WHISKEYTOWN RESERVOIR, CALIFORNIA

Monthly Total Growing Degree Days

(049621)

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
1960 0.00 z 0.00 z 0.00 z 104.00 u 356.00 l 759.00 j 842.00 l 894.00 h 702.00 j 452.50 j 213.00 i 164.50 j 0.00
1961 143.00 m 149.50 k 190.00 i 368.50 k 431.00 i 856.50 g 890.00 j 967.50 g 465.00 p 499.50 k 234.00 i 80.00 k 0.00
1962 181.50 h 117.50 i 154.00 i 478.00 i 467.50 i 716.00 i 918.00 i 1169.65 e 714.50 h 665.93 d 425.40 e 175.00 l 2260.98
1963 103.00 h 224.50 j 184.00 j 177.50 i 544.00 i 635.50 j 738.00 j 786.50 k 738.00 h 535.00 h 290.19 d 121.00 k 290.19
1964 75.50 i 191.50 k 196.00 k 373.00 h 429.00 k 883.50 1225.50 1232.77 a 914.00 837.00 241.03 a 177.22 a 5511.02
1965 226.96 c 240.50 411.00 417.00 758.00 923.50 1202.50 1117.50 867.00 812.00 310.86 a 97.28 b 7384.10
1966 93.00 b 90.46 b 329.12 a 664.00 880.40 a 982.00 1108.50 1297.02 c 1034.46 b 804.00 381.00 171.50 7835.46
1967 170.50 302.50 246.00 167.50 802.00 952.00 1310.50 1398.50 1113.50 735.22 a 485.00 138.98 a 7822.20
1968 146.73 a 311.50 401.00 545.50 725.00 1046.50 1260.50 1030.50 1005.50 689.50 291.00 53.14 c 7506.38
1969 71.00 g 62.00 325.50 458.00 885.50 947.00 1278.00 1274.00 1053.00 575.50 491.38 a 263.00 7612.88
1970 200.47 a 306.00 374.00 414.00 806.00 1022.00 1304.50 1243.00 968.50 662.00 353.79 a 57.00 7711.26
1971 177.00 253.04 a 244.50 431.00 649.00 876.00 1282.00 1292.00 971.50 628.78 a 296.00 52.50 7153.32
1972 116.50 232.50 457.50 435.50 796.50 1021.50 1259.00 1241.66 c 900.00 625.50 264.50 83.00 7433.66
1973 69.00 220.50 238.50 589.00 908.50 1054.50 1290.50 1164.00 913.50 0.00 z 202.50 151.00 6801.50
1974 141.57 a 150.00 277.00 387.50 749.88 b 1004.00 1137.00 1204.00 1146.50 793.00 330.00 135.00 7455.45
1975 228.50 128.50 220.00 272.00 794.00 1008.00 1173.50 1116.50 1124.50 569.50 296.50 261.00 7192.50
1976 236.00 209.50 330.50 384.31 a 869.60 b 907.50 1234.50 972.00 955.50 782.50 514.00 303.00 7698.91
1977 201.50 340.50 267.00 618.00 528.00 1098.50 1220.00 1231.00 878.00 694.50 336.50 207.50 7621.00
1978 231.00 215.50 459.50 403.00 746.00 938.00 1199.50 1209.00 828.50 881.50 296.50 121.50 7529.50
1979 109.50 137.50 383.00 0.00 z 804.00 992.50 1188.50 1102.50 1051.00 702.00 282.50 246.00 6999.00
1980 219.50 279.00 318.00 501.50 718.50 800.50 1181.50 1163.02 a 965.00 788.50 412.00 300.70 a 7647.72
1981 248.50 266.50 335.00 582.50 794.00 1052.00 1215.50 1235.00 1019.50 605.00 387.50 180.50 7921.50
1982 87.00 202.00 239.50 392.50 843.50 922.00 1093.50 1158.50 876.50 629.50 231.00 129.50 6805.00
1983 185.50 171.00 257.00 343.00 758.50 927.00 1053.50 1149.50 968.50 750.50 246.50 103.50 6914.00
1984 286.50 243.50 453.00 442.50 796.00 967.50 1320.50 1187.50 1023.00 506.00 189.00 114.50 7529.50
1985 175.50 254.00 286.00 632.50 748.50 1078.50 1288.50 1103.00 782.00 633.00 253.00 274.00 7508.50
1986 254.50 257.00 499.00 534.50 766.50 1059.00 1184.00 1248.50 769.00 695.50 420.50 207.00 7895.00
1987 75.50 219.50 282.00 678.00 891.50 1074.50 1110.50 1247.50 1029.00 905.00 358.00 119.50 7990.50
1988 130.00 375.50 456.00 0.00 z 657.50 903.50 1284.00 1211.50 1056.00 916.00 250.50 222.00 7462.50
1989 155.00 132.00 275.00 574.00 646.50 992.00 1202.00 1117.50 897.00 601.00 436.00 289.00 7317.00
1990 157.50 171.50 433.00 666.00 698.50 942.50 1275.00 1192.50 1019.00 783.50 323.00 89.50 7751.50
1991 184.00 402.50 222.00 442.50 687.50 930.00 1334.50 1167.00 1185.00 952.00 426.00 203.00 8136.00
1992 131.50 290.50 415.00 580.50 995.50 981.00 1124.50 1252.00 997.00 745.50 304.50 69.00 7886.50
1993 75.50 104.50 430.00 409.00 651.50 877.50 1126.00 1150.00 1023.00 753.50 303.50 130.00 7034.00
1994 239.00 126.50 483.50 566.00 801.50 969.50 1355.00 1196.50 1028.00 669.50 106.50 37.00 7578.50
1995 140.50 348.00 263.00 429.50 690.50 852.00 1110.50 1164.00 1053.00 798.50 528.00 205.00 7582.50
1996 152.50 294.00 416.00 493.00 752.50 1030.00 1334.50 1317.50 972.50 692.50 395.50 184.50 8035.00
1997 167.00 265.00 493.00 452.00 934.50 990.00 1224.50 1168.00 972.00 653.50 350.50 157.00 7827.00
1998 136.50 87.00 367.00 446.50 484.00 867.00 1279.00 1311.00 1077.50 671.50 280.50 130.00 7137.50
1999 182.00 70.50 231.50 486.50 777.00 975.50 1183.50 1178.50 1114.50 836.00 394.50 235.08 a 7665.08
2000 155.00 b 176.00 415.50 606.50 776.00 1105.86 a 1197.50 1269.50 948.50 690.00 271.50 265.00 7876.86
2001 171.50 133.00 545.50 473.50 1011.50 1053.50 1249.00 1299.50 1097.50 865.50 344.50 105.00 8349.50
2002 119.00 286.00 371.50 623.50 790.00 1100.00 0.00 z 1250.50 1112.50 780.50 421.00 153.00 7007.50
2003 273.50 242.50 372.50 340.50 748.50 1148.50 1354.50 1171.00 1121.50 893.50 192.00 115.50 7974.00
2004 99.50 183.00 591.50 591.50 831.00 1080.00 1270.00 1221.00 1003.50 646.50 0.00 z 186.50 7704.00
2005 124.00 313.50 441.50 437.50 706.00 797.50 1315.00 1271.50 946.00 667.50 370.50 204.00 7594.50
2006 131.00 275.00 148.00 391.00 868.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1813.50
Period of Record Statistics
MEAN 165.98 223.08 357.25 482.57 774.47 979.38 1227.83 1202.26 994.80 728.28 332.20 164.95 7608.60
S.D. 56.44 85.23 101.71 113.35 105.64 84.02 77.87 78.89 96.49 104.99 92.12 73.11 346.88
SKEW 0.24 -0.08 0.14 -0.27 -0.26 -0.18 -0.31 -0.36 -0.33 0.22 0.08 0.20 -0.35
MAX 286.50 402.50 591.50 678.00 1011.50 1148.50 1355.00 1398.50 1185.00 952.00 528.00 303.00 8349.50
MIN 69.00 62.00 148.00 167.50 484.00 797.50 1053.50 972.00 769.00 506.00 106.50 37.00 6805.00
NO YRS 41 42 42 40 42 42 41 43 42 42 43 42 35