TROUTDALE, OR

Monthly Sum of Growing Degree Days (Degrees Fahrenheit)

(358634)

Base Temperature = 40 F

File last updated on Feb 28, 2015
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.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
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)JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANN
1965-----z-----z-----z-----z-----z-----z881.79c906.50 642.50 525.00b310.00 97.50 3363.29f
196695.50 99.50 214.50 410.00 552.00 662.50 792.50 844.00 701.00 409.50 230.50 155.00 5166.50
1967187.00 137.00 168.00 258.50 527.07b784.00 909.50 1021.50 816.00 494.50 242.00 103.50 5648.57
196875.50 252.50 317.50 300.00 531.00 686.00 887.50 824.50 657.00a417.41b225.00 48.00f5173.91a
19698.28b42.00 264.00 362.50 622.50 802.50 827.50 801.00 704.00 394.00a246.00 102.00 5176.28
197072.00 197.50 227.50 258.00 496.00a773.00 878.50 880.50 604.00 406.00 247.00 61.50 5101.50
1971119.50 139.50 125.50 297.50 535.50 575.50 869.00 947.50 619.00 388.50 176.00 55.00 4848.00
197265.50 124.50a274.00 227.00 591.50 683.50 920.50 896.00a563.27d396.00 235.00a124.50 5101.27
197365.00 118.00 247.00 364.50 586.03b695.00 894.50 779.00 681.50b416.50a126.00 164.50 5137.53
1974120.00 103.50 221.50 342.00 454.50a726.50 811.00a895.50 789.21b485.00 249.00a176.50 5374.21
1975117.00 80.00 165.00c233.00 549.50 667.50 872.00 776.50 783.50 448.50 199.50 124.00 5016.00
1976129.50 128.50a167.50 334.00 547.50 625.00 848.50 782.00 724.50 461.50 287.00 69.50 5105.00
197743.00 156.50 208.00 410.00 445.00 740.00 818.50 987.50 625.50 475.00 177.00 137.50 5223.50
197852.50 172.50 293.50 361.00 -----z784.00 880.00 851.00 646.50 535.00 103.50 55.50 4735.00a
19790.50 90.00 300.00 358.50 580.00 746.00 914.50 841.50 764.00 539.00 162.00 129.50 5425.50
198015.50a102.50 205.50 425.50 393.00g493.50f847.78d739.04e642.64e359.50f192.50f103.50g2978.46e
1981144.81e140.28e296.11d269.50f392.00h638.00d799.04e733.00g564.00f405.00e240.00f100.50f2423.24f
198271.00 130.00 212.50 290.50 539.00 745.50 800.00 850.50 687.50 462.50 151.50 68.00 5008.50
1983116.50a173.00 316.50 351.50a401.50m627.00 784.00 863.00 606.50a398.79b293.50 41.50a4571.79a
1984112.50 128.50 338.00 312.50 500.50 596.00a864.50 879.50 663.50 367.00a199.50 33.50 4995.50
19851.50a60.00 156.00 364.00 545.00 696.50 998.00 838.50 580.50 391.00 93.50a1.03b4725.53
198657.50 85.00o232.00k321.00 261.50m779.00a450.50m687.00j620.50 343.00i211.50 26.50 2016.00f
198741.50 147.00 244.50a456.50 632.50 783.00 827.50 900.00 713.00a549.00 274.00 82.50 5651.00
198835.50 150.00 229.00a364.00 518.00 662.50 863.00 812.50 671.50 559.00 247.00 104.50 5216.50
1989110.50 26.50 203.50 466.50 565.50 763.50 725.50 -----z664.50 396.50 282.19d78.50 4283.19a
1990162.00 119.00 322.00 427.75b518.00 723.00 955.50 966.50 806.50 416.50 267.50 64.50 5748.75
199186.50a241.50a198.00 359.00 452.50 581.00 913.00 934.00 803.00 502.00 223.00 87.00 5380.50
1992133.00 248.50 379.00 467.50 707.00 820.00 935.00 650.00j655.50 468.50 180.00 13.00 5007.00a
199352.00 69.00 251.50 377.50 682.00 684.00 765.00 896.00 765.00 560.00 76.00 71.00 5249.00
1994159.50 55.50 339.50 434.00 663.50 672.50 970.50 916.50 828.00 432.50 78.50 90.00 5640.50
199582.50 233.00a285.50 352.50 666.50 725.50 949.50 842.00 -----z475.00 311.50 75.00n4923.50b
199657.50l89.50j175.50k270.50i219.50o431.00k458.00p537.50l261.50q301.00k92.50k22.00n0.00l
199742.50l56.50m71.50q201.50k473.50j408.50m377.50q536.50n379.00o250.50k119.00m48.50k0.00l
199838.50o93.50i165.50l261.50i282.50m420.00k609.50l448.00q282.50s291.50m161.50m58.00q0.00l
199966.00n45.00p77.00q133.00p140.00v356.50m501.00m374.50s-----z449.00 300.50 164.00 913.50i
200040.00 107.50 186.50 414.00 558.50 721.00 844.00 841.50 694.50 458.00 96.00 41.00a5002.50
200141.00 63.50 246.00 303.00 568.00 637.00 819.50 875.00 714.00 401.00 237.50 86.50 4992.00
200272.50 145.50 175.50 376.50 482.50 690.78e868.50 869.50 711.50 433.00 130.50 102.50 5058.78
2003143.00 114.50 266.00 329.00 520.00 758.50 951.50 907.00 713.98e567.00 145.50 38.00 5453.98
200440.50 73.00 327.00 450.00 593.50 736.00 947.50 321.00s338.00m456.50 168.50 -----z3792.50c
2005-----z65.50 263.50 328.00 567.50 585.00 852.50 857.50 578.50 439.50 99.00 47.50 4684.00a
200693.00 67.50 156.00 333.00 -----z668.00 854.00 760.00 640.00 303.50 104.50 -----z3979.50b
2007-----z60.00 180.00c218.00 407.00 540.00 798.00 829.00 631.50 367.00 155.50 44.50 4230.50a
200828.00 117.00 126.00 218.00 511.50 578.50 823.50 863.00 674.50 387.50 255.00 64.50 4647.00
200940.00 60.50 126.50 298.00 543.00 703.00 936.00 861.00 747.00 390.00 193.00 26.00 4924.00
2010121.50 140.50 249.00 297.50 410.50 562.00 783.00 811.00 672.50 466.50 174.50g54.50 4568.50a
201182.00a49.00 144.50 200.50 391.50 596.50 750.50 853.00 748.00 448.00 134.00 38.00 4435.50
201250.50 72.50 -----z-----z482.50 585.00 798.50 873.50a697.00 452.00 217.50a86.50 4315.50b
201331.00 83.00 211.00 338.00 541.00 687.50 864.50 894.50 717.50 362.00 -----z32.00 4762.00a
201458.50 69.00 246.00 348.00 608.50 640.50 912.50 951.00 761.50 575.00 215.00 116.50 5502.00
2015124.00 -----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z124.00k
Period of Record Statistics
MEAN79.51 117.14 234.28 342.75 543.43 684.94 862.39 866.32 691.43 447.34 198.99 79.50 5170.88
S.D.46.23 56.36 64.67 69.40 73.28 73.19 62.86 60.32 67.76 62.71 67.91 43.49 311.22
SKEW0.29 0.80 0.17 -0.13 0.07 -0.14 0.04 0.27 0.20 0.34 -0.19 0.46 -0.11
MAX187.00 252.50 379.00 467.50 707.00 820.00 998.00 1021.50 828.00 575.00 311.50 176.50 5748.75
MIN0.50 26.50 125.50 200.50 391.50 540.00 725.50 739.04 563.27 303.50 76.00 1.03 4435.50
YRS44.00 44.00 43.00 43.00 39.00 44.00 45.00 41.00 43.00 45.00 43.00 41.00 29.00