QUINCY, CALIFORNIA

Monthly Total Heating Degree Days

(047195)

Base Temperature = 65 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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 82.00 134.50 222.93 a 431.79 c 758.08 d 877.50 f 1629.29
1949 1435.19 d 985.19 a 779.59 d 310.50 i 146.50 j 136.61 b 44.95 a 165.50 200.50 537.73 e 486.50 j 806.50 h 4285.25
1950 890.00 h 771.50 733.87 e 327.50 h 248.50 g 206.50 11.50 58.50 171.00 390.48 e 387.00 i 458.50 k 2343.35
1951 926.38 a 741.00 721.00 405.00 345.98 c 98.57 b 26.98 d 75.50 142.22 c 469.17 e 572.50 f 1008.57 b 4960.38
1952 1118.67 b 888.50 910.22 b 359.50 f 273.63 e 190.34 a 2.58 a 68.20 a 107.50 327.00 843.00 972.62 c 5702.28
1953 804.50 693.50 742.34 c 593.57 b 514.00 144.50 g 23.50 117.28 a 68.00 h 475.91 d 401.50 i 862.50 4827.10
1954 854.50 644.00 754.00 385.50 204.50 200.50 46.50 181.50 290.00 483.50 660.50 1009.00 5714.00
1955 1114.50 890.50 755.50 702.00 336.50 186.00 140.50 86.00 269.00 445.00 762.00 830.00 6517.50
1956 874.50 943.06 c 688.50 528.50 335.00 150.00 52.50 74.50 178.50 502.50 762.00 973.40 a 6062.96
1957 1116.55 c 728.50 645.50 501.50 326.00 83.50 42.00 132.27 a 122.00 470.50 780.50 0.00 z 4948.82
1958 874.50 642.50 809.50 546.00 226.00 144.50 21.50 0.50 144.00 365.00 694.00 798.50 5266.50
1959 805.00 769.00 612.00 362.50 396.00 99.00 19.50 78.50 190.50 369.00 703.50 989.33 b 5393.83
1960 1013.50 767.00 600.00 496.00 393.50 47.50 13.00 74.50 121.00 410.50 713.79 a 876.00 5526.29
1961 857.00 638.00 687.50 477.50 374.00 80.69 a 39.00 41.00 235.50 439.50 746.50 928.50 5544.69
1962 1019.50 815.50 786.50 385.50 391.00 117.50 32.00 46.50 119.00 357.00 578.50 809.00 5457.50
1963 977.50 489.50 731.00 664.00 225.50 157.50 95.07 a 77.50 84.50 307.00 687.50 858.00 5354.57
1964 939.00 784.00 726.50 524.00 403.50 187.00 47.00 37.00 222.00 305.00 786.50 798.50 5760.00
1965 935.50 687.00 647.50 473.00 341.50 122.50 45.00 57.00 250.50 357.50 625.00 1011.50 5553.50
1966 968.50 791.50 649.50 388.50 175.50 155.00 91.50 31.50 122.00 371.50 622.00 888.50 5255.50
1967 905.00 659.00 747.00 755.50 279.00 164.00 6.50 0.50 73.00 415.50 608.50 1074.00 5687.50
1968 993.50 724.50 639.50 503.50 316.50 94.00 8.00 87.00 138.50 396.50 655.00 978.50 5535.00
1969 991.00 851.50 698.50 487.00 167.00 82.50 12.00 31.50 82.24 a 499.00 687.50 837.50 5427.24
1970 808.00 627.00 616.00 623.00 266.50 109.00 17.00 36.50 182.00 470.50 588.00 1001.50 5345.00
1971 983.50 747.00 716.50 532.50 337.00 166.50 19.50 26.00 246.50 547.50 765.50 1130.50 6218.50
1972 1198.00 804.50 569.50 593.50 313.50 92.50 44.00 63.50 281.50 460.23 e 567.00 h 707.50 m 4420.73
1973 663.50 k 458.50 j 547.50 i 519.00 0.00 z 0.00 z 19.50 62.50 184.50 498.77 c 551.50 h 574.50 k 1284.27
1974 706.50 i 521.50 i 471.00 j 595.38 d 323.50 0.00 z 50.50 44.00 97.00 414.00 471.50 k 646.00 k 1524.38
1975 690.00 k 481.00 j 515.00 j 505.50 i 321.62 c 158.50 0.00 z 75.00 74.00 352.50 h 454.50 m 628.00 j 629.12
1976 604.50 k 526.00 j 549.00 h 609.81 d 258.50 203.28 a 36.00 168.50 172.50 0.00 z 379.50 k 721.50 h 1448.58
1977 574.50 l 390.00 l 607.50 i 357.50 f 494.89 c 63.21 b 32.00 23.00 k 188.00 383.88 a 0.00 z 499.50 l 1161.99
1978 0.00 z 0.00 z 0.00 z 0.00 z 275.50 k 131.00 f 44.95 a 118.26 d 285.52 a 320.33 a 445.00 l 0.00 z 769.06
1979 660.50 i 472.50 j 412.00 j 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 0.00
1980 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 0.00 z 0.00 z 0.00 z 0.00
1981 0.00 z 0.00 z 0.00 z 432.00 202.50 g 73.39 b 32.11 c 36.50 101.00 430.50 f 351.50 l 483.50 l 675.00
1982 642.50 l 686.50 693.50 647.07 a 234.50 135.00 40.00 52.50 198.50 290.00 m 403.50 n 505.50 n 2687.57
1983 562.50 j 443.00 i 678.12 c 625.71 b 224.00 k 100.50 130.00 48.00 112.00 193.00 l 469.00 j 840.44 d 2534.78
1984 563.00 m 446.50 l 346.50 l 392.50 i 274.50 170.50 12.00 72.00 144.50 537.50 462.00 l 388.00 s 1211.00
1985 663.50 k 465.50 k 535.00 j 290.50 i 314.00 68.50 12.00 69.50 256.50 489.00 449.50 o 344.50 u 1209.50
1986 311.00 r 214.00 t 274.50 p 253.00 n 310.50 74.00 56.00 32.00 305.00 425.50 204.00 t 55.00 z 1203.00
1987 26.50 z 0.00 z 80.00 z 237.00 i 154.00 g 77.00 96.62 a 12.50 83.79 a 237.00 50.00 z 0.00 z 506.91
1988 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 179.50 254.00 622.50 0.00 z 1056.00
1989 0.00 z 499.50 o 0.00 z 393.00 339.50 70.00 52.00 97.00 216.00 249.00 p 0.00 z 0.00 z 1167.50
1990 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 31.00 42.00 252.00 588.00 e 458.00 p 913.00
1991 810.00 474.50 752.50 498.00 344.50 143.50 2.07 a 0.00 z 10.50 220.50 539.50 846.30 a 4641.87
1992 793.00 595.00 511.00 0.00 z 46.00 80.50 0.00 z 7.50 28.00 i 233.00 0.00 z 923.28 a 3189.28
1993 83.00 z 759.50 503.50 455.50 211.00 127.50 15.50 26.00 0.00 z 269.50 691.00 0.00 z 3059.00
1994 608.00 g 417.00 k 486.00 396.50 185.50 78.00 0.00 5.00 59.50 343.00 819.31 a 871.00 3243.81
1995 823.50 518.50 662.50 526.00 284.00 150.50 19.50 30.00 51.00 232.50 445.00 716.50 4459.50
1996 777.00 614.50 423.00 i 152.50 r 256.78 a 44.00 0.00 z 13.50 t 169.50 415.00 615.00 b 817.50 3709.28
1997 852.00 664.00 513.05 a 471.50 113.00 i 110.00 31.50 58.50 132.50 487.50 627.00 921.50 4869.05
1998 790.50 736.00 643.00 379.00 k 184.50 u 0.00 z 10.50 n 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2169.50
1999 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 48.50 74.50 375.50 643.00 973.00 2114.50
2000 869.00 700.00 626.00 422.50 300.00 85.00 52.00 25.00 177.50 423.00 809.00 905.00 5394.00
2001 978.50 842.50 569.50 581.50 118.00 89.50 38.50 18.50 65.50 281.50 653.50 898.00 5135.00
2002 965.50 684.50 676.00 420.50 344.50 55.00 0.00 49.50 119.00 409.00 709.00 871.00 5303.50
2003 743.00 714.00 571.50 619.00 260.50 38.50 8.00 27.50 78.00 315.50 771.50 873.00 5020.00
2004 942.00 749.50 483.50 432.00 280.00 56.00 3.50 16.50 135.00 430.50 758.50 942.50 5229.50
2005 972.50 661.00 593.50 533.50 310.50 203.50 2.50 5.00 205.00 417.50 626.50 789.00 5320.00
2006 833.50 734.50 847.00 521.38 a 228.50 53.50 3.00 l 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3218.38
Period of Record Statistics
MEAN 935.11 723.53 669.44 515.70 295.07 116.26 36.13 59.21 156.04 393.27 684.18 906.59 5478.40
S.D. 138.47 111.11 99.05 95.66 87.75 49.02 31.90 43.15 72.38 88.79 87.82 89.67 406.05
SKEW 1.45 0.00 -0.01 0.41 -0.17 0.32 1.47 1.07 0.22 -0.31 -0.35 0.33 0.35
MAX 1435.19 985.19 910.22 755.50 514.00 206.50 140.50 181.50 305.00 547.50 843.00 1130.50 6517.50
MIN 743.00 474.50 483.50 362.50 46.00 38.50 0.00 0.50 10.50 220.50 445.00 716.50 4459.50
NO YRS 36 39 40 40 44 48 49 51 52 49 35 34 24