i 0.00
1959 378.50 314.50 463.45 a 493.00 482.00 365.00 i 597.02 b 629.50 627.93 a 638.00 505.86 a 376.50 5506.26
1960 263.00 305.02 a 392.48 c 400.00 451.80 d 538.97 a 293.50 n 547.15 a 503.50 517.91 b 331.61 b 259.00 4510.43
1961 290.00 327.00 344.62 a 390.50 450.50 539.50 561.50 605.03 b 593.00 563.50 385.00 271.50 5321.65
1962 314.50 300.00 358.50 436.50 441.00 453.50 482.00 615.50 514.50 538.50 475.00 381.00 5310.50
1963 273.83 d 440.50 327.50 433.00 500.50 489.83 a 577.50 555.50 665.00 366.00 l 457.00 230.50 4950.66
1964 290.50 343.50 317.00 374.00 406.00 491.00 533.50 617.00 638.00 608.50 375.00 382.50 5376.50
1965 351.91 d 306.00 388.00 400.50 380.00 403.00 527.00 594.50 596.00 710.50 505.00 248.50 5410.91
1966 425.50 368.00 415.00 534.00 503.50 558.50 562.13 a 561.50 642.50 679.50 489.50 390.71 b 6130.34
1967 395.00 428.00 455.50 334.00 548.50 468.00 617.50 587.50 666.00 680.50 592.00 373.50 6146.00
1968 0.00 z 292.00 l 422.50 401.00 435.50 489.00 513.50 668.00 626.00 548.00 427.00 274.50 4805.00
1969 174.50 g 272.00 397.50 382.00 497.00 548.00 543.50 547.00 556.00 466.50 g 518.50 459.00 4720.50
1970 392.50 442.50 456.73 a 321.00 452.50 468.50 515.50 497.00 623.50 442.61 d 287.50 i 304.66 b 4917.00
1971 323.50 289.15 b 275.00 g 342.50 407.00 482.50 470.00 593.50 623.50 511.50 b 395.50 246.50 4685.15
1972 231.50 352.00 391.00 389.50 431.50 465.00 608.50 611.00 586.00 609.48 c 421.50 281.50 5378.48
1973 282.50 370.00 364.50 451.00 449.50 541.00 542.00 509.00 572.50 561.00 373.50 344.00 5360.50
1974 311.50 279.00 324.50 f 395.50 416.00 501.50 594.50 600.37 a 563.50 642.00 443.50 312.50 5059.87
1975 282.00 311.00 381.00 319.50 476.00 467.50 541.47 a 554.50 542.00 506.50 395.50 350.82 a 5127.78
1976 346.50 331.00 330.00 366.50 489.00 535.00 586.50 675.50 635.50 628.50 530.00 365.00 5819.00
1977 290.50 361.50 359.00 412.50 464.50 499.00 568.00 655.00 608.33 c 562.00 423.00 400.50 5603.83
1978 430.79 b 393.00 554.00 477.50 541.50 528.62 a 571.50 590.55 a 672.41 a 567.50 406.50 289.85 a 6023.73
1979 272.50 338.92 d 447.50 457.00 522.50 538.50 593.00 624.13 a 712.00 690.00 525.00 423.00 6144.05
1980 277.50 i 455.50 492.50 458.57 b 497.00 563.00 635.50 621.00 613.39 b 441.50 h 490.00 453.00 5279.46
1981 399.00 417.50 425.50 424.14 a 488.50 581.50 0.00 z 595.50 575.00 605.53 a 524.50 456.50 5493.17
1982 0.00 z 379.00 399.50 455.00 479.00 193.00 r 274.00 q 408.00 j 583.50 0.00 z 437.59 a 363.00 3096.59
1983 321.50 393.00 449.50 458.00 512.00 0.00 z 632.50 750.20 a 755.00 689.50 470.50 218.00 p 5431.70
1984 22.50 z 375.00 519.00 400.50 492.00 484.00 622.00 621.00 674.50 556.50 393.00 252.50 5390.00
1985 0.00 z 0.00 z 311.50 475.86 a 252.00 q 534.50 640.15 a 0.00 z 0.00 z 0.00 z 75.50 s 251.00 2213.01
1986 427.00 415.00 511.50 388.00 431.00 551.38 a 579.00 555.50 570.00 a 0.00 z 0.00 z 330.00 4758.38
1987 277.50 340.00 408.00 0.00 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 1025.50
1988 0.00 z 0.00 z 0.00 z 0.00 z 487.00 565.50 585.50 634.00 331.00 l 351.50 m 446.00 314.50 3032.50
1989 261.00 114.00 s 400.50 542.50 526.50 561.50 574.50 618.00 583.00 596.00 503.00 346.00 5512.50
1990 347.50 268.00 398.50 490.00 502.50 587.50 642.50 680.00 652.00 580.50 442.00 144.00 k 5591.00
1991 306.50 418.50 345.00 404.50 426.00 465.50 552.50 640.00 551.00 566.50 473.50 335.00 5484.50
1992 295.50 455.50 531.50 553.50 591.50 601.50 676.00 382.00 m 606.00 677.50 470.50 284.50 5743.50
1993 272.50 317.50 472.00 474.00 245.50 p 0.00 z 603.50 0.00 z 0.00 z 391.00 m 524.00 110.00 q 2663.50
1994 252.50 k 217.00 i 0.00 z 422.00 458.00 349.50 h 505.50 0.00 z 575.50 564.50 324.50 264.50 3114.50
1995 409.50 417.00 463.50 397.50 463.50 472.00 638.00 591.00 603.50 625.50 484.50 413.00 5978.50
1996 395.50 411.50 479.00 473.00 500.00 456.00 521.00 544.50 538.50 565.00 467.00 441.50 5792.50
1997 351.00 378.00 422.50 413.00 584.00 513.00 560.00 691.50 734.00 624.50 548.50 390.00 6210.00
1998 412.82 a 348.00 438.00 410.00 491.00 542.00 543.50 566.00 580.86 a 571.00 413.00 274.00 5590.18
1999 307.00 276.37 a 323.50 364.50 364.25 a 428.50 514.17 b 577.00 551.00 594.17 a 482.07 a 383.22 b 5165.75
2000 361.50 402.89 a 410.20 c 469.82 b 470.00 502.76 a 521.00 566.02 b 627.86 b 551.05 b 375.00 a 294.00 h 5258.10
2001 323.84 c 280.56 c 425.98 b 321.21 a 492.38 a 504.64 b 537.85 a 559.00 528.75 b 550.85 e 335.50 h 299.00 f 4525.06
2002 308.50 381.00 364.50 410.50 421.60 a 466.03 a 535.30 c 564.64 c 559.50 530.32 c 412.50 g 431.13 d 4973.03
2003 480.50 b 270.00 g 439.74 d 303.50 f 476.62 c 523.85 d 521.00 663.00 655.71 b 590.03 a 347.50 f 383.22 b 4733.68
2004 342.66 c 345.21 c 394.00 g 0.00 z 492.68 c 397.50 f 578.84 b 638.00 627.78 c 574.61 c 455.19 d 380.55 b 4435.52
2005 231.00 h 329.00 f 296.50 k 209.00 n 547.09 d 401.00 f 545.27 c 389.00 h 523.45 a 517.18 a 510.00 a 422.50 3065.49
2006 399.00 363.42 d 324.43 b 424.50 480.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1991.85
Period of Record Statistics
MEAN 337.09 358.81 412.42 421.90 476.02 510.54 566.77 602.86 605.52 587.81 455.25 344.76 5651.30
S.D. 59.32 54.24 61.49 56.92 47.94 45.77 46.78 51.42 56.86 59.48 60.49 67.21 363.91
SKEW 0.42 0.04 0.28 0.26 0.08 -0.10 0.22 0.44 0.52 0.18 -0.15 -0.02 0.24
MAX 480.50 455.50 554.00 553.50 591.50 601.50 676.00 750.20 755.00 710.50 592.00 459.00 6210.00
MIN 231.50 268.00 311.50 319.50 364.25 403.00 470.00 497.00 503.50 442.61 324.50 230.50 5127.78
NO YRS 39 41 42 43 45 39 43 40 43 38 40 41 19