BOISE WSFO AIRPORT, IDAHO

Monthly Total Growing Degree Days

(101022)

Base Temperature = 50 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
1940 0.00 5.00 21.00 62.50 352.50 587.50 771.50 749.50 400.50 162.50 0.50 0.00 3113.00
1941 0.00 1.00 24.00 78.00 271.00 391.50 789.00 648.00 238.00 84.00 11.00 4.00 2539.50
1942 0.00 0.00 7.50 116.50 144.00 323.00 795.50 710.00 397.00 151.00 3.00 0.00 2647.50
1943 0.00 0.00 23.50 152.50 175.00 353.00 722.00 648.00 498.50 213.00 1.00 0.00 2786.50
1944 0.00 0.00 0.00 66.50 280.00 327.50 690.00 641.50 412.00 247.00 2.00 0.00 2666.50
1945 0.00 0.00 3.50 55.00 216.00 334.00 771.00 726.00 306.50 226.00 6.00 0.00 2644.00
1946 0.00 0.00 21.50 126.50 239.50 461.00 771.50 721.00 332.00 22.00 0.00 0.00 2695.00
1947 0.00 0.00 19.50 70.00 380.50 352.50 777.50 688.50 390.50 195.00 8.00 0.00 2882.00
1948 0.00 0.00 0.00 61.00 233.00 496.00 630.50 632.00 366.50 141.50 1.50 0.00 2562.00
1949 0.00 0.00 7.50 149.00 366.00 470.00 756.50 733.00 469.00 31.00 13.00 0.00 2995.00
1950 0.00 1.00 4.50 37.00 181.00 414.50 721.00 702.00 415.00 230.50 8.50 0.00 2715.00
1951 0.00 3.00 0.00 75.50 227.50 369.50 796.00 689.00 409.00 87.50 0.00 0.00 2657.00
1952 0.00 0.00 0.00 135.00 239.50 424.50 729.00 708.50 460.00 222.00 0.00 0.00 2918.50
1953 6.50 0.00 9.00 65.00 116.00 280.00 745.50 667.00 478.50 144.00 23.00 0.00 2534.50
1954 0.00 1.00 9.50 75.00 327.00 347.00 785.00 565.00 360.50 112.50 11.00 0.00 2593.50
1955 0.00 0.00 0.00 17.00 153.00 498.50 659.00 762.50 378.00 168.00 1.00 0.50 2637.50
1956 0.00 0.00 32.00 103.50 310.50 436.50 779.00 610.50 424.00 127.50 0.00 0.00 2823.50
1957 0.00 0.00 1.50 46.50 253.50 480.00 717.50 641.50 459.00 64.50 0.00 0.00 2664.00
1958 0.00 11.00 1.00 47.00 452.00 480.50 745.00 801.50 369.50 196.00 16.50 0.00 3120.00
1959 0.00 0.00 2.00 96.00 120.00 558.00 805.50 620.50 305.00 73.00 0.00 0.00 2580.00
1960 0.00 0.00 29.00 77.00 169.50 566.00 950.50 588.50 479.00 144.00 7.50 0.00 3011.00
1961 0.00 9.50 19.50 62.00 267.50 685.00 813.50 862.00 234.00 93.50 0.00 0.00 3046.50
1962 0.00 0.00 5.00 125.50 198.50 467.00 688.50 641.50 456.50 114.00 4.50 0.00 2701.00
1963 0.00 8.00 41.00 68.00 338.00 419.00 687.00 726.50 627.50 288.50 14.00 0.00 3217.50
1964 0.00 0.00 9.00 32.50 211.50 374.50 770.50 594.00 286.50 126.00 8.00 6.00 2418.50
1965 0.00 0.00 4.50 92.50 205.00 439.00 722.50 655.00 243.50 217.50 23.00 0.00 2602.50
1966 0.00 0.00 34.00 74.50 363.00 449.00 720.00 683.50 486.00 82.50 22.00 0.00 2914.50
1967 0.00 0.00 10.50 0.50 235.00 481.00 881.50 869.00 558.50 82.50 10.00 0.00 3128.50
1968 0.00 2.00 19.50 58.00 259.00 534.50 846.50 580.50 399.00 109.50 0.00 3.50 2812.00
1969 2.00 0.00 18.50 90.00 357.00 487.00 711.00 695.50 425.00 26.00 9.50 0.00 2821.50
1970 1.00 3.50 0.00 18.50 262.50 566.00 814.50 798.00 260.50 65.00 7.00 0.00 2796.50
1971 0.00 0.00 6.00 54.00 324.50 445.00 765.50 886.00 289.00 128.50 4.00 0.00 2902.50
1972 0.00 0.00 36.50 47.00 333.50 527.00 728.00 759.50 280.00 133.50 2.00 0.00 2847.00
1973 0.00 0.00 1.50 59.00 328.00 528.00 792.00 712.00 392.50 138.50 19.50 0.00 2971.00
1974 2.00 0.50 7.00 74.50 206.00 651.50 737.00 673.00 460.00 117.50 8.50 0.00 2937.50
1975 0.00 0.00 0.50 9.00 218.50 430.50 878.00 620.00 465.50 157.00 26.00 0.00 2805.00
1976 0.00 1.50 4.00 41.50 286.00 377.50 716.00 549.00 422.00 97.00 6.00 0.00 2500.50
1977 0.00 0.00 2.50 189.00 136.50 605.50 704.50 730.00 363.50 126.50 1.00 0.00 2859.00
1978 0.00 0.00 75.50 36.00 159.00 433.50 708.00 616.00 352.50 151.00 1.00 0.00 2532.50
1979 0.00 0.00 0.00 65.00 258.50 501.50 746.50 655.50 519.50 181.50 0.00 0.00 2928.00
1980 0.00 4.00 0.00 150.00 241.00 379.50 709.00 533.00 376.00 143.00 19.50 1.50 2556.50
1981 0.00 0.00 3.50 106.50 170.50 397.00 649.50 748.50 412.50 52.00 13.50 0.00 2553.50
1982 0.00 0.00 0.50 37.50 178.00 473.00 624.50 702.00 320.00 107.00 0.00 0.00 2442.50
1983 0.00 0.50 18.00 45.50 239.50 411.50 600.00 772.50 328.50 134.00 36.00 0.00 2586.00
1984 0.00 0.00 1.50 37.00 194.50 352.50 749.50 789.00 326.50 106.00 3.00 0.00 2559.50
1985 0.00 0.00 0.00 146.00 284.00 515.00 859.00 595.00 195.50 72.50 5.50 0.00 2672.50
1986 0.00 12.50 45.00 53.00 318.50 661.00 607.50 803.00 236.00 109.50 1.00 0.00 2847.00
1987 0.00 0.00 24.50 231.50 383.50 604.50 657.00 620.00 468.50 168.50 5.50 2.00 3165.50
1988 0.00 3.00 20.00 134.50 276.50 621.00 763.00 667.00 354.50 314.00 16.50 0.00 3170.00
1989 0.00 0.00 16.50 143.50 206.00 552.50 835.00 618.50 399.00 123.00 5.00 0.00 2899.00
1990 0.00 0.00 20.00 181.00 198.50 506.50 810.50 742.50 596.50 122.00 8.00 0.00 3185.50
1991 0.00 0.00 11.00 56.00 164.50 379.00 796.50 823.50 472.00 183.50 0.00 0.00 2886.00
1992 0.00 5.00 48.50 182.50 441.00 594.00 661.50 740.00 404.00 161.00 0.00 0.00 3237.50
1993 0.00 0.00 11.00 28.50 414.00 356.50 465.50 575.50 394.00 144.50 3.50 0.50 2393.50
1994 0.00 0.00 41.00 126.50 347.00 535.50 835.00 809.00 504.00 84.00 0.00 0.00 3282.00
1995 0.00 8.50 16.50 49.00 221.00 416.50 724.00 656.50 471.50 62.00 8.00 4.00 2637.50
1996 0.00 0.00 10.50 71.50 184.00 499.50 829.00 766.50 353.00 205.50 8.50 4.50 2932.50
1997 1.50 0.00 43.00 68.50 411.00 479.00 704.50 791.50 531.00 115.50 9.00 0.00 3154.50
1998 0.00 2.50 27.50 98.50 206.50 400.00 905.50 828.00 592.50 109.00 8.00 0.00 3178.00
1999 0.00 0.00 23.50 56.00 240.00 490.00 733.50 778.50 427.50 168.50 54.00 0.00 2971.50
2000 0.00 1.50 6.00 142.00 314.50 557.50 807.50 802.00 392.00 116.00 0.00 0.00 3139.00
2001 0.00 0.00 29.50 102.50 367.00 519.50 754.00 889.50 551.00 142.00 23.50 0.00 3378.50
2002 0.00 0.00 10.00 73.50 300.00 591.50 918.50 648.00 455.00 85.00 4.00 2.50 3088.00
2003 3.00 0.00 50.00 73.50 296.50 589.50 946.50 847.50 501.50 296.00 3.00 1.50 3608.50
2004 0.00 0.00 58.50 135.00 269.50 578.50 867.00 771.00 409.50 172.50 0.00 0.50 3262.00
2005 0.00 0.00 12.00 80.00 292.50 431.00 877.00 829.00 404.00 137.00 7.00 0.00 3069.50
2006 0.00 0.00 9.00 106.00 347.50 629.50 976.00 743.50 462.00 108.00 36.00 0.00 3417.50
2007 0.00 0.00 60.50 114.00 394.50 616.00 1025.00 790.50 444.00 96.50 9.00 3.50 3553.50
2008 0.00 0.00 0.00 53.50 330.50 513.00 857.00 803.50 481.50 169.00 20.00 0.00 3228.00
2009 0.00 1.00 17.50 82.50 367.00 534.00 884.00 779.50 619.00 67.00 3.50 0.00 3355.00
2010 0.00 0.00 10.50 89.50 159.00 488.50 799.00 740.00 528.00 237.00 33.50 0.00 3085.00
2011 0.00 5.00 12.00 18.00 190.50 427.50 792.50 880.50 641.00 181.00 1.50 0.00 3149.50
2012 0.00 0.00 44.00 184.00 284.00 519.50 969.50 883.50 558.50 173.00 50.50 11.00 3677.50
2013 0.00 0.00 39.50 6.50 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 39.50
Period of Record Statistics
MEAN 0.22 1.22 16.93 84.47 265.58 479.08 771.67 716.83 417.53 138.95 9.25 0.62 2902.05
S.D. 0.90 2.70 17.14 47.53 81.45 92.07 95.79 90.21 98.41 60.92 11.50 1.75 298.04
SKEW 5.37 2.61 1.22 0.79 0.25 0.10 0.05 0.05 0.04 0.63 1.96 3.78 0.44
MAX 6.50 12.50 75.50 231.50 452.00 685.00 1025.00 889.50 641.00 314.00 54.00 11.00 3677.50
MIN 0.00 0.00 0.00 0.50 116.00 280.00 465.50 533.00 195.50 22.00 0.00 0.00 2393.50
NO YRS 74 74 74 73 73 73 73 73 73 73 73 73 73