TROUTDALE, 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