BOULDER CITY, NEVADA

Monthly Total Cooling Degree Days

(261071)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200407
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
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 390.50 109.00 12.50 0.00 512.00
1932 0.00 1.00 12.50 112.00 275.50 537.50 720.00 738.50 565.50 134.00 1.00 0.00 3097.50
1933 0.00 0.00 0.00 39.00 169.00 560.00 854.00 732.00 572.50 268.50 2.50 0.00 3197.50
1934 0.00 0.00 76.00 252.00 452.00 458.00 798.00 674.50 491.00 246.50 80.00 0.00 3528.00
1935 0.00 0.00 4.00 79.00 202.00 673.00 717.13 a 705.50 506.00 184.00 0.00 0.00 3070.63
1936 0.00 0.00 9.50 193.00 369.00 632.00 747.50 679.00 433.00 141.50 2.00 0.00 3206.50
1937 0.00 0.00 1.00 58.50 379.00 564.00 779.00 807.00 572.00 211.00 10.00 0.00 3381.50
1938 0.00 0.00 0.00 108.00 256.50 559.50 762.00 701.00 551.00 100.50 0.00 0.00 3038.50
1939 0.00 0.00 24.00 126.50 330.00 555.50 764.50 734.50 330.00 80.50 0.00 0.00 2945.50
1940 0.00 0.00 25.00 103.50 437.00 687.50 764.00 768.50 353.50 202.50 0.50 0.00 3342.00
1941 0.00 0.00 0.00 20.50 290.50 444.00 709.50 552.50 320.00 55.50 6.00 0.00 2398.50
1942 0.00 0.00 5.50 47.50 214.00 529.00 828.00 690.50 469.00 196.00 4.50 0.00 2984.00
1943 0.00 0.00 18.50 183.50 351.50 458.50 750.50 645.50 546.00 181.50 0.00 0.00 3135.50
1944 0.00 0.00 0.00 16.00 233.00 357.50 694.00 729.00 495.50 190.00 3.00 0.00 b 2718.00
1945 0.00 0.00 0.50 107.50 278.50 470.00 753.00 623.32 c 507.00 161.00 11.50 0.00 2912.32
1946 0.00 4.00 0.00 198.50 276.00 607.50 711.50 696.00 487.50 23.50 0.00 0.00 3004.50
1947 0.00 0.00 12.50 115.00 423.50 478.00 747.00 629.50 578.50 166.50 1.50 0.00 3152.00
1948 0.00 0.00 0.00 82.00 266.00 500.50 717.50 691.00 502.50 186.00 0.00 0.00 2945.50
1949 0.00 0.00 0.00 167.00 207.00 528.50 746.00 643.00 559.00 136.50 18.00 0.00 3005.00
1950 0.00 0.00 13.00 158.00 290.00 492.00 689.00 701.50 397.50 262.00 18.50 0.00 3021.50
1951 0.00 0.00 3.00 75.50 282.00 488.50 740.50 603.50 521.00 121.00 0.00 0.00 2835.00
1952 0.00 0.00 0.00 56.50 345.00 409.50 689.00 747.50 487.00 274.00 0.52 a 0.00 3009.02
1953 0.00 a 0.00 16.00 0.00 z 95.00 475.00 729.00 639.00 551.50 151.50 5.00 0.00 2662.00
1954 0.00 1.50 3.50 166.50 391.50 461.00 757.00 604.50 474.50 214.42 a 0.00 0.00 3074.42
1955 0.00 0.00 2.50 25.00 225.00 496.00 640.00 616.00 500.00 228.50 7.50 0.00 2740.50
1956 0.00 0.00 22.50 79.14 a 298.50 586.50 697.00 631.50 573.50 128.00 0.50 0.00 3017.14
1957 0.00 4.00 6.50 50.00 183.50 628.00 727.00 600.00 476.00 56.00 0.00 0.00 2731.00
1958 0.00 0.00 0.00 85.50 391.00 526.00 691.00 732.00 502.00 251.00 6.00 0.00 3184.50
1959 0.00 0.00 1.50 160.50 242.50 636.00 803.00 649.50 394.50 216.00 0.00 0.00 3103.50
1960 0.00 0.00 25.00 136.50 303.50 666.00 823.00 715.50 520.00 133.00 2.50 0.00 3325.00
1961 0.00 0.00 1.50 104.00 249.50 659.00 799.00 688.50 349.50 171.00 0.00 0.00 3022.00
1962 0.00 0.00 9.50 239.00 227.50 533.50 716.50 760.00 530.50 170.00 20.50 0.00 3207.00
1963 0.00 12.00 18.50 40.34 a 353.92 a 407.50 752.00 695.43 a 513.10 a 239.50 3.00 0.00 3035.30
1964 0.00 b 0.00 12.50 70.50 277.00 486.00 783.50 694.40 a 467.50 317.00 0.00 0.00 3108.40
1965 0.00 0.00 2.00 113.28 a 192.50 388.50 662.00 687.00 328.00 217.00 3.50 0.00 2593.78
1966 0.00 0.00 22.50 148.50 397.00 558.00 713.00 746.00 467.50 107.50 7.00 0.00 3167.00
1967 0.00 0.00 20.50 1.50 291.00 441.50 801.00 755.00 482.00 235.50 18.50 0.00 3046.50
1968 0.00 8.00 18.00 57.50 307.00 591.00 707.00 587.50 488.50 161.50 1.00 0.00 2927.00
1969 0.00 0.00 25.00 83.50 392.00 486.50 741.00 835.50 541.00 93.00 0.00 0.00 3197.50
1970 0.00 0.50 2.00 35.00 340.50 569.50 787.00 713.50 417.00 117.50 0.50 0.00 2983.00
1971 0.00 0.00 50.00 64.00 149.50 500.00 806.50 683.50 441.00 154.50 0.00 0.00 2849.00
1972 0.00 4.50 151.00 128.50 331.50 571.50 827.50 667.50 386.50 99.50 0.00 0.00 3168.00
1973 0.00 0.00 0.00 65.00 365.00 583.00 752.00 677.50 427.50 142.00 8.00 0.00 3020.00
1974 0.00 0.00 26.35 a 40.00 336.50 660.00 638.50 637.50 495.50 187.55 a 0.00 0.00 3021.90
1975 0.00 0.00 0.00 b 4.00 232.50 480.50 724.00 637.00 472.50 126.50 0.50 0.00 z 2677.50
1976 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 326.00 102.00 0.00 z 0.00 428.00
1977 0.00 z 0.50 0.50 117.00 107.50 623.00 757.00 688.50 433.50 197.00 2.50 0.00 2927.00
1978 0.00 0.00 12.50 22.50 248.52 a 585.00 751.00 649.00 402.50 264.50 3.50 0.00 2939.02
1979 0.00 0.00 1.00 31.50 j 255.46 d 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 256.46
1980 0.00 0.00 0.00 81.96 b 150.00 414.50 736.50 674.50 467.50 211.00 33.00 0.00 2768.96
1981 0.00 0.00 0.00 160.50 235.50 684.50 788.50 709.50 444.00 60.50 11.50 0.00 3094.50
1982 0.00 2.00 0.50 55.50 256.50 459.00 644.00 638.00 364.50 46.00 0.00 0.00 2466.00
1983 0.00 a 0.00 0.50 3.50 294.50 472.00 669.50 540.00 500.00 104.00 9.00 0.00 2593.00
1984 0.00 0.00 2.50 78.50 506.00 541.00 701.50 636.50 502.00 91.00 2.50 0.00 3061.50
1985 0.00 0.00 0.00 183.00 361.50 679.00 811.17 a 743.50 331.55 a 152.50 4.00 0.00 3266.22
1986 0.00 30.50 96.00 90.50 380.00 664.50 651.00 767.50 306.00 91.00 0.50 0.00 3077.50
1987 0.00 0.00 0.00 191.00 279.00 635.50 656.50 707.00 528.50 255.50 0.00 0.00 3253.00
1988 0.00 a 0.00 29.50 83.00 323.50 619.00 822.50 653.00 463.00 360.50 38.00 0.00 3392.00
1989 0.00 16.50 73.00 292.50 344.50 592.50 849.50 685.50 503.50 187.50 0.00 0.00 3545.00
1990 0.00 0.00 48.50 146.50 276.00 624.00 781.00 679.50 504.50 192.50 7.50 0.00 3260.00
1991 0.00 0.00 0.00 42.00 203.50 457.50 778.50 694.00 494.50 337.50 19.00 0.00 3026.50
1992 0.00 0.00 0.00 152.00 395.00 532.50 702.50 763.00 560.00 235.00 0.50 0.00 3340.50
1993 0.00 0.00 16.50 120.50 357.00 540.50 683.00 691.00 504.50 191.00 0.00 0.00 3104.00
1994 0.00 0.00 23.50 141.00 276.00 705.50 819.50 801.50 515.00 100.50 0.00 0.00 3382.50
1995 0.00 0.50 7.00 75.50 176.00 481.00 827.50 840.00 610.50 240.50 19.00 0.00 3277.50
1996 0.00 9.50 32.00 176.00 432.00 692.00 882.50 839.00 479.50 262.50 2.00 0.00 3807.00
1997 0.00 0.00 74.00 148.00 543.50 566.00 751.00 780.68 a 506.50 169.00 12.50 0.00 3551.18
1998 0.00 0.00 23.50 71.00 168.00 457.76 a 818.50 828.50 462.00 130.00 0.00 0.00 2959.26
1999 0.00 0.00 13.95 a 81.21 a 314.50 588.00 746.00 768.05 b 571.50 320.50 47.00 0.00 3450.71
2000 0.00 j 0.00 z 0.00 z 0.00 z 285.00 m 503.00 i 649.00 h 658.50 f 319.50 m 145.00 g 0.00 g 0.00 g 0.00
2001 0.00 f 0.00 l 11.00 p 80.50 o 373.00 j 421.50 l 343.00 q 416.00 p 312.00 o 190.00 m 17.50 n 0.00 z 0.00
2002 0.00 v 0.00 v 0.00 z 0.00 z 0.00 z 0.00 z 460.50 o 417.00 n 270.50 o 54.00 o 0.00 o 0.00 p 0.00
2003 0.00 q 0.00 n 0.50 m 34.00 412.50 0.00 z 0.00 z 0.00 z 564.00 346.00 0.00 0.00 1356.50
2004 0.00 0.00 114.50 17.50 q 322.06 d 570.60 e 388.00 n 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1007.16
Period of Record Statistics
MEAN 0.00 1.40 17.81 102.18 297.38 545.76 748.30 695.83 475.07 176.77 6.78 0.00 3080.42
S.D. 0.00 4.62 28.77 62.98 90.31 84.61 56.52 66.43 73.54 75.58 12.90 0.00 256.85
SKEW 0.00 4.59 2.65 0.66 0.17 0.02 0.06 0.17 -0.63 0.33 3.50 0.00 -0.09
MAX 0.00 30.50 151.00 292.50 543.50 705.50 882.50 840.00 610.50 360.50 80.00 0.00 3807.00
MIN 0.00 0.00 0.00 1.50 95.00 357.50 638.50 540.00 306.00 23.50 0.00 0.00 2398.50
NO YRS 67 68 68 66 69 67 66 66 69 69 69 69 63