IRON MTN, CALIFORNIA

Monthly Total Cooling Degree Days

(044297)

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
1935 14.50 j 29.00 40.00 190.00 354.00 793.00 899.50 849.50 668.50 262.50 0.00 0.50 4086.50
1936 0.00 4.00 154.50 404.50 584.00 789.50 974.50 906.50 637.50 313.50 54.00 0.00 4822.50
1937 0.00 0.00 31.00 196.50 519.50 731.00 948.00 947.00 776.50 391.50 43.00 0.50 4584.50
1938 0.00 0.00 8.00 219.50 461.00 723.50 914.00 886.00 732.50 263.50 1.00 16.50 4225.50
1939 0.00 0.00 103.50 277.00 510.00 710.00 925.50 945.00 500.50 252.00 50.00 0.50 4274.00
1940 4.50 3.50 111.00 236.00 607.00 831.00 900.50 927.00 561.00 335.00 10.00 9.00 4535.50
1941 0.00 0.00 19.00 87.00 480.50 620.00 892.00 753.00 455.00 168.50 67.50 0.00 3542.50
1942 0.00 0.00 26.00 171.00 403.50 702.50 1006.50 853.50 601.50 341.50 52.00 0.00 4158.00
1943 0.00 23.50 63.50 275.50 522.50 564.50 923.50 825.00 708.50 342.50 11.50 0.00 4260.50
1944 0.00 g 1.50 27.00 119.50 414.50 526.55 a 830.00 872.00 641.00 339.00 31.50 0.00 3802.55
1945 0.00 3.50 4.00 204.50 484.50 639.50 930.50 842.00 695.50 357.00 43.00 2.50 4206.50
1946 0.00 7.00 33.00 328.00 468.00 766.50 875.50 887.50 689.50 167.00 0.00 0.00 4222.00
1947 0.00 11.50 90.00 248.50 573.50 672.00 920.00 781.50 709.50 308.00 14.50 0.00 4329.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 857.50 833.50 646.50 320.50 6.00 j 0.00 2658.00
1949 0.00 0.00 14.50 266.50 384.50 724.50 912.43 a 824.50 750.50 270.00 113.50 2.00 4262.93
1950 0.50 7.50 78.00 324.00 428.50 665.00 878.50 878.00 600.00 429.50 120.00 7.50 4417.00
1951 3.00 8.00 57.50 199.00 466.50 650.00 932.50 806.50 696.00 302.50 6.00 0.00 4127.50
1952 0.00 0.00 25.00 191.50 571.00 606.00 874.00 943.00 705.00 497.00 49.50 0.00 4462.00
1953 1.00 10.50 64.50 184.50 238.00 655.50 989.50 879.00 713.00 318.00 94.00 0.00 4147.50
1954 1.50 71.00 19.50 347.50 533.00 659.50 941.88 a 803.00 688.00 384.00 75.50 0.00 4524.38
1955 0.00 2.50 43.00 121.50 373.50 660.00 834.50 806.50 673.00 428.00 60.00 5.00 4007.50
1956 0.00 0.00 84.50 192.50 459.50 759.00 898.00 826.50 781.50 279.00 41.50 1.00 4323.00
1957 0.00 46.50 66.50 204.00 336.00 812.00 948.50 847.50 667.00 207.00 0.00 0.00 4135.00
1958 0.00 4.00 6.00 219.50 615.50 747.50 912.00 934.00 727.76 a 446.50 61.50 15.50 4689.76
1959 0.00 0.00 88.50 334.00 429.50 826.50 1024.00 831.00 615.50 379.00 28.00 6.00 4562.00
1960 0.00 1.00 122.50 268.00 452.00 861.50 984.00 902.50 720.50 281.00 31.00 0.00 4624.00
1961 0.50 1.50 34.50 237.00 431.00 847.00 956.00 834.50 513.50 291.50 8.00 0.00 4155.00
1962 9.00 6.00 28.50 382.00 358.00 691.50 921.50 946.00 703.00 334.50 101.00 11.00 4492.00
1963 0.00 56.00 34.00 101.50 488.50 561.00 927.50 860.50 663.50 375.50 54.00 0.00 4122.00
1964 0.00 0.00 36.00 167.50 395.50 638.50 914.00 864.00 608.00 493.50 20.00 0.00 4137.00
1965 8.00 11.50 16.50 208.50 380.50 513.00 878.00 883.00 512.50 418.00 61.00 0.00 3890.50
1966 0.00 0.00 70.50 295.00 545.50 727.24 a 908.50 934.50 667.00 289.00 56.50 6.50 4500.24
1967 2.00 0.50 75.50 35.50 443.50 611.00 984.50 971.50 643.50 404.00 112.00 0.00 b 4283.50
1968 0.00 56.50 67.50 130.00 435.00 724.00 896.93 a 750.00 662.00 317.50 41.00 0.00 4080.43
1969 0.00 0.00 58.50 193.50 538.00 637.50 890.50 1014.50 696.50 211.50 58.00 0.00 4298.50
1970 0.00 15.00 33.00 77.50 478.00 724.00 905.00 897.00 572.50 236.50 40.50 0.00 3979.00
1971 30.50 17.50 97.50 159.50 286.00 682.50 979.00 806.00 616.50 216.00 17.50 0.00 3908.50
1972 0.00 22.00 245.00 247.00 456.00 702.00 973.00 814.00 593.00 174.00 3.50 0.00 4229.50
1973 0.00 0.00 0.00 z 161.00 563.50 819.00 972.50 871.00 612.50 320.50 61.00 0.50 4381.50
1974 0.00 1.50 105.00 169.50 496.00 846.00 882.00 860.00 732.00 353.50 22.00 0.00 4467.50
1975 0.00 0.50 27.00 59.50 424.00 711.00 933.50 853.00 701.50 275.50 45.00 7.00 4037.50
1976 7.00 7.50 41.50 138.00 510.00 726.00 887.50 775.50 518.28 a 268.50 58.50 0.00 3938.28
1977 0.00 28.00 12.00 264.50 238.50 796.50 964.00 893.50 626.50 368.00 59.50 0.00 4251.00
1978 0.00 1.00 96.50 143.50 445.00 802.50 968.50 842.50 586.50 441.50 49.00 0.00 4376.50
1979 0.00 0.00 32.00 185.50 442.00 742.50 877.50 756.50 742.50 362.50 7.00 4.00 4152.00
1980 0.00 6.50 4.50 200.50 286.00 684.00 972.50 852.50 662.50 373.00 84.50 11.00 4137.50
1981 0.50 20.50 67.50 320.00 456.50 881.00 980.50 926.00 702.86 b 235.50 87.50 0.00 4678.36
1982 0.00 37.50 24.50 213.00 430.00 601.50 809.50 815.50 542.50 222.50 6.50 y 0.00 u 3696.50
1983 0.00 0.50 33.50 83.00 470.50 661.50 868.50 754.00 722.00 299.00 76.00 0.00 3968.50
1984 6.50 5.00 79.00 189.50 636.50 692.50 874.00 837.50 715.50 200.50 25.50 0.00 4262.00
1985 0.00 17.50 23.50 329.50 511.50 809.00 971.50 892.50 447.50 271.50 52.00 3.00 4329.00
1986 2.50 45.00 171.50 189.50 440.00 804.00 822.50 927.00 462.00 235.00 32.00 0.00 4131.00
1987 0.00 13.00 32.00 358.50 507.50 822.50 857.00 890.50 654.50 382.50 10.50 0.00 4528.50
1988 0.00 11.50 87.50 208.00 503.23 a 721.00 997.50 851.50 644.00 522.50 96.00 2.00 4644.73
1989 3.50 45.00 176.50 448.50 539.50 763.50 995.00 841.00 688.00 0.00 z 86.00 3.50 4590.00
1990 0.00 22.00 126.50 276.50 459.00 768.62 a 934.00 818.00 677.50 363.50 66.00 0.00 4511.62
1991 0.00 27.00 2.50 143.28 a 352.50 600.50 858.50 824.00 663.50 471.50 80.69 a 0.00 4023.97
1992 0.50 8.50 16.50 300.50 538.00 684.50 846.00 893.00 691.00 333.00 17.00 0.00 4328.50
1993 0.00 1.00 105.50 166.00 499.00 633.00 790.50 816.50 614.00 299.50 4.14 a 0.00 3929.14
1994 0.00 3.00 109.50 311.50 449.50 854.00 919.50 952.00 714.50 248.50 4.50 0.00 4566.50
1995 0.00 37.50 74.00 180.00 356.00 670.00 958.00 1021.00 792.00 375.50 133.50 0.00 4597.50
1996 0.50 67.50 109.00 304.00 597.50 800.00 1031.50 962.00 659.00 392.50 47.50 0.00 4971.00
1997 0.00 6.00 204.00 264.00 739.50 720.00 864.50 679.00 i 732.50 298.00 68.00 0.00 3896.50
1998 0.00 0.00 58.50 147.50 337.00 0.00 z 989.00 969.50 621.50 262.00 10.00 8.00 3403.00
1999 0.00 0.00 z 31.50 156.96 b 459.50 721.50 874.00 876.50 676.50 417.95 c 89.50 0.00 4303.91
2000 6.00 0.00 d 79.00 365.89 b 620.50 810.52 a 938.00 901.14 b 661.73 d 277.97 a 0.00 b 0.00 4660.75
2001 0.00 a 1.62 b 135.50 197.50 693.22 b 819.31 a 884.00 908.50 733.00 395.77 a 104.48 a 0.00 c 4872.90
2002 0.00 16.00 77.50 303.00 507.00 839.00 1008.00 894.00 708.50 284.00 59.50 0.00 4696.50
2003 14.50 11.00 89.50 126.35 d 562.00 780.00 0.00 z 941.92 e 775.00 537.50 9.50 0.50 3847.77
2004 0.00 1.50 278.50 272.00 554.50 782.50 964.50 899.00 644.00 276.50 2.00 0.00 4675.00
2005 3.00 j 0.00 60.00 173.00 550.50 718.50 1026.00 894.50 618.50 338.00 79.50 1.00 4459.50
2006 0.00 13.50 29.00 170.50 646.50 884.00 1028.50 911.00 646.50 278.50 91.00 0.00 4699.00
2007 0.00 22.00 190.00 276.50 614.00 796.00 1005.50 959.00 654.50 326.00 151.50 0.00 4995.00
2008 0.00 2.50 i 102.00 252.00 408.50 831.50 879.50 936.00 727.00 397.50 97.50 f 4.00 4538.00
2009 17.00 g 6.00 86.36 c 227.00 595.00 f 670.50 1044.04 c 903.77 e 793.00 264.00 84.50 0.00 4079.16
2010 0.00 5.00 34.00 145.50 366.50 765.00 1006.50 912.00 704.00 345.13 a 91.50 1.00 4376.13
2011 6.20 a 0.00 i 82.50 h 256.55 a 406.00 721.55 a 909.52 c 760.00 g 714.64 b 361.84 b 6.50 0.00 b 3382.81
2012 2.00 10.74 b 86.36 c 286.61 b 628.00 814.00 894.83 e 947.64 b 761.38 a 302.50 f 47.50 k 1.19 e 4432.74
2013 0.00 g 0.50 200.50 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 201.00
Period of Record Statistics
MEAN 1.51 12.29 72.07 220.89 475.66 727.95 926.63 875.62 661.00 326.60 49.79 1.70 4338.49
S.D. 4.32 16.91 57.43 83.39 99.49 85.61 57.54 60.37 77.02 81.62 36.74 3.55 288.58
SKEW 4.78 1.81 1.38 0.28 0.02 -0.31 0.00 0.00 -0.85 0.35 0.45 2.50 0.06
MAX 30.50 71.00 278.50 448.50 739.50 884.00 1044.04 1021.00 793.00 537.50 151.50 16.50 4995.00
MIN 0.00 0.00 2.50 35.50 238.00 513.00 790.50 750.00 447.50 167.00 0.00 0.00 3542.50
NO YRS 73 75 76 77 76 76 77 76 78 76 74 77 63