FOLSOM DAM, CALIFORNIA

Monthly Total Growing Degree Days

(043113)

Base Temperature = 50 F

File last updated on Jul 24, 2006
*** 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 68.00 z 115.50 64.50 180.00
1956 28.50 24.50 166.00 283.50 470.50 705.50 844.50 762.00 718.50 425.50 205.50 29.50 4664.00
1957 12.00 110.00 164.50 289.50 404.50 787.50 869.50 797.00 724.00 408.00 129.00 19.00 4714.50
1958 15.00 152.50 69.00 290.00 548.50 614.00 810.50 971.69 b 754.50 608.12 a 238.00 124.00 5195.81
1959 67.50 43.00 251.50 405.50 411.00 728.79 a 947.00 814.50 614.00 547.50 241.50 51.50 5123.29
1960 33.50 37.50 200.00 275.50 440.00 796.55 a 935.50 806.50 707.50 436.50 123.00 37.00 4829.05
1961 16.50 69.50 100.00 297.50 353.50 777.00 944.50 884.50 635.00 502.95 b 116.00 9.00 4705.95
1962 14.00 26.00 75.50 380.00 392.00 670.00 815.00 785.00 649.00 373.50 190.00 31.00 4401.00
1963 6.00 165.50 105.50 115.00 382.00 607.50 749.00 815.50 734.50 453.50 82.50 0.00 4216.50
1964 0.00 43.00 90.50 206.50 358.50 564.00 829.50 822.00 591.00 553.00 62.00 69.50 4189.50
1965 4.50 52.50 121.00 231.00 455.50 506.00 776.00 828.00 550.50 575.50 189.00 1.50 4291.00
1966 16.00 23.00 164.50 403.00 520.50 684.00 733.50 889.00 663.50 475.00 191.00 20.50 4783.50
1967 24.50 30.00 100.50 22.50 470.00 562.50 936.50 968.50 766.00 524.50 278.00 15.00 4698.50
1968 12.00 144.00 184.50 287.00 434.00 739.50 855.00 724.50 683.50 422.50 98.50 5.50 4590.50
1969 14.00 13.50 128.00 221.50 512.00 572.00 866.00 919.00 752.50 372.00 217.50 47.50 4635.50
1970 68.50 85.00 184.00 175.50 522.00 636.00 881.00 784.00 678.00 381.00 164.00 12.00 4571.00
1971 6.00 12.50 87.50 161.00 294.00 562.00 847.00 894.00 707.00 379.50 108.00 0.00 4058.50
1972 0.50 87.00 260.50 234.00 504.00 672.50 846.50 835.00 598.50 374.00 59.50 7.00 4479.00
1973 12.50 66.00 51.00 310.50 590.00 750.50 821.50 764.00 598.00 408.50 93.00 11.50 4477.00
1974 28.00 26.00 135.00 197.50 459.50 693.50 807.00 806.50 731.90 a 562.00 114.50 8.50 4569.90
1975 4.50 40.50 64.50 100.00 487.50 617.50 760.53 a 762.60 a 721.50 321.00 94.50 14.00 3988.63
1976 40.00 75.00 119.00 156.00 533.50 629.50 814.00 680.50 685.00 564.50 243.00 42.50 4582.50
1977 7.00 112.00 81.00 411.50 165.00 j 764.00 849.00 845.50 651.50 520.50 180.50 66.50 4489.00
1978 62.00 82.00 263.50 201.00 509.50 634.50 851.50 860.50 638.00 607.50 126.50 2.50 4839.00
1979 12.00 18.50 160.50 236.50 520.50 699.50 825.50 767.00 780.00 457.00 138.50 64.00 4679.50
1980 43.50 115.00 107.50 275.00 410.00 525.50 842.50 743.50 654.50 557.00 230.00 37.00 4541.00
1981 57.50 96.50 109.50 290.50 521.50 835.50 863.00 808.00 700.50 372.50 227.00 33.00 4915.00
1982 0.00 73.00 110.00 227.50 517.00 548.00 795.00 814.50 657.50 454.50 72.50 10.50 4280.00
1983 16.50 76.00 124.00 173.50 464.50 654.00 754.00 871.50 0.00 z 558.00 130.50 51.50 3874.00
1984 31.50 52.00 227.50 226.00 597.50 679.50 975.50 876.78 a 824.50 334.00 92.50 23.00 4940.28
1985 0.00 103.70 a 68.50 376.00 473.00 807.00 941.50 718.00 566.00 430.00 110.00 19.00 4612.70
1986 81.50 145.00 285.50 299.00 0.00 z 705.00 819.50 0.00 z 513.50 502.50 247.50 21.00 3620.00
1987 14.00 83.50 115.00 438.50 609.50 698.00 688.50 0.00 z 681.50 622.00 165.00 0.00 z 4115.50
1988 38.50 170.50 244.00 337.50 433.50 680.00 998.50 844.00 724.50 554.00 152.00 65.00 5242.00
1989 6.00 50.00 186.50 413.00 515.00 686.50 874.00 782.50 613.00 427.00 196.50 31.00 4781.00
1990 30.00 46.50 219.00 400.50 482.00 686.50 916.50 871.00 741.00 571.00 138.00 12.00 5114.00
1991 12.00 150.00 56.50 225.50 382.00 631.00 898.50 763.50 805.50 647.50 233.50 27.00 4832.50
1992 10.00 120.50 218.00 385.00 669.00 697.50 842.50 917.00 731.00 575.00 160.50 11.00 5337.00
1993 7.50 40.00 267.00 266.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 580.50
Period of Record Statistics
MEAN 22.46 75.29 149.11 269.08 475.64 670.50 849.33 822.79 681.84 482.66 156.70 29.58 4663.00
S.D. 21.28 45.90 68.14 97.45 79.01 81.61 69.29 67.67 71.79 89.90 59.83 26.29 329.00
SKEW 1.23 0.53 0.46 -0.20 0.08 -0.05 0.05 0.27 -0.27 -0.01 0.23 1.45 0.03
MAX 81.50 170.50 285.50 438.50 669.00 835.50 998.50 971.69 824.50 647.50 278.00 124.00 5337.00
MIN 0.00 12.50 51.00 22.50 294.00 506.00 688.50 680.50 513.50 321.00 59.50 0.00 3988.63
NO YRS 38 38 38 38 35 37 37 35 36 37 38 37 33