GRANGEVILLE 11 SE, IDAHO

Monthly Total Heating Degree Days

(103780)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 198901
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
1964 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 1119.00 1119.00
1965 1027.00 804.00 864.56 d 520.50 417.00 163.50 29.00 55.00 346.50 378.00 720.52 a 1005.95 a 6331.52
1966 983.50 874.50 780.50 521.00 281.00 179.00 27.00 22.98 b 94.50 526.50 739.00 943.50 5972.98
1967 905.00 755.00 800.50 641.50 341.50 114.00 1.50 5.50 56.00 484.50 741.50 1069.50 c 5916.00
1968 1068.50 736.50 629.50 596.90 a 362.50 134.50 26.50 78.50 219.00 528.66 c 774.00 1131.50 6286.56
1969 1194.50 920.00 785.00 451.00 235.50 111.00 32.50 29.50 156.50 626.50 787.20 e 1011.00 6340.20
1970 1021.50 708.50 783.00 651.00 349.00 122.00 23.50 3.00 347.00 570.92 a 843.00 1102.57 a 6524.98
1971 1054.50 824.00 809.10 a 567.00 293.00 191.00 57.50 12.00 327.50 606.10 b 846.21 a 1094.50 6682.41
1972 1111.72 b 852.00 643.00 643.50 306.50 116.00 39.00 14.00 275.50 504.50 800.50 1222.00 6528.22
1973 1109.00 795.41 a 0.00 z 546.00 299.00 143.79 a 11.37 a 29.50 194.00 498.00 832.00 890.50 5348.57
1974 1126.33 a 727.44 c 734.50 527.00 422.50 81.50 34.50 29.00 116.50 426.00 721.50 977.00 5923.77
1975 1072.00 877.50 789.00 662.50 417.50 205.18 b 12.50 55.00 168.50 492.50 822.00 989.00 6563.18
1976 994.00 839.00 797.50 543.00 285.00 239.50 25.50 57.00 122.50 499.50 759.00 1081.00 6242.50
1977 1196.00 728.50 814.00 407.00 421.00 48.50 35.00 55.50 238.00 526.50 883.50 617.50 j 5353.50
1978 0.00 z 313.00 p 587.50 528.50 422.00 134.50 38.50 86.00 264.31 a 495.00 956.50 1267.90 a 4780.71
1979 1445.50 879.00 726.50 562.50 318.00 127.00 28.00 7.00 114.50 427.00 918.00 929.00 6482.00
1980 1139.00 786.00 784.00 394.00 313.00 186.50 24.05 b 88.50 148.50 482.50 760.50 947.00 6053.55
1981 936.72 a 786.50 654.50 457.50 354.00 183.50 39.00 5.68 a 185.89 b 573.50 741.00 951.00 5868.79
1982 1094.50 956.00 736.00 606.00 399.00 109.50 60.00 12.92 a 236.38 a 541.00 895.50 1077.00 6723.80
1983 928.00 684.00 617.00 557.00 320.00 127.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1030.50 g 3233.50
1984 809.00 i 0.00 z 0.00 z 0.00 z 0.00 z 55.00 o 32.00 21.81 d 301.00 643.50 824.50 1257.50 3080.31
1985 1242.50 1014.00 845.50 473.28 a 301.98 b 118.50 1.00 92.00 382.50 618.00 1109.00 0.00 z 6198.26
1986 1090.50 828.50 604.50 563.50 364.50 74.50 89.50 12.50 321.50 518.98 b 876.00 1129.00 6473.48
1987 1222.00 0.00 z 0.00 z 371.00 227.00 134.00 68.00 64.00 135.00 462.50 815.00 1071.50 4570.00
1988 1197.50 808.50 738.00 455.50 372.00 149.00 51.50 44.50 233.00 349.00 799.50 1190.50 6388.50
1989 1113.50 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 1113.50
Period of Record Statistics
MEAN 1098.84 818.33 739.22 532.46 340.11 138.87 34.21 38.32 216.72 512.14 824.58 1066.25 6311.91
S.D. 120.48 83.56 83.55 83.03 58.85 44.34 20.69 29.31 92.29 74.97 89.28 107.64 275.59
SKEW 0.77 0.50 -0.51 -0.26 -0.10 0.24 0.76 0.50 0.13 -0.22 1.44 0.27 -0.30
MAX 1445.50 1014.00 864.56 662.50 422.50 239.50 89.50 92.00 382.50 643.50 1109.00 1267.90 6723.80
MIN 905.00 684.00 587.50 371.00 227.00 48.50 1.00 3.00 56.00 349.00 720.52 890.50 5868.79
NO YRS 23 21 21 23 23 23 23 23 23 23 23 22 17