MC MILLIN RSVR, WASHINGTON

Monthly Total Growing Degree Days

(455224)

Base Temperature = 50 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1941 0.00 z 0.00 z 48.50 105.50 175.50 294.00 569.00 410.00 201.50 84.00 22.50 3.00 1913.50
1942 0.00 0.00 6.00 52.50 139.50 198.50 486.50 509.50 287.00 162.00 2.50 1.03 a 1845.03
1943 0.00 4.50 1.50 84.50 88.00 211.03 a 384.00 292.50 g 311.00 121.93 a 1.00 0.00 1207.47
1944 2.50 0.00 9.00 38.50 129.00 229.50 399.50 366.00 319.50 157.50 13.00 0.50 1664.50
1945 0.50 2.50 0.00 19.50 182.50 214.00 426.00 386.00 193.50 116.50 6.50 0.00 1547.50
1946 0.00 2.00 2.00 28.50 187.50 215.50 403.00 394.00 255.50 29.00 0.00 4.00 1521.00
1947 0.00 7.00 35.00 70.18 b 222.50 264.50 380.50 366.50 270.00 109.00 2.00 0.00 1727.18
1948 0.00 0.00 12.00 22.00 98.50 333.62 a 362.50 362.50 241.50 69.50 0.00 0.00 1502.12
1949 0.00 0.00 9.00 53.00 210.00 224.50 336.00 394.00 300.00 23.50 41.00 0.00 1591.00
1950 0.00 0.00 1.00 21.50 84.00 267.00 380.50 433.50 253.50 63.00 18.50 10.50 1533.00
1951 2.00 7.00 1.50 49.00 134.50 289.50 417.50 342.50 290.50 96.50 0.00 1.50 1632.00
1952 0.00 0.00 0.50 60.00 141.00 186.00 390.50 418.50 294.50 136.50 8.00 0.00 1635.50
1953 4.50 0.00 6.50 40.00 122.50 157.50 364.25 a 397.00 288.50 105.50 13.00 0.00 1499.25
1954 0.00 0.00 0.00 18.00 128.00 155.50 267.00 308.50 243.62 a 63.50 13.50 0.00 1197.62
1955 0.00 0.00 2.50 12.00 55.00 212.50 259.00 289.50 198.00 56.50 12.50 0.00 1097.50
1956 0.00 0.00 3.00 48.00 212.00 194.50 412.00 382.00 227.00 67.50 3.50 0.50 1550.00
1957 0.00 0.00 1.00 46.00 217.00 277.00 312.50 324.00 349.50 70.78 a 0.50 0.00 1598.28
1958 0.00 7.50 0.00 25.00 273.50 383.50 555.50 480.50 275.50 98.50 7.50 10.00 2117.00
1959 0.00 0.00 0.00 37.50 106.50 266.50 432.50 364.50 203.79 a 75.00 12.50 0.50 1499.29
1960 0.00 2.50 14.00 54.50 94.00 245.50 428.50 367.50 206.50 98.00 4.00 0.00 1515.00
1961 5.50 6.00 8.00 29.00 127.50 336.50 452.00 498.00 211.50 79.50 0.00 1.00 1754.50
1962 0.00 6.50 1.50 52.50 42.50 217.50 356.00 388.00 276.00 91.50 2.50 4.00 1438.50
1963 0.00 20.50 7.00 25.00 159.50 226.00 325.00 385.00 351.50 134.00 3.00 0.00 1636.50
1964 4.00 0.00 10.00 8.00 88.00 200.50 359.50 328.50 186.00 76.00 4.00 2.00 1266.50
1965 0.00 0.00 0.00 49.50 73.00 239.00 432.00 424.50 176.50 129.00 18.00 1.00 1542.50
1966 0.00 0.00 15.50 28.00 119.00 235.00 339.50 388.00 300.50 70.00 3.50 0.00 1499.00
1967 0.00 0.00 1.00 6.50 132.00 342.00 429.00 531.50 377.00 96.00 2.50 1.00 1918.50
1968 7.00 4.00 21.50 28.00 141.50 249.00 438.00 347.50 251.00 41.00 5.00 0.00 1533.50
1969 0.00 0.00 16.00 31.50 199.00 382.00 370.00 340.00 259.50 39.50 13.50 2.50 1653.50
1970 0.00 0.00 4.00 8.50 105.50 331.50 407.00 392.00 177.50 36.00 9.50 0.00 1471.50
1971 1.50 0.50 0.00 23.50 139.00 142.00 415.50 496.00 191.50 82.00 1.50 0.00 1493.00
1972 0.00 2.50 19.50 18.00 169.50 231.00 397.00 422.50 182.00 40.00 3.50 1.00 1486.50
1973 0.00 0.00 0.50 24.50 151.00 228.50 384.50 294.00 257.50 44.00 1.50 1.50 1387.50
1974 4.50 0.00 3.50 14.00 76.00 239.00 352.50 422.50 358.00 79.50 7.50 0.00 1557.00
1975 1.50 0.00 0.00 0.00 116.00 216.50 427.50 329.00 263.00 61.50 18.00 5.00 1438.00
1976 0.00 0.00 0.50 33.50 118.00 169.00 369.50 325.00 275.00 68.00 15.50 0.50 1374.50
1977 5.00 2.50 0.00 78.50 69.00 277.50 343.50 530.00 171.00 j 36.50 0.50 2.50 1345.50
1978 0.00 0.00 18.00 30.00 86.00 345.00 407.00 391.00 200.00 102.50 5.50 0.00 1585.00
1979 0.00 0.50 19.00 48.50 143.50 266.00 424.00 383.50 303.50 99.00 0.00 3.00 1690.50
1980 0.00 9.00 1.50 83.50 116.50 201.00 380.50 352.00 235.00 95.00 36.00 15.00 1525.00
1981 7.00 3.00 9.50 45.50 112.50 186.50 346.50 496.00 275.00 29.50 25.50 0.00 1536.50
1982 0.00 1.00 2.00 23.00 94.50 324.50 319.00 383.00 243.00 61.00 0.00 0.00 1451.00
1983 0.00 9.50 1.00 32.50 188.50 219.50 327.50 392.00 189.50 18.00 14.50 0.00 1392.50
1984 11.00 0.00 6.50 22.00 67.50 189.50 385.50 377.50 223.00 65.00 0.00 0.00 1347.50
1985 0.00 0.00 0.00 25.00 130.00 231.00 513.00 386.50 156.00 47.50 9.00 0.00 1498.00
1986 0.00 19.48 e 21.00 19.00 145.00 325.50 301.50 513.00 201.00 73.50 3.00 0.00 1621.98
1987 0.00 3.00 17.00 76.55 a 182.90 a 312.93 a 392.00 414.50 305.50 113.50 17.50 0.00 1835.38
1988 0.00 0.00 7.50 45.00 139.00 228.50 395.00 400.50 240.50 139.00 14.50 0.00 1609.50
1989 0.00 0.00 0.00 74.50 131.00 328.00 357.50 382.50 299.50 72.50 15.50 4.50 1665.50
1990 0.00 0.00 4.00 51.50 116.00 269.50 496.50 476.50 320.00 40.50 15.00 0.00 1789.50
1991 2.00 9.50 1.00 22.00 81.50 188.50 443.00 473.50 281.00 91.50 12.00 0.00 1605.50
1992 8.00 8.00 10.50 115.00 227.50 389.00 433.00 455.00 232.00 98.50 2.00 0.00 1978.50
1993 0.00 0.00 4.00 22.00 249.50 259.00 298.50 415.50 275.00 98.00 0.00 2.50 1624.00
1994 0.00 0.00 30.50 50.00 173.50 228.00 476.00 442.00 327.50 35.00 0.00 7.50 1770.00
1995 3.00 9.00 13.50 41.00 208.00 294.00 475.50 0.00 z 339.00 68.50 38.50 6.00 1496.00
1996 3.50 4.50 17.00 59.50 68.00 239.00 477.50 448.00 184.50 77.50 2.50 0.00 1581.50
1997 5.50 2.50 15.50 21.50 244.00 268.00 410.50 509.50 331.50 61.00 9.50 0.00 1879.00
1998 1.00 0.00 10.50 40.00 116.50 272.00 519.50 470.00 325.00 83.00 4.50 0.00 1842.00
1999 0.00 0.00 a 1.50 49.50 65.10 a 210.50 345.50 348.50 f 239.48 a 41.50 28.50 0.50 982.08
2000 0.00 0.00 0.00 33.00 121.00 285.00 397.50 382.50 246.50 55.50 0.50 0.00 1521.50
2001 0.00 0.00 5.50 32.07 a 142.50 208.00 366.66 b 421.50 228.00 38.00 18.50 0.00 1460.72
2002 4.00 6.00 0.00 15.00 117.50 307.00 427.50 395.50 255.00 50.50 18.00 3.00 1599.00
2003 7.00 0.00 26.50 13.50 154.00 337.50 495.50 458.00 320.50 151.00 0.00 0.00 1963.50
2004 0.00 0.00 29.00 70.50 174.50 338.00 507.00 503.00 226.00 95.50 1.00 0.50 1945.00
2005 18.00 0.00 23.50 60.00 217.50 244.50 428.00 475.00 198.00 90.00 0.00 12.50 1767.00
2006 1.00 0.00 3.50 24.50 147.50 315.00 479.00 390.50 282.50 56.50 23.50 0.00 z 1723.50
2007 0.50 0.50 26.72 b 35.50 122.00 253.00 483.50 390.50 234.50 36.00 10.50 6.00 1599.22
2008 0.00 0.00 1.00 14.00 153.50 195.00 391.50 437.50 233.50 61.50 26.50 1.00 1515.00
2009 0.00 0.00 0.00 32.50 0.00 z 345.50 525.50 439.50 289.50 49.00 4.50 1.50 1687.50
2010 1.00 0.00 10.00 27.50 69.00 195.50 377.50 405.50 257.00 72.50 15.50 2.50 1433.50
2011 3.00 0.00 0.00 3.50 43.00 212.00 0.00 z 0.00 z 10.00 z 44.50 1.03 a 0.00 307.03
2012 0.00 0.00 0.00 50.50 114.50 187.50 376.00 452.50 264.00 73.50 21.21 a 0.52 a 1540.22
2013 0.00 0.00 b 0.55 c 2.00 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 0.55
Period of Record Statistics
MEAN 1.58 2.24 8.20 38.24 136.48 253.91 404.85 409.59 258.08 76.29 9.52 1.69 1592.14
S.D. 3.11 4.16 10.08 23.24 51.93 58.78 64.71 58.16 51.14 33.13 9.86 3.08 185.57
SKEW 2.86 2.54 1.59 1.02 0.47 0.45 0.28 0.23 0.16 0.58 1.22 2.53 0.36
MAX 18.00 20.50 48.50 115.00 273.50 389.00 569.00 531.50 377.00 162.00 41.00 15.00 2117.00
MIN 0.00 0.00 0.00 0.00 42.50 142.00 259.00 289.50 156.00 18.00 0.00 0.00 1097.50
NO YRS 72 72 73 72 71 72 71 68 70 72 72 71 64