CLOVERDALE, CALIFORNIA

Monthly Total Heating Degree Days

(041838)

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
1950 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 u 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1951 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
1952 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
1953 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
1954 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
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 0.00 z 340.34 a 484.50 824.84
1956 554.50 500.50 356.50 241.50 133.00 30.50 0.00 4.00 9.50 119.00 216.50 455.50 2621.00
1957 646.50 376.00 357.50 225.00 166.50 10.50 7.00 7.50 8.00 133.00 327.00 569.50 2834.00
1958 526.00 342.00 466.50 219.50 62.00 15.50 4.50 0.00 7.00 50.00 248.00 314.50 2255.50
1959 469.50 424.00 221.00 94.50 117.00 3.50 0.00 11.50 22.00 42.00 217.00 443.00 2065.00
1960 584.00 414.50 329.50 255.00 142.00 8.50 4.50 0.00 17.00 91.00 378.00 515.00 2739.00
1961 561.00 343.00 408.50 195.00 172.50 16.00 0.00 0.00 24.00 117.50 336.50 555.00 2729.00
1962 553.50 451.00 450.00 141.00 132.00 21.00 3.00 1.50 26.00 126.00 261.72 a 492.26 b 2658.98
1963 457.50 g 234.64 c 422.00 261.00 k 132.00 f 31.67 c 3.00 6.00 5.00 157.50 405.00 663.50 1928.31
1964 599.50 399.50 411.50 295.00 200.00 53.50 2.50 0.00 51.50 75.50 425.50 488.00 3002.00
1965 547.00 404.00 348.00 301.00 119.50 69.00 2.50 5.50 52.50 54.50 341.00 650.50 2895.00
1966 570.00 498.00 433.50 138.00 92.00 39.50 14.50 8.00 21.50 80.00 343.50 560.50 2799.00
1967 526.00 381.00 496.50 545.00 154.00 64.00 1.00 0.00 0.00 35.00 209.50 569.50 2981.50
1968 622.00 325.00 320.50 185.00 151.00 16.00 0.00 13.50 9.00 113.50 363.00 638.50 2757.00
1969 663.50 553.50 401.00 281.00 83.50 29.50 0.00 0.00 16.00 141.00 280.50 427.00 2876.50
1970 486.50 350.50 327.00 293.00 97.50 24.00 1.00 0.50 18.00 190.00 303.50 613.50 2705.00
1971 541.00 417.50 434.00 329.50 0.00 z 38.50 0.00 1.00 39.50 219.00 319.00 658.00 2997.00
1972 627.00 428.50 278.00 285.00 127.50 42.00 1.50 7.00 35.50 166.50 404.50 703.50 3106.50
1973 613.00 394.00 475.50 169.50 64.00 23.00 0.00 3.00 26.00 103.50 402.50 530.50 2804.50
1974 571.50 473.00 404.50 297.50 133.50 12.50 14.50 0.00 8.00 104.00 377.00 568.00 2964.00
1975 567.00 480.50 453.50 411.00 115.50 20.50 15.00 8.00 22.50 206.50 424.50 512.00 3236.50
1976 527.50 460.50 454.50 351.50 57.50 49.50 2.50 27.00 34.50 92.00 252.50 497.50 2807.00
1977 622.50 326.00 456.00 197.00 275.00 31.00 1.00 1.50 34.50 112.00 332.00 451.50 2840.00
1978 458.00 382.50 251.50 311.50 89.00 5.50 0.00 1.50 28.50 78.00 377.00 628.50 2611.50
1979 600.00 488.50 361.50 243.50 95.00 5.50 2.00 0.00 6.50 107.00 408.50 474.00 2792.00
1980 487.50 351.11 a 350.50 220.50 122.00 54.00 1.00 8.50 11.00 92.47 b 156.50 i 456.45 b 2155.02
1981 504.00 332.00 356.50 194.50 82.67 a 0.00 0.00 b 0.00 20.00 163.50 262.00 436.77 c 2351.93
1982 625.00 368.50 424.00 289.00 86.00 42.50 1.50 0.00 20.00 109.00 396.00 534.50 2896.00
1983 517.00 367.00 407.00 328.00 108.50 0.00 z 0.00 z 0.00 15.00 26.50 359.00 479.50 2607.50
1984 447.00 415.00 237.50 271.00 102.00 15.00 2.50 1.50 0.00 215.50 412.50 582.00 2701.50
1985 610.00 339.00 458.50 145.50 90.50 13.50 9.00 6.00 44.50 150.50 437.00 601.00 2905.00
1986 432.00 294.50 224.50 199.50 109.50 2.50 1.00 0.00 90.50 75.00 222.00 500.50 2151.50
1987 557.50 375.00 363.00 86.50 54.00 1.00 6.00 0.00 z 1.00 57.00 328.50 545.00 2374.50
1988 522.50 293.50 215.50 192.00 142.00 65.00 0.00 0.50 8.00 85.50 326.00 486.50 2337.00
1989 536.00 482.50 352.00 147.50 81.50 0.00 z 0.00 0.00 35.00 142.00 267.00 505.00 2548.50
1990 519.50 459.50 301.00 81.50 120.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 319.00 661.50 2462.50
1991 491.50 256.00 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 747.50
1992 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 29.50 336.00 615.00 980.50
1993 568.50 457.50 175.50 152.50 44.00 17.50 0.00 0.00 0.00 0.00 j 371.50 598.50 2385.50
1994 506.00 462.00 225.00 114.00 48.00 0.00 0.00 0.00 4.00 67.50 561.50 659.00 2647.00
1995 507.00 306.50 373.00 225.00 64.00 12.00 0.00 0.00 0.00 37.50 173.00 486.00 2184.00
1996 500.50 373.00 255.75 a 164.50 38.50 0.00 0.00 0.00 a 3.50 128.50 313.50 470.00 2247.75
1997 494.50 332.50 225.50 115.00 9.00 0.00 0.00 0.00 4.50 111.00 317.50 581.00 2190.50
1998 0.00 z 446.50 334.00 0.00 z 180.00 8.50 0.00 0.00 15.00 90.50 390.00 574.50 2039.00
1999 522.72 b 458.00 447.50 210.50 103.85 a 18.00 n 0.00 d 0.00 c 0.00 z 18.50 i 282.41 a 462.00 2486.99
2000 483.50 401.50 280.55 a 126.72 a 81.00 8.50 0.00 0.00 z 10.86 a 120.38 a 0.00 z 487.50 2000.52
2001 581.00 438.67 a 224.00 260.50 3.50 3.75 b 0.00 0.00 c 2.22 c 63.66 c 291.50 520.50 2389.30
2002 549.50 326.50 374.00 203.50 107.00 0.00 0.00 2.00 13.00 85.00 266.00 475.50 2402.00
2003 344.50 356.70 e 262.35 d 358.45 a 92.50 9.50 f 0.00 i 0.00 k 1.80 e 28.00 427.50 509.90 b 2381.69
2004 494.50 426.50 138.00 155.00 30.00 4.00 0.53 b 0.00 3.50 141.00 332.50 453.38 c 2178.91
2005 541.50 320.50 261.00 265.50 89.50 31.00 0.00 2.00 11.50 74.00 274.50 457.50 2328.50
2006 467.00 364.50 527.00 269.50 45.00 g 10.80 e 0.00 0.00 e 0.50 l 90.00 f 325.50 525.00 2489.30
2007 446.00 f 408.43 e 169.97 b 140.50 45.50 12.50 0.00 e 0.00 g 31.20 e 133.00 f 206.50 h 565.00 1373.10
2008 596.50 395.50 313.00 215.50 50.00 1.50 0.00 a 1.00 18.89 c 54.25 c 169.00 g 610.00 2256.14
2009 406.50 424.50 329.00 216.60 e 50.24 b 10.20 e 0.00 f 0.00 7.80 e 91.81 e 230.00 h 473.00 f 1536.65
2010 316.00 l 0.00 z 338.50 298.80 e 167.63 d 2.50 0.00 a 5.96 e 0.00 e 99.31 d 349.00 363.50 f 1261.71
2011 438.50 470.17 d 397.12 b 228.33 c 120.50 56.79 b 0.00 0.00 d 0.00 e 58.42 e 292.50 g 411.50 f 1769.83
2012 454.27 e 339.88 d 406.58 e 232.20 e 36.17 d 29.40 e 0.00 a 0.00 a 7.00 88.00 271.55 a 528.00 2393.04
2013 533.00 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 533.00
Period of Record Statistics
MEAN 533.51 394.38 346.65 228.56 100.76 21.26 1.99 2.64 17.02 101.95 331.50 533.90 2632.01
S.D. 64.33 66.44 92.49 86.96 50.64 19.53 3.76 4.85 17.26 47.72 72.35 76.67 304.97
SKEW -0.33 -0.05 -0.28 0.87 0.70 0.90 2.45 2.96 1.81 0.60 0.30 0.05 -0.22
MAX 663.50 553.50 527.00 545.00 275.00 69.00 15.00 27.00 90.50 219.00 561.50 703.50 3236.50
MIN 344.50 234.64 138.00 81.50 3.50 0.00 0.00 0.00 0.00 26.50 173.00 314.50 2065.00
NO YRS 53 55 55 53 52 50 51 51 53 51 51 54 37