RIGGINS, IDAHO

Monthly Total Growing Degree Days

(107706)

Base Temperature = 40 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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 20.50 85.50 263.50 456.00 784.00 947.40 e 1171.50 1168.50 854.50 506.50 60.00 80.00 6397.90
1941 37.31 d 130.50 326.00 472.00 694.00 805.00 1131.00 989.00 577.50 397.50 180.00 58.00 5797.81
1942 4.50 20.50 175.48 c 516.00 583.50 717.00 946.50 f 1191.00 0.00 z 498.30 d 123.50 17.50 3847.28
1943 1.00 84.50 165.50 501.50 512.00 644.48 a 1081.00 1009.50 857.50 496.50 128.00 23.00 5504.48
1944 16.00 35.50 112.00 375.00 672.18 a 787.00 1113.00 1048.00 862.00 677.00 120.50 11.00 5829.18
1945 19.63 a 72.69 b 144.00 279.83 a 568.50 710.00 1160.50 1144.50 743.00 563.54 c 130.50 47.00 5583.69
1946 15.00 65.50 257.62 b 442.00 652.00 530.00 i 1145.45 a 1116.00 552.50 g 286.46 d 57.00 e 73.00 4110.03
1947 14.50 82.00 291.50 390.00 749.68 a 696.00 1159.00 1086.50 787.76 a 491.72 b 55.50 45.50 5849.67
1948 29.00 78.94 b 106.00 337.50 560.50 860.50 971.00 1006.00 809.00 350.00 f 57.32 b 2.00 4817.77
1949 0.00 37.50 253.50 603.00 665.50 803.00 1089.50 1138.00 918.00 264.50 g 191.50 27.26 b 5726.76
1950 17.00 68.50 113.50 316.67 c 520.00 764.00 1083.50 1082.50 625.00 g 486.00 176.79 b 68.50 4696.95
1951 19.00 63.26 a 100.50 440.50 600.50 727.00 1191.00 1112.00 853.00 378.20 a 72.00 10.50 5567.46
1952 0.50 21.00 47.61 c 489.00 434.50 h 759.50 1095.50 1128.50 916.55 a 643.50 47.50 k 29.40 b 5131.06
1953 169.43 b 100.69 b 221.65 a 363.00 500.28 b 670.56 c 1164.50 1084.50 920.50 363.00 j 129.50 n 1.00 z 5195.10
1954 84.73 a 155.00 127.10 a 400.86 a 695.36 b 702.00 e 1095.50 972.00 757.24 a 328.50 h 0.00 z 0.00 z 4989.80
1955 0.00 d 9.13 e 73.92 e 195.60 e 508.73 c 817.00 977.00 1114.50 802.76 a 523.56 d 54.50 f 33.30 d 5055.50
1956 35.43 c 23.50 195.09 b 0.00 z 629.50 754.29 b 1094.00 816.00 g 619.50 f 376.81 b 79.00 18.00 3205.61
1957 2.00 55.50 153.50 263.57 b 647.50 847.50 1086.00 1020.50 864.23 d 457.77 a 54.31 a 24.28 a 5476.66
1958 10.16 b 148.81 a 118.00 k 284.50 857.00 0.00 z 1090.00 1182.50 763.27 d 555.93 a 171.11 c 74.00 5137.28
1959 33.30 d 25.50 f 195.30 a 0.00 z 452.50 887.00 1135.50 1033.50 686.50 428.66 b 67.00 m 27.50 4879.75
1960 0.00 z 17.52 e 102.50 x 368.40 e 547.15 a 900.00 1270.00 987.87 a 853.00 513.00 163.00 13.43 a 5633.37
1961 87.00 151.00 250.50 362.50 621.00 1002.00 1226.00 1313.50 678.62 a 408.00 107.50 41.00 6248.62
1962 16.03 b 31.50 l 73.50 k 371.50 i 530.50 835.00 1086.50 1087.00 875.00 459.50 211.00 65.50 5166.03
1963 12.00 184.00 256.86 c 278.50 g 681.00 829.14 a 1042.00 1124.00 985.50 636.00 226.00 7.50 5984.00
1964 14.00 24.00 125.50 310.50 564.50 777.50 1127.50 1013.00 733.50 538.00 155.50 57.00 5440.50
1965 24.00 94.00 136.50 424.50 568.50 786.50 1116.00 1065.00 619.00 624.50 247.50 62.50 5768.50
1966 32.50 54.50 223.50 449.50 812.00 782.00 1143.00 1150.50 928.50 396.00 f 174.50 48.00 5798.50
1967 53.50 67.50 153.45 a 241.50 627.00 822.00 1204.00 1279.00 1034.50 456.00 148.00 14.43 b 6100.88
1968 13.50 149.00 276.50 315.00 638.08 a 876.21 a 1112.50 970.50 712.22 c 429.50 124.50 41.33 a 5658.85
1969 6.09 c 26.00 204.08 a 443.00 693.76 b 872.50 1107.00 1183.00 810.50 289.00 128.50 35.00 5798.43
1970 68.00 141.50 143.00 252.00 625.00 923.50 1166.00 1179.50 595.00 347.00 162.00 13.50 5616.00
1971 55.50 69.00 165.50 363.00 621.50 703.00 1101.00 1283.50 668.00 427.00 75.00 13.00 5545.00
1972 37.50 108.50 324.00 263.00 704.00 872.50 1106.50 1164.50 662.00 439.00 106.00 40.00 5827.50
1973 15.00 88.50 214.00 360.00 712.00 878.00 1184.00 1089.50 754.00 432.50 105.00 68.50 5901.00
1974 52.50 86.50 196.50 388.00 528.00 961.50 1051.00 1031.00 809.50 455.50 146.00 25.50 5731.50
1975 1.50 25.00 58.00 150.00 475.85 a 700.50 1152.50 541.50 n 544.50 g 299.00 91.50 26.50 2980.35
1976 6.72 a 31.00 50.63 a 309.83 a 698.50 702.00 1095.00 954.00 838.50 455.00 185.50 12.00 5338.68
1977 2.00 117.00 115.50 537.00 542.50 965.00 1067.00 1133.00 714.50 403.50 105.00 36.00 5738.00
1978 15.50 74.00 347.00 351.50 513.50 814.50 1022.00 933.00 674.50 454.50 53.50 1.00 5254.50
1979 0.00 34.00 223.50 338.50 635.00 854.50 667.50 m 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2085.50
1980 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 65.50 h 91.81 e 91.81
1981 68.20 a 120.81 a 265.00 400.50 563.50 732.00 1028.17 a 1196.60 a 834.00 414.76 b 206.25 b 81.38 c 5911.17
1982 8.00 63.26 a 181.23 e 311.11 c 548.04 c 880.18 b 0.00 z 1121.00 790.80 e 377.00 117.00 m 17.00 l 4280.62
1983 52.00 164.00 280.00 365.50 444.00 o 0.00 z 647.50 l 1185.50 678.89 c 247.00 q 205.50 10.00 2941.39
1984 11.50 61.22 b 205.24 b 307.00 559.50 703.89 c 864.00 g 0.00 z 406.00 h 0.00 z 0.00 z 0.53 b 1848.89
1985 0.00 32.50 155.00 544.00 749.00 924.00 1316.00 992.50 596.00 409.00 75.00 3.50 5796.50
1986 40.50 119.00 357.00 379.50 667.50 1030.50 978.00 1214.00 595.50 460.50 137.00 6.50 5985.50
1987 6.50 79.50 238.00 587.00 753.00 907.50 984.50 969.00 829.00 490.00 150.50 68.00 6062.50
1988 19.00 83.00 194.50 476.00 631.76 b 856.50 1075.50 1066.00 751.00 658.50 120.50 17.00 5949.26
1989 13.00 35.50 214.00 485.50 582.00 827.00 1121.50 950.00 0.00 z 405.87 d 106.00 19.00 4759.37
1990 98.00 123.00 281.50 579.00 565.75 a 818.00 1185.50 1137.50 587.50 j 436.00 202.00 22.50 5448.75
1991 11.00 195.50 242.00 380.00 0.00 z 712.50 1066.00 1217.50 910.00 500.50 79.50 10.50 5325.00
1992 42.00 190.00 384.50 479.00 763.50 953.50 846.50 1065.00 717.50 548.50 93.00 4.00 6087.00
1993 4.00 18.00 260.00 318.50 732.00 714.00 765.50 902.50 720.00 483.00 47.00 25.00 4989.50
1994 31.00 24.00 218.00 429.50 630.50 740.00 1123.00 1099.00 552.50 i 383.50 36.00 19.00 4733.50
1995 37.50 137.50 155.00 309.00 553.00 692.50 963.50 904.50 824.50 313.50 126.50 26.50 5043.50
1996 12.00 93.73 a 183.00 369.00 469.50 750.00 1068.00 1043.50 631.00 413.50 91.50 23.50 5148.23
1997 25.50 25.00 208.50 293.00 649.00 740.50 928.00 1060.00 802.50 365.00 117.00 6.50 5220.50
1998 28.50 93.50 196.85 a 332.00 549.00 693.50 1138.50 1073.50 865.50 328.00 125.00 29.00 5452.85
1999 19.00 24.00 173.00 231.00 442.50 646.50 879.37 a 1018.00 673.97 a 431.00 253.00 17.00 4808.33
2000 9.50 94.77 a 230.78 d 542.14 b 642.70 c 822.78 c 1104.00 1122.50 728.28 a 260.00 j 36.50 4.13 a 5338.07
2001 3.00 34.50 281.50 327.41 a 717.65 a 777.50 1100.50 1183.50 965.50 476.00 230.50 12.40 a 6109.96
2002 35.00 59.50 154.00 378.00 602.00 847.50 1211.50 1028.50 851.00 386.00 176.00 55.00 5784.00
2003 77.50 58.00 251.62 a 374.00 593.50 912.50 1252.00 1192.50 852.50 614.32 a 66.72 a 49.50 6294.66
2004 12.50 51.56 b 361.31 b 477.78 c 462.00 f 861.00 1144.00 1108.25 c 693.10 a 434.60 e 94.50 47.50 5286.09
2005 56.00 58.07 a 233.00 333.50 607.50 711.96 b 1137.59 c 1091.00 699.50 455.50 64.00 22.00 5469.63
2006 49.50 57.50 147.00 356.50 675.50 875.36 b 772.00 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2161.36
Period of Record Statistics
MEAN 27.88 77.78 203.80 382.58 620.01 807.75 1097.18 1090.34 780.54 457.48 126.53 31.66 5686.52
S.D. 29.63 47.63 76.88 97.50 90.65 92.32 96.74 92.53 107.43 91.06 56.85 23.61 367.58
SKEW 2.19 0.68 0.15 0.23 0.28 0.27 -0.93 0.09 0.06 0.47 0.37 0.75 -0.34
MAX 169.43 195.50 384.50 603.00 857.00 1030.50 1316.00 1313.50 1034.50 677.00 253.00 91.81 6397.90
MIN 0.00 9.13 47.61 150.00 442.50 644.48 765.50 902.50 577.50 286.46 36.00 0.53 4808.33
NO YRS 65 64 63 62 62 63 60 61 55 56 57 62 38