GRASS VALLEY NO 2, CALIFORNIA

Monthly Total Growing Degree Days

(043573)

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
1966 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 573.00 297.50 141.50 1012.00
1967 139.50 191.50 164.00 42.00 561.50 685.50 1059.50 1141.00 898.50 570.00 393.50 101.50 5948.00
1968 115.00 228.50 270.00 383.50 519.50 845.00 1022.50 837.00 828.50 527.50 240.00 62.50 5879.50
1969 121.00 29.00 213.50 319.50 659.50 721.00 1025.00 1022.00 859.50 432.50 347.00 155.00 5904.50
1970 153.00 232.50 275.00 243.50 651.52 a 816.50 1079.00 1015.00 784.50 549.00 289.50 53.50 6142.52
1971 164.00 175.00 191.50 283.00 446.00 685.50 1055.50 1062.00 800.50 456.50 220.50 26.50 5566.50
1972 104.50 173.00 366.50 330.00 600.50 823.00 1034.50 1001.00 703.00 505.00 158.50 90.00 5889.50
1973 53.00 150.00 117.50 409.50 708.00 854.00 1022.00 959.00 744.50 509.00 152.50 134.00 5813.00
1974 111.50 87.50 219.00 258.00 589.50 832.00 958.50 1008.00 928.50 661.50 257.00 96.00 6007.00
1975 180.50 92.50 127.50 149.50 591.00 802.00 941.50 902.50 937.00 440.50 215.50 177.50 5557.50
1976 150.50 135.50 147.50 192.50 642.00 700.00 950.00 737.50 756.00 580.00 393.00 157.50 5542.00
1977 89.00 200.50 117.50 424.50 310.00 863.50 923.50 984.00 701.50 571.50 261.00 179.00 5625.50
1978 135.00 129.50 334.00 235.00 524.00 670.50 937.00 929.50 654.83 a 656.50 141.50 51.50 5398.83
1979 43.50 67.50 217.00 300.50 585.50 741.50 913.00 870.50 833.50 540.00 195.50 181.00 5489.00
1980 156.50 188.50 140.50 329.00 466.00 573.50 921.00 878.00 735.50 566.50 267.50 204.00 5426.50
1981 192.50 184.50 161.00 382.50 574.00 854.50 964.50 958.50 791.00 388.00 285.00 153.00 5889.00
1982 39.50 151.50 133.50 240.50 582.50 662.50 876.00 910.00 660.50 455.50 160.00 67.00 4939.00
1983 159.00 137.50 176.50 208.00 552.00 728.00 763.50 936.50 786.50 578.50 171.50 118.50 5316.00
1984 174.50 115.50 288.00 266.00 620.00 711.00 1042.00 957.50 824.00 354.00 132.50 46.00 5531.00
1985 75.50 176.50 114.50 457.00 508.00 829.50 1001.50 831.50 591.50 500.00 153.50 169.00 5408.00
1986 235.00 208.00 363.00 322.76 a 552.00 821.50 906.00 979.50 556.50 536.50 238.00 i 119.50 5600.26
1987 50.00 143.00 217.00 509.00 642.50 814.50 795.00 905.00 753.00 652.00 228.50 80.50 5790.00
1988 119.50 290.50 289.50 358.00 452.50 722.50 1055.50 973.50 815.50 671.00 190.00 139.00 6077.00
1989 88.50 110.50 225.50 441.00 512.00 749.00 899.00 830.00 685.50 498.50 331.00 198.00 5568.50
1990 104.00 82.50 292.00 475.00 538.50 723.00 1013.00 939.50 785.50 610.50 252.50 75.50 5891.50
1991 105.00 285.50 89.50 284.00 430.00 677.50 1021.50 902.50 901.00 709.00 319.50 142.00 5867.00
1992 130.00 223.00 298.00 477.50 783.50 799.00 923.50 1027.00 801.50 623.00 253.50 53.00 6392.50
1993 88.00 72.00 329.00 312.00 537.00 703.00 908.50 919.50 804.00 609.00 228.50 107.50 5618.00
1994 155.00 66.00 302.50 365.00 554.00 754.50 1041.50 964.00 783.00 491.00 74.00 67.50 5618.00
1995 131.00 274.50 173.50 265.00 469.00 667.50 927.00 986.50 803.50 607.50 420.00 163.50 5888.50
1996 136.50 239.50 258.00 380.00 556.00 812.00 1102.00 1058.50 738.00 497.00 266.00 150.50 6194.00
1997 135.00 139.00 345.50 386.50 717.50 773.00 996.50 944.00 813.00 470.00 274.50 103.50 6098.00
1998 126.00 52.50 239.00 256.50 325.00 646.00 999.00 1039.00 808.50 457.00 156.00 118.50 5223.00
1999 121.50 77.50 140.50 320.00 544.00 730.00 919.50 905.00 858.00 643.00 319.50 142.00 5720.50
2000 100.50 138.50 249.00 428.00 581.00 875.00 901.00 992.00 724.50 0.00 z 145.50 165.50 5300.50
2001 90.50 76.50 333.50 257.50 807.50 828.50 995.50 1009.50 829.50 654.50 308.00 73.50 6264.50
2002 80.50 161.50 197.50 364.00 548.50 869.00 1086.50 971.00 830.00 511.00 320.50 106.50 6046.50
2003 237.50 92.00 247.00 169.00 537.00 854.50 1117.50 936.00 890.50 678.50 123.50 103.50 5986.50
2004 75.50 82.00 439.00 425.00 596.50 837.50 1026.50 970.00 771.50 490.50 179.00 126.00 6019.00
2005 65.50 177.00 275.00 281.00 534.50 641.00 1142.50 1057.00 701.50 526.00 0.00 z 0.00 z 5401.00
2006 112.00 163.00 71.50 305.36 b 691.41 c 880.00 c 591.00 n 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2223.27
Period of Record Statistics
MEAN 121.11 150.02 228.74 320.90 565.02 764.44 981.21 955.13 781.37 547.45 240.07 117.95 5764.88
S.D. 46.30 66.30 87.27 98.84 101.67 79.42 83.12 76.23 84.21 84.89 83.02 46.35 315.82
SKEW 0.47 0.30 0.21 -0.35 -0.06 -0.32 -0.39 -0.35 -0.52 -0.09 0.21 -0.07 -0.34
MAX 237.50 290.50 439.00 509.00 807.50 880.00 1142.50 1141.00 937.00 709.00 420.00 204.00 6392.50
MIN 39.50 29.00 71.50 42.00 310.00 573.50 763.50 737.50 556.50 354.00 74.00 26.50 4939.00
NO YRS 40 40 40 40 40 40 39 39 39 39 38 39 36