IDAHO SPRINGS, COLORADO

Monthly Total Growing Degree Days

(054234)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 197406
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
1893 13.12 e 0.00 35.50 47.50 209.77 a 588.62 a 0.00 z 0.00 z 0.00 z 147.50 j 17.40 e 2.00 913.90
1894 6.50 j 0.00 c 27.79 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 27.79
1895 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
1896 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
1897 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
1898 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
1899 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
1900 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
1901 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
1902 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
1903 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
1904 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
1905 0.00 z 5.50 25.50 90.50 265.00 619.50 740.50 775.50 534.50 137.43 a 42.50 2.00 3238.43
1906 9.00 10.89 a 19.93 c 131.50 363.50 501.50 621.00 645.00 431.00 217.50 68.50 33.50 3052.82
1907 3.50 33.00 110.00 117.00 165.00 483.50 717.50 683.55 a 458.50 244.50 32.00 0.00 3048.05
1908 0.00 3.50 80.00 152.00 226.50 504.00 709.00 664.50 540.50 163.00 43.50 1.00 3087.50
1909 20.00 0.00 3.50 61.00 183.00 558.50 758.00 745.00 436.50 268.00 117.50 2.50 3153.50
1910 12.00 6.50 115.00 164.00 292.00 593.00 799.50 728.00 527.00 292.00 81.50 5.50 3616.00
1911 22.50 1.04 a 47.53 a 111.43 b 375.88 c 617.00 664.00 682.52 a 537.60 e 211.83 d 1.00 q 0.55 c 3271.88
1912 5.54 c 0.00 c 0.50 g 69.64 b 299.50 469.00 656.17 a 691.30 a 311.50 167.40 a 46.50 0.00 a 2716.55
1913 0.00 a 4.15 a 31.00 145.86 a 355.98 a 546.00 728.00 772.00 371.38 a 133.82 a 52.00 0.00 3140.19
1914 4.50 3.11 a 23.50 96.72 a 331.00 583.97 a 716.00 711.45 a 525.00 205.50 86.50 0.00 3287.25
1915 0.00 a 9.00 0.50 144.50 233.03 b 461.79 b 681.50 584.00 434.46 b 236.38 c 62.59 a 12.73 c 2860.48
1916 2.00 7.50 101.78 a 122.50 273.50 0.00 z 750.41 b 629.62 b 422.59 a 141.50 33.10 a 0.50 2485.01
1917 0.00 1.56 a 13.95 a 52.50 124.53 b 513.21 b 734.38 b 621.07 b 511.50 229.00 67.00 40.50 2909.20
1918 22.50 19.00 70.78 a 39.31 a 308.50 688.50 716.00 715.00 432.93 a 280.50 35.00 0.00 h 3328.02
1919 4.50 0.00 19.24 b 144.50 339.50 589.00 821.00 766.00 543.00 103.00 30.50 4.50 3364.74
1920 26.00 5.50 11.88 a 32.00 318.00 524.50 743.00 595.00 393.00 174.50 17.00 1.00 2841.38
1921 5.50 17.00 76.43 b 69.50 283.00 492.00 642.50 599.50 475.00 269.00 33.00 19.00 2981.43
1922 0.00 0.50 5.00 32.50 274.50 579.00 633.50 640.50 434.50 149.00 0.00 1.50 2750.50
1923 6.00 0.00 0.00 44.50 126.50 i 452.59 a 652.07 b 537.00 332.00 46.00 7.50 2.50 2080.16
1924 0.00 6.00 0.00 57.50 149.50 531.50 642.50 699.00 364.00 120.00 41.50 9.00 2620.50
1925 0.00 8.50 31.00 118.50 308.50 449.00 628.50 549.50 383.00 81.12 a 2.50 0.00 2560.12
1926 0.00 0.00 3.50 78.00 292.00 467.00 536.00 617.50 407.00 212.50 17.50 3.50 2634.50
1927 7.00 0.00 0.50 90.50 329.00 473.00 610.70 a 477.92 a 371.50 142.50 63.00 0.00 2565.62
1928 7.50 0.00 12.50 74.00 290.50 414.00 624.00 618.50 440.50 167.00 23.50 0.00 2672.00
1929 0.00 0.00 18.00 48.00 226.50 527.50 634.50 638.50 340.00 160.50 1.50 0.00 2595.00
1930 0.00 11.00 1.50 157.50 208.00 545.00 678.50 608.00 413.00 117.50 11.00 0.00 2751.00
1931 0.00 0.00 8.50 88.00 226.00 576.00 745.00 652.00 537.50 206.50 46.50 2.50 3088.50
1932 0.00 21.00 8.50 123.50 293.50 485.00 654.00 667.00 420.50 157.50 22.50 0.00 2853.00
1933 0.00 j 0.00 22.00 51.50 189.00 595.50 745.50 614.00 510.50 189.50 34.50 28.93 a 2980.93
1934 0.00 6.00 46.50 147.50 419.50 556.50 775.00 a 654.00 398.00 246.50 60.00 0.00 3309.50
1935 2.50 10.00 29.00 69.50 88.50 475.00 664.50 708.50 440.00 179.80 a 3.50 0.00 2670.80
1936 0.00 6.50 9.50 125.00 311.00 539.00 704.00 654.00 457.50 134.50 7.50 0.00 a 2948.50
1937 0.00 a 0.50 0.00 74.00 264.50 427.50 619.48 a 702.00 406.00 0.00 z 37.50 d 21.00 2552.48
1938 3.00 8.00 40.00 157.50 281.00 562.00 710.50 777.07 a 491.00 274.35 a 9.31 a 5.00 3318.73
1939 1.50 0.00 44.50 112.00 h 381.00 546.50 829.00 708.50 574.50 232.50 37.00 81.00 3436.00
1940 1.00 19.68 a 45.50 107.50 341.50 621.00 758.00 690.00 495.00 271.00 26.50 22.73 a 3399.41
1941 0.00 z 4.00 10.16 b 0.00 z 0.00 z 0.00 z 0.00 z 659.86 c 299.50 h 184.97 a 67.50 25.66 b 952.13
1942 0.00 z 0.00 z 0.00 114.50 261.50 495.50 732.50 736.85 e 422.00 195.00 75.52 a 21.00 3054.36
1943 23.00 9.00 48.50 227.50 238.00 537.00 751.50 721.00 450.00 203.50 40.00 0.00 3249.00
1944 0.50 8.00 4.00 18.50 290.50 519.50 674.50 741.00 463.00 200.00 22.50 0.00 2942.00
1945 9.00 9.50 13.50 80.00 284.00 391.50 678.50 656.00 375.50 232.00 51.50 0.00 2781.00
1946 0.00 3.00 52.00 241.50 186.50 546.50 720.50 671.00 458.00 127.50 4.66 a 14.50 3025.66
1947 1.00 2.50 6.00 66.50 312.50 421.50 686.50 661.00 491.00 263.50 9.50 0.00 2921.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 653.00 474.50 123.00 7.50 0.00 1258.00
1949 0.00 5.00 19.50 190.00 292.50 487.00 653.00 609.00 428.50 136.50 109.50 4.50 2935.00
1950 16.50 11.50 30.00 112.50 217.50 502.50 598.00 541.00 358.45 a 348.50 48.50 12.00 2796.95
1951 5.00 20.50 6.50 69.00 254.50 367.00 690.00 576.50 379.00 88.00 3.00 2.00 2461.00
1952 0.00 1.00 0.00 82.00 294.50 650.50 691.00 676.50 515.50 245.00 16.00 0.00 3172.00
1953 20.00 8.50 36.50 72.50 205.00 554.00 741.50 640.50 520.00 231.50 56.00 0.00 a 3086.00
1954 10.00 53.00 20.50 208.45 a 339.50 569.50 781.00 663.00 469.50 299.00 44.00 2.00 3459.45
1955 1.50 0.00 10.00 129.00 293.00 441.50 707.00 683.50 422.50 203.50 28.00 25.50 2945.00
1956 4.00 0.00 29.00 0.00 z 0.00 z 0.00 z 511.00 i 637.50 528.00 236.50 40.86 a 1.00 1476.86
1957 2.00 25.50 21.00 49.50 203.00 516.50 776.50 722.50 425.00 218.07 b 8.50 6.50 2974.57
1958 0.00 24.50 4.81 b 60.52 a 0.00 z 586.50 669.08 a 724.50 460.34 a 246.45 a 42.00 20.00 2838.71
1959 11.00 1.00 11.50 189.00 271.00 630.00 687.00 679.00 361.61 b 120.50 28.45 a 3.00 2993.06
1960 0.00 0.00 35.50 143.50 248.52 a 533.00 658.23 a 618.89 c 429.50 201.00 40.50 5.17 a 2913.81
1961 8.27 a 17.50 11.50 102.00 305.00 513.00 658.00 639.00 261.50 162.50 1.61 b 0.00 2679.87
1962 0.00 27.50 12.00 153.00 234.00 f 447.78 c 621.50 633.00 297.50 i 272.36 c 44.50 25.50 2237.14
1963 9.50 48.70 e 45.00 f 123.00 361.00 541.00 784.00 634.00 516.50 334.50 51.00 2.50 3405.70
1964 0.00 0.00 5.50 65.00 310.00 453.50 767.00 627.50 398.50 199.50 37.00 19.50 2883.00
1965 2.00 9.50 6.50 105.00 258.50 456.50 691.00 580.50 260.50 278.50 45.58 d 24.50 2718.58
1966 5.17 d 0.00 a 43.50 90.00 379.00 506.50 812.00 654.00 477.50 207.50 28.50 g 2.50 3177.67
1967 9.50 0.00 42.50 g 79.50 234.50 389.44 c 700.00 618.00 425.00 193.50 39.50 0.00 2688.94
1968 2.00 0.00 z 0.00 z 0.00 z 0.00 z 410.50 k 0.00 z 591.50 398.50 244.00 9.00 g 0.00 1236.00
1969 28.50 2.50 19.00 150.54 b 319.00 356.00 712.50 740.00 449.00 58.00 19.50 8.50 2863.04
1970 13.00 6.00 12.50 48.50 334.50 492.50 692.50 687.50 330.00 45.31 e 24.50 1.50 2688.31
1971 32.50 4.50 50.00 73.00 217.50 533.50 634.00 631.00 0.00 z 0.00 z 0.00 z 21.00 2197.00
1972 3.50 1.50 50.50 69.00 252.00 556.50 683.15 d 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1616.15
1973 7.75 c 0.00 c 1.15 d 0.00 z 192.89 d 511.03 a 237.50 q 655.00 0.00 z 0.00 z 140.50 0.00 z 1508.32
1974 63.00 70.00 159.50 179.00 518.50 665.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1655.50
Period of Record Statistics
MEAN 7.08 8.68 27.92 103.52 276.49 520.13 698.37 658.61 438.29 194.81 37.95 8.23 2948.28
S.D. 10.65 13.12 31.06 49.76 71.91 70.23 59.39 59.98 68.80 66.94 28.42 13.53 262.02
SKEW 2.77 2.63 2.01 0.67 0.21 -0.05 0.03 -0.24 -0.34 -0.15 1.22 2.84 0.41
MAX 63.00 70.00 159.50 241.50 518.50 688.50 829.00 777.07 574.50 348.50 140.50 81.00 3616.00
MIN 0.00 0.00 0.00 18.50 88.50 356.00 536.00 477.92 260.50 45.31 0.00 0.00 2461.00
NO YRS 66 69 67 65 64 66 64 68 64 65 65 67 47