CARLYLE 12 NW, MONTANA

Monthly Total Growing Degree Days

(241518)

Base Temperature = 40 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200602
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
1962 0.00 z 0.00 z 0.00 z 212.00 n 377.34 b 704.44 c 818.40 a 875.48 b 511.55 a 326.61 c 49.66 a 18.60 a 3682.09
1963 0.00 12.92 b 88.19 b 113.00 g 395.25 a 708.75 b 955.50 945.50 713.00 468.74 b 48.00 3.10 a 4338.95
1964 2.00 0.00 13.43 a 178.00 476.88 a 710.69 a 1022.48 a 783.55 b 398.00 271.25 a 44.44 c 0.00 3900.74
1965 0.00 1.00 0.00 98.00 359.17 b 660.56 c 895.38 a 862.50 240.54 b 373.00 25.00 8.55 b 3523.70
1966 0.00 a 0.00 c 95.14 b 70.34 a 482.16 c 702.93 a 1045.98 b 817.00 659.00 255.75 c 8.28 a 0.00 d 4136.58
1967 0.00 4.00 52.46 e 101.11 c 423.87 e 607.50 b 907.55 b 947.10 b 683.04 b 223.20 a 29.44 c 0.00 c 3979.27
1968 7.00 0.00 a 79.50 134.48 a 217.00 h 585.54 b 857.50 751.23 a 556.61 b 171.50 g 12.69 d 0.00 2984.55
1969 0.00 0.00 e 6.00 241.03 a 431.00 443.50 f 812.95 b 993.60 b 621.96 b 91.45 a 45.00 a 0.00 b 3243.00
1970 0.00 0.00 d 0.00 b 66.00 408.88 b 745.00 970.50 913.50 493.50 70.50 o 1.61 b 0.00 b 3598.99
1971 0.00 0.00 b 8.78 a 135.00 b 356.50 c 699.11 b 786.76 b 1035.40 a 455.50 193.50 30.52 a 0.00 3701.07
1972 0.00 0.00 43.18 c 92.68 b 426.00 680.36 b 732.50 873.68 a 281.50 m 165.69 b 10.00 6.50 3030.59
1973 5.00 5.50 20.50 95.00 390.00 661.00 847.00 982.50 461.00 297.00 22.50 2.50 3789.50
1974 15.00 2.50 23.50 164.00 269.00 686.00 990.00 707.50 460.50 307.00 23.00 0.00 3648.00
1975 0.00 b 0.00 6.00 83.00 349.50 612.00 974.50 796.50 472.50 217.50 100.00 2.50 3614.00
1976 0.00 4.50 30.50 196.50 471.50 688.50 938.00 931.50 652.50 191.00 29.00 5.00 4138.50
1977 0.00 3.00 19.00 303.00 622.00 798.00 953.77 a 704.00 460.00 230.00 19.50 0.00 4112.27
1978 0.00 0.00 58.00 103.00 427.00 644.00 828.50 836.50 623.50 162.00 f 70.00 0.00 3590.50
1979 0.00 0.00 0.00 b 68.28 a 318.00 689.00 917.00 840.50 678.50 310.00 31.50 17.05 a 3869.83
1980 0.00 4.00 2.00 288.50 578.50 752.50 997.00 719.50 518.00 246.00 73.00 12.50 4191.50
1981 9.00 23.50 16.50 247.00 399.50 599.00 951.50 921.50 625.00 219.07 a 93.60 e 2.00 4107.17
1982 0.00 9.50 11.50 149.50 326.00 580.00 881.50 887.50 518.00 202.50 12.00 0.50 3578.50
1983 0.00 15.00 14.00 112.50 316.50 634.00 994.00 1103.00 509.00 250.50 71.50 0.00 4020.00
1984 0.00 7.00 17.50 130.00 389.00 682.50 986.50 1011.50 388.00 220.00 32.50 0.00 3864.50
1985 0.00 0.00 22.00 252.50 577.00 566.50 1021.50 746.50 406.00 190.50 20.00 0.00 3802.50
1986 0.00 4.50 110.50 152.00 426.00 800.50 874.50 883.00 388.00 282.00 16.00 0.00 3937.00
1987 4.00 11.50 58.00 340.50 593.50 805.50 919.50 739.50 582.50 209.00 67.76 a 22.00 4353.26
1988 4.00 8.50 58.00 205.50 618.00 1077.50 1045.50 940.00 534.00 254.00 43.00 7.00 4795.00
1989 0.00 0.00 41.00 172.50 449.50 654.00 1050.00 932.00 595.50 262.50 38.00 7.50 4202.50
1990 0.00 0.00 43.50 218.00 401.00 740.50 915.50 975.50 721.50 251.00 69.00 12.00 4347.50
1991 0.00 16.50 41.50 195.00 486.00 722.50 934.50 1010.50 558.00 255.50 14.50 1.00 4235.50
1992 23.50 43.00 62.00 201.00 510.50 687.00 680.00 741.00 552.50 273.00 0.00 0.00 3773.50
1993 0.00 0.00 72.50 123.50 462.50 551.00 656.50 721.00 406.00 215.00 8.50 4.00 3220.50
1994 1.50 0.00 61.50 187.00 529.50 691.50 864.00 0.00 z 681.00 245.50 11.50 14.00 3287.00
1995 14.00 40.00 91.50 45.50 315.50 705.00 915.00 1020.50 561.50 216.00 42.50 2.50 3969.50
1996 7.00 22.50 22.00 148.00 295.00 741.50 866.00 981.50 508.00 239.50 10.50 0.00 3841.50
1997 2.00 4.50 76.50 140.50 383.50 812.00 872.00 898.00 676.00 290.50 34.50 8.50 4198.50
1998 4.00 2.00 19.50 213.50 491.50 528.00 986.50 1015.50 787.50 211.50 31.50 18.50 4309.50
1999 0.00 a 6.50 73.50 166.50 406.50 646.00 903.00 930.50 401.00 260.50 178.50 7.00 3979.50
2000 0.00 35.50 62.50 187.00 492.50 631.00 1024.50 1006.98 a 0.00 z 291.50 0.00 0.00 3731.48
2001 0.00 0.00 5.00 189.00 497.50 654.00 963.50 1029.50 623.50 199.50 174.00 0.00 4335.50
2002 13.00 8.50 1.50 126.50 328.00 741.00 1084.00 848.50 609.00 84.00 63.50 5.50 3913.00
2003 7.00 1.50 66.00 270.00 425.50 612.50 1012.00 1090.50 544.00 380.50 9.00 0.00 4418.50
2004 0.00 0.00 89.00 213.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 37.00 u 40.50 0.00 b 342.50
2005 6.50 15.50 58.00 204.50 326.00 0.00 z 924.50 0.00 z 643.00 228.50 37.50 2.50 2446.50
2006 6.50 0.00 0.00 z 250.50 480.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 737.50
Period of Record Statistics
MEAN 2.98 7.11 40.49 168.81 429.98 687.78 920.40 896.37 548.24 247.49 40.75 4.34 3994.18
S.D. 5.17 10.84 31.55 69.11 88.49 92.93 95.67 111.22 114.40 68.95 38.62 6.07 310.62
SKEW 2.14 1.99 0.38 0.35 0.40 1.67 -0.80 -0.18 -0.26 0.54 2.03 1.44 0.00
MAX 23.50 43.00 110.50 340.50 622.00 1077.50 1084.00 1103.00 787.50 468.74 178.50 22.00 4795.00
MIN 0.00 0.00 0.00 45.50 269.00 528.00 656.50 704.00 240.54 84.00 0.00 0.00 3220.50
NO YRS 44 44 43 43 43 41 43 41 41 40 44 44 33