SEQUIM, WASHINGTON

Monthly Total Growing Degree Days

(457538)

Base Temperature = 50 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 198009
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
1916 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 207.50 i 283.17 e 310.53 b 14.00 z 13.50 h 0.00 c 0.00 593.71
1917 0.00 0.00 0.00 3.50 63.03 a 139.00 99.00 s 343.38 e 197.00 67.17 a 19.50 0.50 833.08
1918 2.00 i 0.00 e 1.50 40.00 93.50 289.50 337.50 361.67 d 323.04 b 66.50 g 0.00 z 0.00 z 1446.70
1919 0.00 z 0.00 z 4.00 7.50 36.17 a 0.00 z 0.00 z 252.65 a 155.50 i 22.50 h 6.00 j 0.00 b 300.32
1920 0.00 b 0.00 0.00 0.00 m 5.00 39.00 w 313.00 146.00 n 123.10 a 20.00 3.10 a 0.00 464.21
1921 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 182.68 b 95.00 p 234.57 a 53.00 q 49.94 d 4.66 a 0.00 d 471.84
1922 0.00 a 0.00 0.00 b 0.50 j 0.00 z 0.00 z 274.50 289.50 181.00 56.00 0.00 a 0.00 a 801.00
1923 0.00 b 0.00 c 0.00 a 15.00 b 74.92 a 203.79 a 309.43 d 364.80 c 220.86 a 53.50 2.59 a 0.00 a 1244.89
1924 0.00 0.00 0.00 10.50 86.00 72.50 136.00 78.00 r 145.00 52.59 c 0.00 0.53 b 503.12
1925 0.00 0.00 0.00 8.00 123.45 c 193.33 c 313.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 637.78
1926 0.00 0.00 2.00 71.00 96.10 a 311.67 c 326.00 183.00 k 71.00 h 90.42 a 2.50 0.00 899.68
1927 0.00 0.00 0.00 6.50 34.00 227.50 328.00 321.00 178.00 55.50 1.50 0.00 b 1152.00
1928 0.00 0.00 4.81 b 6.50 139.00 216.50 0.00 z 0.00 z 0.00 z 11.00 6.96 b 0.00 384.77
1929 0.00 0.00 a 0.00 4.82 b 41.00 201.11 c 299.50 275.00 211.50 49.00 l 0.00 0.00 1032.93
1930 0.00 b 1.50 h 2.00 26.38 a 23.50 144.31 a 223.41 b 273.50 189.00 21.50 0.52 a 0.00 b 904.12
1931 0.00 a 0.00 3.62 a 52.24 a 153.50 186.67 c 271.50 f 264.07 d 180.00 b 29.40 b 0.00 0.00 869.50
1932 0.00 a 0.00 12.40 a 16.50 41.33 d 200.50 195.62 b 275.79 b 163.27 d 56.00 12.86 b 0.00 974.27
1933 0.00 0.00 a 0.00 b 4.44 c 33.98 e 147.22 c 240.52 b 360.12 a 112.24 a 61.48 a 8.79 a 0.50 969.30
1934 0.00 0.00 b 4.43 c 89.00 114.91 b 201.11 c 250.30 d 339.89 c 174.00 66.00 13.00 0.00 1252.64
1935 1.03 a 0.00 d 3.10 a 1.73 d 48.57 a 215.69 a 302.77 a 313.62 a 36.00 y 61.50 0.00 0.00 l 948.00
1936 0.00 0.00 0.00 56.00 137.50 255.58 d 314.50 356.50 155.00 116.00 1.50 0.00 1392.58
1937 0.00 0.00 2.50 2.50 61.50 207.00 187.50 0.00 z 0.00 z 0.00 z 15.00 6.00 482.00
1938 0.00 0.00 0.50 39.00 142.00 272.68 b 403.50 313.00 355.50 77.00 4.50 3.00 1610.68
1939 1.00 0.00 9.50 51.50 133.00 201.00 355.00 475.00 0.00 z 103.00 12.00 8.50 1349.50
1940 4.50 0.00 14.50 82.50 196.50 293.00 353.50 415.50 307.00 69.00 j 0.00 3.00 1670.00
1941 0.00 16.50 33.00 61.00 f 152.00 258.00 479.00 379.00 179.00 59.00 13.00 0.50 1569.00
1942 0.00 0.00 4.00 24.50 144.50 263.50 416.00 419.50 235.00 93.00 1.50 0.00 1601.50
1943 0.00 0.00 0.50 52.50 71.00 195.00 293.50 297.50 270.50 103.50 1.00 1.00 1286.00
1944 0.00 0.00 0.00 17.00 14.00 z 0.00 z 0.00 z 307.86 b 272.50 127.50 6.50 2.00 733.36
1945 1.00 0.50 2.00 8.00 149.00 193.50 299.00 294.50 190.00 109.00 4.00 0.00 1250.50
1946 0.00 0.00 0.00 7.50 164.30 a 183.00 329.50 312.00 188.00 23.50 0.00 0.00 1207.80
1947 0.00 1.12 c 3.50 34.50 170.00 223.97 a 319.00 309.50 220.50 45.00 2.00 0.00 1329.09
1948 0.00 0.00 0.00 6.50 89.00 303.00 311.00 287.00 201.50 26.00 0.00 0.00 1224.00
1949 0.00 0.00 2.00 11.00 166.50 175.00 258.00 328.08 a 246.00 10.50 9.50 0.00 1206.58
1950 0.00 0.00 c 0.00 6.00 41.00 247.00 285.00 319.50 213.00 27.00 1.00 0.00 1139.50
1951 0.00 0.00 0.00 28.50 108.50 266.50 321.00 312.50 199.50 57.00 0.00 0.00 1293.50
1952 0.00 0.00 0.00 13.00 85.50 129.83 a 292.00 331.00 264.00 111.60 a 1.00 0.50 1228.43
1953 0.00 0.00 a 0.00 15.00 78.50 135.52 a 307.00 366.50 234.50 66.00 16.00 0.00 a 1219.02
1954 0.00 a 0.00 a 0.00 2.00 73.50 103.50 241.28 a 245.50 242.59 a 34.00 20.69 a 0.00 k 963.06
1955 0.00 l 0.00 p 0.00 1.00 44.00 183.50 229.50 280.07 b 234.00 27.00 0.00 0.00 a 999.07
1956 0.00 a 0.00 0.00 32.50 179.00 117.50 359.60 a 329.00 196.55 a 100.75 a 11.50 0.00 1326.40
1957 0.00 0.00 0.00 a 24.31 a 77.50 t 251.00 293.00 315.50 360.52 a 65.62 a 0.00 b 0.00 a 1309.94
1958 0.00 10.00 0.00 16.50 226.50 392.00 506.33 a 424.00 253.50 95.00 2.00 5.50 1931.33
1959 0.50 0.00 0.00 16.03 a 95.00 252.50 398.00 311.50 202.00 53.00 3.50 0.00 a 1332.03
1960 0.50 0.00 4.50 38.50 87.00 212.00 393.50 340.00 222.00 93.00 0.50 1.00 1392.50
1961 7.50 0.50 6.00 15.50 120.00 315.50 443.00 434.50 214.50 52.50 0.00 0.00 1609.50
1962 0.00 4.50 0.00 28.00 49.50 205.00 311.50 327.50 253.50 72.50 5.00 8.00 1265.00
1963 0.00 10.50 5.00 11.38 a 173.50 235.00 308.00 362.00 338.50 119.00 1.00 4.00 1567.88
1964 0.00 0.00 2.50 0.50 78.03 b 201.50 324.00 331.00 210.00 68.00 4.00 0.00 1219.53
1965 0.00 0.00 8.50 36.50 66.00 224.00 378.50 386.98 a 196.00 116.00 9.00 0.00 1421.48
1966 0.00 5.00 10.00 16.00 111.00 214.50 307.50 374.50 299.00 63.50 2.00 1.00 1404.00
1967 0.50 0.00 3.00 0.50 116.50 333.50 364.50 466.50 344.00 80.50 3.50 0.00 1713.00
1968 6.50 0.50 5.50 15.00 157.00 220.00 429.00 334.50 239.50 36.00 3.00 0.00 1446.50
1969 0.00 0.00 6.50 12.50 202.00 370.50 356.00 308.50 244.00 53.50 0.50 0.00 1554.00
1970 1.00 0.00 2.50 6.50 88.00 298.50 357.50 341.50 173.00 49.00 3.00 0.00 1320.50
1971 0.00 0.00 0.50 27.50 127.50 157.50 392.50 459.50 218.50 88.00 1.00 0.00 1472.50
1972 0.00 0.00 2.50 11.50 200.00 224.50 411.00 434.50 186.00 81.00 5.50 0.00 1556.50
1973 0.00 0.00 0.50 17.00 153.50 215.50 396.28 a 297.50 281.00 30.50 1.50 0.50 1393.78
1974 0.00 0.00 5.00 16.00 69.50 243.46 d 333.00 377.50 324.50 70.50 1.00 0.00 a 1440.46
1975 0.00 0.00 j 0.00 6.50 111.50 220.50 376.50 305.00 290.00 53.00 11.00 0.00 o 1374.00
1976 0.00 1.50 0.00 47.50 99.50 192.50 331.24 d 315.54 c 313.50 71.00 0.00 z 0.00 1372.28
1977 2.00 1.50 0.50 56.00 91.00 260.00 310.00 467.50 211.00 23.25 a 11.00 2.50 1436.25
1978 2.67 b 0.50 12.83 b 19.00 111.00 346.50 413.00 378.00 209.00 101.00 0.00 0.00 1593.50
1979 0.00 0.00 a 5.34 b 41.50 141.57 a 209.48 a 396.59 b 393.18 a 354.50 112.00 0.00 b 1.50 1655.66
1980 0.00 b 5.18 a 0.00 54.50 125.55 a 182.50 302.50 335.83 a 223.39 b 0.00 z 0.00 z 0.00 z 1229.45
Period of Record Statistics
MEAN 0.48 0.98 3.03 23.16 106.59 221.98 327.46 340.37 231.50 65.19 4.41 0.83 1375.25
S.D. 1.43 2.95 5.19 20.96 50.51 62.86 69.01 56.86 59.60 30.57 5.38 1.89 198.93
SKEW 3.72 3.71 3.51 1.26 0.20 0.37 -0.03 0.64 0.52 0.17 1.34 2.75 0.38
MAX 7.50 16.50 33.00 89.00 226.50 392.00 506.33 475.00 360.52 127.50 20.69 8.50 1931.33
MIN 0.00 0.00 0.00 0.50 5.00 72.50 136.00 234.57 112.24 10.50 0.00 0.00 969.30
NO YRS 60 59 63 60 60 60 59 59 56 57 60 60 39