FOLSOM DAM, CALIFORNIA

Monthly Total Heating Degree Days

(043113)

Base Temperature = 65 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 14.00 z 407.00 441.00 848.00
1956 498.50 508.50 317.00 196.00 71.50 7.50 0.50 0.00 0.00 115.50 260.00 551.50 2526.50
1957 606.50 343.00 306.50 185.00 95.50 2.50 0.00 0.00 1.50 76.50 324.00 572.50 2513.50
1958 572.00 279.00 419.00 189.00 34.50 9.50 0.00 0.00 b 2.50 17.57 a 249.00 350.00 2122.07
1959 473.00 428.50 216.00 66.50 98.50 0.00 a 0.00 4.00 16.50 40.00 208.50 476.50 2028.00
1960 577.50 420.50 279.50 196.50 86.50 0.00 a 0.00 0.00 0.00 73.50 360.00 563.00 2557.00
1961 696.00 360.50 372.50 182.00 120.00 6.50 0.00 0.00 10.00 110.64 b 352.00 643.50 2853.64
1962 701.00 484.00 428.50 114.50 106.00 10.50 0.00 0.00 2.50 118.50 284.00 569.50 2819.00
1963 706.00 254.50 382.00 356.50 117.00 6.50 2.50 0.00 1.50 69.50 410.00 757.50 3063.50
1964 640.50 430.00 439.50 269.50 141.00 46.50 1.50 0.00 19.00 52.00 443.50 471.50 2954.50
1965 615.50 436.50 354.00 261.00 94.50 38.50 0.50 0.00 17.50 29.50 274.50 720.50 2842.50
1966 570.00 478.50 331.50 101.00 42.00 20.00 0.00 1.50 3.00 59.50 290.00 599.00 2496.00
1967 583.00 475.50 402.00 467.00 107.50 50.00 0.00 0.00 0.00 30.50 208.00 618.00 2941.50
1968 639.50 308.00 289.00 186.50 97.00 2.50 0.00 3.00 8.50 73.00 369.00 625.50 2601.50
1969 651.50 520.50 386.00 236.00 54.00 9.50 0.00 0.00 0.00 119.00 240.50 475.50 2692.50
1970 468.00 354.50 298.50 285.00 74.50 21.50 0.00 0.00 9.00 141.50 291.00 624.50 2568.00
1971 637.00 519.00 430.50 298.50 179.50 39.00 0.00 0.00 28.50 205.00 353.50 669.00 3359.50
1972 729.00 401.50 221.00 226.50 87.00 14.50 0.00 0.00 5.00 118.00 452.50 778.00 3033.00
1973 626.50 367.50 464.00 166.00 43.00 10.00 0.00 0.00 4.50 102.50 402.50 550.50 2737.00
1974 567.00 448.00 356.50 269.50 85.50 1.00 10.00 0.00 0.00 a 51.00 351.50 599.00 2739.00
1975 681.00 443.00 447.50 385.50 100.00 15.00 0.52 a 4.13 a 0.00 185.00 439.50 559.50 3260.65
1976 541.50 408.50 385.50 303.00 26.00 31.00 0.00 8.50 2.50 34.00 238.00 455.00 2433.50
1977 671.00 337.50 426.00 74.50 153.00 j 7.00 0.00 0.00 12.50 47.00 289.00 434.50 2299.00
1978 434.00 371.50 201.50 255.00 62.00 0.00 0.00 0.00 13.50 24.50 372.00 671.50 2405.50
1979 585.50 460.00 319.00 215.00 66.50 4.50 0.00 0.00 0.00 93.00 324.00 453.50 2521.00
1980 502.00 328.00 368.50 188.50 105.50 31.50 0.00 0.00 3.50 76.50 229.00 503.50 2336.50
1981 518.00 343.50 362.00 188.50 49.00 0.00 0.00 0.00 3.50 124.00 233.50 466.00 2288.00
1982 663.00 379.00 382.50 252.50 42.50 24.50 1.00 0.00 16.00 74.00 437.00 560.00 2832.00
1983 661.00 347.50 344.50 277.50 109.50 4.00 1.50 0.00 0.00 z 7.50 350.50 456.50 2560.00
1984 538.50 420.00 237.50 232.00 43.50 14.00 0.00 0.00 a 0.50 169.50 378.00 578.50 2612.00
1985 694.00 385.26 a 440.00 110.50 61.50 14.50 0.00 3.50 22.50 98.50 428.00 713.50 2971.76
1986 427.50 303.00 196.50 170.00 0.00 z 0.50 0.00 0.00 z 48.50 42.00 207.50 547.50 1943.00
1987 589.00 354.50 385.00 85.00 44.00 0.00 3.00 0.00 z 0.00 6.50 295.50 0.00 z 1762.50
1988 524.00 277.50 228.00 146.50 119.00 32.00 0.00 0.00 3.50 30.50 312.50 530.50 2204.00
1989 644.00 503.50 287.50 104.00 45.50 10.00 0.00 0.00 19.00 106.00 261.50 593.50 2574.50
1990 554.50 499.00 263.50 79.00 64.00 8.50 0.00 0.00 0.00 30.50 334.00 689.00 2522.00
1991 549.50 270.50 452.00 224.50 123.50 8.50 0.00 0.00 0.00 98.00 228.50 546.50 2501.50
1992 636.50 324.00 248.00 95.00 1.00 7.00 0.00 0.00 0.00 29.50 315.00 645.50 2301.50
1993 607.50 415.50 203.00 192.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1418.50
Period of Record Statistics
MEAN 594.21 394.45 338.72 206.09 79.94 13.74 0.57 0.70 7.64 77.83 321.16 569.20 2642.81
S.D. 77.92 75.05 81.17 89.78 37.05 13.83 1.74 1.81 10.46 49.30 74.04 98.17 310.77
SKEW -0.35 -0.01 -0.27 0.61 0.28 1.16 4.55 2.89 2.01 0.68 0.15 0.11 0.27
MAX 729.00 520.50 464.00 467.00 179.50 50.00 10.00 8.50 48.50 205.00 452.50 778.00 3359.50
MIN 427.50 254.50 196.50 66.50 1.00 0.00 0.00 0.00 0.00 6.50 207.50 350.00 2028.00
NO YRS 38 38 38 38 35 37 37 35 36 37 38 37 33