OMAK 2 NW, WASHINGTON

Monthly Total Growing Degree Days

(456123)

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
1931 0.00 6.00 112.00 350.00 702.00 803.50 1073.00 988.50 648.50 340.50 57.00 0.00 5081.00
1932 1.00 12.00 113.00 388.00 584.50 876.72 a 897.00 971.00 683.50 304.50 35.00 25.00 4891.22
1933 0.00 2.00 72.50 331.50 452.50 749.50 1024.00 1007.50 553.00 336.00 64.00 5.00 4597.50
1934 4.50 16.00 203.50 551.00 687.00 859.50 1042.00 1050.50 572.00 395.00 114.50 5.00 5500.50
1935 0.00 5.50 67.00 254.00 556.50 771.50 992.50 937.50 758.50 306.50 1.00 0.00 4650.50
1936 0.00 0.00 45.00 446.00 718.50 795.50 973.50 976.50 622.00 418.00 3.00 5.50 5003.50
1937 0.00 0.00 96.50 281.50 573.50 735.50 1045.50 823.00 692.00 357.00 45.50 5.00 4655.00
1938 0.00 0.00 52.00 332.50 601.00 871.50 1120.00 891.50 829.00 368.00 39.00 0.00 5104.50
1939 1.00 0.00 139.50 406.50 659.00 713.00 1097.50 1073.00 730.50 341.00 22.50 14.00 5197.50
1940 0.00 1.00 202.50 400.00 436.50 l 841.50 1057.00 979.00 810.50 425.50 14.50 3.00 4734.50
1941 0.00 6.50 211.00 437.00 612.00 808.00 1117.00 926.00 504.50 282.50 52.50 14.00 4971.00
1942 0.00 0.00 82.00 419.00 561.50 736.00 1040.00 1050.00 714.00 328.00 12.00 0.00 4942.50
1943 0.00 1.00 86.00 406.00 492.50 740.00 1026.50 928.50 693.00 347.00 23.00 16.00 4759.50
1944 2.50 5.00 73.50 390.00 637.00 878.00 1066.50 956.00 731.50 432.50 73.50 0.00 5246.00
1945 15.00 11.00 114.50 275.00 644.50 797.50 1009.50 872.00 462.00 265.00 7.00 1.00 4474.00
1946 0.00 0.00 88.50 310.00 642.50 670.00 934.00 893.50 548.00 160.50 0.50 3.00 4250.50
1947 0.00 11.50 157.50 293.00 681.50 673.00 877.00 806.50 591.00 270.00 8.50 0.00 4369.50
1948 0.00 0.50 44.50 176.50 474.50 0.00 z 792.50 767.50 510.00 159.00 0.50 0.00 2925.50
1949 0.00 0.00 40.00 312.50 652.00 704.50 912.00 877.09 b 604.00 155.55 c 62.50 7.50 4327.64
1950 0.00 0.00 c 19.00 192.00 462.50 694.50 0.00 z 946.00 623.57 b 197.50 12.93 a 2.50 3150.50
1951 0.00 0.00 27.50 269.00 528.00 707.00 980.50 919.00 580.00 249.15 d 5.00 0.50 4265.65
1952 0.00 0.00 51.15 a 312.86 b 564.00 680.77 d 925.50 868.00 672.50 365.00 12.00 0.00 4451.78
1953 20.00 7.00 87.50 251.00 471.50 615.50 962.50 898.00 0.00 z 325.00 28.50 0.50 3667.00
1954 0.00 7.91 e 31.50 188.28 a 560.50 605.00 864.50 827.00 596.50 179.50 81.00 0.00 3941.69
1955 0.00 0.00 a 9.50 136.00 427.00 758.50 902.88 c 909.00 599.00 220.50 18.00 0.00 3980.38
1956 0.00 0.00 18.00 347.00 638.00 681.92 d 987.00 902.00 613.00 225.00 16.50 3.00 4431.42
1957 0.00 b 4.50 54.00 334.82 b 676.50 744.00 892.00 853.00 696.50 145.50 f 11.50 0.00 4266.82
1958 0.00 55.50 68.00 234.50 742.50 891.50 1025.50 1009.50 553.00 223.00 20.00 0.50 4823.50
1959 0.00 0.00 25.50 h 294.00 418.50 713.00 947.50 787.50 491.50 129.50 h 14.50 0.00 3666.50
1960 0.00 0.00 115.00 266.50 420.05 a 717.50 830.00 h 826.00 619.00 297.50 8.00 0.00 3269.55
1961 3.50 16.00 102.50 244.00 515.50 874.50 1051.50 1034.00 518.50 185.50 8.50 0.00 4554.00
1962 0.00 0.50 46.50 329.50 463.50 702.00 943.50 812.50 664.00 257.50 58.50 2.00 4280.00
1963 0.00 20.00 83.50 222.93 a 551.00 733.00 871.50 946.50 747.50 333.50 29.50 0.00 4538.93
1964 0.00 0.00 38.00 228.00 474.50 747.00 900.00 780.50 499.00 238.00 18.00 0.00 3923.00
1965 0.00 0.00 65.50 316.50 487.00 739.00 956.00 932.00 504.50 294.50 61.00 0.00 f 4356.00
1966 0.00 0.00 78.00 260.50 541.00 656.50 852.50 869.50 715.50 204.50 26.38 a 3.00 4207.38
1967 0.00 19.19 a 51.50 153.50 475.50 812.50 962.00 1029.00 728.50 252.00 34.50 1.00 4519.19
1968 0.00 28.50 99.50 181.00 509.50 708.00 1004.00 808.00 607.50 139.00 14.50 0.50 4100.00
1969 0.00 0.00 29.50 274.00 624.50 851.00 871.00 839.00 592.50 171.00 29.00 0.00 a 4281.50
1970 0.00 0.00 62.00 176.00 519.50 818.50 1001.00 893.00 451.50 188.50 9.31 a 0.00 4119.31
1971 0.00 0.00 16.50 227.00 582.00 624.50 933.50 955.50 459.50 221.50 11.00 0.00 4031.00
1972 0.00 8.50 93.50 142.50 554.50 692.00 840.50 888.00 429.00 209.00 20.50 2.77 c 3880.77
1973 0.00 0.00 82.50 272.00 529.50 666.50 940.50 868.50 578.50 214.50 5.00 0.00 4157.50
1974 13.00 4.00 57.50 264.00 396.00 741.35 d 857.15 a 900.00 635.00 224.50 20.00 1.00 4113.50
1975 0.00 0.00 a 2.00 191.50 491.50 647.50 1039.50 782.50 621.50 211.00 63.10 a 8.00 4058.10
1976 0.00 3.00 50.50 237.00 131.00 u 600.50 879.50 799.50 686.00 241.91 c 41.50 0.00 3539.41
1977 0.00 20.00 62.00 365.50 427.50 831.00 587.00 j 1034.50 449.00 g 207.50 20.50 0.00 2968.50
1978 0.00 0.00 143.12 a 265.50 439.50 741.21 a 948.50 857.50 543.00 228.50 13.00 0.00 4179.82
1979 0.00 b 7.00 111.00 238.50 584.50 778.00 1020.00 990.50 369.00 o 371.50 12.00 0.00 z 4113.00
1980 0.00 0.00 55.00 383.50 0.00 z 631.55 a 563.00 p 936.00 696.50 377.00 0.00 z 0.00 z 3079.55
1981 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
1982 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
1983 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
1984 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
1985 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
1986 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
1987 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
1988 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
1989 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
1990 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
1991 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 k 0.00
1992 9.50 i 19.50 j 174.00 i 374.00 640.50 951.50 931.50 987.00 611.00 231.50 i 20.50 0.00 4516.00
1993 0.00 k 0.00 54.50 238.00 735.50 718.00 782.50 911.00 701.50 0.00 z 24.50 k 1.00 i 4141.00
1994 0.00 l 6.00 k 174.50 431.00 602.00 737.00 1127.00 1035.00 825.50 239.00 j 0.00 p 0.50 m 4932.00
1995 0.00 k 22.00 i 0.00 z 301.00 667.50 0.00 z 1018.50 0.00 z 0.00 z 153.00 k 0.00 z 0.00 z 1987.00
1996 0.00 z 0.00 i 0.00 z 305.00 465.50 736.50 1083.50 1003.50 592.50 229.50 4.00 u 0.00 m 4416.00
1997 0.00 i 0.00 h 60.00 169.00 i 421.50 k 476.50 i 469.00 o 651.50 l 703.00 198.50 i 31.50 m 0.00 i 763.00
1998 0.00 l 9.00 82.50 i 335.00 167.00 u 522.50 j 860.50 i 711.50 k 565.00 j 173.00 k 26.50 n 0.00 m 344.00
1999 0.00 m 0.50 i 51.50 h 146.50 h 291.00 l 517.50 h 638.00 j 733.50 j 449.50 k 175.50 l 40.50 n 3.50 j 0.00
2000 0.00 k 0.00 i 45.50 i 266.50 j 386.00 i 547.00 i 657.50 j 750.00 h 401.00 k 196.00 j 0.00 z 0.00 l 0.00
2001 0.00 r 0.00 j 60.00 j 138.00 o 0.00 z 294.50 r 708.00 j 1078.69 d 367.00 p 179.00 i 56.50 k 0.00 k 1078.69
2002 0.00 k 2.50 i 23.00 k 289.00 318.00 k 530.00 k 720.00 k 586.00 l 709.50 258.50 55.50 5.50 1318.00
2003 0.00 2.00 141.50 294.50 563.74 d 852.00 0.00 z 1075.00 769.00 447.50 11.50 0.00 4156.74
2004 0.00 1.50 208.00 413.00 582.69 d 866.00 832.00 h 1080.00 677.50 364.50 14.50 0.00 4207.69
2005 0.00 12.50 179.50 349.20 e 649.00 17.50 z 0.00 z 0.00 z 103.00 x 360.00 7.20 e 0.00 g 1557.40
2006 3.50 0.00 117.28 a 251.50 g 608.24 b 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 729.02
Period of Record Statistics
MEAN 1.19 5.44 84.78 298.14 562.91 750.75 968.63 923.63 628.54 277.45 27.20 2.64 4496.32
S.D. 3.81 9.51 52.53 85.17 90.15 82.18 85.06 86.88 97.83 81.32 24.08 4.96 420.57
SKEW 3.75 3.10 0.85 0.33 0.07 0.27 -0.10 0.09 -0.03 0.29 1.41 2.70 0.52
MAX 20.00 55.50 211.00 551.00 742.50 951.50 1127.00 1080.00 829.00 447.50 114.50 25.00 5500.50
MIN 0.00 0.00 2.00 136.00 396.00 600.50 782.50 767.50 429.00 139.00 0.50 0.00 3880.77
NO YRS 54 56 56 60 56 55 51 57 55 53 54 51 38