MONROE, WASHINGTON

Monthly Total Growing Degree Days

(455525)

Base Temperature = 40 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
1929 0.00 z 39.50 o 191.50 222.50 474.00 599.00 731.50 761.00 550.00 451.00 115.00 120.26 b 4215.76
1930 17.00 122.00 182.50 386.50 440.00 617.00 715.00 761.50 573.00 323.00 135.50 58.00 4331.00
1931 150.00 69.00 234.50 362.00 550.50 633.00 738.32 a 710.42 a 577.00 351.00 100.50 42.48 d 4518.71
1932 36.50 69.50 176.18 a 331.50 442.50 615.50 669.50 707.50 537.50 383.50 231.00 44.00 4244.68
1933 36.50 29.50 157.00 271.00 422.50 546.00 641.00 742.50 494.50 370.50 165.50 123.50 4000.00
1934 124.00 147.00 296.50 436.50 533.00 585.50 706.50 739.50 516.50 416.50 237.50 67.50 4806.50
1935 117.00 102.50 62.52 a 218.00 408.50 595.00 716.00 671.00 566.50 306.50 73.00 85.00 3921.52
1936 56.50 8.00 76.00 285.50 491.35 a 635.00 511.50 h 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1552.35
1937 0.00 d 28.50 203.50 221.00 407.00 613.50 679.00 669.50 561.50 417.31 e 173.50 9.00 x 3974.31
1938 29.00 87.00 154.50 332.00 438.00 596.50 756.50 635.00 617.00 362.18 a 82.00 94.50 4184.18
1939 81.50 13.00 142.00 317.50 472.50 524.50 685.74 b 754.50 529.50 347.50 254.50 169.00 4291.74
1940 89.50 123.00 275.00 364.00 569.50 617.50 752.30 c 717.50 640.50 459.00 90.00 107.00 4804.80
1941 125.00 191.00 322.50 397.50 505.50 629.00 867.50 784.41 c 535.50 399.50 205.50 102.50 5065.41
1942 75.00 71.50 184.50 374.00 523.00 562.76 a 885.50 834.00 561.11 c 411.00 0.00 z 69.20 c 4551.57
1943 43.50 75.70 a 104.00 383.57 b 447.90 b 593.04 b 724.88 a 724.50 642.50 395.50 164.50 55.00 4354.59
1944 80.50 51.00 118.00 328.50 474.00 627.50 766.00 728.50 647.00 472.00 160.50 54.50 4508.00
1945 109.00 75.50 132.00 230.00 544.00 584.50 754.50 760.00 523.00 406.44 d 159.00 87.32 a 4365.26
1946 38.50 j 94.50 142.50 274.50 555.00 590.50 764.00 736.50 589.50 237.00 58.50 71.54 e 4114.04
1947 31.52 a 116.50 186.50 j 0.00 z 573.00 620.00 0.00 z 739.00 565.50 397.83 a 99.50 86.91 c 3229.76
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 682.24 a 751.00 718.00 536.90 a 314.00 82.00 10.00 3094.14
1949 1.50 44.00 177.50 363.10 a 546.50 539.50 674.50 734.18 a 608.00 246.50 296.50 64.00 4295.79
1950 9.50 91.50 127.50 247.50 386.50 635.50 718.68 a 776.07 b 596.00 314.00 119.00 167.50 4189.25
1951 22.50 79.00 100.00 322.50 464.50 658.50 773.50 709.00 604.66 a 370.00 139.50 30.00 4273.66
1952 45.00 102.00 120.00 359.50 473.00 522.41 a 754.50 799.28 a 640.00 442.27 a 130.50 88.35 a 4476.81
1953 175.67 a 85.50 176.50 287.14 b 494.50 553.93 b 736.00 785.00 640.50 452.00 276.00 115.00 4777.74
1954 43.00 106.50 79.22 d 255.50 472.00 515.00 656.00 667.50 575.00 361.00 319.50 96.50 4146.72
1955 51.50 46.00 55.50 191.50 399.00 589.14 a 656.50 652.50 537.50 378.50 98.00 58.90 a 3714.54
1956 58.00 8.50 111.50 329.00 556.00 605.50 807.03 a 740.00 573.50 323.95 a 114.50 110.00 4337.48
1957 15.50 55.50 153.97 a 331.03 a 611.22 a 651.21 a 694.92 a 702.50 686.90 a 357.10 e 134.50 115.50 4509.83
1958 119.50 235.50 185.00 330.00 535.00 h 799.50 991.50 865.50 615.50 493.50 157.00 169.50 4962.00
1959 96.50 76.46 b 171.00 329.00 372.00 f 648.00 812.00 760.00 555.00 390.50 143.50 65.00 4046.96
1960 41.00 88.00 189.00 343.00 440.50 616.00 828.50 740.38 a 574.00 442.00 143.00 49.00 4494.38
1961 114.50 154.00 222.50 277.00 479.50 708.50 834.00 867.00 576.50 357.00 90.00 85.50 4766.00
1962 77.00 174.50 123.48 a 367.00 397.50 596.00 734.00 750.00 593.00 415.29 b 209.50 123.00 4560.28
1963 29.50 217.50 158.50 285.00 520.50 586.50 703.50 796.00 729.83 a 473.00 184.00 85.25 a 4769.08
1964 63.50 52.00 140.00 242.50 409.50 550.00 681.00 639.00 511.00 377.50 80.00 38.50 3784.50
1965 43.00 71.00 147.50 315.00 0.00 z 593.50 776.00 773.00 510.00 461.50 253.50 74.50 4018.50
1966 70.00 75.00 175.50 283.50 431.50 580.50 701.00 717.00 634.50 373.50 147.00 132.00 4321.00
1967 80.00 94.00 92.00 186.50 465.50 695.50 746.00 855.50 683.00 414.00 167.50 78.50 4558.00
1968 77.00 151.50 0.00 z 236.50 472.00 574.50 784.50 695.00 563.00 316.00 140.00 17.00 4027.00
1969 11.00 25.50 168.50 264.50 535.50 734.50 701.50 646.50 559.50 336.50 153.00 71.50 4208.00
1970 54.00 144.00 162.50 198.00 417.00 628.00 714.50 693.00 472.50 296.50 167.00 24.91 c 3971.91
1971 82.00 57.68 c 80.50 253.50 467.00 511.50 749.00 803.00 498.50 298.00 125.00 8.50 3934.18
1972 28.00 84.00 184.00 177.50 536.00 576.00 730.00 766.50 488.00 289.00 137.50 89.00 4085.50
1973 65.00 110.50 166.00 254.00 495.00 591.00 723.00 647.50 611.50 342.50 0.00 z 100.50 4106.50
1974 81.50 84.50 156.00 278.00 382.50 585.00 687.50 762.00 667.00 390.00 193.50 119.00 4386.50
1975 54.00 53.00 86.50 179.50 429.50 553.97 a 776.00 672.50 623.28 a 346.00 153.00 100.50 4027.74
1976 83.00 53.50 73.00 273.00 472.50 510.00 716.50 671.50 627.00 379.50 165.50 104.50 4129.50
1977 38.00 169.00 113.50 355.00 412.00 652.50 676.50 837.00 529.00 324.00 141.50 78.00 4326.00
1978 79.00 150.00 242.00 291.50 435.50 710.50 792.00 739.00 553.00 410.50 68.00 18.00 4489.00
1979 5.50 45.50 222.50 270.00 518.50 608.00 796.00 783.00 676.55 a 443.00 95.00 116.00 4579.55
1980 0.00 z 111.50 148.00 388.00 496.50 561.50 730.00 700.50 599.50 395.00 208.00 162.75 a 4501.25
1981 133.50 130.00 277.00 297.50 482.00 565.00 769.50 881.00 622.00 306.00 226.00 68.41 b 4757.91
1982 58.50 80.00 131.50 227.50 482.50 714.00 707.50 770.00 619.00 373.00 80.00 50.50 4294.00
1983 140.50 163.50 263.50 319.00 571.50 598.50 628.50 803.00 527.50 349.50 196.50 19.50 4581.00
1984 137.50 140.00 271.50 291.50 439.00 605.50 755.50 764.00 555.00 283.50 123.50 7.50 4374.00
1985 18.00 43.00 95.00 283.50 481.50 594.50 854.00 756.50 518.50 333.00 64.50 11.00 4053.00
1986 151.00 132.50 300.00 244.50 490.50 667.00 686.00 842.50 551.50 422.00 154.00 48.00 4689.50
1987 67.50 154.00 228.00 376.50 508.00 662.50 775.00 768.00 657.50 406.00 237.50 52.50 4893.00
1988 0.00 z 0.00 z 163.00 322.50 511.00 584.50 745.00 766.50 594.00 484.50 156.50 90.50 4418.00
1989 59.50 21.00 145.50 358.00 457.50 639.50 712.00 741.50 618.50 358.00 176.50 100.00 4387.50
1990 66.00 70.00 187.00 353.00 440.00 601.00 831.50 830.50 664.50 291.50 187.00 39.50 4561.50
1991 54.50 203.50 120.50 266.00 428.00 291.00 n 781.00 811.50 623.50 346.50 189.00 109.00 3933.00
1992 111.50 181.50 262.00 385.00 559.00 688.50 773.00 777.50 551.00 401.50 122.00 15.50 4828.00
1993 50.00 72.00 204.50 318.50 606.00 597.00 665.50 743.00 594.50 441.50 72.00 69.50 4434.00
1994 126.00 51.50 207.50 362.00 534.50 588.00 813.50 806.50 682.50 353.50 68.50 62.50 4656.50
1995 92.00 150.50 193.50 313.50 555.50 638.00 805.50 670.00 680.50 0.00 z 239.00 88.00 4426.00
1996 86.00 108.00 196.00 372.50 385.00 572.00 789.00 768.50 524.00 324.00 134.50 26.00 4285.50
1997 85.50 90.00 162.50 284.50 570.50 604.00 750.00 850.50 0.00 z 371.50 0.00 z 0.00 z 3769.00
1998 118.50 124.00 209.00 337.00 0.00 z 0.00 z 951.00 941.00 772.50 365.00 0.00 z 90.00 3908.00
1999 82.50 89.00 156.00 247.50 378.00 548.50 693.50 776.50 572.00 341.50 218.50 85.00 4188.50
2000 26.50 114.50 159.50 355.00 492.50 631.50 759.50 733.50 615.00 385.50 103.00 60.00 4436.00
2001 77.00 66.00 203.50 305.00 550.00 309.00 n 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1201.50
2002 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 224.50 v 756.50 573.00 310.00 195.00 78.00 1912.50
2003 131.50 70.50 217.50 289.00 467.00 653.00 831.50 794.50 653.50 446.50 84.50 68.50 4707.50
2004 82.50 102.00 250.00 403.00 527.50 683.50 855.00 877.50 575.50 401.00 139.50 74.50 4971.50
2005 133.76 d 73.50 278.00 0.00 z 565.00 598.50 757.50 787.00 554.50 444.00 78.50 86.50 4356.76
2006 121.50 66.50 170.00 285.50 472.00 659.50 808.50 722.00 586.50 331.00 154.50 49.00 4426.50
2007 36.00 99.00 205.00 283.50 469.00 563.50 784.50 699.00 508.50 299.50 103.00 28.50 4079.00
2008 24.00 84.00 78.00 165.50 442.50 491.50 555.50 f 298.50 r 533.57 b 290.50 198.00 39.50 2347.07
2009 19.00 40.50 59.00 206.50 0.00 z 0.00 z 0.00 z 732.50 590.00 267.50 121.50 18.00 2054.50
2010 108.50 114.50 185.00 231.00 337.50 503.50 699.00 680.50 567.50 348.50 124.50 61.50 3961.50
2011 59.50 27.50 106.00 113.00 313.10 a 505.50 624.50 677.00 615.00 302.00 44.50 16.00 3403.60
2012 31.50 49.00 54.50 281.00 403.00 292.50 l 679.50 725.50 544.82 b 291.50 128.50 27.00 3215.82
2013 13.95 a 36.30 a 137.50 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 187.75
Period of Record Statistics
MEAN 69.88 92.83 167.18 295.98 478.03 605.99 749.32 751.79 586.70 369.14 149.46 73.06 4374.65
S.D. 41.47 49.37 62.07 63.95 62.16 57.07 67.52 61.98 57.56 58.05 58.71 39.03 323.71
SKEW 0.36 0.65 0.29 -0.31 -0.10 0.52 0.90 0.42 0.56 0.05 0.59 0.37 -0.32
MAX 175.67 235.50 322.50 436.50 611.22 799.50 991.50 941.00 772.50 493.50 319.50 169.50 5065.41
MIN 0.00 8.00 54.50 113.00 313.10 491.50 624.50 635.00 472.50 237.00 44.50 7.50 3403.60
NO YRS 79 81 81 80 77 78 78 81 81 81 78 80 60