CHULA VISTA, CALIFORNIA

Monthly Total Growing Degree Days

(041758)

Base Temperature = 40 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
1918 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 891.35 d 800.50 515.50 385.00 2592.35
1919 411.50 344.00 393.00 514.50 628.00 719.50 837.00 843.50 750.50 590.50 473.50 414.50 6920.00
1920 375.00 434.50 423.00 463.00 600.00 670.00 778.00 870.50 729.00 574.50 478.50 374.00 6770.00
1921 354.50 363.00 498.00 452.00 536.00 666.50 852.00 842.00 758.00 726.50 557.50 544.50 7150.50
1922 331.00 352.00 404.00 435.00 591.50 676.50 823.50 886.00 834.50 666.50 423.50 481.50 6905.50
1923 398.00 339.50 450.50 514.00 662.50 638.50 785.50 822.00 772.00 658.50 623.50 463.50 7128.00
1924 351.50 449.00 455.50 512.50 657.00 708.50 797.00 797.50 725.00 546.50 504.00 361.00 6865.00
1925 331.50 372.00 456.50 505.00 642.00 701.50 900.00 839.00 710.00 677.00 551.50 525.50 7211.50
1926 417.50 477.50 632.00 683.50 710.00 768.00 825.50 872.00 709.50 667.50 635.50 398.00 7796.50
1927 377.50 416.00 456.50 496.50 609.50 653.00 827.50 839.00 733.50 642.65 e 592.50 416.00 7060.15
1928 422.50 399.79 a 509.00 475.50 679.00 693.10 a 770.50 797.00 715.50 631.00 508.00 407.00 7007.89
1929 339.00 290.00 405.50 465.00 636.00 708.50 877.50 926.50 807.50 740.00 524.00 502.50 7222.00
1930 419.00 421.50 544.00 598.00 590.50 706.03 a 868.00 900.00 757.00 689.50 598.50 406.00 7498.03
1931 433.50 473.00 552.50 645.00 777.00 798.00 998.50 1007.50 833.50 734.50 460.00 340.50 8053.50
1932 310.00 388.50 478.00 528.50 632.00 675.00 763.00 779.50 731.00 648.00 610.00 346.50 6890.00
1933 307.00 268.00 433.50 479.00 501.50 627.00 777.50 805.00 651.00 645.00 529.50 361.00 6385.00
1934 374.50 448.00 600.88 a 610.00 710.50 699.50 871.50 876.00 827.50 699.50 558.50 526.50 7802.88
1935 429.00 416.50 384.50 534.00 626.00 669.50 811.50 915.50 786.00 647.50 413.50 425.50 7059.00
1936 399.50 416.50 469.00 494.00 664.00 714.00 897.50 929.50 783.00 700.50 567.00 459.00 7493.50
1937 214.00 315.00 454.00 507.50 655.00 697.00 843.50 852.50 821.50 676.50 507.00 513.50 7057.00
1938 457.50 415.50 473.00 537.00 628.50 672.00 803.50 862.50 842.00 639.00 439.50 502.50 7272.50
1939 373.00 237.00 396.00 574.50 636.00 690.50 829.50 881.00 951.00 759.00 599.00 526.00 7452.50
1940 492.50 453.00 537.50 608.50 711.00 711.50 801.50 834.50 772.00 744.00 549.50 576.00 7791.50
1941 445.00 478.50 582.00 554.50 742.50 692.00 809.50 852.00 731.00 707.50 564.50 442.00 7601.00
1942 433.50 318.00 429.00 527.50 613.50 670.50 829.00 847.50 734.00 702.00 489.83 a 405.00 6999.33
1943 401.00 436.00 525.50 540.00 670.50 661.50 816.00 889.00 786.50 712.50 527.00 491.00 7456.50
1944 388.50 347.00 449.50 492.00 644.00 665.00 761.50 816.00 747.50 680.00 527.50 468.00 6986.50
1945 362.50 386.50 408.50 466.00 614.50 698.00 828.00 906.50 850.00 760.00 497.00 449.50 7227.00
1946 380.00 287.00 439.50 582.00 663.50 644.50 844.00 897.00 834.50 643.50 466.00 430.50 7112.00
1947 307.00 411.00 536.50 602.50 670.00 743.50 818.00 882.50 845.50 709.50 469.00 423.50 7418.50
1948 363.50 311.50 395.50 527.00 593.00 669.00 728.50 771.50 750.50 666.00 464.50 320.00 6560.50
1949 194.00 274.50 403.00 552.00 629.00 725.00 806.50 825.50 801.00 650.50 620.00 357.50 6838.50
1950 259.00 337.00 478.50 536.50 562.00 648.00 822.50 786.50 458.00 l 703.00 556.00 467.50 6156.50
1951 360.50 339.50 306.50 j 539.50 599.50 694.00 823.00 815.00 757.76 a 717.50 558.00 383.50 6587.76
1952 336.00 416.50 429.50 508.50 649.00 632.00 777.00 848.00 810.00 682.50 475.00 394.00 6958.00
1953 464.00 329.00 413.00 476.50 592.00 630.00 867.50 833.50 743.50 730.00 581.50 396.00 7056.50
1954 337.50 488.50 431.50 549.50 645.00 684.00 890.00 869.50 789.50 628.00 579.00 435.00 7327.00
1955 310.50 352.50 477.00 468.50 601.00 521.50 f 561.00 i 672.50 h 706.00 f 445.00 i 359.00 h 341.00 g 2209.50
1956 301.50 f 208.00 h 266.00 j 367.50 g 490.00 i 514.50 h 590.00 i 600.00 i 594.00 i 519.50 h 349.00 k 282.00 m 0.00
1957 408.37 e 349.50 g 502.56 e 407.00 g 508.50 f 562.00 h 606.00 i 681.50 h 532.00 j 522.50 h 337.50 j 403.50 h 910.92
1958 366.00 g 338.50 h 356.50 g 460.00 g 519.00 h 522.00 i 629.50 h 643.50 j 639.00 h 637.50 h 352.50 j 381.50 h 0.00
1959 359.50 h 386.40 c 440.00 h 486.50 h 473.50 i 549.00 h 676.00 i 676.00 i 570.00 j 548.50 h 388.50 k 398.00 g 386.40
1960 255.50 i 265.00 h 357.50 h 412.00 g 464.50 i 531.00 h 538.50 l 659.50 h 601.00 i 503.00 i 387.50 g 283.00 h 0.00
1961 379.50 h 299.00 i 394.00 g 377.00 i 414.00 j 490.00 h 585.00 j 633.00 i 464.00 l 489.00 i 367.50 j 338.00 f 0.00
1962 332.00 f 404.17 e 297.50 g 371.00 i 453.00 g 436.50 j 552.50 i 622.50 h 479.50 k 489.00 h 313.50 l 304.50 i 404.17
1963 289.50 h 411.50 f 373.50 f 471.35 d 516.50 g 538.50 f 584.50 h 613.50 j 752.50 g 557.50 i 453.50 f 341.00 i 471.35
1964 309.50 f 386.86 d 354.50 f 525.60 e 424.00 g 635.40 e 629.50 f 598.50 j 613.00 f 635.50 g 495.60 e 432.00 2475.46
1965 338.00 f 352.33 d 472.15 e 531.67 c 436.00 i 456.00 h 529.00 i 651.50 h 741.60 e 636.50 g 473.50 g 359.50 g 2097.75
1966 258.00 i 263.50 g 358.00 g 424.50 h 482.00 i 559.50 g 589.50 i 945.50 b 804.00 763.50 586.00 464.47 b 3563.47
1967 397.00 414.00 535.50 415.50 629.30 a 625.50 845.02 b 940.50 930.50 781.00 665.00 400.00 7578.82
1968 431.00 496.50 516.15 a 550.50 620.00 a 672.12 d 845.27 a 867.50 843.50 694.50 553.50 344.62 a 7435.15
1969 498.58 a 362.00 423.50 556.50 635.50 694.66 a 824.00 907.00 808.00 648.00 608.28 a 446.50 7412.51
1970 415.50 464.50 526.50 513.00 644.50 697.00 836.00 933.21 b 779.00 708.50 549.83 a 410.00 7477.53
1971 389.00 379.04 a 431.50 502.50 565.50 629.50 816.00 998.50 863.00 673.00 464.50 338.00 7050.04
1972 304.50 402.00 526.00 541.50 667.00 746.50 904.17 a 932.00 822.50 746.50 514.50 446.50 7553.67
1973 368.50 445.00 442.50 0.00 z 616.50 724.50 788.50 841.50 758.50 674.50 502.00 446.00 6608.00
1974 408.00 363.50 467.50 517.00 621.50 702.50 865.00 849.50 802.00 735.00 560.50 392.50 7284.50
1975 383.50 339.00 415.50 441.50 569.50 637.50 784.00 801.50 837.50 677.00 506.00 393.50 6786.00
1976 460.50 465.00 488.50 503.50 657.50 747.00 864.50 853.00 896.50 799.50 670.00 506.50 7912.00
1977 496.50 485.50 437.50 552.41 a 601.50 708.00 836.00 913.50 830.50 775.50 606.00 603.50 7846.41
1978 536.00 471.50 636.50 576.00 708.50 772.00 829.00 865.50 882.50 816.50 526.00 354.00 7974.00
1979 418.50 358.50 507.50 556.50 695.00 772.50 822.50 907.00 934.00 754.00 540.50 525.50 7792.00
1980 554.50 551.00 a 526.00 589.00 621.55 a 687.50 866.50 945.00 804.00 736.00 567.00 501.17 a 7949.22
1981 520.00 515.50 524.50 613.00 715.00 857.00 955.50 962.00 864.50 698.00 585.50 500.50 8311.00
1982 447.00 519.00 567.50 603.50 719.72 a 717.50 886.50 954.50 917.00 822.50 592.00 457.50 8204.22
1983 567.50 502.00 609.00 583.50 721.00 760.00 920.00 1067.50 1032.50 906.50 645.00 560.50 8875.00
1984 574.50 489.00 611.50 625.00 755.50 795.50 1058.50 1037.00 1072.00 801.00 555.00 452.00 8826.50
1985 454.00 416.50 470.50 634.50 724.50 812.07 a 1044.00 984.00 886.00 851.50 559.50 539.00 8376.07
1986 648.50 526.50 656.50 662.50 746.14 b 820.00 934.02 d 989.50 803.50 805.43 d 676.50 541.50 8810.58
1987 464.50 492.50 567.50 687.50 765.00 776.50 837.00 918.00 891.00 942.00 654.00 407.00 8402.50
1988 505.50 574.50 655.00 653.00 734.50 732.00 940.50 952.00 908.50 841.50 598.00 510.50 8605.50
1989 464.00 464.00 595.50 765.50 724.00 774.00 922.50 966.00 918.50 831.50 0.00 z 598.50 8024.00
1990 512.50 424.00 378.00 k 690.50 755.00 867.00 983.00 978.50 942.00 889.00 664.50 495.50 8201.50
1991 522.50 536.50 517.50 631.50 661.00 725.50 845.00 919.50 880.00 860.50 0.00 z 531.00 7630.50
1992 564.00 602.00 614.00 777.00 898.00 834.00 990.50 1086.00 965.50 852.00 659.00 0.00 z 8842.00
1993 536.00 511.00 677.50 703.50 798.50 847.00 931.50 952.00 898.00 858.00 665.00 535.00 8913.00
1994 572.00 443.00 647.50 626.00 675.00 829.00 907.00 1045.50 958.50 837.00 505.50 474.50 8520.50
1995 531.00 620.50 659.50 647.50 675.50 752.00 911.50 1009.50 970.00 843.00 674.50 539.50 8834.00
1996 565.50 575.00 615.00 718.00 823.00 836.00 949.00 1012.00 920.19 d 766.50 655.50 558.50 8994.19
1997 566.00 504.50 710.00 695.50 878.50 845.00 928.50 1055.50 1076.50 902.50 710.50 540.50 9413.50
1998 0.00 z 482.50 602.00 566.00 0.00 z 0.00 z 925.00 1034.00 949.50 778.62 a 596.00 472.00 6405.62
1999 505.00 443.00 473.00 547.22 c 650.50 700.00 c 915.50 906.23 a 209.50 t 618.50 j 456.50 h 421.00 f 5140.46
2000 548.04 c 382.00 i 556.21 e 661.55 a 757.84 c 823.89 c 902.32 c 1004.83 b 919.66 a 766.70 c 385.00 h 539.63 d 7480.66
2001 435.00 439.38 b 589.50 569.46 b 738.66 b 806.50 903.13 a 921.98 b 845.89 b 820.97 b 587.22 c 468.58 e 8126.28
2002 459.83 d 208.00 n 238.00 p 542.00 616.50 728.50 851.50 874.00 585.00 j 749.00 704.50 495.50 6021.33
2003 691.00 494.50 524.02 e 381.50 i 455.00 j 378.00 o 420.00 q 367.50 t 0.00 z 716.50 f 595.20 e 0.00 z 2304.72
2004 321.50 j 310.00 i 298.00 p 137.00 y 821.50 e 626.00 f 599.50 k 542.00 m 491.50 o 447.50 m 534.50 245.50 p 1356.00
2005 387.50 i 521.50 392.50 k 406.00 j 523.50 i 599.50 g 706.00 g 652.00 j 493.50 m 0.00 z 393.50 m 249.50 q 521.50
2006 274.50 m 491.22 e 0.00 z 425.00 i 402.50 n 482.00 n 706.00 k 507.50 o 386.00 q 497.00 k 459.50 k 279.50 n 491.22
2007 318.50 i 341.00 g 414.00 j 461.00 f 449.50 l 450.00 l 587.50 k 601.50 m 409.00 q 404.50 p 326.50 p 239.50 p 0.00
2008 309.00 j 353.50 h 369.50 l 454.50 i 454.50 k 462.50 m 86.00 z 0.00 z 542.00 m 555.00 l 423.50 m 286.50 n 0.00
2009 500.00 f 488.00 569.50 495.00 g 750.00 800.50 969.00 999.50 962.00 755.50 605.00 475.00 7374.00
2010 527.00 485.50 603.00 567.00 649.50 701.50 809.00 863.50 821.00 759.50 610.50 540.50 7937.50
2011 567.50 428.00 553.50 649.50 698.53 a 725.00 909.00 899.50 849.50 781.00 579.11 b 425.50 8065.64
2012 525.50 495.50 566.00 623.50 764.50 750.00 884.50 1000.00 996.50 858.00 645.00 526.50 8635.50
2013 476.50 419.00 590.00 22.50 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 7.50 z 1485.50
Period of Record Statistics
MEAN 434.38 426.91 512.63 563.37 670.69 720.90 861.85 905.35 837.62 737.12 563.20 458.55 7628.70
S.D. 94.86 79.35 81.34 77.76 74.46 63.32 66.62 75.10 89.13 82.50 68.56 68.38 695.39
SKEW 0.08 -0.03 0.37 0.58 0.68 0.57 0.70 0.41 0.53 0.25 0.03 -0.01 0.60
MAX 691.00 620.50 710.00 777.00 898.00 867.00 1058.50 1086.00 1076.50 942.00 710.50 603.50 9413.50
MIN 194.00 237.00 384.50 415.50 501.50 625.50 728.50 771.50 651.00 546.50 413.50 320.00 6385.00
NO YRS 78 83 78 78 77 76 76 77 76 77 77 77 64