PLAIN, WASHINGTON

Monthly Total Growing Degree Days

(456534)

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
1937 0.00 z 0.00 z 0.00 z 4.00 i 97.50 252.00 516.50 221.00 145.00 5.00 0.00 0.00 1237.00
1938 0.00 0.00 0.00 z 0.00 o 115.00 348.00 560.50 350.50 315.00 35.00 0.00 0.00 1724.00
1939 0.00 0.00 0.50 22.00 113.27 e 182.00 461.50 452.00 195.50 38.50 0.00 0.00 1465.27
1940 0.00 0.00 0.00 4.00 156.00 310.50 459.00 409.50 275.00 50.00 0.00 0.00 z 1664.00
1941 0.00 z 0.00 b 6.50 45.00 108.50 249.00 586.50 485.50 97.00 9.00 0.00 0.00 1587.00
1942 0.00 0.00 0.00 13.00 83.00 197.50 524.50 519.50 256.00 44.00 0.00 0.00 1637.50
1943 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 445.50 359.00 257.50 82.50 0.00 0.00 1144.50
1944 0.00 0.00 a 0.00 7.00 118.00 296.00 493.00 368.00 292.00 54.25 a 0.00 0.00 1628.25
1945 0.00 0.00 0.00 4.50 131.00 278.00 469.00 433.00 140.50 102.00 0.00 0.00 l 1558.00
1946 0.00 0.00 a 0.00 12.50 129.50 159.50 394.50 420.50 158.00 1.50 0.00 0.00 i 1276.00
1947 0.00 z 0.00 5.00 27.00 151.00 h 0.00 z 0.00 z 339.00 208.00 38.50 0.00 0.00 b 617.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 341.50 346.00 160.00 1.50 0.00 0.00 849.00
1949 0.00 0.00 c 0.00 8.00 169.50 147.00 370.00 347.50 173.00 1.00 0.00 0.00 1216.00
1950 0.00 0.00 0.00 0.00 58.12 c 233.50 474.50 466.50 227.50 0.00 0.00 p 0.00 1460.12
1951 0.00 0.00 0.00 0.00 z 0.00 z 249.00 443.50 385.50 184.00 22.00 0.00 z 0.00 z 1284.00
1952 0.00 a 0.00 2.50 36.50 138.95 c 180.50 440.50 434.50 269.00 93.00 0.00 0.00 1595.45
1953 0.00 0.00 o 0.50 f 4.50 79.00 118.50 394.14 c 400.00 205.00 21.00 0.00 0.00 1222.14
1954 0.00 0.00 0.00 a 0.00 a 93.52 a 155.00 355.35 d 303.00 174.50 4.50 0.00 0.00 1085.87
1955 0.00 0.00 0.00 0.00 22.22 a 252.50 381.50 403.50 210.52 a 8.50 0.00 0.00 1278.73
1956 0.00 0.00 a 0.00 m 28.89 c 260.73 c 167.50 537.50 473.50 200.00 22.50 0.00 0.00 1690.62
1957 0.00 0.00 0.00 g 24.50 m 224.50 279.50 357.65 d 295.00 271.00 14.50 0.00 b 0.00 h 1442.15
1958 0.00 0.00 0.00 2.00 278.00 418.50 615.00 0.00 z 0.00 z 0.00 z 0.00 0.00 1313.50
1959 0.00 0.00 0.00 3.62 a 57.00 222.50 464.00 356.50 138.10 a 18.50 2.59 a 0.00 g 1262.81
1960 0.00 j 0.00 b 7.00 i 0.00 z 99.64 c 0.00 z 562.50 0.00 z 148.50 34.00 0.00 a 0.00 d 844.64
1961 0.00 b 0.00 d 1.11 c 3.00 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1.11
1962 0.00 c 0.00 c 0.00 f 11.79 b 34.62 a 175.50 l 372.55 c 0.00 z 239.46 b 0.00 z 0.00 b 0.00 d 658.42
1963 0.00 c 0.00 e 0.00 a 0.00 i 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 l 0.00 k 0.00
1964 0.00 a 0.00 a 0.00 f 0.00 b 83.38 b 226.73 d 376.00 g 326.02 a 91.00 h 19.52 d 0.00 b 0.00 g 655.65
1965 0.00 0.00 b 0.00 a 26.79 b 81.52 d 270.00 c 492.90 a 445.33 e 154.44 c 63.60 b 0.00 a 0.00 p 1534.58
1966 0.00 l 0.00 c 0.00 c 4.50 173.08 a 227.07 a 323.00 f 463.28 d 365.89 b 30.00 0.00 a 0.00 c 1263.82
1967 0.00 c 0.00 b 0.00 a 0.00 110.50 371.38 a 492.68 c 617.79 c 262.00 i 34.50 h 0.00 z 0.00 z 1592.34
1968 0.00 z 0.00 z 0.00 z 0.00 z 89.50 243.50 516.50 348.00 235.00 8.00 0.00 0.00 1440.50
1969 0.00 0.00 o 0.00 3.50 189.50 418.00 406.00 370.50 212.00 10.50 0.00 0.00 1610.00
1970 0.00 0.00 0.00 0.00 105.00 382.00 497.50 446.50 109.50 30.50 0.00 0.00 n 1571.00
1971 0.00 0.00 0.00 1.50 140.50 157.50 463.50 544.50 91.50 66.00 0.00 0.00 1465.00
1972 0.00 0.00 0.00 0.00 156.50 271.00 372.50 483.00 140.50 33.00 0.00 0.00 1456.50
1973 0.00 0.00 0.00 10.50 131.50 243.50 481.00 412.00 225.00 7.50 0.00 0.00 1511.00
1974 0.00 0.00 0.00 2.50 51.00 307.50 402.00 454.00 273.50 18.50 0.00 0.00 1509.00
1975 0.00 0.00 0.00 0.00 87.00 212.50 536.50 334.00 232.50 23.00 0.50 0.00 1426.00
1976 0.00 0.00 0.00 0.50 98.50 176.00 405.00 376.50 275.00 50.00 0.00 0.00 1381.50
1977 0.00 0.00 0.00 70.50 45.00 371.50 392.50 565.50 161.50 16.50 0.00 0.00 1623.00
1978 0.00 0.00 0.00 8.00 73.00 353.50 498.58 a 415.92 a 160.50 40.00 0.00 0.00 1549.50
1979 0.00 0.00 0.00 31.50 133.00 296.50 512.00 486.00 296.00 96.00 0.00 0.00 1851.00
1980 0.00 0.00 0.00 44.50 137.00 221.50 462.50 357.00 213.00 64.00 0.00 0.00 1499.50
1981 0.00 0.00 0.00 40.00 110.00 164.00 429.00 579.00 251.50 10.50 0.00 0.00 1584.00
1982 0.00 0.00 0.00 1.00 91.00 359.50 449.00 430.50 209.50 22.50 0.00 0.00 1563.00
1983 0.00 0.00 0.00 18.00 190.50 253.00 348.50 504.50 144.50 17.50 0.00 0.00 1476.50
1984 0.00 0.00 0.00 1.50 53.00 222.50 467.00 478.00 142.50 35.50 0.00 0.00 1400.00
1985 0.00 0.00 0.00 14.50 173.00 295.00 622.50 419.50 112.50 23.00 0.00 0.00 1660.00
1986 0.00 0.00 1.00 11.50 165.00 384.50 333.50 563.50 127.00 30.00 0.00 0.00 1616.00
1987 0.00 0.00 0.00 52.00 155.00 373.45 a 438.00 443.50 317.50 62.00 2.00 0.00 1843.45
1988 0.00 0.00 0.00 38.00 110.00 237.50 426.00 426.00 219.00 124.50 0.00 0.00 1581.00
1989 0.00 0.00 0.00 17.50 79.50 316.00 404.50 404.50 220.00 39.00 9.50 0.00 1490.50
1990 0.00 0.00 3.00 31.50 53.50 244.00 533.00 492.50 327.50 6.00 4.50 0.00 1695.50
1991 0.00 0.00 0.00 8.50 41.50 178.50 446.00 494.00 290.50 52.00 0.00 0.00 1511.00
1992 0.00 0.00 3.50 36.00 214.50 430.00 454.50 475.00 162.00 49.00 0.00 0.00 1824.50
1993 0.00 0.00 0.00 0.00 260.00 227.00 266.00 394.00 251.50 62.00 0.00 0.00 1460.50
1994 0.00 0.00 0.50 39.50 153.50 220.50 542.50 439.00 315.00 17.00 0.00 0.00 1727.50
1995 0.00 0.00 0.00 4.50 164.00 252.50 458.50 277.00 281.00 2.00 0.00 0.00 1439.50
1996 0.00 0.00 0.00 13.00 36.50 213.50 489.50 428.50 162.00 42.00 0.00 0.00 1385.00
1997 0.00 0.00 0.00 1.00 129.50 194.50 400.00 496.00 239.50 7.50 0.00 0.00 1468.00
1998 0.00 0.00 0.00 30.50 154.50 285.50 604.00 522.50 365.00 22.50 0.00 0.00 1984.50
1999 0.00 a 0.00 0.00 17.00 71.50 202.50 391.00 500.00 176.00 10.50 0.00 0.00 1368.50
2000 0.00 0.00 0.00 20.50 88.00 267.00 414.50 417.00 170.00 8.00 0.00 0.00 1385.00
2001 0.00 0.00 0.00 24.50 139.00 185.00 449.00 498.00 274.50 17.00 0.00 0.00 1587.00
2002 0.00 0.00 0.00 8.50 69.50 331.50 496.00 413.50 185.00 15.50 0.00 0.00 1519.50
2003 0.00 0.00 4.00 0.50 115.50 341.50 529.00 496.50 260.50 96.50 0.00 0.00 1844.00
2004 0.00 0.00 0.00 25.00 112.00 360.50 530.00 535.00 166.00 56.00 0.00 0.00 1784.50
2005 0.00 0.00 1.00 50.00 182.00 210.00 485.00 493.50 169.50 30.00 0.00 0.00 1621.00
2006 0.00 0.00 0.00 18.50 122.50 294.00 555.50 459.50 259.50 28.00 0.00 0.00 1737.50
2007 0.00 0.00 0.00 9.00 123.50 253.50 567.50 421.50 229.00 3.50 2.00 0.00 1609.50
2008 0.00 0.00 0.00 0.00 161.50 214.00 453.00 413.00 196.00 25.50 0.00 0.00 1463.00
2009 0.00 0.00 0.00 16.00 138.50 362.00 599.00 538.00 286.50 2.00 0.00 0.00 a 1942.00
2010 0.00 0.00 0.00 19.50 62.50 215.00 514.50 429.50 201.00 43.00 0.00 0.00 1485.00
2011 0.00 0.00 a 0.00 0.00 45.00 196.00 384.00 507.00 278.50 11.50 0.00 0.00 1422.00
2012 0.00 i 0.00 b 0.00 26.50 94.50 119.00 i 560.07 a 544.80 d 292.50 b 36.68 a 2.68 b 0.00 1557.72
2013 0.00 a 0.00 a 0.00 b 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
Period of Record Statistics
MEAN 0.00 0.00 0.43 15.58 118.76 260.74 464.68 435.90 216.46 32.20 0.33 0.00 1555.38
S.D. 0.00 0.00 1.25 16.14 54.92 74.56 74.90 76.45 64.36 27.40 1.33 0.00 179.95
SKEW 0.00 0.00 3.27 1.12 0.72 0.45 -0.02 -0.19 0.19 1.25 5.29 0.00 0.21
MAX 0.00 0.00 6.50 70.50 278.00 430.00 622.50 617.79 365.89 124.50 9.50 0.00 1984.50
MIN 0.00 0.00 0.00 0.00 22.22 118.50 266.00 221.00 91.50 0.00 0.00 0.00 1085.87
NO YRS 69 72 66 66 70 68 71 71 71 71 71 64 48