GILROY, CALIFORNIA

Monthly Total Growing Degree Days

(043417)

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
1957 0.00 z 0.00 z 0.00 z 0.00 z 180.00 v 672.50 h 948.00 885.00 855.50 653.30 d 374.50 258.33 d 3974.63
1958 217.50 399.00 344.50 517.00 745.66 c 809.46 b 943.50 1009.00 950.50 802.00 455.50 394.00 7587.62
1959 349.50 278.00 534.50 650.00 642.00 846.00 982.50 945.50 819.50 747.00 449.00 287.50 7531.00
1960 219.50 294.00 497.00 532.00 671.00 895.00 989.00 883.50 839.50 632.50 389.00 207.50 7049.50
1961 210.50 339.00 365.50 538.00 585.38 a 879.00 1026.00 995.00 810.00 681.50 367.50 193.50 6990.88
1962 167.50 264.50 320.00 588.50 601.00 769.50 845.50 936.50 785.00 678.00 472.50 289.50 6718.00
1963 134.50 471.00 353.00 402.50 632.00 750.50 872.50 907.50 921.50 714.00 383.00 155.00 6697.00
1964 171.00 235.50 335.50 454.50 568.00 746.00 910.00 919.50 763.00 769.00 336.00 303.50 6511.50
1965 223.00 284.50 402.00 500.00 624.00 675.50 898.50 987.00 747.50 768.50 426.50 131.50 6668.50
1966 179.00 225.50 445.50 636.00 689.00 820.00 872.50 969.00 831.00 690.50 444.00 233.50 7035.50
1967 233.00 294.00 394.00 299.50 706.00 730.00 986.50 979.00 923.00 711.00 504.00 152.00 6912.00
1968 181.50 434.00 461.50 523.50 627.50 833.50 942.00 907.50 844.00 663.00 432.50 167.50 7018.00
1969 202.00 219.00 395.50 486.50 712.00 772.50 932.50 959.00 858.00 602.00 423.00 312.00 6874.00
1970 327.50 336.00 449.50 394.00 730.57 a 789.00 944.50 872.00 834.00 609.00 452.50 234.50 6973.07
1971 228.00 263.00 381.50 457.00 604.50 792.50 925.50 988.00 884.00 558.50 349.50 123.50 6555.50
1972 128.50 363.00 546.00 516.00 738.00 832.00 1000.50 954.28 a 835.00 683.00 357.50 181.50 7135.28
1973 203.00 346.50 320.00 565.00 755.00 912.00 925.00 918.00 836.50 670.50 379.00 270.50 7101.00
1974 228.00 241.00 458.50 502.50 668.50 862.00 979.00 969.00 934.00 750.00 420.50 221.50 7234.50
1975 237.50 308.00 383.50 399.00 743.50 811.00 934.00 926.00 904.00 655.50 376.50 287.50 6966.00
1976 273.50 329.50 429.00 484.00 765.50 876.00 972.00 928.00 902.50 763.50 496.00 252.50 7472.00
1977 214.50 394.50 348.00 619.00 581.50 847.50 988.50 1005.00 867.50 755.50 489.00 434.00 7544.50
1978 364.00 364.00 583.50 478.50 773.50 864.50 974.29 c 990.50 891.72 a 802.50 369.50 103.50 g 7456.51
1979 192.50 256.00 466.50 559.00 787.50 901.61 b 1012.50 954.00 1002.50 774.50 413.50 302.25 a 7622.36
1980 362.00 428.00 413.50 564.50 618.00 753.00 973.00 922.50 840.00 b 772.50 411.00 302.50 7360.50
1981 309.50 0.00 z 0.00 z 590.69 a 760.00 1037.00 995.21 b 1006.00 902.59 a 659.50 523.00 317.00 7100.48
1982 169.00 370.00 423.50 518.50 729.00 780.50 942.00 973.00 842.50 681.50 354.50 242.50 7026.50
1983 246.00 380.00 466.00 481.00 733.00 856.50 963.50 1037.00 967.00 772.00 416.50 369.50 7688.00
1984 268.50 307.50 519.50 494.50 835.00 794.50 1024.50 964.00 1008.00 638.50 346.00 185.50 7386.00
1985 157.50 282.00 336.00 620.50 670.00 878.50 985.00 896.00 786.50 613.11 d 315.00 110.00 j 6540.11
1986 388.00 0.00 z 561.00 550.00 700.50 828.00 0.00 z 904.50 703.97 a 701.78 b 465.00 268.00 6070.74
1987 218.50 0.00 z 412.50 655.00 768.50 0.00 z 844.00 892.50 872.50 830.50 0.00 z 243.00 5737.00
1988 286.50 376.50 0.00 z 582.00 653.21 c 802.00 1016.50 959.00 876.50 766.50 460.50 270.00 7049.21
1989 208.00 269.50 558.00 701.00 731.50 0.00 z 981.50 924.00 853.50 716.00 480.00 279.50 6702.50
1990 283.50 251.50 0.00 z 684.50 733.50 879.00 1028.00 995.00 886.50 816.50 425.50 150.50 7134.00
1991 288.00 475.50 380.00 511.50 649.00 744.00 925.00 950.50 900.50 836.50 504.00 266.50 7431.00
1992 245.50 447.00 538.00 703.50 839.00 816.50 1007.00 1041.00 891.00 836.00 473.00 221.50 8059.00
1993 245.50 298.50 588.00 587.50 771.00 872.50 926.50 1009.50 880.50 794.00 436.00 259.00 7668.50
1994 314.00 290.00 546.00 613.50 731.00 856.50 898.50 982.00 853.00 719.00 314.50 220.00 7338.00
1995 405.50 444.00 462.50 554.50 657.50 812.50 1022.50 994.00 892.00 796.50 628.50 427.00 8097.00
1996 375.00 463.50 547.50 698.50 848.00 915.00 1143.50 1033.00 867.50 722.00 480.00 360.00 8453.50
1997 345.50 395.00 581.50 670.00 926.00 866.00 1023.50 1047.50 1004.00 742.50 568.50 277.00 8447.00
1998 381.00 325.50 523.50 539.50 607.00 789.50 0.00 z 1058.00 936.00 668.00 468.00 205.00 6501.00
1999 0.00 z 311.11 a 409.50 520.34 a 660.00 788.00 944.00 953.00 864.00 822.00 512.07 a 335.50 7119.52
2000 366.00 416.00 499.00 643.00 0.00 z 0.00 z 887.50 972.50 870.00 686.50 347.50 337.26 b 6025.26
2001 238.00 304.50 555.93 a 493.50 918.50 942.50 951.50 976.00 0.00 z 786.37 a 538.97 a 330.50 7036.27
2002 259.00 384.00 485.50 604.00 716.50 841.00 958.50 936.00 938.50 715.50 551.50 372.50 7762.50
2003 465.50 344.00 530.00 484.00 745.00 861.00 1015.25 e 992.50 942.50 847.00 424.00 339.00 7989.75
2004 303.00 342.50 687.50 661.50 807.00 887.50 986.00 985.00 907.50 673.65 e 406.00 340.40 e 7987.56
2005 321.50 425.00 563.50 553.50 779.50 814.00 1017.00 1014.00 812.50 742.00 546.50 309.00 g 7589.00
2006 343.77 c 396.00 377.34 b 413.00 f 806.00 a 927.86 b 689.50 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2850.97
Period of Record Statistics
MEAN 264.15 340.58 460.43 549.64 715.52 833.88 963.07 963.38 873.72 724.30 436.59 267.66 7339.79
S.D. 78.53 70.77 88.33 87.90 84.08 64.77 55.60 46.11 63.30 69.82 70.44 75.88 511.36
SKEW 0.43 0.19 0.24 -0.28 0.37 0.33 0.21 -0.02 -0.10 -0.16 0.38 0.11 0.44
MAX 465.50 475.50 687.50 703.50 926.00 1037.00 1143.50 1058.00 1008.00 847.00 628.50 434.00 8453.50
MIN 128.50 219.00 320.00 299.50 568.00 675.50 844.00 872.00 703.97 558.50 314.50 123.50 6511.50
NO YRS 48 46 46 48 48 46 47 49 48 49 48 46 35