BLOCK ISLAND STATE AP, RHODE ISLAND

Monthly Total Growing Degree Days

(370896)

Base Temperature = 40 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 201209
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
1927 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
1928 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
1929 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
1930 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
1931 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
1932 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
1933 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
1934 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
1935 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
1936 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
1937 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
1938 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
1939 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
1940 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
1941 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
1942 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
1943 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
1944 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
1945 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
1946 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
1947 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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 637.00 915.50 961.00 750.50 461.50 322.00 101.50 4149.00
1949 45.50 41.50 71.50 225.00 450.00 793.00 1024.00 973.00 712.00 599.50 212.00 103.00 5250.00
1950 96.50 1.50 30.50 129.00 347.00 674.50 896.33 b 893.00 653.00 514.50 268.00 64.50 4568.33
1951 43.50 25.50 34.50 240.00 499.50 680.50 951.00 914.50 757.00 505.50 185.00 105.50 4942.00
1952 44.00 8.50 17.00 239.50 451.50 769.00 1048.00 964.50 736.50 428.50 193.00 42.00 4942.00
1953 28.50 30.00 86.50 212.00 484.50 731.50 914.00 887.50 769.50 504.00 255.50 133.00 5036.50
1954 14.50 32.50 43.00 219.00 422.50 709.00 879.00 846.50 681.00 555.50 177.00 46.00 4625.50
1955 3.50 6.00 33.00 177.50 487.50 667.50 998.00 992.00 705.00 512.00 163.00 9.50 4754.50
1956 5.00 3.50 3.10 a 92.50 303.50 687.50 838.50 897.00 656.00 459.00 212.00 78.50 4236.10
1957 10.85 a 11.00 31.00 207.00 459.50 782.00 908.00 856.50 753.00 452.00 269.00 96.00 4835.85
1958 16.50 1.00 2.50 213.50 375.50 593.50 889.50 900.50 681.50 393.00 223.00 10.50 4300.50
1959 10.50 3.00 27.50 186.50 495.00 661.50 895.00 927.50 784.50 497.00 192.00 56.00 4736.00
1960 7.50 20.00 21.00 194.50 467.00 744.00 884.00 879.50 694.50 456.00 242.50 21.00 4631.50
1961 6.50 13.00 24.50 118.50 352.00 648.00 901.50 906.00 832.00 513.00 202.00 16.50 4533.50
1962 23.50 3.50 30.50 159.50 454.00 727.00 842.50 881.50 667.50 428.00 123.00 27.00 4367.50
1963 2.00 0.00 26.00 164.50 381.50 703.50 911.00 865.50 591.00 502.00 267.50 11.00 4425.50
1964 11.50 0.00 18.50 127.00 460.50 682.50 880.00 828.00 689.00 408.50 213.00 59.50 4378.00
1965 3.50 4.50 4.50 98.00 450.50 630.00 883.00 915.00 685.00 365.00 120.00 28.50 4187.50
1966 8.00 5.50 22.00 81.00 339.50 667.00 932.00 921.00 671.50 399.50 227.00 62.50 4336.50
1967 35.00 4.00 6.00 100.00 262.50 646.00 924.50 893.00 645.50 480.50 117.00 41.50 4155.50
1968 0.00 4.00 50.50 203.50 402.50 665.00 935.50 919.50 758.50 538.00 171.50 46.50 4695.00
1969 3.00 0.00 8.50 182.00 456.50 747.50 896.50 972.50 729.00 460.00 200.00 41.00 4696.50
1970 2.00 7.00 14.50 152.50 459.50 661.50 953.50 973.50 728.50 484.50 248.50 32.50 4718.00
1971 4.00 9.50 10.50 95.50 411.00 707.50 954.00 932.50 820.00 610.00 165.00 77.00 4796.50
1972 40.50 12.50 29.50 99.00 418.00 646.00 972.00 938.00 728.50 363.00 159.50 57.00 4463.50
1973 40.00 14.00 83.00 207.50 444.50 754.50 949.00 992.00 717.50 498.50 187.00 90.00 4977.50
1974 43.00 12.00 52.50 220.50 393.50 687.00 916.00 992.50 735.00 355.00 236.00 45.00 4688.00
1975 37.50 12.00 31.50 105.00 491.50 717.50 983.00 968.00 687.00 536.19 d 330.50 49.50 4949.19
1976 22.00 72.00 114.00 365.50 559.50 882.00 893.50 892.00 676.50 345.65 a 73.50 10.00 4906.15
1977 0.00 0.00 77.00 208.50 496.00 704.50 965.50 957.50 723.00 466.50 254.00 51.50 4904.00
1978 7.00 0.00 14.50 128.00 413.00 713.50 865.00 960.00 640.00 436.50 221.50 62.00 4461.00
1979 32.00 0.50 85.50 173.00 532.50 696.00 960.00 946.50 757.00 457.00 344.00 115.00 5099.00
1980 16.00 1.50 46.00 238.00 528.00 694.50 1014.00 988.00 744.00 395.00 113.50 30.50 4809.00
1981 0.00 28.50 22.50 190.50 463.50 748.50 953.50 876.50 672.50 368.00 175.50 22.50 4522.00
1982 15.00 7.50 24.00 146.00 455.00 645.00 978.00 848.50 664.50 452.00 271.00 156.50 4663.00
1983 26.50 15.50 60.50 222.50 439.00 765.50 977.50 925.00 811.00 504.00 275.00 66.50 5088.50
1984 5.50 50.50 12.50 179.00 490.50 780.00 921.50 1005.50 707.00 566.00 240.00 143.50 5101.50
1985 19.12 a 12.00 57.50 240.00 505.00 677.00 944.50 953.50 777.00 532.00 307.50 40.50 5065.62
1986 47.50 4.00 95.50 238.50 494.50 698.00 890.00 885.50 658.50 472.50 182.50 49.00 4716.00
1987 7.00 0.00 86.00 194.50 452.50 725.00 936.00 891.00 730.50 408.00 195.00 54.00 4679.50
1988 7.50 12.00 50.50 167.00 433.50 680.50 950.50 960.00 683.50 364.50 237.50 50.50 4597.50
1989 23.00 0.00 z 0.00 z 0.00 z 495.50 783.50 884.00 926.00 743.50 457.50 187.50 5.50 4506.00
1990 25.00 25.00 55.50 176.50 435.50 744.50 944.50 1033.50 611.50 570.00 238.00 97.13 a 4956.63
1991 19.00 41.50 82.50 237.50 566.50 775.50 935.00 900.60 b 717.50 500.50 222.00 94.00 5092.10
1992 24.50 11.91 a 43.00 135.00 407.50 674.50 877.50 874.00 693.50 357.00 177.41 a 35.13 a 4310.96
1993 23.50 0.00 35.50 187.00 518.50 744.00 1007.00 963.50 772.00 465.00 216.00 41.50 4973.50
1994 0.00 13.50 41.00 230.00 412.00 771.00 1080.00 0.00 z 714.00 0.00 z 301.00 75.00 3637.50
1995 78.50 15.00 63.00 181.50 437.10 a 715.00 0.00 z 0.00 z 703.00 0.00 z 0.00 z 13.43 a 2206.53
1996 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
1997 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
1998 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
1999 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
2000 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
2001 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
2002 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
2003 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
2004 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
2005 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
2006 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
2007 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
2008 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
2009 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
2010 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
2011 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
2012 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
Period of Record Statistics
MEAN 20.96 12.97 40.87 180.18 445.86 709.15 933.03 925.62 712.91 465.16 215.19 57.62 4708.48
S.D. 20.36 15.16 28.00 55.18 61.90 53.73 51.54 47.68 51.36 67.23 58.49 36.51 281.87
SKEW 1.60 1.91 0.71 0.40 -0.66 0.57 0.63 0.08 0.12 0.02 0.00 0.79 -0.17
MAX 96.50 72.00 114.00 365.50 566.50 882.00 1080.00 1033.50 832.00 610.00 344.00 156.50 5250.00
MIN 0.00 0.00 2.50 81.00 262.50 593.50 838.50 828.00 591.00 345.65 73.50 5.50 4155.50
NO YRS 47 46 46 46 47 48 47 46 48 46 47 48 44