IDAHO CITY, IDAHO

Monthly Total Growing Degree Days

(104442)

Base Temperature = 50 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
1931 0.00 0.00 0.00 6.00 163.50 357.50 615.50 552.50 224.00 32.50 1.00 0.00 1952.50
1932 0.00 0.00 0.00 9.00 111.00 321.50 483.00 405.00 254.50 49.00 0.00 0.00 1633.00
1933 0.00 0.00 0.00 10.50 56.00 376.50 594.00 481.00 180.00 95.00 0.00 0.00 1793.00
1934 0.00 0.00 6.00 107.50 266.50 294.50 618.00 571.00 209.00 74.00 3.50 0.00 2150.00
1935 0.00 0.00 0.00 5.50 67.00 247.50 520.00 440.00 302.00 83.50 0.00 0.00 1665.50
1936 0.00 0.00 0.00 56.00 245.00 362.50 639.50 539.50 201.00 63.50 0.00 0.00 2107.00
1937 0.00 0.00 0.00 6.00 111.50 232.50 577.00 436.50 317.00 43.50 0.00 0.00 1724.00
1938 0.00 0.00 0.00 24.50 94.50 301.00 506.00 459.83 a 391.00 42.00 0.00 0.00 1818.83
1939 0.00 0.00 0.00 48.00 206.00 216.50 583.50 574.00 255.50 34.00 0.00 0.00 1917.50
1940 0.00 0.00 2.50 25.50 213.00 421.50 572.50 561.00 292.50 52.50 0.00 0.00 2141.00
1941 0.00 b 0.00 3.00 13.50 146.00 251.00 551.50 465.50 105.00 17.00 0.00 0.00 1552.50
1942 0.00 0.00 0.00 28.50 88.00 192.50 561.32 c 504.02 b 245.50 52.00 1.50 0.00 1673.34
1943 0.00 k 0.00 d 0.00 41.50 105.00 199.50 499.00 433.00 295.50 90.50 0.00 0.00 1664.00
1944 0.00 0.00 0.00 5.50 126.00 159.50 453.50 406.50 248.00 92.00 0.00 0.00 1491.00
1945 0.00 0.00 0.00 16.50 99.50 189.50 529.00 504.00 165.50 95.50 0.00 0.00 1599.50
1946 0.00 0.00 a 0.00 a 46.61 b 84.22 a 240.52 a 582.50 510.50 201.00 18.60 a 0.00 b 0.00 1683.94
1947 0.00 0.00 0.00 9.50 200.50 186.50 493.00 423.50 193.50 82.00 0.00 0.00 1588.50
1948 0.00 0.00 0.00 7.00 154.50 346.00 415.00 398.00 198.00 65.10 a 0.00 0.00 1583.60
1949 0.00 0.00 0.00 37.78 c 182.50 269.50 494.93 b 490.00 285.50 7.00 0.00 0.00 1767.21
1950 0.00 0.00 0.00 3.00 38.50 203.00 441.50 445.50 255.50 63.50 0.00 0.00 1450.50
1951 0.00 0.00 0.00 2.50 94.00 173.00 503.50 408.00 179.00 30.00 0.00 0.00 1390.00
1952 0.00 a 0.00 0.00 30.50 101.50 239.00 440.50 426.00 268.00 83.50 0.00 0.00 1589.00
1953 0.00 0.00 0.00 24.00 37.50 159.00 495.00 453.50 278.50 72.00 0.50 0.00 1520.00
1954 0.00 0.00 0.00 13.50 161.00 168.10 a 516.50 326.00 192.00 22.50 2.00 0.00 1401.60
1955 0.00 0.00 0.00 1.50 61.50 245.00 413.50 458.00 186.50 51.50 0.00 a 0.00 1417.50
1956 0.00 0.00 0.00 17.00 171.50 208.00 452.00 352.50 184.00 0.00 z 0.00 z 0.00 1385.00
1957 0.00 0.00 0.00 8.00 124.00 287.07 a 485.50 410.00 247.00 17.50 0.00 0.00 1579.07
1958 0.00 0.00 0.00 0.00 245.50 303.00 478.00 550.50 187.00 67.50 0.00 0.00 1831.50
1959 0.00 0.00 0.00 9.00 50.00 333.00 546.00 379.00 169.00 21.50 0.00 0.00 1507.50
1960 0.00 0.00 0.00 7.50 69.50 305.50 647.50 381.50 279.50 43.00 0.00 0.00 1734.00
1961 0.00 0.00 0.00 8.50 129.50 440.00 567.00 641.00 124.00 32.00 0.00 0.00 1942.00
1962 0.00 0.00 0.00 42.50 33.50 279.50 445.00 380.50 231.00 17.50 0.00 0.00 1429.50
1963 0.00 0.00 0.00 6.00 143.50 221.00 400.00 458.50 327.00 138.00 0.00 0.00 1694.00
1964 0.00 0.00 0.00 2.50 84.50 220.50 530.50 365.00 128.50 57.50 0.00 0.00 1389.00
1965 0.00 0.00 0.00 10.50 74.50 272.00 454.00 424.00 60.50 58.50 2.50 0.00 a 1356.50
1966 0.00 0.00 1.50 5.50 187.50 238.00 496.00 492.50 328.50 16.00 0.00 0.00 1765.50
1967 0.00 0.00 0.00 0.00 114.00 244.00 590.00 621.00 372.00 13.50 0.00 0.00 1954.50
1968 0.00 0.00 0.00 7.50 57.50 262.00 567.50 338.50 194.50 6.00 0.00 0.00 1433.50
1969 0.00 0.00 0.00 18.50 187.50 262.50 480.50 504.00 248.50 0.50 2.00 0.00 1704.00
1970 0.00 0.00 0.00 0.00 105.50 335.50 531.00 540.50 122.00 39.00 0.00 0.00 1673.50
1971 0.00 0.00 0.00 0.50 121.00 214.00 489.00 601.50 120.00 45.47 a 0.00 0.00 1591.47
1972 0.00 0.00 0.00 0.50 126.50 301.50 435.00 518.00 139.50 49.08 a 0.00 0.00 1570.08
1973 0.00 0.00 0.00 0.50 140.00 306.00 553.00 475.00 199.50 39.00 0.00 0.00 1713.00
1974 0.00 0.00 0.00 5.00 85.50 392.50 497.00 422.00 236.00 36.00 0.00 0.00 1674.00
1975 0.00 0.00 0.00 0.00 65.50 175.50 600.00 372.50 223.00 57.00 0.00 0.00 1493.50
1976 0.00 0.00 0.00 0.50 124.00 184.00 525.50 332.00 259.50 33.50 3.00 0.00 1462.00
1977 0.00 0.00 0.00 53.00 27.50 368.50 436.50 468.10 a 157.50 26.50 0.00 0.00 1537.60
1978 0.00 0.00 12.00 10.00 64.00 243.00 467.00 403.50 203.00 40.50 0.00 0.00 1443.00
1979 0.00 0.00 0.00 5.00 134.50 308.00 529.00 501.50 304.66 a 93.00 0.00 0.00 1875.66
1980 0.00 0.00 0.00 64.00 126.50 249.50 501.00 0.00 z 225.00 75.00 0.00 0.00 1241.00
1981 0.00 0.00 0.00 35.50 113.00 260.00 474.50 594.00 311.50 24.50 1.61 b 0.00 1814.61
1982 0.00 0.00 0.00 0.00 93.50 313.50 447.50 540.00 228.00 20.50 0.00 0.00 1643.00
1983 0.00 0.00 0.00 3.50 155.00 253.00 393.50 590.00 183.00 24.50 8.50 0.00 1611.00
1984 0.00 0.00 0.00 14.50 123.50 224.50 541.00 568.50 163.00 53.50 0.00 0.00 1688.50
1985 0.00 0.00 0.00 a 26.25 b 156.03 a 301.55 a 649.50 342.50 80.50 0.50 0.00 0.00 1556.84
1986 0.00 0.00 2.50 17.50 169.00 416.50 373.50 561.50 120.00 6.50 0.00 0.00 1667.00
1987 0.00 0.00 0.00 71.00 192.00 337.50 409.50 374.50 268.00 50.50 3.50 0.00 1706.50
1988 0.00 0.00 0.00 32.50 127.50 382.00 546.50 437.00 178.00 117.50 0.00 0.00 1821.00
1989 0.00 0.00 0.00 28.50 75.50 292.50 544.00 365.50 176.50 24.00 0.00 0.00 1506.50
1990 0.00 0.00 0.00 28.00 52.50 243.50 518.50 483.50 359.50 28.00 0.00 0.00 1713.50
1991 0.00 0.00 0.00 1.00 29.00 163.00 518.00 555.00 246.00 65.50 0.00 0.00 1577.50
1992 0.00 0.00 0.00 35.00 195.00 339.00 394.00 488.50 154.50 57.50 0.00 0.00 1663.50
1993 0.00 0.00 0.00 0.00 215.00 174.00 201.50 327.00 170.50 53.50 0.00 0.00 1141.50
1994 0.00 0.00 0.00 49.00 145.50 285.00 565.50 545.00 265.50 9.00 0.00 0.00 1864.50
1995 0.00 0.00 0.00 1.50 69.00 213.50 458.80 a 374.50 233.50 6.00 0.00 0.00 1356.80
1996 0.00 0.00 0.00 16.50 61.00 250.50 539.00 456.50 149.48 a 93.00 0.00 0.00 1565.98
1997 0.00 0.00 0.00 4.50 159.00 275.50 410.50 465.00 263.50 23.50 0.00 0.00 1601.50
1998 0.00 0.00 0.00 25.00 82.50 148.00 618.00 538.00 346.50 20.50 0.00 0.00 1778.50
1999 0.00 0.00 0.00 1.50 98.50 240.00 a 424.50 496.57 d 164.48 a 20.15 a 5.00 0.00 1450.71
2000 0.00 0.00 0.00 a 20.00 106.00 268.39 b 520.80 a 516.50 172.00 20.00 0.00 0.00 1623.69
2001 0.00 0.00 0.00 28.45 a 151.50 256.55 a 535.86 c 563.54 c 285.00 29.93 b 0.00 0.00 1850.82
2002 0.00 0.00 0.00 5.50 96.62 a 339.00 632.40 a 369.33 b 212.00 2.00 0.00 0.00 1656.84
2003 0.00 0.00 a 3.00 5.50 147.00 295.50 631.50 553.50 148.50 k 33.50 k 0.00 e 0.00 1636.00
2004 0.00 0.00 1.50 13.00 65.00 275.00 510.50 441.50 123.00 f 39.00 0.00 0.00 1345.50
2005 0.00 z 0.00 0.00 1.73 d 77.50 173.00 507.00 469.50 144.00 22.00 0.00 0.00 1394.73
2006 0.00 0.00 0.00 c 7.00 m 150.57 c 305.77 d 339.50 m 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 456.34
Period of Record Statistics
MEAN 0.00 0.00 0.42 17.70 119.91 267.55 508.91 467.87 220.12 44.48 0.47 0.00 1649.64
S.D. 0.00 0.00 1.64 20.03 54.58 68.00 76.40 78.72 69.80 29.63 1.36 0.00 192.28
SKEW 0.00 0.00 5.41 1.86 0.49 0.38 -0.71 0.07 0.20 0.76 3.82 0.00 0.38
MAX 0.00 0.00 12.00 107.50 266.50 440.00 649.50 641.00 391.00 138.00 8.50 0.00 2150.00
MIN 0.00 0.00 0.00 0.00 27.50 148.00 201.50 326.00 60.50 0.50 0.00 0.00 1141.50
NO YRS 74 76 76 75 76 76 75 74 73 73 74 75 69