PORTERVILLE, CALIFORNIA

Monthly Total Heating Degree Days

(047077)

Base Temperature = 65 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200406
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 0.00 a 0.00 36.00 92.00 423.50 648.00 1199.50
1949 796.00 519.50 336.50 78.00 41.00 1.50 0.00 0.00 3.00 135.50 202.00 616.00 2729.00
1950 676.00 326.00 366.00 99.00 63.50 9.00 0.00 0.00 6.50 40.50 187.00 412.00 2185.50
1951 566.50 396.00 305.00 119.50 67.50 1.00 0.00 0.00 0.00 92.50 315.50 594.00 2457.50
1952 592.50 421.00 447.50 128.50 18.00 12.00 0.00 0.00 15.50 21.00 387.00 546.50 2589.50
1953 435.50 418.00 324.00 206.50 135.00 19.50 0.00 0.00 0.50 118.00 304.50 600.00 2561.50
1954 558.50 405.00 383.50 89.00 19.50 g 19.00 0.00 0.00 2.00 70.50 332.00 620.50 2480.00
1955 693.50 469.00 319.50 252.00 91.00 10.00 0.00 0.00 2.50 38.50 371.50 461.00 2708.50
1956 464.50 528.50 283.50 178.00 37.50 2.50 0.00 0.00 0.00 113.50 310.50 589.00 2507.50
1957 669.50 288.50 281.50 135.52 a 61.50 0.00 0.00 0.00 0.00 61.00 349.50 569.00 2416.02
1958 553.50 274.00 387.00 164.50 16.00 0.00 0.00 0.00 8.00 10.00 286.00 435.00 2134.00
1959 459.00 406.52 a 162.50 36.00 61.50 0.00 d 0.00 0.50 4.50 44.00 278.50 520.50 1973.52
1960 548.00 406.50 199.50 142.00 51.00 0.00 0.00 e 0.00 0.00 86.50 371.00 643.00 2447.50
1961 672.00 323.50 316.00 104.00 54.50 1.00 0.00 0.00 0.50 119.00 363.50 626.00 2580.00
1962 727.50 434.00 368.00 58.50 82.00 6.00 0.00 0.00 0.00 85.50 269.00 517.00 2547.50
1963 696.00 222.00 331.50 273.00 22.50 2.00 0.00 0.00 0.50 63.00 316.00 732.50 2659.00
1964 615.00 448.00 368.50 178.50 96.00 10.50 0.00 0.00 3.50 34.00 444.00 465.50 2663.50
1965 555.00 403.50 266.50 203.00 63.00 8.00 0.00 0.00 4.50 26.50 242.50 693.00 2465.50
1966 602.50 463.00 242.00 44.50 8.00 3.00 0.00 0.00 5.00 63.00 226.50 581.50 2239.00
1967 570.50 457.00 295.00 398.50 76.00 19.00 0.00 0.00 3.00 26.50 169.50 669.50 2684.50
1968 597.50 250.50 221.50 120.00 45.50 3.00 0.00 1.00 16.50 54.00 353.50 602.50 2265.50
1969 569.50 463.50 333.00 140.50 23.50 1.50 0.00 0.00 0.00 155.50 277.50 484.00 2448.50
1970 451.50 335.00 270.00 223.00 38.00 0.00 0.00 0.00 3.00 80.00 256.00 561.50 2218.00
1971 619.00 471.50 319.50 199.00 85.50 19.00 0.00 0.00 19.50 147.85 e 397.00 661.50 2939.35
1972 776.50 353.50 137.50 123.00 27.50 2.50 0.00 0.00 2.00 104.00 437.50 717.00 2681.00
1973 568.00 311.50 414.50 116.00 9.50 1.00 0.00 0.00 0.50 82.50 335.50 544.50 2383.50
1974 520.50 438.00 268.50 168.50 38.50 0.00 0.00 0.00 0.00 53.50 335.00 616.00 2438.50
1975 650.00 379.00 333.00 266.00 42.00 1.00 0.00 0.00 0.00 102.00 366.00 569.50 2708.50
1976 548.00 362.00 330.00 216.50 4.00 2.50 0.00 0.00 5.00 42.50 270.50 546.50 2327.50
1977 673.50 332.00 403.00 56.00 127.00 1.00 0.00 0.00 3.00 44.50 296.00 389.50 2325.50
1978 421.00 359.00 161.00 176.00 36.50 0.00 0.00 0.00 7.24 a 23.50 370.50 696.50 2251.24
1979 546.50 403.00 256.50 138.10 a 19.50 0.50 0.00 0.00 0.00 45.00 310.00 435.00 2154.10
1980 427.50 280.00 299.00 110.00 49.50 0.50 0.00 0.00 0.00 65.00 264.50 508.50 2004.50
1981 461.50 323.50 263.50 114.00 16.50 0.00 0.00 0.00 0.00 91.00 227.00 469.50 1966.50
1982 617.00 321.00 321.00 159.50 17.00 3.00 0.50 0.00 12.50 56.50 410.50 549.50 2468.00
1983 602.00 324.00 245.50 184.50 67.00 0.00 0.00 0.00 4.00 9.50 273.50 426.00 2136.00
1984 508.00 363.00 181.50 177.50 18.00 0.50 0.00 0.00 0.00 122.50 306.50 568.00 2245.50
1985 635.00 372.00 319.50 54.50 6.50 1.50 0.00 0.00 4.00 59.50 364.50 645.00 2462.00
1986 360.00 251.50 146.00 98.50 25.50 0.00 0.00 0.00 25.50 33.00 240.50 539.50 1720.00
1987 600.50 342.00 268.00 42.00 20.50 0.00 0.00 0.00 0.00 5.50 329.50 559.00 2167.00
1988 543.50 301.50 200.00 92.00 74.50 12.50 0.00 0.00 0.00 15.50 291.00 575.50 2106.00
1989 631.00 424.50 175.50 45.00 20.00 0.00 0.00 0.00 1.00 63.50 276.50 640.00 2277.00
1990 538.00 438.50 186.50 33.00 18.00 4.00 0.00 0.00 0.00 11.50 309.00 684.50 2223.00
1991 540.00 220.00 388.50 134.50 56.50 0.00 0.00 0.00 0.00 74.50 273.50 545.50 2233.00
1992 695.50 257.00 197.50 39.00 0.00 3.50 0.00 0.00 0.00 14.00 312.50 607.00 2126.00
1993 550.00 338.00 178.00 129.50 13.00 10.50 0.00 0.00 4.00 17.00 318.50 568.00 2126.50
1994 540.50 413.00 156.50 104.50 41.50 1.00 0.00 0.00 0.00 49.00 437.00 560.00 2303.00
1995 366.00 259.00 219.50 130.50 56.00 7.50 0.00 0.00 0.00 15.50 118.50 368.00 1540.50
1996 461.50 247.00 185.50 86.00 0.50 1.00 0.00 0.00 0.00 109.00 258.50 435.00 1784.00
1997 408.00 314.00 124.50 92.00 2.50 0.00 0.00 0.00 0.00 66.50 211.50 567.50 1786.50
1998 403.00 333.50 240.00 198.00 81.50 5.50 0.00 0.00 0.50 67.50 323.50 597.00 2250.00
1999 576.50 351.00 284.50 210.50 39.50 11.00 0.00 0.00 0.00 10.50 201.50 494.50 2179.50
2000 407.50 273.50 219.00 62.59 a 21.50 0.00 0.00 0.00 0.00 75.00 406.00 451.00 1916.09
2001 481.00 387.00 159.50 178.50 0.00 0.00 0.00 0.00 0.00 12.00 206.00 493.00 1917.00
2002 565.50 308.50 285.00 88.50 33.50 0.00 0.00 0.00 0.00 60.50 241.00 440.00 2022.50
2003 410.00 345.00 192.00 180.50 48.00 0.00 0.00 0.00 0.00 15.50 0.00 z 438.50 1629.50
2004 554.50 375.00 116.50 85.50 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1131.50
2005 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
2006 0.00 z 0.00 z 0.00 z 225.54 b 20.50 0.00 a 0.00 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 246.04
Period of Record Statistics
MEAN 558.51 361.27 267.57 138.37 40.89 3.82 0.01 0.03 3.64 60.63 304.65 555.24 2295.29
S.D. 100.87 74.34 82.44 70.96 31.27 5.56 0.07 0.15 6.90 38.58 72.25 87.64 290.05
SKEW 0.06 0.10 0.05 0.92 0.91 1.63 7.28 5.77 2.88 0.51 -0.11 -0.12 -0.25
MAX 796.00 528.50 447.50 398.50 135.00 19.50 0.50 1.00 36.00 155.50 444.00 732.50 2939.35
MIN 360.00 220.00 116.50 33.00 0.00 0.00 0.00 0.00 0.00 5.50 118.50 368.00 1540.50
NO YRS 56 56 56 57 56 57 56 56 56 56 55 56 53