POMEROY, WASHINGTON

Monthly Total Growing Degree Days

(456610)

Base Temperature = 40 F

File last updated on Jul 25, 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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 789.83 a 814.00 850.00 631.50 326.50 55.50 3.50 3470.83
1949 0.00 g 36.00 110.50 415.00 635.00 722.00 942.00 913.00 684.00 229.00 184.00 20.00 4890.50
1950 1.00 51.50 80.00 181.11 c 438.00 653.50 942.00 913.50 670.50 344.50 100.50 70.50 4446.61
1951 25.00 36.50 61.00 286.00 494.50 628.00 938.00 878.50 660.00 319.50 57.50 16.00 4400.50
1952 6.00 54.00 80.50 350.50 558.00 b 0.00 z 941.00 898.00 737.00 504.50 50.00 33.00 4212.50
1953 162.50 66.00 129.00 256.50 450.50 541.50 884.50 897.00 707.00 437.50 178.50 35.50 4746.00
1954 30.50 75.50 47.50 230.00 521.50 548.50 852.00 796.50 600.00 302.00 196.00 23.00 4223.00
1955 1.00 11.50 30.00 139.50 367.00 738.00 856.50 895.00 620.69 a 375.50 62.00 37.00 4133.69
1956 27.00 12.89 b 100.00 342.00 562.50 619.50 957.00 873.00 667.50 301.50 35.00 50.50 4548.39
1957 0.00 45.11 a 83.00 255.50 539.50 723.00 860.50 776.50 698.00 272.50 52.00 47.00 4352.61
1958 44.36 b 146.50 69.00 214.50 697.50 a 779.00 993.50 1019.00 605.00 382.50 187.50 47.02 a 5185.38
1959 70.50 10.00 89.50 n 306.50 365.80 a 658.97 a 901.58 a 745.00 517.50 273.00 71.50 17.05 a 3937.40
1960 15.00 19.68 a 143.50 151.50 m 170.00 q 660.00 1052.50 799.00 626.50 360.00 84.00 5.00 3765.18
1961 22.50 93.00 127.58 e 228.00 462.42 a 836.50 970.00 1033.50 482.50 282.00 19.50 54.77 a 4612.26
1962 51.00 64.50 56.00 358.00 358.00 621.00 865.50 804.50 632.50 335.50 113.00 60.50 4320.00
1963 16.00 85.50 137.00 209.50 483.00 690.00 789.00 879.00 792.50 436.50 139.00 6.00 4663.00
1964 27.00 25.50 77.00 181.00 402.50 646.00 915.50 764.50 516.50 341.50 76.50 45.00 4018.50
1965 34.50 0.00 z 0.00 z 377.50 506.50 699.31 a 997.68 a 958.50 526.50 498.00 174.00 e 58.50 4830.99
1966 39.00 35.00 178.00 314.50 604.50 657.50 883.50 750.00 f 790.38 d 332.06 e 124.04 d 38.50 3996.98
1967 65.50 76.00 104.50 139.00 483.00 826.61 b 1024.50 1117.00 879.00 419.50 33.00 h 46.50 5181.11
1968 28.00 137.50 251.50 227.50 579.00 741.50 1043.00 858.50 675.50 322.50 75.00 a 27.00 4966.50
1969 2.00 5.50 145.50 319.50 600.50 847.50 909.00 881.50 746.50 306.26 b 118.00 47.50 4929.26
1970 41.50 42.50 83.00 140.00 557.50 868.00 1055.00 996.59 d 410.50 g 198.00 g 91.50 19.00 3894.59
1971 78.50 89.50 87.00 276.00 561.00 461.00 g 1036.71 e 1100.50 550.71 b 247.00 k 57.50 l 23.50 j 3779.93
1972 39.50 j 78.50 214.00 205.00 598.82 a 752.00 950.00 1009.05 a 545.00 337.50 86.00 86.50 4862.37
1973 46.50 58.50 149.00 275.50 600.00 760.50 1017.50 962.00 701.00 225.50 i 80.00 50.63 a 4701.13
1974 74.29 b 61.50 150.50 330.50 382.13 e 839.00 0.00 z 929.50 731.00 394.00 116.50 35.13 a 4044.06
1975 13.95 a 40.00 27.68 c 165.00 498.14 b 638.28 a 1106.00 847.50 702.69 d 405.50 145.38 d 65.10 a 4655.22
1976 45.00 g 48.00 73.50 264.50 567.50 629.00 987.50 859.00 811.00 367.00 108.50 11.50 i 4715.50
1977 12.00 125.00 105.00 469.50 419.00 871.50 954.50 1056.50 585.00 370.00 134.50 84.00 5186.50
1978 40.19 d 69.00 267.00 321.00 473.27 a 819.00 1007.00 917.00 651.50 386.50 63.50 13.00 5027.95
1979 0.00 42.00 163.50 286.00 591.00 787.50 1022.50 988.38 a 812.00 467.50 37.00 78.53 a 5275.92
1980 8.00 59.04 a 103.00 444.00 524.50 613.00 970.00 804.00 717.00 378.50 137.00 141.50 4899.54
1981 46.00 94.50 176.50 309.50 489.00 641.50 917.00 1065.00 700.50 317.23 a 125.17 a 57.00 4938.91
1982 28.50 88.00 108.00 216.50 516.00 813.50 927.50 990.00 674.00 345.00 49.50 25.50 4782.00
1983 91.00 134.50 221.00 261.50 587.00 708.00 901.00 1062.00 593.50 372.50 135.00 2.50 5069.50
1984 62.50 18.00 162.50 217.50 450.00 669.00 1003.00 1011.00 622.00 267.63 a 16.50 0.00 4499.63
1985 0.00 b 60.00 j 127.88 c 291.50 438.00 810.00 1169.00 961.50 532.00 318.50 9.50 l 0.00 l 4648.38
1986 19.50 j 89.00 273.83 a 304.50 626.50 913.00 887.00 1106.00 565.50 406.00 32.50 o 1.00 5172.33
1987 16.50 43.00 180.50 483.50 645.00 755.50 882.98 a 596.50 k 771.00 249.00 o 42.50 n 0.00 z 3777.98
1988 15.00 p 22.00 i 76.50 352.00 548.50 702.00 932.00 864.50 643.00 499.50 111.50 22.00 4751.50
1989 30.50 5.50 132.00 349.00 429.50 774.00 951.50 879.00 717.50 367.50 189.50 32.50 4858.00
1990 76.00 75.50 222.00 495.00 540.50 777.00 1107.50 974.00 769.00 329.00 152.00 23.00 5540.50
1991 29.50 130.50 71.82 a 313.50 493.00 419.00 j 990.00 706.00 k 528.50 j 378.00 97.00 36.00 m 2503.32
1992 67.50 i 74.50 j 184.50 i 273.00 k 349.00 m 872.00 912.50 984.00 656.90 a 299.00 i 39.50 i 3.88 c 3429.27
1993 15.00 p 16.50 i 117.00 267.50 713.00 719.00 749.00 773.50 605.00 418.50 30.00 35.65 a 4428.15
1994 80.50 35.00 214.00 400.71 b 569.50 700.00 978.00 931.50 728.00 293.50 28.89 c 48.50 5008.10
1995 42.00 100.00 149.50 236.50 492.00 595.00 871.00 760.50 672.50 241.50 189.00 30.50 4380.00
1996 42.50 0.00 z 78.50 304.50 360.00 636.00 923.50 917.00 501.00 298.50 56.50 17.00 4135.00
1997 30.50 34.00 150.00 0.00 z 523.00 616.00 861.50 956.50 683.28 a 354.00 113.50 9.50 4331.78
1998 50.50 55.00 148.50 260.50 434.50 634.50 1043.00 952.50 749.50 273.00 115.50 45.98 a 4762.98
1999 50.00 37.50 99.50 164.50 353.50 580.38 d 848.00 922.00 532.00 279.50 171.21 a 30.47 b 4068.56
2000 2.07 a 37.00 67.00 332.00 471.50 628.33 c 834.50 804.45 a 541.00 209.50 6.00 0.00 3933.35
2001 2.58 a 4.00 122.00 194.50 492.00 557.07 a 836.00 889.50 680.00 c 277.97 a 118.00 13.71 e 4187.33
2002 15.00 27.50 43.00 213.50 405.50 658.00 928.00 780.00 578.00 203.00 98.50 44.50 3994.50
2003 56.00 30.00 148.50 233.50 431.00 706.50 978.00 724.50 f 696.00 435.50 54.31 a 2.00 3771.31
2004 11.00 0.00 z 205.00 284.50 444.00 673.00 923.50 900.00 524.40 e 305.50 47.50 38.50 4356.90
2005 46.50 7.00 115.50 234.50 491.00 571.00 873.50 862.66 b 431.40 e 315.00 29.48 a 48.05 a 4025.59
2006 51.00 35.00 77.00 213.50 461.00 687.86 b 641.50 j 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1525.36
Period of Record Statistics
MEAN 36.16 56.50 125.85 280.78 505.12 707.21 941.54 914.22 650.73 345.56 97.84 35.74 4625.45
S.D. 30.31 36.85 59.09 85.21 85.62 92.90 81.91 95.24 95.11 70.11 52.08 26.84 423.32
SKEW 1.52 0.70 0.65 0.58 0.21 0.28 0.29 0.22 -0.04 0.32 0.23 1.23 0.08
MAX 162.50 146.50 273.83 495.00 713.00 913.00 1169.00 1117.00 879.00 504.50 196.00 141.50 5540.50
MIN 0.00 4.00 27.68 139.00 353.50 541.50 749.00 745.00 431.40 203.00 6.00 0.00 3933.35
NO YRS 51 51 55 55 56 56 57 54 56 53 52 53 33