WILLOW CREEK 1 NW, CALIFORNIA

Monthly Total Growing Degree Days

(049694)

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
1968 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 87.00 z 0.00 z 0.00 z 82.00 82.00
1969 22.00 69.00 267.50 367.50 767.50 868.50 1070.00 989.50 886.50 472.00 304.00 209.00 6293.00
1970 222.50 291.00 380.00 329.00 685.00 881.50 1055.00 992.00 782.50 536.96 c 206.00 l 33.00 j 6155.46
1971 69.50 k 76.00 k 123.00 i 345.00 610.50 706.00 1042.00 1049.00 759.83 a 459.83 a 230.56 c 32.00 5234.72
1972 84.00 201.88 c 434.50 388.33 c 694.00 873.50 1085.00 1068.00 768.00 572.00 197.50 i 49.50 p 6169.22
1973 96.10 a 218.50 256.50 465.50 734.50 882.41 a 1084.00 1011.50 819.50 533.41 b 273.50 205.12 a 6580.54
1974 142.00 144.00 324.50 426.00 591.50 879.00 985.00 1021.50 886.50 507.00 160.00 k 55.50 k 5907.00
1975 36.50 k 49.50 j 109.10 e 212.50 606.50 840.00 972.00 929.50 870.00 433.47 b 126.43 b 88.50 5187.99
1976 55.28 a 87.00 198.00 264.00 576.50 679.00 1015.00 936.50 872.50 611.45 b 365.40 e 43.50 5704.13
1977 34.00 226.80 c 202.50 488.33 c 473.00 964.00 1033.50 1137.50 808.50 389.50 j 220.00 f 155.00 j 5368.13
1978 130.00 n 149.00 k 386.50 g 226.00 m 431.50 i 852.00 1074.50 1049.50 737.14 b 516.50 i 152.00 l 38.50 k 3713.14
1979 75.50 i 102.00 j 228.50 k 231.50 l 379.50 m 807.93 a 1004.92 a 875.75 a 851.50 504.00 g 129.00 m 68.50 m 3540.10
1980 113.00 252.00 238.50 424.50 0.00 z 0.00 z 1002.50 0.00 z 0.00 z 604.00 280.71 b 176.38 b 3091.59
1981 217.52 a 219.33 a 298.50 469.82 b 611.50 806.50 1004.50 1002.00 750.50 393.18 a 327.86 b 229.18 c 6330.39
1982 28.00 192.00 226.50 341.50 655.00 838.50 896.50 979.00 772.00 523.00 194.46 b 92.00 5738.46
1983 116.50 193.20 c 312.50 343.50 710.50 802.50 910.00 1018.50 820.00 620.00 257.50 156.50 6261.20
1984 126.50 j 124.00 i 290.00 i 363.50 615.00 771.50 1124.00 947.50 778.50 440.00 180.00 52.00 5272.00
1985 60.50 i 124.00 i 122.00 k 536.50 634.50 942.00 1180.00 995.50 748.50 539.00 128.00 f 88.00 5664.00
1986 149.50 k 193.50 i 322.50 k 337.00 i 658.00 972.41 a 1014.50 1166.50 693.50 626.50 293.00 141.50 5565.91
1987 58.50 k 212.00 234.50 j 444.50 i 757.50 964.00 939.50 1111.50 754.14 a 712.00 311.50 124.00 a 5886.14
1988 66.50 l 172.50 i 366.00 369.00 i 599.85 a 758.50 1130.00 1098.50 883.50 729.00 282.50 76.50 5924.35
1989 43.50 k 79.50 i 324.50 614.00 651.50 874.00 924.00 1006.00 841.50 542.00 315.50 74.00 k 6093.00
1990 78.00 j 61.50 i 393.00 427.00 i 606.00 812.00 1143.50 1047.00 888.00 589.00 224.00 50.50 5753.00
1991 81.50 j 198.00 k 145.00 j 420.00 573.50 753.50 1173.00 1038.00 988.50 699.50 212.00 k 86.50 5732.50
1992 96.50 j 192.00 k 333.50 i 560.69 a 823.00 923.00 1053.00 1079.50 854.00 645.00 197.00 j 57.35 a 5995.54
1993 65.00 l 102.50 j 454.00 413.00 654.50 749.50 926.00 1010.00 838.50 427.50 j 165.00 55.00 m 5210.50
1994 114.00 l 97.00 i 265.50 i 315.00 j 549.00 f 785.50 1160.00 968.50 873.50 522.00 112.50 93.50 4515.50
1995 150.00 k 234.50 i 309.50 292.50 j 648.50 789.00 1059.50 978.00 897.50 593.50 426.50 190.00 l 5702.00
1996 195.50 288.50 364.00 485.50 640.00 827.00 1213.00 1086.50 811.03 a 564.00 341.00 160.00 6976.03
1997 166.00 209.00 369.50 437.00 784.00 810.50 1049.00 1033.50 820.50 520.00 345.00 67.50 6611.50
1998 106.50 j 90.50 i 295.00 386.00 470.17 a 794.50 1056.50 1083.00 936.00 519.00 279.50 73.50 5893.17
1999 112.52 d 87.77 b 244.00 392.50 543.65 d 735.00 a 967.72 a 999.00 807.60 e 499.10 a 281.50 g 57.50 g 5388.85
2000 86.50 k 151.00 i 217.50 h 335.00 j 432.50 i 679.50 h 631.50 j 994.30 d 816.00 e 395.50 f 125.50 f 65.00 h 1810.30
2001 39.00 j 56.50 i 266.00 i 229.00 i 522.50 j 525.00 h 988.42 e 988.56 d 814.80 e 596.15 e 192.00 i 53.50 k 3387.93
2002 41.00 j 152.00 k 175.50 l 341.00 j 386.50 j 481.50 l 697.50 k 531.50 n 468.00 m 321.50 l 162.50 l 91.00 r 0.00
2003 191.50 k 113.50 k 227.50 k 153.50 o 236.50 r 0.00 z 801.00 i 702.50 j 403.50 p 451.50 i 111.00 p 99.00 l 0.00
2004 97.00 k 126.00 l 344.50 i 367.00 i 446.50 j 648.50 g 703.00 k 0.00 z 0.00 z 0.00 z 165.00 j 84.50 l 0.00
2005 71.50 m 146.00 k 303.50 g 269.50 k 302.50 o 399.50 n 724.50 k 634.50 l 469.00 l 228.50 q 150.00 i 100.50 h 0.00
2006 77.00 n 106.50 m 99.00 l 252.50 m 350.50 p 415.00 p 339.50 u 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
Period of Record Statistics
MEAN 114.64 192.80 303.24 411.92 643.54 831.44 1041.75 1021.60 825.95 557.22 268.40 108.41 6311.91
S.D. 67.68 68.39 84.56 91.85 84.76 75.79 82.18 62.04 63.40 82.73 79.84 57.97 431.69
SKEW 0.21 -0.52 -0.25 0.10 0.06 0.15 0.19 0.18 0.27 0.22 -0.29 0.72 -0.14
MAX 222.50 291.00 454.00 614.00 823.00 972.41 1213.00 1166.50 988.50 729.00 426.50 229.18 6976.03
MIN 22.00 69.00 109.10 212.50 470.17 679.00 896.50 875.75 693.50 393.18 112.50 32.00 5704.13
NO YRS 14 15 21 23 27 30 32 32 32 28 21 22 8