GRAND CANYON NP 2, ARIZONA

Monthly Total Growing Degree Days

(023596)

Base Temperature = 40 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 201203
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
1976 0.00 z 0.00 z 0.00 z 0.00 z 389.50 603.00 819.00 767.50 544.00 210.50 70.50 1.50 3405.50
1977 1.50 17.50 21.00 207.00 274.50 699.00 842.00 820.50 604.50 346.68 a 59.50 18.00 3911.68
1978 0.00 2.50 92.00 147.50 346.68 a 668.00 854.50 785.00 547.00 378.00 64.00 0.00 3885.18
1979 0.00 0.00 a 6.50 158.50 377.50 642.00 851.47 a 720.50 0.00 z 381.50 14.00 16.00 3167.97
1980 5.50 11.00 5.00 172.00 250.50 601.03 a 848.00 784.50 599.50 274.50 99.44 c 40.50 3691.48
1981 4.50 22.00 27.00 233.00 386.00 737.07 a 844.00 788.50 570.50 208.50 93.62 a 24.00 3938.69
1982 9.50 14.50 25.50 145.00 343.50 563.00 776.00 767.50 570.50 176.00 13.00 1.50 3405.50
1983 2.50 0.50 33.50 69.50 337.50 583.00 807.50 750.00 643.50 266.50 98.50 3.00 3595.50
1984 1.00 0.00 z 23.00 154.50 561.50 627.50 793.00 730.00 592.50 117.50 49.00 0.00 3649.50
1985 0.00 1.50 26.50 183.50 400.50 686.00 864.50 795.00 423.50 233.50 32.00 0.00 3646.50
1986 14.00 36.50 105.00 149.50 388.00 669.00 768.50 823.50 429.50 168.00 17.00 0.00 3568.50
1987 2.50 3.00 15.50 197.00 338.50 649.50 739.50 714.00 516.00 348.00 29.50 5.50 3558.50
1988 1.50 9.00 28.00 122.00 355.50 671.50 863.50 747.00 485.50 389.00 89.00 0.00 3761.50
1989 0.00 15.50 112.50 0.00 z 429.00 646.00 884.00 736.00 555.50 43.92 a 0.00 z 2.00 3424.42
1990 2.50 5.00 77.00 197.50 362.50 732.00 834.00 746.00 621.00 295.50 64.50 0.00 3937.50
1991 0.00 17.00 10.00 104.00 314.00 562.00 851.50 817.00 565.50 393.00 62.00 0.00 3696.00
1992 0.00 a 0.50 23.50 252.50 432.00 573.50 778.00 760.00 544.00 330.00 6.50 0.00 3700.50
1993 0.00 1.00 49.50 168.50 416.50 577.50 789.50 726.00 489.00 206.00 4.50 0.00 3428.00
1994 0.50 0.00 60.00 161.50 287.00 i 766.00 899.00 880.50 628.00 201.50 37.50 0.00 3634.50
1995 0.00 28.00 63.50 120.00 240.00 534.00 809.00 873.50 624.50 306.50 128.00 27.50 3754.50
1996 2.00 55.50 59.00 187.00 514.50 738.50 912.50 834.50 533.00 295.00 60.50 0.00 z 4192.00
1997 2.50 11.00 0.00 z 0.00 z 0.00 z 627.00 826.50 836.00 647.50 0.00 z 0.00 z 0.00 z 2950.50
1998 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 257.50 30.00 1.00 288.50
1999 8.50 9.50 88.00 115.86 a 382.50 637.00 809.62 a 754.33 a 548.00 350.50 181.00 4.50 3889.31
2000 29.50 26.50 41.00 297.00 593.50 746.50 878.50 808.50 648.50 273.32 a 4.00 6.50 4353.32
2001 0.00 8.50 69.00 193.50 588.50 734.50 843.50 816.50 704.00 408.50 123.00 0.00 4489.50
2002 12.50 17.00 80.00 294.50 435.00 776.00 978.50 895.50 615.50 265.00 65.00 0.50 4435.00
2003 48.00 14.50 71.00 123.50 514.00 725.50 992.50 875.50 693.00 493.50 37.00 12.50 4600.50
2004 0.50 6.50 222.00 178.00 477.00 724.50 838.00 777.50 572.50 249.50 28.00 18.00 4092.00
2005 19.00 6.50 47.00 186.00 479.50 648.00 955.00 800.50 608.00 372.00 140.00 32.00 4293.50
2006 8.00 25.00 22.65 e 261.00 579.00 807.50 966.00 804.50 552.50 274.50 111.00 11.00 4422.65
2007 4.50 21.00 163.50 271.00 520.00 757.00 991.00 870.50 663.50 351.50 216.00 22.00 4851.50
2008 1.00 5.50 86.00 200.00 324.00 730.00 901.50 886.00 616.00 356.50 96.67 c 14.43 b 4217.60
2009 22.00 19.83 d 73.00 161.00 436.50 f 0.00 z 915.50 621.00 g 664.50 47.00 u 52.00 n 0.00 f 1855.83
2010 0.00 d 0.00 e 36.17 d 125.19 d 279.57 d 545.50 f 747.50 f 466.50 m 391.50 m 215.50 l 31.50 l 9.50 f 440.93
2011 0.00 c 0.50 f 64.50 79.50 p 30.00 z 0.00 z 0.00 z 0.00 z 485.00 f 335.46 c 26.00 13.00 438.96
2012 10.00 4.83 b 101.00 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 115.83
Period of Record Statistics
MEAN 6.10 12.63 59.66 178.60 407.44 670.08 858.34 796.64 581.89 289.62 67.19 8.59 3964.98
S.D. 10.15 12.24 45.83 55.42 99.20 72.74 65.70 52.72 67.93 92.70 51.63 11.05 393.43
SKEW 2.56 1.49 1.56 0.48 0.34 -0.07 0.51 0.31 -0.46 -0.41 1.01 1.25 0.55
MAX 48.00 55.50 222.00 297.00 593.50 807.50 992.50 895.50 704.00 493.50 216.00 40.50 4851.50
MIN 0.00 0.00 5.00 69.50 240.00 534.00 739.50 714.00 423.50 43.92 4.00 0.00 3405.50
NO YRS 35 33 34 31 31 32 33 32 32 33 32 32 25