TRONA, CALIFORNIA

Monthly Total Cooling Degree Days

(049035)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1920 0.00 n 0.00 1.50 41.50 260.00 435.50 697.50 670.50 336.50 49.50 0.00 0.00 2492.50
1921 0.00 1.00 6.00 59.50 133.00 501.00 747.50 650.50 366.00 170.50 0.00 0.00 2635.00
1922 0.00 0.00 0.00 26.50 213.00 511.00 732.00 626.50 486.00 63.50 0.00 0.00 2658.50
1923 0.00 0.00 4.50 7.00 259.50 293.00 682.00 587.00 371.00 54.00 0.00 0.00 2258.00
1924 0.00 0.00 0.00 43.00 343.50 534.00 665.50 628.00 384.00 31.50 0.00 0.00 2629.50
1925 0.00 0.00 10.00 96.50 264.00 455.00 755.00 577.50 269.00 29.00 0.00 0.00 2456.00
1926 0.00 0.00 8.50 128.50 300.50 638.50 722.00 653.50 347.00 93.50 0.00 0.00 2892.00
1927 0.00 0.00 0.00 84.00 239.00 501.50 747.00 631.50 348.50 93.50 0.00 0.00 2645.00
1928 0.00 0.00 15.00 74.50 340.50 524.50 716.50 647.00 420.00 83.50 0.00 0.00 2821.50
1929 0.00 0.00 1.00 31.50 275.00 426.50 732.50 745.50 344.50 169.00 0.00 0.00 2725.50
1930 0.00 0.00 15.00 88.00 128.00 522.00 697.00 663.50 296.50 43.50 0.00 0.00 2453.50
1931 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
1932 0.00 0.00 1.50 53.50 219.00 465.50 715.50 660.50 487.50 124.50 3.50 0.00 2731.00
1933 0.00 0.00 0.00 15.00 130.00 442.00 833.50 707.50 414.50 241.50 0.00 0.00 2784.00
1934 0.00 0.00 57.50 208.50 368.00 379.00 768.00 737.50 454.00 130.00 0.00 0.00 3102.50
1935 0.00 0.00 3.00 44.50 225.00 611.50 662.50 710.50 514.00 123.00 0.00 0.00 2894.00
1936 0.00 0.00 8.00 156.00 309.50 544.50 781.50 734.50 397.50 106.50 2.50 0.00 3040.50
1937 0.00 0.00 0.00 28.00 342.50 516.00 788.50 745.00 494.00 103.50 0.00 0.00 3017.50
1938 0.00 0.00 0.50 106.50 273.00 525.00 728.50 680.50 503.50 69.00 0.00 0.00 2886.50
1939 0.00 0.00 9.00 154.50 319.00 498.50 756.50 740.50 388.50 61.50 0.00 0.00 2928.00
1940 0.00 0.00 21.00 103.50 385.50 645.00 686.00 695.50 345.00 136.00 0.00 0.00 3017.50
1941 0.00 0.00 0.00 17.00 297.00 414.00 708.00 570.00 284.50 46.50 12.50 0.00 2349.50
1942 0.00 0.00 3.00 28.50 216.50 529.50 816.00 737.00 398.50 163.50 1.50 0.00 2894.00
1943 0.00 0.00 15.00 151.50 323.00 381.00 717.00 627.00 532.00 192.50 0.00 0.00 2939.00
1944 0.00 0.00 0.00 13.50 248.50 335.00 636.00 655.50 461.50 0.00 z 0.00 z 0.00 2350.00
1945 0.00 0.00 1.00 138.00 278.50 486.50 840.50 675.00 505.00 173.00 20.00 0.00 3117.50
1946 0.00 0.00 0.00 160.00 286.50 540.00 747.50 728.50 448.50 46.00 0.00 0.00 2957.00
1947 0.00 0.00 3.50 99.00 398.50 497.00 693.50 606.50 553.50 157.00 0.00 0.00 3008.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 706.00 631.00 484.50 171.00 6.60 e 0.00 1999.10
1949 0.00 0.00 1.50 167.00 248.00 562.00 738.50 631.37 a 535.00 152.00 15.00 a 0.00 a 3050.37
1950 0.00 0.00 16.50 192.50 309.00 483.62 a 788.50 694.50 438.00 246.00 40.50 0.00 a 3209.12
1951 0.00 0.00 8.00 82.50 303.00 527.00 799.50 672.50 523.00 120.50 0.50 0.00 3036.50
1952 0.00 0.00 0.00 h 42.00 348.00 357.50 707.83 a 721.27 a 432.93 a 126.50 g 0.00 b 0.00 a 2609.53
1953 0.00 b 0.00 13.50 86.00 102.00 398.50 839.50 641.50 506.00 111.00 5.50 m 0.00 l 2698.00
1954 0.00 c 0.00 8.00 188.89 c 406.50 466.50 799.50 575.00 451.00 168.00 0.00 0.00 3063.39
1955 0.00 c 0.00 c 14.00 28.39 b 230.50 478.50 671.50 792.00 468.50 163.50 6.50 0.00 2853.39
1956 0.00 0.00 20.00 87.50 303.00 582.50 719.50 643.00 571.50 128.50 0.00 c 0.00 3055.50
1957 0.00 0.00 21.00 60.00 164.50 616.50 716.50 661.85 a 439.14 a 49.00 0.00 0.00 2728.49
1958 0.00 0.00 0.00 85.00 351.50 470.00 696.00 816.00 465.50 253.50 7.50 0.00 3145.00
1959 0.00 c 0.00 f 6.50 140.00 219.00 611.90 a 891.50 681.00 397.76 a 196.00 0.00 0.00 3143.66
1960 0.00 0.00 27.50 122.50 261.50 662.00 803.00 695.00 527.00 124.50 5.00 0.00 3228.00
1961 0.00 0.00 7.50 117.00 198.50 617.00 808.50 674.50 346.00 152.50 0.00 0.00 2921.50
1962 0.00 0.00 3.00 158.00 170.50 486.72 a 654.50 671.00 444.00 111.50 1.00 0.00 2700.22
1963 0.00 3.63 a 1.00 24.50 285.72 a 384.50 654.00 626.50 463.00 180.50 3.00 0.00 2626.35
1964 0.00 a 0.00 2.50 53.50 213.50 436.50 724.00 690.00 396.50 255.00 0.00 a 7.00 2778.50
1965 0.00 0.00 a 2.00 107.00 223.50 359.50 645.50 683.00 270.00 185.00 5.00 0.00 2480.50
1966 0.00 0.00 10.50 118.50 312.00 501.50 637.05 a 735.50 419.48 a 116.52 b 8.79 a 0.00 2859.84
1967 0.00 0.00 2.50 0.00 254.50 330.00 790.50 792.50 445.00 140.00 7.00 0.00 2762.00
1968 0.00 0.00 4.00 23.00 223.00 549.00 166.50 w 520.00 416.00 84.00 0.00 0.00 1819.00
1969 0.00 0.00 19.00 63.00 369.50 429.00 747.00 805.00 516.00 29.50 0.00 0.00 2978.00
1970 0.00 0.00 1.07 b 22.76 a 288.00 537.50 828.22 a 794.50 345.50 116.00 0.00 0.00 2933.54
1971 0.00 0.00 10.50 17.50 67.00 479.00 766.00 775.50 384.00 118.00 0.00 0.00 2617.50
1972 0.00 0.00 19.24 b 45.00 270.50 493.50 765.50 643.50 379.00 23.00 0.00 0.00 2639.24
1973 0.00 0.00 a 0.00 59.00 381.50 597.00 742.50 665.00 401.00 95.00 5.50 0.00 2946.50
1974 0.00 0.00 9.50 22.50 322.50 575.00 741.50 652.50 576.00 159.50 0.00 0.00 z 3059.00
1975 0.00 0.00 0.00 1.50 279.50 510.50 743.00 628.00 486.50 117.50 0.50 0.00 2767.00
1976 0.00 0.00 3.00 57.00 354.00 473.50 718.50 524.50 389.50 143.50 0.50 0.00 2664.00
1977 0.00 0.50 0.00 93.50 91.00 590.50 709.00 708.50 426.50 198.50 2.50 0.00 2820.50
1978 0.00 0.00 8.00 26.50 238.00 559.50 715.00 709.50 371.00 264.00 0.00 0.00 2891.50
1979 0.00 0.00 2.00 0.00 z 0.00 z 559.50 740.90 a 625.00 592.00 214.00 0.00 0.00 k 2733.40
1980 1.50 0.00 0.00 x 89.50 122.00 l 318.00 m 803.50 672.00 472.00 210.00 13.50 0.00 2262.00
1981 0.00 0.00 1.00 i 84.00 238.00 727.00 790.50 822.00 559.50 64.50 0.00 z 0.00 z 3285.50
1982 0.00 10.50 4.50 89.50 338.50 489.00 746.00 738.00 414.50 142.00 0.00 0.00 2972.50
1983 0.00 0.00 0.50 0.50 345.00 552.00 697.00 689.50 548.50 144.00 8.00 0.00 2985.00
1984 0.00 0.00 7.50 67.00 482.50 566.50 848.00 773.00 588.50 103.00 16.50 0.00 3452.50
1985 0.00 0.00 1.00 178.00 331.00 694.50 848.00 672.00 259.50 119.00 6.00 0.00 3109.00
1986 0.00 21.00 64.00 86.50 372.50 636.00 659.50 797.00 324.50 61.50 19.00 0.00 3041.50
1987 0.00 0.00 0.50 177.00 309.00 630.00 626.50 683.50 477.50 224.50 1.50 0.00 3130.00
1988 0.00 0.50 30.50 101.50 241.50 463.50 876.50 746.50 507.00 358.50 42.50 0.00 3368.50
1989 0.00 18.50 66.50 315.00 358.50 604.50 897.50 704.00 485.00 143.00 2.00 0.00 3594.50
1990 0.00 0.00 50.00 161.50 265.50 604.00 841.50 695.50 534.50 221.50 6.00 0.00 3380.00
1991 0.00 0.50 0.00 49.00 203.05 a 494.00 765.50 696.50 594.50 360.50 30.00 0.00 3193.55
1992 0.00 0.00 0.00 203.00 496.00 597.50 0.00 z 863.00 618.00 311.50 0.00 0.00 3089.00
1993 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 24.50 x 0.00 z 0.00 b 0.00
1994 0.00 i 0.00 k 0.00 98.00 323.50 689.50 1019.50 901.00 610.50 151.00 0.00 q 0.00 y 3793.00
1995 0.00 z 0.00 z 0.00 o 74.50 149.50 370.50 663.00 704.00 617.00 249.00 11.00 0.00 2838.50
1996 4.50 69.39 a 69.50 215.50 442.50 754.50 979.00 896.50 563.00 270.00 17.50 0.00 z 4281.89
1997 4.13 a 2.00 81.00 186.72 a 0.00 z 603.62 a 774.50 846.00 617.68 b 262.00 51.21 a 0.00 3428.86
1998 0.00 a 0.00 19.00 75.50 141.57 a 452.50 891.50 938.00 580.86 a 108.50 0.00 3.62 a 3211.05
1999 0.00 a 0.00 z 2.00 22.00 h 313.32 c 414.50 f 703.50 680.00 527.50 272.36 c 9.00 0.00 b 2507.68
2000 0.00 b 0.00 2.14 b 0.00 z 0.00 z 0.00 z 707.00 710.50 466.50 155.00 0.00 0.00 2041.14
2001 0.00 0.00 d 21.70 a 69.00 504.50 637.50 727.98 a 794.50 566.00 259.00 11.25 b 0.00 a 3591.43
2002 0.00 z 0.00 15.50 105.50 264.50 375.00 k 0.00 z 653.00 448.85 d 137.50 0.00 0.00 1624.85
2003 0.00 0.00 g 0.00 0.00 135.00 318.50 567.50 445.50 290.50 39.50 0.00 0.00 1796.50
2004 0.00 0.00 0.00 z 6.00 t 73.50 0.00 z 790.00 778.50 527.50 192.50 0.00 0.00 2362.00
2005 0.00 0.00 7.50 23.00 319.00 467.50 896.00 762.00 389.50 133.50 7.50 0.50 3006.00
2006 0.00 0.00 0.00 42.50 419.50 666.00 899.50 693.50 452.50 99.50 7.50 0.00 3280.50
2007 0.00 0.00 75.95 a 160.00 391.00 613.50 848.50 801.00 427.00 105.50 12.00 0.00 3434.45
2008 0.00 0.00 17.50 76.00 282.00 608.50 806.00 804.00 548.00 190.50 4.00 0.00 3336.50
2009 0.00 0.00 11.50 78.00 479.90 e 428.50 874.00 706.50 595.00 107.50 1.50 0.00 3282.40
2010 0.00 0.00 6.64 c 57.00 144.00 585.50 826.50 684.50 492.00 186.50 18.00 0.00 3000.64
2011 0.00 b 0.00 3.00 92.07 a 159.00 455.17 a 710.42 a 725.18 c 556.67 c 213.38 a 0.50 0.00 2915.39
2012 0.00 d 0.00 3.50 131.38 a 366.50 561.72 a 717.65 a 832.00 594.83 a 211.12 b 10.86 a 0.00 d 3429.56
2013 0.00 b 0.00 a 38.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 38.50
Period of Record Statistics
MEAN 0.12 1.47 11.93 87.64 279.71 518.94 756.64 700.90 458.38 147.75 5.31 0.13 2947.33
S.D. 0.66 8.03 18.32 61.27 95.33 96.87 79.58 83.25 91.11 74.45 9.64 0.85 282.35
SKEW 5.98 7.38 2.33 0.88 -0.01 -0.06 0.66 0.18 -0.17 0.57 2.79 7.16 0.07
MAX 4.50 69.39 81.00 315.00 504.50 754.50 1019.50 938.00 618.00 360.50 51.21 7.00 3594.50
MIN 0.00 0.00 0.00 0.00 67.00 293.00 567.50 445.50 259.50 23.00 0.00 0.00 2258.00
NO YRS 88 87 86 86 86 85 88 91 91 89 87 86 70