SNOWFLAKE, ARIZONA

Monthly Total Growing Degree Days

(028012)

Base Temperature = 40 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 494.50 k 986.50 965.50 757.00 360.00 110.50 0.00 3179.50
1898 1.50 40.50 100.00 445.00 509.84 c 827.50 1094.00 1010.50 719.50 336.00 92.00 0.00 5176.34
1899 0.00 19.50 115.00 231.50 496.00 771.00 1039.50 889.50 789.00 e 342.50 47.50 0.00 4741.00
1900 22.00 0.00 189.00 193.00 621.00 826.50 997.00 0.00 z 631.00 0.00 z 0.00 z 0.00 z 3479.50
1901 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 574.50 h 992.50 941.00 692.00 409.00 111.50 48.50 3194.50
1902 12.00 33.50 40.00 350.50 525.50 911.50 965.50 1141.50 686.50 442.50 110.50 22.00 5241.50
1903 7.50 4.00 168.50 328.50 557.50 839.00 1033.50 998.50 683.00 355.98 a 127.50 19.00 5122.48
1904 0.00 156.50 251.00 329.00 576.50 778.50 960.00 1013.50 772.50 493.50 76.50 0.00 5407.50
1905 5.50 44.00 172.00 312.00 0.00 z 679.50 959.00 0.00 z 741.50 0.00 z 0.00 z 0.00 w 2913.50
1906 4.50 38.00 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 42.50
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 604.00 835.50 1045.00 1004.50 794.50 385.50 128.50 40.50 4838.00
1911 79.05 a 23.00 257.00 318.00 499.00 756.00 931.50 910.00 786.00 356.50 71.00 0.00 4987.05
1912 1.50 6.50 90.00 179.00 528.00 741.50 885.00 849.00 491.50 357.50 68.50 2.50 4200.50
1913 0.00 2.50 44.50 179.50 471.00 654.50 856.50 871.50 583.00 281.50 216.00 3.50 4164.00
1914 36.50 31.50 169.00 385.50 535.00 f 944.50 1030.00 1082.00 745.50 511.00 151.00 0.00 5086.50
1915 3.00 39.00 78.50 423.50 460.00 769.14 a 1123.00 935.50 621.00 329.00 142.00 30.48 a 4954.12
1916 10.50 99.50 189.00 391.00 516.50 783.00 939.50 916.50 705.50 437.50 109.00 2.50 5100.00
1917 0.00 35.50 22.73 a 190.50 397.00 774.00 1119.10 a 1021.00 716.50 366.00 60.50 1.50 4704.33
1918 5.00 83.50 196.00 270.00 387.50 953.50 991.00 976.50 785.50 420.00 113.50 8.50 5190.50
1919 0.00 2.50 92.50 415.34 a 619.00 809.00 1058.00 972.00 759.00 229.00 73.00 13.00 5042.34
1920 10.00 20.20 a 121.50 195.50 j 0.00 z 764.50 988.00 909.00 701.50 292.00 75.50 0.00 3882.20
1921 43.50 39.00 191.00 183.00 484.50 783.00 986.00 916.50 723.50 476.00 83.50 66.50 4976.00
1922 11.00 54.00 90.50 156.00 445.00 824.50 1063.50 1022.00 828.50 431.50 65.50 28.50 5020.50
1923 21.50 38.00 48.50 261.50 529.00 703.50 996.50 896.50 607.50 301.00 71.50 21.50 4496.50
1924 0.00 16.00 69.00 337.00 678.50 924.50 948.00 988.00 744.00 348.00 101.50 3.50 5158.00
1925 10.00 34.00 191.00 349.00 734.00 805.34 a 1115.00 973.00 680.00 335.00 47.00 0.50 5273.84
1926 0.00 110.50 121.93 a 436.00 551.50 738.50 870.00 635.00 g 548.50 g 496.50 265.86 a 13.50 3604.30
1927 49.00 96.50 143.50 319.50 561.00 826.00 963.50 894.00 686.00 354.00 154.00 9.50 5056.50
1928 22.50 21.23 a 150.50 190.00 661.50 745.00 992.00 848.00 709.50 434.50 133.50 13.00 4921.23
1929 19.50 6.00 98.50 254.50 540.00 808.50 996.00 1023.00 749.00 493.50 17.00 16.00 5021.50
1930 4.00 93.50 75.50 424.50 291.92 a 946.00 1057.50 1025.50 626.50 351.00 39.00 0.00 4934.92
1931 2.50 24.50 146.22 a 232.00 500.50 768.00 1048.50 935.50 734.00 396.28 a 104.50 4.50 4897.00
1932 0.00 35.00 106.50 266.50 499.50 710.50 945.50 899.50 649.50 348.00 85.00 0.00 a 4545.50
1933 0.00 4.50 115.50 167.00 99.50 r 792.50 1002.00 927.50 0.00 z 497.00 114.00 104.50 3724.50
1934 12.00 30.50 196.00 357.00 583.50 0.00 z 0.00 z 980.00 662.00 509.43 a 204.50 3.00 3537.93
1935 8.00 25.00 80.48 e 162.50 336.50 733.00 0.00 z 910.50 675.00 372.00 0.00 z 0.00 3302.98
1936 10.50 21.50 113.50 370.50 571.00 763.00 804.00 862.00 577.50 269.50 45.00 6.50 4414.50
1937 0.00 22.30 a 29.50 216.00 509.00 904.00 1001.00 1025.00 0.00 z 428.50 0.00 z 10.00 4145.30
1938 23.50 26.50 69.00 189.00 649.00 880.00 1110.50 1031.00 0.00 z 235.50 12.00 0.00 z 4226.00
1939 0.00 z 0.00 z 0.00 z 440.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 138.10 a 50.00 628.10
1940 18.00 53.00 162.00 j 242.50 m 660.00 949.50 1070.00 1040.50 779.00 488.50 100.50 21.50 5180.50
1941 8.00 84.00 121.00 184.00 563.00 717.00 970.50 927.50 699.00 368.00 121.00 18.08 a 4781.08
1942 18.00 16.00 52.50 309.50 530.00 785.50 1139.00 1018.50 767.50 479.00 211.50 43.50 5370.50
1943 49.50 51.50 168.00 410.50 0.00 z 0.00 z 0.00 z 963.00 737.00 440.00 59.00 8.00 2886.50
1944 1.00 21.50 84.50 379.50 0.00 z 0.00 z 0.00 z 0.00 z 693.50 445.00 89.00 10.00 1724.00
1945 4.00 48.00 f 64.07 a 261.00 508.00 676.80 e 1003.50 998.00 710.50 431.70 d 23.00 i 3.88 c 4661.45
1946 1.50 26.32 c 145.70 a 426.50 494.50 837.50 940.13 e 964.00 751.03 a 259.50 h 41.00 38.50 4666.69
1947 6.72 a 36.81 a 140.00 151.50 k 0.00 z 568.50 f 994.14 b 925.19 b 811.00 451.57 a 53.00 4.50 3422.93
1948 29.50 h 34.00 j 55.50 358.50 576.00 824.00 986.50 967.50 783.50 420.00 57.50 39.50 5068.50
1949 6.00 28.00 85.00 353.00 529.50 799.00 997.00 922.00 803.50 344.00 148.50 30.50 5046.00
1950 40.50 62.00 167.00 382.00 528.50 787.80 e 984.50 901.50 635.00 604.50 151.00 51.00 5295.30
1951 16.53 a 44.00 128.00 293.50 549.00 708.50 1048.50 926.00 721.00 419.00 97.22 c 47.02 a 4998.27
1952 18.00 17.00 56.00 304.00 589.50 780.00 969.50 988.00 743.65 d 491.00 97.20 e 8.00 5061.85
1953 32.50 12.00 162.00 305.50 406.50 788.50 1038.50 671.50 h 755.00 428.26 d 136.00 3.00 4067.76
1954 28.50 50.50 113.50 416.50 621.00 658.50 g 1057.00 913.50 515.50 i 540.20 d 119.00 65.50 3925.20
1955 0.00 19.50 112.50 248.65 d 533.00 559.00 f 944.95 c 990.50 752.00 499.50 108.10 a 66.00 4274.70
1956 57.00 19.50 141.10 b 259.00 587.50 879.81 d 971.00 871.00 790.00 436.50 24.11 b 14.47 a 5050.98
1957 65.44 d 160.50 153.50 267.50 460.00 828.00 1041.82 c 908.30 a 678.50 343.50 49.50 20.00 4976.57
1958 2.50 59.00 64.50 250.50 667.50 856.00 985.00 1027.65 a 740.50 450.50 123.50 55.36 c 5282.51
1959 14.50 23.00 108.00 386.50 523.00 881.00 1104.00 930.50 703.00 386.50 66.00 5.88 b 5131.88
1960 1.00 3.00 214.00 324.00 582.50 851.50 1043.50 987.50 735.00 333.50 102.50 10.73 e 5188.73
1961 0.00 16.59 a 103.50 310.50 515.12 a 892.50 1030.00 929.00 642.12 d 343.50 57.00 13.84 c 4853.66
1962 6.00 42.00 39.00 369.00 451.50 678.00 933.00 941.50 743.57 b 403.00 165.00 7.48 b 4779.05
1963 23.50 74.50 110.80 d 278.00 617.86 b 730.86 a 1074.00 918.00 780.50 509.50 76.50 g 0.00 g 5117.52
1964 0.00 0.00 r 47.00 y 19.00 u 612.50 748.50 1068.50 928.00 714.00 526.00 86.00 31.00 4714.50
1965 24.00 27.50 86.00 265.50 444.00 642.00 980.50 940.00 0.00 z 0.00 z 217.50 28.00 3655.00
1966 1.50 2.50 203.00 331.00 641.50 789.50 1070.50 1008.50 0.00 z 0.00 z 0.00 z 0.00 z 4048.00
1967 0.00 z 39.00 201.00 240.50 528.00 759.50 1032.50 926.50 729.00 411.00 139.50 0.00 5006.50
1968 3.00 72.00 101.00 184.00 456.00 737.00 913.50 784.50 632.50 398.00 63.00 1.00 4345.50
1969 28.00 0.00 72.33 a 252.93 a 517.50 695.69 a 984.50 1040.00 738.00 262.00 67.00 39.50 4697.45
1970 27.90 a 47.19 a 58.00 131.38 a 581.50 784.50 1061.50 1004.50 641.00 289.50 93.50 19.00 4739.46
1971 40.50 28.00 193.00 256.00 429.50 793.00 1089.00 980.00 672.50 282.50 94.00 26.50 4884.50
1972 20.50 90.00 261.50 309.50 529.50 791.50 1045.50 946.50 712.00 443.00 24.00 10.50 5184.00
1973 1.00 15.50 33.50 212.50 583.50 790.50 998.00 966.00 689.00 412.00 211.00 29.50 4942.00
1974 14.50 18.00 220.50 274.00 616.50 973.50 1020.00 931.00 721.50 471.00 79.50 10.50 5350.50
1975 20.50 33.50 96.62 a 155.50 462.00 725.50 1006.50 911.50 671.00 393.50 108.00 4.65 a 4588.77
1976 0.00 64.00 77.50 a 273.00 597.50 770.50 1010.50 899.50 685.50 329.50 103.50 2.00 4813.00
1977 1.00 44.50 69.00 347.00 482.00 851.50 1057.00 1003.00 815.00 499.00 143.00 90.00 5402.00
1978 26.50 56.00 235.50 360.00 519.00 819.00 1035.50 963.50 728.00 503.00 139.50 5.00 5390.50
1979 4.00 28.00 88.50 327.50 531.50 790.50 1016.00 898.50 785.50 502.50 44.00 5.50 5022.00
1980 41.00 66.00 61.48 a 293.50 459.00 817.50 1080.00 978.50 772.00 393.00 149.50 65.00 5176.48
1981 28.00 75.50 116.50 420.00 620.00 948.00 1069.50 1006.00 773.00 428.00 191.50 49.00 5725.00
1982 34.00 79.00 177.50 353.50 565.00 750.50 998.00 1008.50 805.50 336.00 110.50 22.00 5240.00
1983 16.50 51.50 152.50 200.00 541.00 782.50 1019.50 1002.00 876.00 484.00 173.50 79.00 5378.00
1984 6.00 18.50 168.00 275.50 733.50 832.50 1047.00 984.00 763.00 310.00 177.50 17.00 5332.50
1985 3.50 41.00 158.00 384.50 598.00 897.50 1085.00 1004.00 667.50 452.00 154.50 15.50 5461.00
1986 43.00 125.00 241.00 364.00 590.00 874.00 976.00 1019.50 667.00 346.00 120.50 14.50 5380.50
1987 21.00 48.50 96.50 366.00 548.50 853.50 927.00 914.00 699.50 546.00 110.50 32.55 a 5163.55
1988 14.50 73.00 145.00 324.50 571.50 873.00 1067.50 961.50 665.00 581.00 190.50 18.00 5485.00
1989 0.50 89.00 276.00 511.00 670.00 834.00 1073.50 934.00 761.50 416.50 119.50 9.50 5695.00
1990 6.00 33.00 197.00 402.00 568.00 926.00 1063.50 933.00 807.50 430.50 127.00 18.00 5511.50
1991 0.50 57.50 97.50 278.50 525.00 730.50 1036.50 999.00 762.50 495.50 105.50 4.50 5093.00
1992 0.00 55.00 163.50 455.50 593.00 768.50 982.00 943.50 741.00 494.00 55.00 20.00 5271.00
1993 41.50 40.00 169.50 351.00 652.00 800.00 982.50 963.50 698.50 423.50 83.00 13.50 5218.50
1994 19.00 37.00 201.00 354.50 577.50 939.50 1011.00 966.50 776.00 396.50 104.00 33.00 5415.50
1995 30.50 108.00 194.50 275.50 482.50 725.00 1016.00 1061.50 786.50 456.50 234.50 72.50 5443.50
1996 45.00 158.00 151.00 376.00 694.50 900.00 1122.50 1041.00 678.00 434.00 125.50 70.00 5795.50
1997 30.50 24.00 234.50 300.00 718.00 791.00 999.50 975.50 859.00 396.50 147.00 5.00 5480.50
1998 20.00 15.50 145.50 202.00 514.00 749.00 1073.50 1038.50 831.00 430.00 134.50 34.50 5188.00
1999 47.00 88.50 276.50 268.00 601.00 866.50 1031.50 990.50 787.00 473.00 247.50 11.00 5688.00
2000 115.50 135.00 180.00 483.00 762.50 953.00 1111.00 1030.50 857.50 489.00 42.50 25.00 6184.50
2001 7.00 76.50 181.00 383.00 764.00 925.00 1056.00 1000.50 838.00 581.50 224.00 13.50 6050.00
2002 31.00 44.00 167.00 502.00 641.00 896.00 1084.00 1037.00 774.00 443.50 119.00 11.50 5750.00
2003 71.00 55.50 158.50 295.00 696.50 888.00 1177.50 1058.00 831.00 613.00 152.50 51.00 6047.50
2004 9.50 33.00 353.50 351.50 654.00 853.00 1034.50 943.00 726.50 418.00 105.50 26.50 5508.50
2005 51.50 66.50 156.50 363.50 683.00 816.00 1098.50 978.50 774.50 486.50 159.00 46.50 5680.50
2006 25.00 71.00 133.00 413.50 724.00 975.00 1120.50 988.50 680.00 402.00 172.50 24.00 5729.00
2007 7.50 74.50 245.93 a 400.50 643.50 906.00 1099.50 1048.00 823.00 458.00 235.00 23.00 5964.43
2008 19.00 49.00 170.50 303.50 528.00 868.00 1066.00 1019.00 776.50 430.00 128.00 25.50 5383.00
2009 23.50 80.50 196.00 304.00 707.00 769.00 1076.50 978.00 737.50 401.50 174.00 2.00 5449.50
2010 0.00 2.00 113.00 342.50 566.00 833.50 1065.00 993.50 826.50 485.50 101.00 86.50 5415.00
2011 0.00 z 0.00 z 0.00 z 380.00 519.50 820.00 1043.50 1077.00 807.00 427.50 91.03 a 10.00 5175.53
2012 16.50 22.00 192.00 435.00 632.50 913.50 1059.50 1056.50 780.00 477.00 172.00 47.00 5803.50
2013 18.50 2.00 207.91 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 228.41
Period of Record Statistics
MEAN 17.86 45.84 139.60 313.94 561.40 814.21 1022.08 967.81 731.85 418.84 115.18 22.69 5183.31
S.D. 19.87 35.01 64.20 85.19 89.00 76.41 62.81 57.94 66.60 78.20 54.12 23.00 406.27
SKEW 1.87 1.24 0.45 -0.06 -0.07 0.15 -0.50 -0.11 -0.51 -0.07 0.54 1.35 -0.04
MAX 115.50 160.50 353.50 511.00 764.00 975.00 1177.50 1141.50 876.00 613.00 265.86 104.50 6184.50
MIN 0.00 0.00 22.73 131.38 291.92 642.00 804.00 784.50 491.50 229.00 12.00 0.00 4164.00
NO YRS 107 106 106 105 102 103 107 106 104 106 105 107 82