ANTIOCH PUMP PLT 3, CALIFORNIA

Monthly Total Heating Degree Days

(040232)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201301
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 356.00 312.50 89.00 22.50 4.00 0.50 12.00 80.00 377.50 479.00 1733.00
1956 527.50 525.50 357.50 219.00 78.00 14.50 1.50 2.00 5.00 144.50 367.00 611.50 2853.50
1957 679.00 383.50 327.50 180.50 107.50 2.00 0.50 8.00 5.50 120.00 390.50 616.50 2821.00
1958 622.00 331.00 454.50 208.00 63.00 11.00 0.50 0.00 3.50 75.00 322.50 496.50 2587.50
1959 542.00 475.00 260.50 111.00 88.00 6.00 0.00 10.00 19.50 51.50 370.50 549.50 2483.50
1960 590.00 409.00 276.00 198.00 86.00 1.00 0.50 0.00 9.00 110.00 352.00 627.50 2659.00
1961 738.00 357.00 358.50 203.00 123.50 10.00 5.50 0.00 15.00 108.50 396.50 615.50 2931.00
1962 731.00 496.50 429.00 140.50 110.50 14.00 0.50 1.00 4.50 129.00 282.50 602.00 2941.00
1963 762.00 248.00 396.00 340.00 116.50 6.00 1.00 3.62 a 0.00 88.50 414.00 771.00 3146.62
1964 640.50 433.50 362.00 228.50 169.00 33.00 2.00 0.00 34.50 51.50 439.50 471.50 2865.50
1965 639.50 438.50 361.50 240.00 80.00 46.50 4.00 0.00 38.00 40.50 317.50 736.50 2942.50
1966 638.00 494.00 357.00 99.50 54.50 24.50 0.50 1.50 7.00 102.00 313.50 583.50 2675.50
1967 612.00 496.50 413.50 466.50 115.50 51.00 0.00 0.00 0.00 56.50 262.00 653.50 3127.00
1968 716.50 350.00 307.50 139.00 97.50 7.50 0.00 7.00 0.50 136.00 383.00 658.50 2803.00
1969 654.00 509.50 364.50 227.50 57.00 14.50 0.00 0.00 8.50 161.00 352.50 508.50 2857.50
1970 491.50 371.50 260.50 257.50 54.00 12.50 0.00 3.50 12.00 205.00 333.50 651.50 2653.00
1971 655.00 496.50 412.00 295.00 153.00 43.50 0.00 0.00 32.50 258.00 428.50 717.00 3491.00
1972 807.00 470.50 256.50 236.50 123.00 25.00 4.50 2.50 54.00 207.00 482.22 c 221.00 s 2668.72
1973 0.00 z 440.50 427.50 146.50 72.00 25.00 0.00 0.00 8.00 104.00 352.00 545.50 2121.00
1974 585.50 490.00 378.00 252.00 86.00 7.00 5.50 0.00 0.50 54.50 377.50 634.00 2870.50
1975 685.00 434.54 b 435.03 a 377.07 a 125.00 26.00 9.50 1.50 1.00 140.50 390.56 c 474.00 g 2625.70
1976 595.50 424.00 348.50 251.38 a 18.50 26.00 3.00 6.00 2.00 66.00 293.50 608.50 2642.88
1977 704.00 363.50 391.00 110.50 184.40 b 6.50 9.50 0.00 a 18.00 76.00 284.00 472.00 2619.40
1978 488.54 d 417.31 b 237.84 b 232.00 44.00 8.28 a 4.65 a 0.00 e 11.00 60.00 416.38 a 724.00 2643.99
1979 632.40 a 462.00 333.00 218.57 b 63.55 a 17.00 1.50 0.00 1.50 72.50 396.50 576.37 d 2774.89
1980 538.76 b 398.46 d 347.20 a 200.00 114.18 a 26.00 5.00 0.00 13.50 121.00 309.00 593.13 a 2666.24
1981 564.50 362.50 380.02 b 181.00 45.98 a 0.50 0.00 0.00 1.50 147.50 268.45 a 488.25 c 2440.20
1982 726.00 391.50 414.50 269.00 49.50 40.00 1.00 0.00 17.00 84.50 493.45 a 572.00 3058.45
1983 675.50 398.50 335.50 287.50 94.50 11.25 b 8.00 0.00 1.50 31.50 349.00 467.50 2660.25
1984 597.50 439.50 211.50 195.56 c 26.00 9.00 0.00 0.00 0.00 132.50 395.50 656.68 a 2663.74
1985 766.00 391.00 438.00 100.00 49.50 q 0.00 z 1.00 y 0.00 19.50 110.00 405.00 725.00 2954.50
1986 435.50 299.00 223.50 174.00 65.00 5.00 0.00 0.00 35.00 44.00 208.50 596.00 2085.50
1987 612.00 362.50 317.00 67.50 49.00 0.00 1.00 1.50 1.00 25.50 314.00 557.00 2308.00
1988 576.50 336.00 234.50 148.50 92.00 24.50 0.00 0.50 5.00 43.00 j 292.00 574.50 2284.00
1989 648.50 496.00 283.50 116.00 44.50 3.50 0.00 0.00 15.00 80.50 280.50 652.50 2620.50
1990 547.00 482.50 290.00 83.50 52.00 8.00 0.00 0.00 0.00 15.50 303.00 693.50 2475.00
1991 559.50 288.50 416.00 223.00 94.00 0.00 z 0.00 0.00 0.00 68.00 266.50 599.50 2515.00
1992 703.50 329.50 256.50 95.00 2.00 6.00 0.00 0.00 1.00 21.50 277.00 627.50 2319.50
1993 577.50 403.00 212.50 165.50 41.00 10.50 0.00 0.00 t 7.00 28.50 336.00 617.50 2399.00
1994 578.00 475.00 248.50 125.50 68.00 5.00 0.00 0.00 0.00 70.50 468.00 390.50 l 2038.50
1995 115.00 v 344.00 346.00 195.50 113.50 24.00 0.00 0.00 0.00 26.00 157.00 407.00 1613.00
1996 500.50 348.00 278.00 144.50 41.00 7.00 0.00 0.00 1.50 100.00 285.50 461.00 2167.00
1997 523.00 344.50 220.50 93.00 11.50 2.00 0.00 0.00 0.00 71.50 250.00 599.00 2115.00
1998 518.50 421.00 293.50 251.50 184.50 16.50 k 0.00 0.00 15.50 75.50 346.50 632.00 2738.50
1999 609.00 421.50 398.00 198.50 69.50 30.00 1.00 0.00 0.00 33.50 0.00 z 507.50 2268.50
2000 448.00 366.00 0.00 z 117.00 76.50 6.50 0.00 z 0.00 8.00 114.00 451.50 0.00 z 1587.50
2001 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 g 30.00 f 0.00 z 530.50 530.50
2002 567.96 c 0.00 z 91.50 r 22.50 r 65.50 1.50 0.00 2.00 9.00 100.23 a 298.97 a 504.50 1549.66
2003 448.00 419.50 247.50 294.00 0.00 z 0.00 z 0.00 0.00 0.00 16.00 388.00 515.24 b 2328.24
2004 590.50 389.69 e 0.00 z 0.00 z 25.00 0.00 0.00 0.00 15.50 144.50 407.50 594.50 2167.19
2005 649.00 363.00 260.00 191.00 48.50 16.50 0.00 0.00 o 4.00 73.50 255.50 472.00 2333.00
2006 485.50 379.50 443.00 0.00 z 31.50 1.00 0.00 0.00 4.00 101.00 297.00 559.00 2301.50
2007 609.00 387.50 169.00 127.00 39.00 4.00 0.00 0.00 21.50 91.21 e 250.00 554.50 2252.71
2008 606.00 413.50 281.00 193.00 38.50 0.00 0.50 0.00 1.50 40.50 220.50 630.50 2425.50
2009 0.00 z 393.83 e 265.50 j 203.00 27.50 1.20 e 0.00 0.00 1.00 g 34.00 v 0.00 z 638.00 1263.53
2010 571.71 e 106.00 t 0.00 z 274.50 113.00 2.00 g 0.00 0.00 0.50 94.50 328.50 411.50 1794.21
2011 580.39 d 366.59 a 251.44 d 71.50 f 30.00 t 31.80 e 0.00 c 0.00 0.00 6.00 h 212.00 f 474.41 c 1704.64
2012 385.43 a 217.50 h 298.50 143.50 0.00 z 5.19 d 1.66 c 0.00 z 1.00 0.00 z 241.03 a 498.00 1574.32
2013 568.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 568.00
Period of Record Statistics
MEAN 601.91 406.22 326.09 199.02 77.01 14.24 1.40 0.95 8.96 89.83 337.76 579.99 2675.64
S.D. 89.29 61.81 73.67 79.04 42.00 13.09 2.44 2.17 11.53 50.49 72.47 84.25 306.99
SKEW -0.01 -0.07 -0.06 0.81 0.67 1.05 1.99 2.73 1.85 0.96 0.01 0.04 0.16
MAX 807.00 525.50 454.50 466.50 184.50 51.00 9.50 10.00 54.00 258.00 493.45 771.00 3491.00
MIN 385.43 248.00 169.00 67.50 2.00 0.00 0.00 0.00 0.00 15.50 157.00 407.00 2085.50
NO YRS 54 53 52 53 53 52 55 54 56 53 54 54 35