WILLAPA HARBOR, WASHINGTON

Monthly Total Growing Degree Days

(459291)

Base Temperature = 50 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 197912
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
1895 0.00 z 0.00 z 42.00 83.00 137.00 303.50 404.00 376.50 139.00 226.50 9.50 0.00 z 1721.00
1896 12.00 18.50 2.50 5.50 109.50 295.50 473.00 0.00 z 0.00 z 0.00 z 53.00 8.50 978.00
1897 0.00 6.50 0.00 139.00 272.00 265.50 321.50 469.50 254.50 108.50 4.50 7.50 1849.00
1898 0.00 1.50 3.00 30.50 152.00 267.50 360.00 348.50 336.00 70.50 3.50 1.03 a 1574.03
1899 1.15 d 0.00 0.00 17.50 20.50 130.18 b 356.00 287.50 332.00 84.50 86.50 8.50 1324.33
1900 8.50 1.50 f 100.50 116.00 147.25 a 267.50 416.50 337.50 250.50 83.50 28.50 19.50 1775.75
1901 1.00 3.50 0.00 13.00 78.53 a 133.00 231.00 369.00 205.00 229.50 34.00 1.50 1299.03
1902 1.00 12.00 2.00 4.00 v 152.50 221.00 326.50 362.50 269.00 162.50 5.50 2.50 1517.00
1903 2.00 0.00 7.00 14.00 95.87 d 257.50 301.00 341.00 e 195.00 171.57 b 35.00 0.00 1419.94
1904 0.00 0.00 0.00 84.50 80.50 208.00 421.00 30.50 z 387.41 a 248.52 a 161.00 19.00 1609.93
1905 4.65 a 66.37 a 99.50 l 149.00 127.50 241.50 396.50 364.00 115.00 u 8.50 o 0.00 z 0.55 c 1350.07
1906 6.00 3.00 32.66 c 53.50 f 148.69 d 117.00 j 607.17 b 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 797.52
1907 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 266.00 k 360.63 a 38.00 0.60 e 399.23
1908 0.00 k 0.00 a 1.50 j 57.50 50.52 d 26.50 u 444.85 a 288.09 b 219.00 i 85.00 f 51.60 e 20.67 d 913.22
1909 0.00 0.00 a 12.50 10.86 a 138.50 273.50 325.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 760.86
1910 0.00 r 2.00 h 31.50 38.00 132.00 121.73 d 313.50 168.00 m 214.00 106.50 12.50 f 0.50 h 957.23
1911 1.50 k 0.00 15.50 14.50 51.50 139.50 324.50 277.93 b 166.50 102.00 12.00 0.00 1103.93
1912 1.50 0.00 1.50 3.50 0.00 z 235.50 354.00 357.00 264.50 59.50 1.00 0.00 1278.00
1913 0.00 4.00 0.00 15.50 53.00 169.00 0.00 z 339.50 256.50 62.00 6.00 0.50 906.00
1914 4.50 1.50 43.00 41.50 197.00 176.50 324.00 326.00 174.50 161.50 10.50 0.00 1460.50
1915 0.00 0.00 69.75 a 69.00 125.50 230.50 344.50 420.00 279.00 63.00 l 4.00 0.00 1542.25
1916 0.00 23.50 7.00 21.00 46.50 176.00 250.50 305.00 233.08 d 56.50 0.00 0.00 1119.08
1917 0.00 0.00 0.00 6.50 g 19.50 100.00 259.00 72.50 x 206.00 110.10 b 45.50 29.50 769.60
1918 8.00 0.00 2.00 27.50 15.00 208.00 332.50 374.50 373.50 158.50 0.00 z 0.00 z 1499.50
1919 0.00 z 0.00 z 0.00 z 50.00 99.50 208.00 348.50 379.50 295.00 99.00 18.50 1.00 1499.00
1920 7.00 0.00 3.00 9.50 46.50 186.50 350.00 399.50 223.50 78.50 3.50 0.00 1307.50
1921 0.00 2.00 2.00 27.00 71.50 196.00 240.50 302.00 165.00 106.50 14.50 1.00 1128.00
1922 0.00 0.00 0.00 9.50 122.00 232.00 310.00 341.50 292.50 132.50 0.00 0.00 1440.00
1923 0.00 0.00 28.00 44.50 102.50 250.50 380.50 481.00 320.00 146.00 20.50 0.00 1773.50
1924 4.00 0.00 1.50 37.00 159.00 226.50 324.00 316.00 272.50 76.00 2.00 5.50 1424.00
1925 0.00 1.00 3.00 49.50 172.50 226.00 356.50 361.50 292.50 107.00 12.00 15.50 b 1597.00
1926 1.00 10.00 38.00 j 199.82 b 216.50 0.00 z 459.83 a 450.61 c 267.41 a 192.20 a 41.00 f 3.00 m 1797.38
1927 0.00 j 0.00 4.50 h 49.44 c 86.50 324.50 417.50 427.00 323.00 129.00 f 22.00 o 6.41 b 1634.36
1928 6.56 e 0.50 35.00 23.50 g 218.50 225.00 e 313.00 g 355.00 216.00 75.50 11.50 0.00 c 1143.56
1929 0.00 0.00 1.00 13.00 89.00 217.50 363.50 392.00 333.50 147.00 0.00 0.00 1556.50
1930 0.00 9.50 38.50 100.00 57.50 195.00 281.50 410.50 262.50 84.00 25.50 1.00 1465.50
1931 19.38 c 1.04 a 10.00 104.50 231.00 249.50 440.00 382.00 247.50 107.47 a 12.00 1.50 1805.88
1932 0.00 11.00 9.00 68.50 88.00 237.41 a 238.81 d 338.50 278.00 132.50 24.00 1.55 a 1427.28
1933 0.50 0.00 1.03 a 36.00 27.00 196.50 299.00 417.47 a 176.67 c 143.00 20.00 5.17 a 1322.33
1934 1.00 23.50 61.50 165.00 216.50 235.50 302.25 a 387.50 238.50 151.00 14.50 0.00 1796.75
1935 19.50 7.00 1.00 52.24 a 112.50 234.50 316.00 376.50 292.50 128.00 0.00 0.00 1539.74
1936 0.00 0.00 1.50 87.00 0.00 z 0.00 z 379.50 454.00 285.50 230.50 14.50 4.50 1457.00
1937 0.00 7.50 38.50 6.00 140.00 289.00 370.50 383.50 338.00 242.50 21.43 b 2.58 a 1839.51
1938 0.00 16.50 11.00 44.00 99.50 181.00 350.00 220.50 294.00 116.50 8.50 2.50 1344.00
1939 1.00 0.00 22.00 90.50 153.50 199.00 382.00 441.00 309.50 146.00 45.00 a 28.50 1818.00
1940 22.50 0.50 36.00 77.00 224.00 343.50 373.55 a 464.50 368.00 213.26 b 0.00 10.50 2133.31
1941 5.00 10.00 85.00 88.00 136.50 192.00 0.00 z 0.00 z 248.50 153.00 47.50 2.00 967.50
1942 2.00 0.00 d 13.00 56.00 138.50 245.50 447.00 431.00 298.50 186.00 1.00 6.50 1825.00
1943 0.00 13.00 1.50 59.00 77.50 208.50 331.00 342.00 343.00 147.50 15.50 1.50 1540.00
1944 1.50 0.00 13.00 40.00 128.50 206.50 345.50 365.50 339.00 225.00 14.00 3.00 1681.50
1945 3.00 0.00 0.00 17.50 153.50 219.00 374.00 345.50 235.50 131.00 9.00 2.00 1490.00
1946 0.00 2.50 3.00 24.50 163.50 190.50 353.00 348.50 246.00 43.00 3.00 0.00 1377.50
1947 0.00 8.50 40.00 98.50 206.50 242.50 350.50 344.50 303.00 105.50 14.00 2.00 1715.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 325.34 a 332.00 314.50 259.00 76.50 0.00 0.00 1307.34
1949 0.00 4.00 5.00 30.00 161.00 194.50 295.50 334.50 295.50 39.50 54.50 0.50 1414.50
1950 0.00 0.00 0.00 9.50 60.50 253.00 323.50 380.50 249.81 d 53.50 18.50 16.00 1364.81
1951 0.00 6.00 2.00 57.00 114.00 256.00 341.50 329.50 258.00 120.00 7.24 a 0.00 1491.24
1952 1.00 0.00 1.00 23.00 117.50 166.00 338.00 344.00 335.50 230.50 17.68 b 8.00 1582.18
1953 1.00 f 0.00 16.00 22.00 102.09 b 189.50 275.50 f 364.00 221.00 f 161.00 22.00 0.00 c 876.59
1954 0.00 b 2.00 0.00 7.50 130.50 145.50 246.50 289.50 274.50 122.00 54.50 0.00 1272.50
1955 0.00 0.00 0.50 5.00 34.50 185.00 247.00 311.50 236.50 97.00 20.00 0.00 1137.00
1956 0.00 a 0.00 2.50 94.50 216.00 193.50 413.50 385.00 265.00 98.00 11.50 0.00 1679.50
1957 0.00 0.00 3.50 52.50 188.50 261.00 333.00 354.00 418.50 117.50 6.00 3.50 1738.00
1958 4.50 29.00 4.00 58.50 288.50 377.00 486.50 447.50 310.50 170.50 17.50 14.00 2208.00
1959 0.50 3.50 5.50 47.50 136.00 251.50 395.50 328.60 a 243.00 135.00 24.00 2.00 1572.60
1960 1.50 0.00 18.50 67.00 96.00 235.50 382.00 347.00 289.50 147.00 9.00 2.00 1595.00
1961 7.50 6.50 9.00 18.00 64.00 i 340.00 430.00 452.50 259.50 105.50 1.00 2.50 1632.00
1962 1.00 4.50 2.00 34.50 49.50 197.00 306.00 365.50 315.50 132.50 29.00 3.00 1440.00
1963 0.00 37.00 8.50 30.50 183.50 228.50 337.50 401.50 394.50 169.00 9.00 9.50 1809.00
1964 0.00 0.00 16.00 4.00 82.50 217.00 323.50 358.50 268.00 138.50 4.00 2.50 1414.50
1965 0.00 1.56 a 23.00 53.00 67.50 109.82 b 0.00 z 0.00 z 0.00 z 162.00 0.00 z 0.00 h 416.88
1966 0.00 1.50 19.00 40.00 139.50 244.00 354.00 403.00 348.00 110.00 5.00 5.50 1669.50
1967 1.00 0.00 0.00 1.00 141.00 367.00 464.00 570.00 402.50 125.00 19.00 0.00 2090.50
1968 4.50 21.00 9.00 29.50 163.00 249.00 440.00 369.50 309.50 79.00 21.00 0.00 1695.00
1969 0.00 0.00 19.00 29.00 235.00 390.00 356.00 337.50 282.00 67.50 13.50 0.00 1729.50
1970 3.00 6.50 4.00 4.50 144.00 346.50 387.00 387.50 205.00 84.00 23.00 0.50 1595.50
1971 1.00 3.00 1.50 39.00 150.00 150.50 373.50 457.50 238.50 124.50 2.50 0.00 1541.50
1972 0.50 0.00 24.50 14.00 194.50 268.00 439.00 467.50 225.00 74.00 9.00 6.50 1722.50
1973 2.00 1.50 0.00 27.50 176.50 240.00 362.00 273.00 318.50 73.50 8.00 0.00 1482.50
1974 2.50 0.00 9.50 36.00 82.50 245.50 341.00 410.00 394.00 114.50 9.50 1.00 1646.00
1975 0.50 0.50 1.00 10.50 140.00 206.50 377.50 307.42 a 326.00 79.50 8.50 5.96 e 1463.88
1976 0.00 0.00 2.00 25.50 150.50 208.45 a 361.00 354.50 327.50 127.00 35.50 0.00 1591.95
1977 2.00 2.50 0.00 68.00 61.50 282.00 366.00 477.00 233.50 56.50 7.00 3.00 1559.00
1978 1.00 18.00 48.00 55.00 179.91 c 379.50 437.00 446.00 321.00 200.50 1.00 0.00 2086.91
1979 0.00 0.00 24.00 79.50 185.43 d 255.00 471.50 487.73 a 381.00 181.50 4.50 6.00 2076.16
Period of Record Statistics
MEAN 2.35 5.23 14.23 47.18 128.25 231.71 359.91 374.46 280.86 130.53 18.62 4.05 1587.30
S.D. 4.46 10.21 20.21 39.37 60.25 61.13 64.93 59.92 59.72 57.24 23.26 6.38 244.70
SKEW 2.94 3.53 2.14 1.49 0.25 0.48 0.64 0.46 0.07 1.11 3.51 2.28 0.49
MAX 22.50 66.37 100.50 199.82 288.50 390.00 607.17 570.00 418.50 360.63 161.00 29.50 2208.00
MIN 0.00 0.00 0.00 1.00 15.00 100.00 231.00 220.50 139.00 39.50 0.00 0.00 1119.08
NO YRS 76 79 78 79 80 80 79 76 77 78 77 78 58