WHISKEYTOWN RESERVOIR, CALIFORNIA

Monthly Total Growing Degree Days

(049621)

Base Temperature = 50 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
1960 0.00 z 0.00 z 0.00 z 25.50 u 174.50 l 559.00 j 652.00 l 664.00 h 502.00 j 242.50 j 66.00 i 18.50 j 0.00
1961 12.00 m 18.00 k 37.00 i 182.00 k 212.00 i 626.50 g 680.00 j 727.50 g 325.00 p 299.50 k 82.00 i 0.50 k 0.00
1962 39.00 h 17.00 i 30.50 i 272.00 i 247.50 i 506.00 i 698.00 i 859.65 e 494.50 h 356.50 d 159.60 e 43.50 l 1375.75
1963 10.00 h 49.00 j 23.50 j 34.50 i 324.00 i 435.50 j 528.00 j 586.50 k 518.00 h 305.00 h 54.81 d 5.00 k 54.81
1964 2.50 i 36.00 k 49.50 k 161.50 h 233.00 k 583.50 915.50 922.77 a 614.00 527.00 46.03 a 23.25 a 3632.05
1965 49.27 c 38.00 113.00 189.50 448.00 623.50 892.50 807.50 567.00 502.00 68.79 a 3.21 b 4302.27
1966 0.00 b 0.00 b 119.87 a 368.00 570.40 a 682.00 798.50 987.02 c 734.46 b 494.00 133.50 5.50 4893.25
1967 16.00 69.50 34.00 8.00 498.00 653.50 1000.50 1088.50 813.50 425.22 a 210.00 33.07 a 4849.78
1968 45.47 a 81.00 131.00 252.00 419.00 746.50 950.50 720.50 705.50 383.00 51.00 0.00 c 4485.47
1969 5.00 g 0.00 108.50 180.00 575.50 647.00 968.00 964.00 753.00 268.50 207.93 a 27.00 4699.43
1970 14.47 a 77.00 120.50 132.50 502.00 722.00 994.50 933.00 668.50 365.50 86.90 a 0.00 4616.86
1971 39.50 60.15 a 45.00 146.50 339.00 576.50 972.00 982.00 674.00 353.92 a 56.50 0.00 4245.06
1972 3.00 36.00 185.00 151.00 489.50 721.50 949.00 931.66 c 600.00 321.50 37.00 6.50 4431.66
1973 0.00 17.00 31.50 290.50 598.50 754.50 980.50 854.00 613.50 0.00 z 35.00 2.00 4177.00
1974 4.13 a 4.50 67.50 136.00 447.36 b 704.00 827.00 894.00 846.50 484.00 67.50 4.00 4486.50
1975 63.50 20.00 26.50 64.00 484.00 708.00 863.50 806.50 824.50 268.50 78.00 43.00 4250.00
1976 61.50 27.50 88.50 124.66 a 559.60 b 607.50 924.50 662.00 655.50 472.50 225.50 51.50 4460.76
1977 28.50 104.00 52.00 318.50 225.50 798.50 910.00 921.00 578.00 386.00 102.50 15.00 4439.50
1978 10.50 46.00 170.00 149.00 436.00 638.00 889.50 899.00 528.50 571.50 94.50 5.00 4437.50
1979 0.50 5.50 133.50 0.00 z 494.00 692.50 878.50 792.50 751.00 396.00 53.00 44.50 4241.50
1980 37.50 25.00 58.50 215.00 408.50 500.50 871.50 853.02 a 665.00 478.50 124.00 70.27 a 4307.28
1981 24.00 41.00 73.50 286.50 484.00 752.00 905.50 925.00 719.50 298.50 137.00 0.50 4647.00
1982 1.50 25.00 30.50 161.00 533.50 622.00 783.50 848.50 576.50 321.00 41.50 1.00 3945.50
1983 18.00 4.00 24.50 86.00 454.00 627.00 743.50 839.50 668.50 440.50 46.50 0.00 3952.00
1984 83.50 59.00 153.50 169.50 486.00 667.50 1010.50 877.50 723.00 224.00 7.50 5.50 4467.00
1985 9.50 87.00 71.50 339.50 438.50 778.50 978.50 793.00 482.00 329.00 78.50 43.00 4428.50
1986 16.50 63.00 224.50 243.00 463.50 759.00 874.00 938.50 469.50 385.50 144.00 9.00 4590.00
1987 0.00 29.00 40.00 379.50 582.00 774.50 800.50 937.50 729.00 595.00 90.00 13.00 4970.00
1988 19.00 119.00 156.50 0.00 z 354.50 604.00 974.00 901.50 756.00 606.00 47.50 55.50 4593.50
1989 26.00 11.50 39.00 311.00 336.50 692.00 892.00 807.50 597.00 299.50 171.00 42.00 4225.00
1990 0.50 58.00 173.50 366.00 388.50 642.50 965.00 882.50 719.00 473.50 84.00 7.50 4760.50
1991 17.50 147.00 37.50 153.00 379.00 630.00 1024.50 857.00 885.00 645.00 159.00 8.00 4942.50
1992 2.00 77.00 132.50 280.50 685.50 681.00 814.50 942.00 697.00 435.50 72.50 1.00 4821.00
1993 0.00 4.00 147.50 125.00 341.50 578.50 816.00 840.00 723.00 443.50 90.50 0.00 4109.50
1994 43.00 0.00 193.00 282.00 491.50 669.50 1045.00 886.50 728.00 359.50 10.00 0.00 4708.00
1995 3.00 119.50 40.00 150.50 386.50 552.00 800.50 854.00 753.00 488.50 232.00 10.00 4389.50
1996 18.00 96.00 142.50 214.50 442.50 730.00 1024.50 1007.50 672.50 396.50 108.50 9.50 4862.50
1997 13.00 37.50 214.50 166.00 624.50 690.00 914.50 858.00 672.00 345.00 96.50 16.00 4647.50
1998 1.50 0.00 100.50 193.00 181.00 567.00 969.00 1001.00 777.50 361.50 24.00 21.00 4197.00
1999 9.50 0.00 24.50 237.00 468.00 675.50 873.50 868.50 814.50 526.00 129.00 45.98 a 4671.98
2000 2.14 b 8.50 158.00 310.00 466.50 805.86 a 887.50 959.50 648.50 382.00 55.00 29.00 4712.50
2001 25.00 12.50 262.50 202.00 701.50 753.50 939.00 989.50 797.50 555.50 110.00 0.00 5348.50
2002 1.00 75.50 117.50 335.50 482.50 800.00 0.00 z 940.50 812.50 470.50 124.00 5.00 4164.50
2003 29.00 20.50 82.50 83.50 439.50 848.50 1044.50 861.00 821.50 583.50 5.50 0.50 4820.00
2004 0.00 4.00 310.00 296.00 521.00 780.00 960.00 911.00 703.50 352.50 0.00 z 10.00 4848.00
2005 7.00 60.50 163.00 160.00 401.00 497.50 1005.00 961.50 646.00 362.50 118.00 19.50 4401.50
2006 5.50 76.50 7.00 167.50 558.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 815.00
Period of Record Statistics
MEAN 18.28 43.97 109.64 210.58 466.34 679.46 917.83 892.26 694.87 422.24 94.75 16.34 4537.81
S.D. 20.35 38.80 71.15 91.36 104.35 83.96 77.87 78.89 96.45 101.19 57.98 18.72 303.18
SKEW 1.37 0.72 0.67 0.10 -0.24 -0.18 -0.31 -0.36 -0.33 0.29 0.68 1.17 0.23
MAX 83.50 147.00 310.00 379.50 701.50 848.50 1045.00 1088.50 885.00 645.00 232.00 70.27 5348.50
MIN 0.00 0.00 7.00 8.00 181.00 497.50 743.50 662.00 469.50 224.00 5.50 0.00 3945.50
NO YRS 41 42 42 40 42 42 41 43 42 42 43 42 35