WAPATO, WASHINGTON

Monthly Total Growing Degree Days

(458959)

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
1915 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 401.50 51.96 b 6.95 b 460.41
1916 12.50 12.43 a 210.00 360.50 480.00 708.50 838.00 956.00 681.50 366.12 b 52.00 5.50 4683.05
1917 8.27 a 18.67 a 38.75 a 237.69 d 527.50 683.00 1040.10 b 1018.72 b 723.50 445.50 149.50 130.00 5021.20
1918 0.00 z 21.50 71.00 237.50 363.50 765.50 915.50 847.00 803.50 442.50 91.55 a 74.00 4633.05
1919 46.50 11.00 198.50 384.00 543.00 683.00 1014.00 968.00 622.50 309.00 89.50 4.13 a 4873.13
1920 38.00 7.00 145.50 275.50 523.90 a 713.50 1051.50 949.00 613.00 349.50 75.50 11.50 4753.40
1921 15.00 38.50 203.00 293.00 627.00 768.00 949.00 959.00 517.50 421.50 103.50 41.50 4936.50
1922 0.00 1.00 76.50 301.00 549.50 935.50 1061.50 958.00 778.50 0.00 z 0.00 z 0.00 z 4661.50
1923 0.00 z 0.00 z 0.00 z 460.00 552.46 c 747.00 987.87 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2747.33
1924 7.50 k 74.57 a 124.00 250.50 g 830.50 846.00 1049.00 938.55 b 714.50 390.27 c 95.00 60.40 b 5122.79
1925 28.00 100.00 249.55 a 485.50 745.00 878.00 1210.50 1014.00 731.00 400.00 37.50 29.50 5908.55
1926 4.50 99.56 a 327.50 533.04 b 562.00 854.50 1105.00 887.50 386.50 g 408.50 115.00 16.50 4913.59
1927 0.50 28.00 142.00 322.50 521.50 855.50 1092.00 996.50 620.50 381.30 a 135.50 23.50 5119.30
1928 14.50 1.50 215.45 a 283.93 b 0.00 z 821.00 1147.00 b 997.68 a 748.50 385.00 63.50 6.00 4684.06
1929 0.00 i 2.00 187.00 290.50 655.00 781.50 1029.50 1073.50 642.93 a 453.50 38.50 16.50 5170.43
1930 5.00 66.50 265.05 a 504.50 592.10 a 741.00 1128.50 1088.50 719.00 292.00 72.50 0.00 5474.65
1931 29.97 a 40.50 187.50 417.00 774.50 788.79 a 1110.50 1076.22 a 701.38 a 402.48 a 84.50 0.00 b 5613.34
1932 8.27 a 98.50 198.50 268.00 l 639.50 923.00 943.50 986.83 a 742.50 406.00 121.50 38.50 5106.60
1933 39.50 34.50 129.00 380.50 515.00 852.50 1096.00 1048.32 a 600.00 530.50 96.50 130.50 5452.82
1934 54.00 108.50 349.00 664.00 771.00 922.50 1042.12 a 1054.50 642.93 a 481.00 171.00 18.00 6278.55
1935 37.00 18.00 107.50 324.50 679.00 801.50 1053.50 959.50 820.50 368.00 16.50 2.07 a 5187.57
1936 24.50 25.50 152.00 525.00 b 781.00 868.50 1097.50 1082.00 739.66 a 500.50 18.00 37.00 5851.16
1937 0.00 20.50 209.00 327.50 653.50 830.50 1135.50 891.50 786.50 529.00 158.00 33.50 5575.00
1938 24.50 8.00 153.50 453.21 b 675.50 916.00 1183.50 978.00 890.50 419.50 71.50 44.00 5817.71
1939 28.00 12.96 a 255.50 471.00 702.84 b 737.00 1069.50 1044.00 740.50 412.00 39.50 n 20.00 p 5473.31
1940 0.00 b 47.50 295.50 422.50 744.00 b 967.00 1100.00 1072.27 c 828.00 493.00 20.36 b 10.00 6000.12
1941 3.00 23.50 308.50 501.00 650.50 826.50 1248.00 1038.50 628.50 374.50 121.00 34.50 5758.00
1942 0.00 16.50 161.50 446.00 614.00 753.00 1135.50 1145.40 b 821.50 468.00 37.00 6.00 5604.40
1943 4.00 26.92 b 139.00 484.50 588.00 776.00 1111.00 967.00 861.00 434.50 50.00 44.00 5485.92
1944 4.50 17.50 134.00 424.00 683.00 841.50 1115.50 1009.00 830.50 575.50 70.50 9.50 5715.00
1945 44.00 63.00 158.50 337.50 711.50 834.50 1101.61 c 910.50 f 670.00 c 470.17 a 69.00 7.00 4466.77
1946 5.17 a 37.50 160.17 a 371.00 713.53 b 777.22 c 1076.00 1057.00 671.50 294.50 22.50 77.00 5263.09
1947 26.50 87.50 303.00 499.50 839.38 e 809.44 c 1036.43 a 967.50 762.00 406.00 83.28 a 7.75 a 5828.29
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 988.97 a 971.85 a 905.72 a 663.10 a 259.50 f 56.50 8.50 3594.64
1949 0.00 33.00 175.00 490.00 789.98 a 837.41 a 1034.50 1012.15 a 771.43 b 276.42 a 166.61 b 38.00 5624.50
1950 3.00 40.00 77.50 k 233.00 g 602.00 822.00 1078.00 1081.38 a 804.00 332.00 99.50 28.00 4889.88
1951 19.00 47.50 117.00 462.00 669.50 867.00 1093.00 1017.00 758.00 365.50 41.00 8.50 5465.00
1952 0.50 23.00 125.79 e 500.36 b 699.00 804.00 1084.48 a 997.88 b 800.00 547.50 22.50 9.50 5614.51
1953 130.00 76.50 184.40 b 315.00 555.42 a 668.50 1017.83 a 959.00 741.00 431.50 121.80 e 43.50 5244.45
1954 23.50 57.50 102.00 323.00 670.50 687.32 b 954.50 863.50 646.00 260.50 160.00 14.50 i 4748.32
1955 0.00 u 7.00 l 75.90 b 208.27 d 529.87 d 635.50 g 923.50 995.50 690.50 343.50 68.50 3.00 3838.54
1956 1.55 a 7.00 157.00 493.00 772.50 721.50 1110.00 1013.18 a 730.00 358.00 59.00 61.00 5483.73
1957 0.00 39.50 146.00 433.50 790.50 859.00 948.00 905.00 792.50 350.09 b 62.00 34.50 5360.59
1958 38.50 160.50 140.00 343.00 876.50 977.50 1190.50 1127.50 678.00 411.00 149.00 21.00 6113.00
1959 25.00 39.00 162.00 442.50 544.50 805.00 1079.00 904.50 642.50 401.50 106.00 30.50 5182.00
1960 2.00 41.50 246.00 384.50 556.00 873.50 1223.95 c 907.00 732.00 440.72 a 88.00 2.50 5497.66
1961 60.50 115.00 215.00 391.50 627.00 989.50 1159.50 1188.00 656.00 338.50 21.00 24.00 5785.50
1962 51.50 54.00 135.50 486.50 542.00 820.50 1038.00 896.00 760.00 339.50 127.50 19.00 5270.00
1963 10.00 57.00 196.50 308.00 666.50 831.50 675.00 i 1032.50 879.00 461.00 132.50 2.00 4576.50
1964 16.50 36.50 126.00 311.00 585.00 790.50 1004.50 881.00 654.50 388.00 38.00 19.00 4850.50
1965 15.00 74.50 187.50 462.50 615.00 856.00 1076.00 1031.50 669.50 466.50 173.50 17.00 5644.50
1966 6.50 26.50 207.00 444.50 726.00 761.50 985.50 1040.00 809.00 398.50 111.00 35.50 5551.50
1967 64.50 115.00 134.50 233.00 654.50 911.00 1102.00 1162.50 870.50 442.00 99.00 23.00 5811.50
1968 45.50 130.50 220.50 326.50 635.50 852.50 1129.50 910.00 750.00 304.00 70.00 21.50 5396.00
1969 0.00 0.00 184.50 356.00 743.50 972.00 1010.00 921.50 731.50 305.00 101.50 6.50 5332.00
1970 0.50 58.00 175.00 257.00 638.00 970.50 1106.00 1053.00 589.50 324.00 79.00 14.50 5265.00
1971 78.00 72.00 83.50 321.50 727.50 711.00 1107.50 1176.50 594.50 360.50 78.00 9.50 5320.00
1972 20.00 59.00 257.50 276.50 780.50 885.00 1081.00 1105.00 605.00 386.00 68.00 51.00 5574.50
1973 1.00 42.00 230.50 461.50 742.00 878.00 1173.00 1059.50 782.50 401.50 52.00 40.00 5863.50
1974 86.00 45.50 190.50 381.50 564.50 966.50 1017.00 1096.00 795.00 405.00 127.00 23.00 5697.50
1975 13.50 18.00 100.50 309.00 644.80 a 818.50 1200.00 947.50 805.00 366.50 113.00 50.50 5386.80
1976 34.50 52.00 134.00 335.00 668.00 743.00 1042.50 952.00 851.00 397.50 131.50 3.00 5344.00
1977 10.00 100.50 181.00 575.00 530.00 1003.50 1061.00 1215.00 659.00 397.00 107.00 62.00 5901.00
1978 5.50 27.50 303.50 376.50 584.50 924.50 1104.50 984.50 673.50 395.00 43.50 9.50 5432.50
1979 0.00 36.00 247.00 368.00 748.50 927.00 1153.50 1067.00 845.00 491.00 40.50 28.00 5951.50
1980 0.00 3.76 b 112.50 g 491.50 671.00 738.46 d 1074.50 917.00 745.00 404.00 114.11 b 0.00 l 5159.33
1981 36.54 c 103.19 a 258.50 369.23 d 609.00 706.00 958.50 1100.50 697.50 287.50 86.50 12.40 a 5225.35
1982 11.00 85.00 122.00 218.50 586.50 892.00 990.50 981.50 653.00 262.00 22.00 14.50 4838.50
1983 28.50 66.50 235.50 327.50 707.50 739.00 898.00 1018.00 581.50 326.50 107.50 0.00 5036.00
1984 13.00 15.00 204.00 258.50 468.00 718.00 1039.00 957.50 642.50 280.00 48.62 a 0.00 4644.12
1985 0.00 19.00 149.00 434.00 711.00 863.00 1235.50 950.50 596.50 333.00 72.50 0.00 5364.00
1986 3.50 75.00 281.00 315.50 641.50 958.00 905.00 1118.50 598.00 417.50 100.00 0.00 5413.50
1987 3.00 33.50 187.50 490.00 747.00 887.00 998.00 991.00 799.00 419.50 127.50 25.00 5708.00
1988 1.00 78.50 169.00 417.50 581.50 791.00 1044.50 984.50 691.00 568.00 111.50 5.00 5443.00
1989 0.00 z 3.00 127.50 455.00 628.00 885.50 1006.00 946.50 736.50 355.50 148.50 3.00 5295.00
1990 39.50 55.50 213.50 510.50 560.00 814.00 1139.00 1051.50 881.50 296.00 145.00 5.50 5711.50
1991 18.00 94.50 98.00 379.00 566.50 697.50 1055.50 1086.00 796.00 396.50 45.50 30.50 5263.50
1992 37.00 68.00 313.00 417.50 748.00 994.50 1011.50 1026.00 640.00 416.50 65.00 0.00 5737.00
1993 2.50 7.00 116.00 314.00 748.00 767.00 824.50 931.00 719.50 433.00 34.00 2.00 4898.50
1994 10.00 14.00 237.00 478.50 697.50 761.00 1166.50 1035.50 817.00 372.50 24.00 31.50 5645.00
1995 2.50 125.00 158.00 313.00 670.00 767.50 1026.00 860.50 797.00 339.00 109.50 21.00 5189.00
1996 20.00 35.50 164.00 370.00 484.50 768.50 1083.00 968.50 619.50 325.00 36.00 0.00 4874.50
1997 8.00 46.50 168.00 304.50 687.00 750.00 983.50 1064.00 730.50 327.50 104.50 3.50 5177.50
1998 8.50 29.00 208.50 367.50 0.00 z 842.00 1202.50 1070.00 864.50 331.50 114.00 26.50 5064.50
1999 15.50 b 38.00 156.50 334.50 516.50 769.50 933.50 1058.00 0.00 z 335.00 164.50 39.50 4361.00
2000 8.00 11.91 a 129.50 433.50 601.00 817.50 1015.50 1002.00 683.50 322.92 a 35.00 0.00 5060.33
2001 0.00 1.00 210.00 318.50 664.00 741.50 1057.50 1070.00 803.00 359.50 110.50 13.00 5348.50
2002 20.50 44.00 98.00 347.00 562.00 864.50 1118.50 971.00 712.50 355.50 96.50 12.50 5202.50
2003 33.50 37.00 252.00 346.00 598.00 915.50 1152.00 1034.50 805.00 507.50 45.50 0.00 5726.50
2004 15.00 21.00 288.50 425.00 614.00 857.50 1116.00 1074.00 709.00 406.00 46.50 10.00 5582.50
2005 12.00 24.50 286.00 375.00 709.00 761.00 1087.50 0.00 z 696.50 394.00 34.50 1.00 4381.00
2006 23.50 19.00 0.00 z 359.00 634.00 840.50 1157.00 995.50 718.50 379.00 101.50 11.50 5239.00
2007 8.50 24.00 207.70 a 340.50 656.00 808.50 1158.00 969.00 695.50 292.00 68.00 20.50 5248.20
2008 0.00 57.00 0.00 z 214.50 681.00 761.50 1062.00 0.00 z 0.00 z 0.00 z 0.00 z 4.00 2780.00
2009 17.50 0.00 z 0.00 z 0.00 z 619.50 0.00 z 0.00 z 0.00 z 776.00 261.00 44.00 0.00 1718.00
2010 9.50 56.00 187.00 328.50 504.00 745.50 1055.00 981.50 713.50 401.00 113.00 4.00 5098.50
2011 35.00 26.50 108.00 202.50 497.50 734.00 946.50 1075.00 817.00 373.00 29.50 10.00 4854.50
2012 0.00 z 17.00 127.50 382.50 581.50 705.50 1089.00 1065.50 79.50 z 348.00 0.00 z 20.50 4337.00
2013 9.50 12.00 181.00 38.50 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 202.50
Period of Record Statistics
MEAN 19.09 44.68 182.84 380.79 640.84 823.09 1064.47 1008.61 726.29 388.53 83.88 21.50 5417.18
S.D. 22.04 34.27 64.79 90.58 94.59 84.09 84.54 76.55 82.26 68.61 41.66 24.17 355.72
SKEW 2.16 1.01 0.39 0.27 -0.01 0.31 -0.34 0.21 -0.05 0.45 0.25 2.29 -0.11
MAX 130.00 160.50 349.00 664.00 876.50 1003.50 1248.00 1215.00 890.50 575.50 173.50 130.50 6278.55
MIN 0.00 0.00 38.75 202.50 363.50 668.50 824.50 847.00 517.50 260.50 16.50 0.00 4644.12
NO YRS 90 94 91 92 94 95 95 92 92 94 93 93 73