TROUTDALE SUBSTATION, OREGON

Monthly Total Growing Degree Days

(358634)

Base Temperature = 50 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 478.00 455.18 a 309.00 114.50 0.00 0.00 1356.68
1949 0.00 4.00 6.20 a 91.00 290.00 327.00 476.50 503.00 392.50 47.50 89.50 1.03 a 2228.23
1950 0.00 2.00 12.00 25.86 a 151.00 353.00 500.00 573.00 340.50 101.78 a 26.00 15.00 2100.15
1951 0.50 6.00 2.50 143.00 226.00 397.00 540.00 485.50 433.00 139.00 6.00 0.00 2378.50
1952 0.00 0.00 a 1.50 85.50 227.50 295.00 552.00 554.90 a 447.41 a 337.50 8.00 0.00 2509.31
1953 24.28 a 4.00 13.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 42.93 a 3.00 87.71
1954 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
1955 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
1956 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
1957 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
1958 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
1959 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 380.50 f 294.50 153.50 18.10 a 0.00 466.10
1960 0.00 0.00 b 39.00 81.50 132.27 a 350.50 543.00 444.50 332.50 163.50 10.50 0.00 f 2097.27
1961 9.30 a 12.00 18.00 65.00 212.87 a 463.89 c 571.00 629.82 a 288.50 131.50 0.00 1.55 a 2403.42
1962 3.00 1.00 6.50 124.50 111.50 335.50 499.58 e 494.50 394.00 147.00 37.00 0.00 2154.08
1963 0.00 19.00 16.50 42.50 229.00 310.00 161.00 r 492.50 439.50 187.50 12.00 0.00 1748.50
1964 0.00 0.00 25.50 30.00 131.00 281.00 357.00 g 440.89 d 293.50 199.50 4.00 3.50 1408.89
1965 5.50 2.50 57.50 114.00 157.50 346.03 a 601.18 c 596.50 344.50 236.78 b 71.00 5.00 2537.99
1966 2.00 0.50 34.00 114.50 245.00 362.50 482.50 534.00 401.00 127.00 16.00 6.00 2325.00
1967 12.00 4.00 10.00 26.00 235.71 b 484.00 599.50 711.50 516.00 189.50 37.50 3.50 2829.21
1968 1.00 61.00 55.50 61.50 224.00 386.00 577.50 514.50 379.66 a 125.07 b 21.00 0.00 f 2406.72
1969 0.00 b 0.00 48.00 83.50 322.00 502.50 517.50 491.00 404.00 109.53 a 47.50 0.00 2525.53
1970 5.00 4.50 9.00 23.50 207.18 a 473.00 568.50 570.50 304.00 131.50 40.50 2.00 2339.18
1971 4.50 11.00 4.50 58.00 232.00 276.00 559.00 637.50 319.00 143.00 3.50 0.00 2248.00
1972 4.50 5.70 a 55.50 28.00 285.50 383.50 610.50 615.87 a 294.23 d 124.00 22.24 a 17.50 2447.04
1973 0.50 6.00 15.00 95.00 298.24 b 395.00 584.50 469.00 405.00 b 125.55 a 4.50 1.00 2399.29
1974 6.00 1.50 21.50 60.00 166.88 a 426.50 528.03 a 585.50 516.43 b 180.50 19.14 a 12.50 2524.48
1975 3.50 3.50 4.98 c 22.00 244.50 367.50 562.00 466.50 483.50 153.50 35.50 20.00 2366.98
1976 9.00 4.66 a 13.00 74.00 239.50 325.00 538.50 472.00 424.50 165.00 81.50 0.00 2346.66
1977 0.00 12.50 3.50 143.00 138.50 440.00 508.50 677.50 325.50 166.50 19.00 15.00 2449.50
1978 0.00 9.00 77.50 76.00 0.00 z 484.00 570.00 541.00 346.50 236.50 8.50 0.00 2349.00
1979 0.00 0.00 55.50 88.00 270.00 446.00 604.50 531.50 464.00 238.50 7.50 8.50 2714.00
1980 0.00 a 0.50 7.00 152.00 154.00 g 253.50 f 566.04 d 453.67 e 364.80 e 125.50 f 40.50 f 16.00 g 1544.01
1981 4.77 e 29.22 e 47.07 d 61.50 f 163.00 h 360.00 d 515.67 e 493.00 g 324.00 f 116.25 e 33.00 f 1.00 f 1072.98
1982 1.50 18.50 15.00 60.00 230.00 445.50 490.00 540.50 387.50 164.00 9.00 0.50 2362.00
1983 1.55 a 6.00 34.00 106.55 a 222.50 m 327.00 474.00 553.00 327.41 a 106.90 b 49.50 0.00 a 1985.91
1984 6.50 0.50 56.00 42.00 191.50 316.55 a 554.50 569.50 363.50 133.30 a 10.50 0.00 2244.35
1985 0.00 a 0.50 5.50 111.50 240.50 396.50 688.00 528.50 280.50 106.00 21.21 a 0.00 b 2378.71
1986 1.00 15.50 o 49.50 k 65.50 86.00 m 505.86 a 270.50 m 477.00 j 320.50 125.50 i 16.50 0.00 909.36
1987 0.00 0.00 29.45 a 176.00 322.50 483.00 517.50 590.00 437.59 a 239.50 41.00 5.00 2841.54
1988 0.00 18.00 28.93 a 93.00 216.50 362.50 553.00 502.50 371.50 251.50 32.50 1.50 2431.43
1989 0.00 0.00 13.50 184.00 255.50 463.50 415.50 0.00 z 364.50 112.00 45.58 d 7.00 1861.08
1990 20.00 8.00 64.00 149.46 b 211.50 423.00 645.50 656.50 506.50 111.00 39.00 0.00 2834.46
1991 13.95 a 0.00 z 19.50 96.50 145.50 281.00 603.00 624.00 503.00 241.50 24.00 1.00 2552.95
1992 10.00 26.50 81.00 196.50 397.00 520.00 625.00 440.00 j 355.50 161.00 9.00 0.00 2381.50
1993 0.00 0.00 26.00 89.50 372.00 384.00 455.00 586.00 465.00 250.00 4.00 1.00 2632.50
1994 1.00 0.50 92.00 139.50 353.50 372.50 660.50 606.50 528.00 126.50 0.50 3.50 2884.50
1995 6.00 37.85 a 52.00 83.50 356.50 425.50 639.50 532.00 0.00 z 173.00 51.50 8.50 n 2357.35
1996 1.50 l 7.50 j 10.50 k 71.50 i 62.50 o 241.00 k 308.00 p 347.50 l 131.50 q 123.50 k 2.00 k 0.00 n 0.00
1997 1.00 l 0.00 m 6.00 q 31.50 k 263.50 j 238.50 m 237.50 q 366.50 n 229.00 o 61.00 k 13.00 m 0.00 k 0.00
1998 0.00 o 0.00 i 30.50 l 73.00 i 102.50 m 230.00 k 419.50 l 308.00 q 172.50 s 119.00 m 9.50 m 6.00 q 0.00
1999 1.00 n 0.00 p 3.00 q 22.50 p 52.50 v 186.50 m 321.00 m 254.50 s 13.00 z 144.50 51.00 11.00 206.50
2000 0.00 0.00 8.00 138.00 255.00 421.00 534.00 531.50 394.50 154.50 9.50 0.00 a 2446.00
2001 0.00 0.00 35.50 70.50 260.50 337.00 509.50 565.00 414.00 124.50 27.00 0.00 2343.50
2002 1.00 9.50 8.50 95.00 186.00 414.60 e 558.50 559.50 411.50 158.00 1.50 5.00 2408.60
2003 10.50 1.00 45.50 69.50 224.00 458.50 641.50 597.00 438.60 e 266.00 3.00 0.00 2755.10
2004 1.50 0.00 64.00 161.00 283.50 436.00 637.50 201.00 s 168.00 m 166.50 5.50 0.00 z 1755.50
2005 0.00 z 2.00 31.00 71.00 257.50 285.00 542.50 547.50 278.50 143.50 0.50 0.50 2159.50
2006 0.00 0.00 7.50 72.50 0.00 z 368.00 544.00 450.00 341.00 47.50 20.00 0.00 z 1850.50
2007 0.00 z 0.00 22.70 c 29.50 136.00 241.00 488.00 519.00 331.50 83.00 11.00 1.50 1863.20
2008 0.00 4.50 6.00 36.50 211.00 279.50 513.50 553.00 374.50 105.00 34.00 1.00 2118.50
2009 1.00 0.00 2.00 66.00 238.50 403.00 626.00 551.00 447.00 105.00 15.50 0.00 2455.00
2010 0.00 3.00 33.50 57.00 121.00 262.00 473.00 501.00 372.50 163.00 46.50 g 6.50 1992.50
2011 14.50 1.50 11.00 6.00 k 85.00 296.50 440.50 543.00 448.00 153.00 0.50 0.50 1994.00
2012 0.00 1.00 1.55 a 111.72 a 182.50 285.00 488.50 586.00 397.00 161.50 41.38 a 3.00 2259.15
2013 0.00 0.00 54.25 a 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 54.25
Period of Record Statistics
MEAN 3.50 6.47 27.93 87.84 227.89 380.08 548.47 545.60 386.87 156.35 23.39 3.27 2447.70
S.D. 5.44 11.15 23.42 44.32 70.59 72.59 60.87 62.46 67.48 55.29 21.05 5.04 207.60
SKEW 1.99 2.97 0.85 0.54 0.25 0.05 0.16 0.38 0.31 0.85 1.16 1.85 0.58
MAX 24.28 61.00 92.00 196.50 397.00 520.00 688.00 711.50 528.00 337.50 89.50 20.00 2884.50
MIN 0.00 0.00 1.50 22.00 85.00 241.00 415.50 440.89 278.50 47.50 0.00 0.00 2100.15
NO YRS 53 53 54 51 47 52 51 49 52 54 54 50 34