FOLSOM DAM, CALIFORNIA

Monthly Total Growing Degree Days

(043113)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 199304
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
1955 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 118.00 z 343.00 334.00 677.00
1956 276.50 217.00 458.00 572.50 780.50 1005.50 1154.50 1072.00 1018.50 733.00 499.00 233.50 8020.50
1957 178.00 357.00 470.50 589.50 714.50 1087.50 1179.50 1107.00 1024.00 718.00 426.00 209.00 8060.50
1958 204.50 421.00 356.00 580.50 858.50 914.00 1120.50 1281.69 b 1054.50 918.12 a 506.00 425.00 8640.31
1959 302.00 271.50 560.00 705.50 721.00 1028.79 a 1257.00 1124.50 914.00 857.50 541.50 302.00 8585.29
1960 208.50 304.50 503.50 571.50 750.00 1096.55 a 1245.50 1116.50 1007.50 746.50 397.50 218.00 8166.05
1961 131.50 339.50 402.50 592.00 663.50 1077.00 1254.50 1194.50 935.00 812.95 b 398.00 143.00 7943.95
1962 119.50 224.00 346.50 680.00 702.00 970.00 1125.00 1095.00 949.00 683.50 471.50 207.00 7573.00
1963 99.00 445.50 393.00 393.50 690.50 907.50 1059.00 1125.50 1034.50 763.50 340.00 47.00 7298.50
1964 134.50 295.00 336.00 493.50 666.00 864.00 1139.50 1132.00 891.00 863.00 306.50 303.50 7424.50
1965 164.50 263.50 421.00 514.00 765.50 806.00 1086.00 1138.00 850.50 885.50 475.50 77.50 7447.50
1966 205.00 221.50 444.00 703.00 830.50 984.00 1043.50 1199.00 963.50 785.00 475.50 181.50 8036.00
1967 195.50 224.50 373.00 283.00 780.00 862.50 1246.50 1278.50 1066.00 834.50 560.00 171.50 7875.50
1968 166.00 417.00 489.50 587.00 742.00 1039.50 1165.00 1034.50 983.50 732.50 381.00 160.00 7897.50
1969 131.00 181.50 391.50 517.00 822.00 872.00 1176.00 1229.00 1052.50 682.00 516.50 299.50 7870.50
1970 307.50 345.50 476.50 465.50 832.00 936.00 1191.00 1094.00 978.00 691.00 459.00 161.00 7937.00
1971 149.00 188.00 345.00 453.00 604.00 862.00 1157.00 1204.00 1007.00 676.00 396.50 113.00 7154.50
1972 70.50 332.50 563.50 527.00 814.00 972.50 1156.50 1145.00 898.50 684.00 297.50 100.50 7562.00
1973 160.00 332.50 311.00 609.00 900.00 1050.50 1131.50 1074.00 898.00 718.50 347.50 224.50 7757.00
1974 210.00 252.00 418.50 487.00 769.50 993.50 1117.00 1116.50 1031.90 a 872.00 398.50 177.00 7843.40
1975 103.00 257.00 327.50 364.50 794.50 917.50 1070.53 a 1072.60 a 1021.50 630.00 312.50 215.50 7086.63
1976 237.00 317.50 392.50 447.00 843.50 929.50 1124.00 990.50 985.00 874.50 533.00 320.00 7994.00
1977 116.00 362.50 349.00 711.50 375.00 j 1064.00 1159.00 1155.50 951.50 830.50 461.00 340.50 7501.00
1978 341.00 328.50 573.50 496.00 819.50 934.50 1161.50 1170.50 938.00 917.50 384.00 126.50 8191.00
1979 194.00 240.00 456.50 535.00 830.50 999.50 1135.50 1077.00 1080.00 767.00 426.00 322.50 8063.50
1980 273.00 397.00 406.50 573.50 718.50 825.50 1152.50 1053.50 954.50 867.00 530.00 271.50 8023.00
1981 258.50 356.50 413.00 588.00 831.50 1135.50 1173.00 1118.00 1000.50 682.50 516.50 309.00 8382.50
1982 115.50 321.00 392.50 508.00 827.00 848.00 1105.00 1124.50 957.50 764.50 313.00 217.50 7494.00
1983 146.50 352.50 430.50 473.00 774.50 954.00 1064.00 1181.50 0.00 z 868.00 399.50 318.50 6962.50
1984 236.50 305.00 537.50 525.50 907.50 979.50 1285.50 1186.78 a 1124.50 638.50 372.00 203.50 8302.28
1985 94.00 314.74 a 335.00 676.00 783.00 1107.00 1251.50 1028.00 866.00 740.00 326.50 118.00 7639.74
1986 347.50 397.00 590.50 599.00 0.00 z 1005.00 1129.50 0.00 z 813.50 812.50 544.00 228.00 6466.50
1987 200.00 345.50 390.00 738.50 919.50 998.00 998.50 0.00 z 981.50 932.00 454.50 0.00 z 6958.00
1988 257.00 451.00 551.50 637.50 743.50 980.00 1308.50 1154.00 1024.50 864.00 438.50 262.00 8672.00
1989 143.00 225.50 487.50 713.00 825.00 986.50 1184.00 1092.50 913.00 737.00 488.50 203.50 7999.00
1990 220.50 207.00 511.50 700.50 792.00 986.50 1226.50 1181.00 1041.00 881.00 416.00 143.00 8306.50
1991 228.50 429.50 323.00 525.50 692.00 931.00 1208.50 1073.50 1105.50 957.50 530.00 236.00 8240.50
1992 147.00 401.00 527.00 685.00 979.00 997.50 1152.50 1227.00 1031.00 885.00 435.00 153.00 8620.00
1993 179.50 284.50 577.00 566.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1607.00
Period of Record Statistics
MEAN 190.82 313.86 437.67 562.82 785.34 970.50 1159.33 1132.79 981.84 792.06 432.03 218.28 7942.67
S.D. 69.93 75.16 82.70 104.63 79.22 81.61 69.30 67.67 71.79 90.70 76.55 84.59 415.13
SKEW 0.48 0.04 0.30 -0.35 0.08 -0.05 0.05 0.27 -0.27 -0.03 -0.10 0.19 -0.15
MAX 347.50 451.00 590.50 738.50 979.00 1135.50 1308.50 1281.69 1124.50 957.50 560.00 425.00 8672.00
MIN 70.50 181.50 311.00 283.00 604.00 806.00 998.50 990.50 813.50 630.00 297.50 47.00 7086.63
NO YRS 38 38 38 38 35 37 37 35 36 37 38 37 33