SNOWFLAKE, ARIZONA

Monthly Total Heating Degree Days

(028012)

Base Temperature = 65 F

File last updated on Apr 3, 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
1897 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 19.00 k 0.00 0.00 39.00 425.50 707.00 1090.50 2262.00
1898 1300.00 793.50 732.50 306.00 265.16 c 75.00 0.00 0.00 58.50 445.00 761.50 1353.50 6090.66
1899 1187.50 850.50 701.50 518.50 279.00 66.00 0.50 1.50 51.60 e 451.00 784.50 1000.50 5892.60
1900 899.50 963.00 610.50 565.50 154.00 30.50 4.00 0.00 z 129.00 0.00 z 0.00 z 0.00 z 3356.00
1901 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 56.50 h 48.00 7.50 83.50 366.00 651.50 936.00 2092.50
1902 970.50 732.50 798.50 403.50 271.50 27.00 4.00 0.00 98.00 332.50 718.00 984.50 5340.50
1903 995.00 1074.50 646.00 421.50 218.50 29.00 0.00 4.50 115.00 419.02 a 622.50 936.50 5482.02
1904 1150.00 638.00 525.00 421.00 202.50 42.50 2.50 0.00 37.00 281.50 707.00 1005.00 5012.00
1905 958.50 774.00 610.00 438.00 0.00 z 94.50 0.00 0.00 z 45.00 0.00 z 0.00 z 406.50 w 2920.00
1906 1191.50 685.50 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 0.00 z 1877.00
1907 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
1908 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
1909 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
1910 0.00 z 0.00 z 0.00 z 0.00 z 195.00 6.50 0.00 0.00 30.00 389.50 637.00 891.50 2149.50
1911 844.23 a 744.50 518.00 432.00 276.00 37.00 0.50 3.50 9.00 418.50 820.50 1273.00 5376.73
1912 1034.00 814.00 697.50 571.50 248.00 48.50 17.00 9.00 258.50 421.00 753.00 1087.50 5959.50
1913 1071.50 891.00 854.50 574.00 304.00 117.50 35.00 14.00 180.00 493.50 536.50 979.00 6050.50
1914 912.00 768.00 614.00 365.00 110.50 f 19.50 1.00 4.00 65.00 271.50 642.50 1060.00 4722.50
1915 1059.00 744.50 735.50 326.50 315.00 37.76 a 5.50 10.00 136.00 446.00 679.00 946.53 a 5441.29
1916 1026.00 687.50 607.00 359.00 258.50 52.00 0.00 10.00 86.50 337.50 787.50 1221.50 5433.00
1917 1049.50 848.00 896.42 a 577.50 378.00 87.00 0.00 a 0.00 91.00 415.00 732.50 919.00 5993.92
1918 1099.50 675.00 587.50 480.50 387.50 20.50 2.50 3.00 57.00 355.00 796.50 1156.00 5620.50
1919 1406.50 893.50 758.00 339.83 a 168.00 102.50 0.00 0.00 49.50 554.00 747.00 933.00 5951.83
1920 1020.00 762.29 a 672.50 318.00 j 0.00 z 49.50 0.50 31.50 83.00 511.00 712.00 1069.00 4911.29
1921 926.50 793.50 595.00 588.50 291.50 54.00 0.50 0.00 46.50 307.00 740.00 867.50 5210.50
1922 1120.00 806.00 776.00 622.50 330.00 42.50 0.00 0.00 12.50 353.50 747.50 862.00 5672.50
1923 887.50 857.50 803.50 492.00 246.00 110.50 2.00 2.50 156.00 475.00 713.50 981.00 5727.00
1924 1139.00 785.00 774.50 413.50 101.00 9.50 25.00 0.50 93.50 427.00 699.00 1039.50 5507.00
1925 1127.50 703.50 611.00 431.50 106.00 36.21 a 0.00 0.00 90.00 440.00 810.00 1112.00 5467.71
1926 1027.00 638.50 722.30 a 314.00 223.50 70.50 17.00 5.00 g 76.50 g 281.00 484.14 a 1077.00 4854.94
1927 807.00 628.00 665.00 446.00 217.50 44.00 0.50 0.00 88.50 421.00 612.50 972.00 4902.00
1928 963.00 848.77 a 653.50 600.50 121.50 56.50 1.50 19.00 74.50 340.50 721.50 1071.50 5472.27
1929 1015.00 914.50 749.50 502.00 236.00 74.00 0.00 0.00 56.50 283.50 912.50 867.00 5610.50
1930 1002.00 609.50 744.00 325.50 483.08 a 8.50 0.00 0.00 154.00 424.00 802.50 1189.00 5742.08
1931 1158.00 719.50 658.23 a 518.00 276.50 52.00 0.00 2.00 49.50 378.72 a 869.50 1212.00 5893.95
1932 1208.50 763.00 742.00 488.50 275.50 117.50 0.00 12.50 103.50 429.00 697.00 1288.05 a 6125.05
1933 1319.00 987.50 685.50 605.50 227.50 r 68.50 0.00 6.00 0.00 z 282.50 638.00 675.50 5268.00
1934 973.00 739.00 581.50 393.00 191.50 0.00 z 0.00 z 0.00 107.50 265.57 a 683.50 1017.00 4951.57
1935 1023.00 829.00 791.10 e 590.50 438.50 48.00 0.00 z 1.00 105.00 410.00 0.00 z 1035.00 5271.10
1936 967.50 790.50 711.50 395.50 204.00 91.00 90.00 3.50 174.00 505.50 744.00 945.50 5622.50
1937 1504.00 822.89 a 786.00 535.00 266.00 3.00 0.00 0.00 0.00 z 346.50 0.00 z 851.00 5114.39
1938 957.50 807.50 730.50 566.50 182.00 1.50 0.00 2.50 0.00 z 543.00 877.00 0.00 z 4668.00
1939 0.00 z 0.00 z 0.00 z 310.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 642.41 a 854.50 1806.91
1940 916.00 763.00 384.00 j 182.50 m 123.50 9.00 1.00 0.00 22.00 287.00 737.50 833.00 3692.00
1941 886.50 644.50 662.00 572.00 217.00 79.50 1.00 0.50 85.00 407.00 706.00 916.57 a 5177.57
1942 959.50 878.50 801.50 442.00 246.00 36.00 0.00 0.00 37.00 296.00 561.00 835.00 5092.50
1943 851.50 702.50 614.00 342.00 0.00 z 0.00 z 0.00 z 0.50 46.00 335.00 756.50 994.00 4642.00
1944 1167.00 804.00 772.00 370.50 0.00 z 0.00 z 0.00 z 0.00 z 71.50 330.00 760.50 986.00 5261.50
1945 1023.50 545.00 f 784.30 a 526.50 267.00 93.60 e 0.00 0.00 121.00 349.04 d 573.00 i 1151.43 c 4316.37
1946 1215.50 824.88 c 652.03 a 323.50 280.50 12.50 3.58 e 0.00 47.59 a 315.50 h 791.00 871.00 5022.08
1947 1111.35 a 727.48 a 659.50 324.00 k 0.00 z 56.50 f 1.07 b 0.00 b 23.50 327.57 a 830.50 1018.00 4698.97
1948 687.00 h 558.50 j 833.50 391.50 202.50 28.00 0.00 0.00 32.50 355.00 847.00 868.50 3558.50
1949 1222.50 840.50 721.00 415.50 248.00 48.50 0.00 3.50 14.00 442.00 609.00 1048.00 5612.50
1950 938.00 711.00 623.00 368.00 250.50 51.00 e 0.00 0.00 130.00 175.00 624.00 833.50 4704.00
1951 948.08 a 816.00 725.50 460.50 248.00 100.00 0.00 9.00 52.00 356.00 734.44 c 974.95 a 5424.48
1952 906.00 845.00 858.50 448.50 185.50 32.00 0.00 0.00 58.85 d 284.00 841.20 e 1028.00 5487.55
1953 858.00 880.50 662.00 447.00 375.50 45.50 0.00 0.00 h 32.50 346.74 d 666.50 1131.00 5445.24
1954 906.50 700.00 735.00 333.50 158.00 16.00 g 0.00 6.00 33.00 i 240.54 d 648.50 985.50 4713.54
1955 1057.00 943.50 709.00 518.65 d 242.00 67.50 f 1.66 c 0.00 75.00 276.50 683.28 a 807.00 5313.59
1956 784.00 960.50 679.86 b 506.00 192.50 5.19 d 0.50 8.50 14.50 341.50 909.64 b 1063.82 a 5466.51
1957 826.09 d 551.50 638.00 487.50 315.00 39.50 0.00 c 4.13 a 92.00 431.50 810.00 935.00 5130.23
1958 1055.50 705.50 799.50 507.50 145.00 27.50 0.00 0.00 a 74.50 327.50 729.50 870.77 c 5242.77
1959 950.00 789.00 719.00 363.50 253.00 11.50 0.00 0.50 99.50 404.00 757.00 996.28 b 5343.28
1960 1211.50 927.50 590.50 428.50 195.50 10.50 0.00 0.50 74.50 442.00 712.00 1170.25 e 5763.25
1961 1121.00 820.30 a 717.50 439.50 261.95 a 29.00 0.00 2.50 111.92 d 455.50 756.50 1077.25 c 5792.92
1962 1164.00 828.50 888.50 381.00 324.00 112.50 2.00 5.00 61.07 b 372.00 612.00 927.33 b 5677.90
1963 1144.50 709.50 739.98 d 477.50 161.41 b 78.62 a 0.00 2.00 14.00 265.50 555.00 g 863.50 g 3593.02
1964 1129.00 389.50 r 110.50 y 218.00 u 203.50 38.50 0.00 0.00 89.00 249.00 774.00 890.00 3373.00
1965 868.50 839.00 775.00 489.00 331.00 117.00 0.00 2.50 0.00 z 0.00 z 568.00 873.00 4863.00
1966 1086.00 889.00 633.50 419.00 135.00 40.00 0.00 1.50 0.00 z 0.00 z 0.00 z 0.00 z 3204.00
1967 0.00 z 733.50 613.00 512.00 253.50 62.50 0.00 0.00 58.00 369.00 621.00 1264.50 4487.00
1968 1260.00 695.50 705.50 570.50 319.00 88.00 1.00 50.50 133.50 377.00 758.00 1127.50 6086.00
1969 865.00 873.50 897.45 a 503.28 a 263.00 73.97 a 6.00 0.00 57.50 517.50 759.00 869.00 5685.19
1970 1021.45 a 694.30 a 758.00 645.00 a 195.50 65.00 0.00 0.00 143.50 497.50 676.50 918.50 5615.25
1971 1022.00 811.00 649.00 496.00 345.50 78.00 0.00 0.00 132.50 507.50 707.50 1016.50 5765.50
1972 926.00 750.50 531.50 441.00 253.50 23.50 0.00 1.50 71.50 352.00 794.50 951.00 5096.50
1973 1075.00 779.50 802.00 558.00 203.00 62.50 1.50 2.50 84.00 363.00 597.50 909.00 5437.50
1974 970.50 845.00 574.00 480.50 168.00 17.00 0.00 0.00 93.00 306.50 707.00 1024.50 5186.00
1975 1024.50 811.00 746.07 a 612.00 313.00 52.00 0.00 3.00 101.50 388.00 756.50 1018.35 a 5825.92
1976 1023.00 700.00 764.67 a 494.50 180.00 54.50 0.00 6.50 80.00 447.50 737.50 1018.00 5506.17
1977 1080.00 763.00 770.00 418.50 297.00 5.50 0.00 0.00 39.00 277.00 634.00 733.50 5017.50
1978 852.50 743.00 543.00 391.00 256.50 30.50 0.00 1.00 64.50 272.00 631.00 1102.50 4887.50
1979 1026.50 775.50 713.50 425.00 245.00 49.50 0.50 19.50 40.00 275.00 825.50 954.00 5349.50
1980 868.00 709.00 746.58 a 466.50 316.00 47.00 0.00 0.00 27.50 387.00 676.50 783.50 5027.58
1981 807.50 689.50 681.00 336.00 173.00 11.50 0.00 0.00 23.00 349.50 575.00 813.00 4459.00
1982 928.50 714.50 618.00 396.50 210.50 57.00 2.00 0.00 48.50 440.00 654.00 914.50 4984.00
1983 940.00 677.50 629.00 577.00 258.00 23.00 2.50 0.00 28.50 291.00 642.50 754.50 4823.50
1984 965.50 822.00 622.50 480.00 87.50 20.00 0.00 0.50 52.50 467.50 604.50 882.50 5005.00
1985 952.50 789.00 632.50 365.50 178.00 34.50 0.00 0.00 106.50 323.00 649.00 923.50 4954.00
1986 802.00 662.50 541.50 386.00 198.50 11.50 0.00 0.00 117.50 429.00 659.00 928.50 4736.00
1987 1033.00 775.50 747.00 384.00 226.50 6.00 0.50 3.50 72.00 229.00 712.50 984.25 a 5173.75
1988 991.50 700.50 682.00 428.50 208.50 23.00 0.00 0.00 107.00 194.00 650.00 959.00 4944.00
1989 1033.50 722.00 522.00 239.50 126.50 32.00 0.00 6.00 55.50 365.00 694.00 972.00 4768.00
1990 968.00 811.50 619.50 348.00 213.00 12.50 0.00 1.00 42.50 344.50 671.50 1145.00 5177.00
1991 958.00 693.50 730.50 473.50 250.00 55.50 0.00 0.00 32.00 291.00 700.00 950.50 5134.50
1992 1221.00 702.00 616.00 294.50 182.00 30.00 4.00 5.50 34.00 281.00 807.50 1069.50 5247.00
1993 801.00 696.00 614.50 399.00 130.00 47.50 0.00 0.00 91.00 353.00 736.50 947.50 4816.00
1994 940.00 771.50 580.50 396.00 211.00 0.50 0.00 1.00 35.50 379.00 732.00 855.00 4902.00
1995 882.50 595.00 600.00 476.00 292.50 73.00 1.00 0.00 38.00 319.00 522.00 851.00 4650.00
1996 838.50 608.00 639.50 377.50 106.00 2.00 0.00 0.00 108.50 354.00 659.00 817.00 4510.00
1997 963.50 771.00 561.00 452.50 88.50 28.00 0.00 0.00 10.00 397.00 618.50 1061.50 4951.50
1998 849.00 787.50 673.50 557.50 261.00 59.00 0.00 0.00 18.50 345.50 627.00 918.00 5096.50
1999 842.00 663.00 500.00 501.50 189.00 43.50 0.00 0.00 24.00 302.00 532.50 985.50 4583.00
2000 761.00 609.00 613.50 267.00 76.50 2.00 0.00 1.50 27.00 296.00 817.00 865.00 4335.50
2001 961.00 691.00 605.00 367.00 61.50 13.00 0.00 0.00 11.00 197.00 583.00 994.50 4484.00
2002 912.00 776.00 665.50 248.50 165.00 3.50 0.00 0.00 49.00 331.50 661.00 993.00 4805.00
2003 741.50 736.50 637.00 457.00 142.50 7.50 0.00 0.00 18.00 170.00 642.50 871.50 4424.00
2004 893.00 839.00 433.00 398.50 125.50 9.50 0.00 1.00 90.50 357.00 690.00 933.00 4770.00
2005 782.50 665.50 636.00 386.50 144.00 36.50 0.00 0.00 51.00 292.00 642.50 911.00 4547.50
2006 918.00 708.50 726.50 336.50 80.00 1.00 0.00 0.00 101.00 374.00 620.50 960.00 4826.00
2007 1074.50 696.50 575.57 a 349.50 142.00 12.50 0.00 0.00 41.00 318.00 535.00 965.50 4710.07
2008 986.50 777.50 639.50 446.50 271.00 29.00 0.00 0.50 18.00 346.00 640.50 876.00 5031.00
2009 889.50 699.00 588.50 453.50 81.50 47.50 0.00 1.00 65.50 384.00 625.50 1056.00 4891.50
2010 995.50 789.50 691.50 409.00 210.00 22.00 0.00 0.00 21.00 295.50 744.00 773.50 4951.50
2011 0.00 z 0.00 z 0.00 z 374.50 265.50 30.00 0.00 0.00 18.00 347.50 695.17 a 1101.50 2832.17
2012 875.50 776.50 632.50 315.00 150.00 1.50 0.00 0.00 41.00 298.00 605.00 904.00 4599.00
2013 1136.00 875.50 583.66 b 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 2595.16
Period of Record Statistics
MEAN 1002.48 768.50 679.17 441.80 223.39 42.44 2.69 2.84 69.38 359.80 699.49 976.37 5247.43
S.D. 140.18 90.92 91.27 89.93 79.57 30.66 10.74 6.66 43.76 79.46 86.23 123.20 457.95
SKEW 0.77 0.42 0.14 0.13 0.37 0.69 6.18 4.64 1.15 0.11 0.10 0.52 0.05
MAX 1504.00 1074.50 897.45 645.00 483.08 117.50 90.00 50.50 258.50 554.00 912.50 1353.50 6125.05
MIN 741.50 551.50 433.00 239.50 61.50 0.50 0.00 0.00 9.00 170.00 484.14 675.50 4335.50
NO YRS 107 106 106 105 102 103 107 106 104 106 105 107 82