FORT ROSS, CALIFORNIA

Monthly Total Growing Degree Days

(043191)

Base Temperature = 50 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
1948 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
1949 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
1950 0.00 z 0.00 z 37.00 60.00 85.00 191.50 246.50 255.00 265.00 227.00 212.50 115.06 e 1694.56
1951 23.50 51.00 51.00 39.00 138.50 181.50 205.50 211.83 a 273.50 213.00 110.00 30.00 1528.33
1952 18.00 55.00 37.00 58.00 125.00 173.50 233.50 216.50 251.50 159.50 98.00 21.00 1446.50
1953 88.00 47.50 50.50 60.00 143.50 201.50 197.00 286.00 336.00 217.00 120.00 64.00 1811.00
1954 27.50 45.00 41.00 118.00 125.00 207.50 262.50 244.00 271.00 223.00 122.50 33.50 1720.50
1955 7.50 36.50 64.50 44.00 142.50 215.50 252.50 193.00 190.00 172.50 87.00 51.50 1457.00
1956 43.50 17.50 44.71 e 70.00 181.00 247.00 260.00 284.00 271.00 187.00 110.50 38.00 1754.21
1957 5.00 60.50 69.00 108.00 203.50 288.50 305.50 292.00 333.00 276.00 135.00 61.00 2137.00
1958 74.50 135.50 67.00 128.50 259.00 375.50 321.00 346.00 395.50 229.00 158.50 105.00 2595.00
1959 54.00 59.00 119.50 115.00 139.00 230.00 244.00 280.50 290.50 316.00 122.50 67.50 2037.50
1960 53.50 43.50 73.50 71.50 114.50 212.00 176.50 167.00 174.00 214.50 72.00 38.50 1411.00
1961 70.00 54.00 28.00 63.50 82.50 202.00 201.50 269.50 245.00 198.00 80.50 14.50 1509.00
1962 61.00 27.50 16.00 66.00 68.50 117.00 130.00 211.00 165.50 184.00 118.00 43.00 1207.50
1963 10.50 121.00 31.50 52.00 127.50 150.00 200.00 219.50 300.00 255.00 105.00 49.00 1621.00
1964 6.50 29.50 9.00 14.50 46.00 142.50 200.00 237.00 233.50 221.50 80.00 64.50 1284.50
1965 20.50 11.50 48.50 81.50 37.00 111.50 189.00 276.50 220.00 294.50 159.50 35.00 1485.00
1966 37.00 23.00 29.50 94.00 83.50 172.00 190.00 200.50 283.00 226.00 132.00 47.50 1518.00
1967 41.00 22.00 24.50 2.50 88.50 119.00 191.50 210.50 312.50 286.50 174.00 33.50 1506.00
1968 27.00 112.00 76.50 50.50 84.00 188.50 201.00 318.50 300.50 144.00 71.00 2.00 1575.50
1969 18.00 17.00 56.50 36.00 119.00 202.50 196.00 180.00 230.00 230.00 105.00 105.50 1495.50
1970 86.50 96.00 78.00 16.00 101.50 152.00 163.78 a 176.50 245.00 137.50 133.50 25.00 1411.28
1971 34.00 23.50 18.50 8.50 59.00 138.50 181.50 266.00 297.00 92.50 41.00 6.00 1166.00
1972 2.50 41.50 78.50 64.14 a 67.00 149.00 267.00 236.50 236.50 201.00 60.54 b 34.21 b 1438.38
1973 37.50 63.26 a 8.50 73.89 c 92.48 a 204.83 a 0.00 z 168.20 d 241.03 a 164.96 c 70.86 a 49.00 1174.52
1974 30.50 7.00 46.50 a 61.15 d 60.50 107.00 i 213.50 f 233.50 248.28 a 224.23 a 88.85 d 27.00 1027.51
1975 5.50 10.89 a 33.50 10.00 108.50 a 128.00 187.00 195.50 195.00 130.72 a 32.68 b 22.14 c 1059.43
1976 2.00 k 21.19 c 7.75 a 23.50 g 89.50 176.11 c 239.00 258.00 258.50 230.78 d 146.90 a 28.33 b 1456.06
1977 32.55 a 72.50 18.00 48.89 c 78.00 177.00 195.50 310.00 228.00 162.50 117.00 74.83 b 1514.77
1978 94.50 75.00 191.50 78.50 155.00 182.59 a 189.00 236.00 196.00 k 207.24 d 55.34 a 1.00 1465.67
1979 14.43 b 17.50 62.00 71.00 147.00 147.41 a 231.00 270.50 344.00 240.50 116.50 62.50 1724.34
1980 57.00 112.00 53.00 82.50 89.00 152.00 218.07 b 175.00 200.36 b 204.00 129.50 72.50 1544.93
1981 119.00 88.00 56.00 98.04 b 139.00 324.83 a 179.00 319.00 273.50 159.00 149.00 85.00 1989.36
1982 4.50 57.00 39.50 90.00 68.50 147.50 219.50 265.50 286.00 249.50 93.00 51.00 1571.50
1983 59.50 106.50 102.50 88.00 164.00 224.00 297.00 346.68 a 353.00 287.00 133.00 74.40 a 2235.58
1984 52.00 52.09 b 112.50 58.00 173.50 151.00 264.00 270.50 317.50 168.00 54.00 27.00 1700.09
1985 12.50 20.50 18.50 66.50 71.50 181.50 230.00 296.00 162.50 111.50 16.00 5.00 1192.00
1986 36.00 44.50 87.00 26.50 44.00 170.00 131.00 122.00 115.50 106.50 105.50 5.00 993.50
1987 3.50 37.50 0.00 z 54.00 67.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 28.00 4.00 194.00
1988 15.00 0.00 z 0.00 z 91.50 0.00 z 0.00 z 0.00 z 214.50 181.50 154.50 61.50 51.50 770.00
1989 0.00 z 11.00 28.00 126.50 111.50 189.50 240.00 229.00 181.00 163.00 93.50 f 46.00 1325.50
1990 30.50 17.50 26.00 90.50 120.00 187.00 228.50 267.00 281.50 194.27 a 86.00 12.50 1541.27
1991 7.75 a 32.50 14.50 26.00 49.50 144.50 153.00 217.00 157.00 164.50 57.50 19.00 1042.75
1992 19.00 94.50 105.40 a 139.50 192.20 a 197.00 298.00 249.00 245.50 271.00 97.00 18.00 1926.10
1993 14.50 54.44 a 79.00 69.00 170.50 230.50 173.00 156.50 j 163.50 186.50 93.50 19.50 1253.94
1994 21.00 8.50 51.00 46.07 b 97.00 141.50 140.50 221.00 222.00 166.50 5.17 a 10.00 1130.24
1995 83.00 92.50 83.18 a 76.00 123.00 211.00 225.00 k 272.00 307.50 275.00 143.00 88.00 1754.18
1996 48.50 123.00 124.50 121.50 152.50 164.50 251.50 238.50 229.50 177.50 i 122.00 62.50 1638.50
1997 67.00 48.50 85.00 98.50 221.50 230.50 249.50 279.00 g 393.33 c 226.00 209.50 82.50 1911.83
1998 101.00 49.50 80.00 60.50 136.00 219.00 244.50 0.00 z 169.50 i 152.00 j 51.00 i 22.50 913.00
1999 0.00 z 0.00 z 14.97 b 49.00 j 66.00 f 121.50 h 0.00 z 0.00 z 34.50 y 0.00 z 87.00 l 23.54 d 38.50
2000 27.00 f 64.50 j 0.00 z 145.38 d 0.00 z 0.00 z 122.50 l 0.00 z 192.00 k 160.50 g 42.50 f 34.00 h 145.38
2001 8.86 c 14.00 d 81.52 d 21.50 h 143.50 f 201.67 c 156.00 i 252.02 d 129.00 k 112.00 o 83.50 h 21.50 j 558.06
2002 14.00 k 27.50 m 48.50 83.00 34.00 o 144.00 143.50 k 253.00 116.00 h 27.00 j 0.00 z 21.00 q 528.50
2003 118.63 e 39.00 g 41.50 h 0.00 m 78.50 i 93.00 n 128.50 l 178.50 m 174.50 m 150.00 l 0.00 z 25.00 r 118.63
2004 35.00 f 3.00 p 88.50 g 82.00 h 164.50 160.00 j 255.15 e 136.00 r 173.50 l 192.00 91.80 e 17.50 p 703.45
2005 28.62 e 72.50 f 115.00 69.00 188.38 e 113.00 l 135.00 o 90.50 p 143.50 f 92.00 k 57.00 p 11.50 o 401.00
2006 34.00 o 26.00 k 6.50 h 64.00 106.29 c 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 170.29
Period of Record Statistics
MEAN 39.43 51.27 57.31 69.91 117.66 187.42 218.43 243.77 254.46 203.08 102.33 42.58 1563.38
S.D. 31.39 34.75 36.78 33.50 49.06 50.56 45.14 48.03 62.86 51.47 44.67 28.98 346.48
SKEW 0.91 0.77 1.10 0.14 0.58 1.45 0.15 -0.04 0.11 0.05 0.15 0.62 0.78
MAX 119.00 135.50 191.50 145.38 259.00 375.50 321.00 346.68 395.50 316.00 212.50 115.06 2595.00
MIN 2.50 7.00 7.75 2.50 37.00 111.50 130.00 122.00 115.50 92.50 5.17 1.00 993.50
NO YRS 49 48 51 52 51 48 45 47 46 47 48 50 36