ALTURAS RANGER STATION, CALIFORNIA

Monthly Total Cooling Degree Days

(040161)

Base Temperature = 65 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
1931 0.00 z 0.00 z 0.00 z 0.00 z 1.00 j 6.43 b 134.85 a 48.00 4.14 a 0.00 a 0.00 0.00 b 193.42
1932 0.00 0.00 0.00 a 0.00 0.00 a 37.00 43.50 71.00 0.00 a 0.00 0.00 a 0.00 151.50
1933 0.00 0.00 a 0.00 0.00 0.00 33.00 152.00 97.50 0.00 0.00 0.00 0.00 a 282.50
1934 0.00 a 0.00 b 0.00 a 0.00 c 2.07 a 15.00 139.00 124.50 37.50 0.00 0.00 0.00 318.07
1935 0.00 0.00 0.00 0.00 0.00 a 14.00 70.50 42.92 e 0.00 i 0.00 e 0.00 c 0.00 b 127.42
1936 0.00 a 0.00 a 0.00 c 0.00 e 0.00 e 29.46 b 134.85 a 60.85 d 0.00 c 0.00 e 0.00 a 0.00 b 225.17
1937 0.00 m 0.00 b 0.00 p 0.00 0.00 25.00 122.50 49.00 6.00 0.00 0.00 0.00 202.50
1938 0.00 0.00 0.00 0.00 0.00 8.50 90.00 4.00 0.00 0.00 0.00 0.00 102.50
1939 0.00 0.00 0.00 0.00 0.00 0.50 81.00 60.00 1.50 0.00 0.00 0.00 143.00
1940 0.00 0.00 0.00 0.00 0.00 63.50 18.08 a 54.50 2.50 0.00 0.00 0.00 c 138.58
1941 0.00 0.00 0.00 0.00 0.00 1.80 e 65.50 31.50 0.00 0.00 0.00 0.00 98.80
1942 0.00 a 0.00 0.00 0.00 0.00 4.00 83.00 50.00 8.50 0.00 0.00 0.00 145.50
1943 0.00 0.00 c 0.00 0.00 0.00 0.00 a 40.50 4.00 1.00 0.00 0.00 0.00 45.50
1944 0.00 0.00 0.00 0.00 0.00 0.50 23.50 6.50 6.00 0.00 0.00 0.00 36.50
1945 0.00 0.00 0.00 0.00 0.00 20.00 80.00 25.50 1.00 0.00 0.00 0.00 126.50
1946 0.00 0.00 0.00 0.00 0.00 1.50 83.00 70.50 1.00 0.00 0.00 0.00 156.00
1947 0.00 0.00 0.00 a 0.00 1.50 4.00 18.00 14.50 2.00 0.00 0.00 0.00 40.00
1948 0.00 0.00 a 0.00 0.00 0.00 10.50 28.00 5.00 0.00 0.00 0.00 0.00 43.50
1949 0.00 0.00 0.00 a 0.00 b 0.00 8.00 52.50 25.50 11.50 0.00 0.00 b 0.00 97.50
1950 0.00 b 0.00 0.00 0.00 0.50 21.50 116.00 73.37 a 31.67 c 0.00 0.00 0.00 243.03
1951 0.00 0.00 0.00 0.00 0.00 38.50 51.00 77.00 11.00 0.00 d 0.00 f 0.00 a 177.50
1952 0.00 0.00 c 0.00 0.00 d 0.00 b 13.27 d 127.50 52.70 a 13.45 a 0.00 f 0.00 0.00 e 206.92
1953 0.00 i 0.00 g 0.00 e 0.00 f 0.00 c 0.00 b 44.00 f 22.50 j 32.78 c 0.00 c 0.00 0.00 j 32.78
1954 0.00 b 0.00 b 0.00 b 0.00 c 7.75 a 37.00 64.00 16.00 0.00 b 0.00 0.00 0.00 124.75
1955 0.00 b 0.00 0.00 0.00 j 0.00 48.50 54.50 69.00 57.50 0.00 i 0.00 d 0.00 a 229.50
1956 0.00 0.00 0.00 i 0.00 1.00 22.00 134.00 12.50 2.50 0.00 0.00 0.00 a 172.00
1957 0.00 d 0.00 0.00 0.00 0.00 46.00 34.00 5.50 5.50 0.00 0.00 0.00 91.00
1958 0.00 0.00 0.00 0.00 1.00 25.50 128.50 130.00 10.50 0.00 0.00 0.00 295.50
1959 0.00 0.00 0.00 0.00 1.50 58.50 161.00 49.00 4.50 0.00 0.00 0.00 274.50
1960 0.00 0.00 0.00 a 0.00 0.00 30.50 158.50 55.50 3.00 1.00 0.00 0.00 248.50
1961 0.00 0.00 0.00 0.00 0.00 a 95.00 97.00 111.00 0.00 0.00 0.00 0.00 303.00
1962 0.00 0.00 0.00 0.00 0.00 13.50 71.00 37.50 9.00 0.00 0.00 0.00 131.00
1963 0.00 0.00 0.00 0.00 13.50 25.50 12.50 37.00 23.00 0.00 0.00 0.00 111.50
1964 0.00 0.00 0.00 0.00 0.00 11.00 73.00 32.50 0.00 0.00 0.00 0.00 116.50
1965 0.00 0.00 0.00 0.00 0.00 11.50 30.00 f 40.00 3.00 0.00 b 0.00 e 0.00 c 54.50
1966 0.00 0.00 0.00 0.00 0.50 24.50 33.67 b 131.00 9.23 d 0.00 c 0.00 i 0.00 g 198.90
1967 0.00 c 0.00 0.00 0.00 b 1.50 36.00 119.00 168.00 10.00 0.00 0.00 0.00 334.50
1968 0.00 0.00 0.00 0.00 0.00 42.00 156.50 49.50 7.00 0.00 0.00 0.00 255.00
1969 0.00 0.00 0.00 0.00 0.00 27.50 73.00 35.50 11.00 0.00 0.00 0.00 147.00
1970 0.00 0.00 0.00 0.00 0.00 61.50 75.50 25.50 0.00 0.00 0.00 0.00 162.50
1971 0.00 0.00 0.00 0.00 0.00 0.00 118.00 126.50 2.50 0.00 0.00 0.00 247.00
1972 0.00 0.00 0.00 0.00 5.50 22.50 87.50 85.00 9.50 0.00 j 0.00 d 0.00 210.00
1973 0.00 0.00 0.00 0.00 0.50 23.50 110.00 50.12 a 0.00 0.00 b 0.00 0.00 q 184.12
1974 0.00 a 0.00 0.00 0.00 0.00 17.50 62.50 41.00 0.50 0.00 z 0.00 c 0.00 k 121.50
1975 0.00 b 0.00 0.00 0.00 0.00 0.50 92.00 11.50 14.00 0.00 0.00 c 0.00 118.00
1976 0.00 0.00 0.00 0.00 1.00 8.00 67.74 d 4.50 9.00 0.00 o 0.00 0.00 90.24
1977 0.00 0.00 0.00 0.00 0.00 63.50 57.50 119.50 6.50 0.00 0.00 0.00 247.00
1978 0.00 0.00 0.00 0.00 0.00 6.50 65.50 95.00 1.50 0.00 0.00 0.00 a 168.50
1979 0.00 0.00 0.00 0.00 0.00 15.56 c 84.50 50.50 4.00 0.00 g 0.00 0.00 d 154.56
1980 0.00 c 0.00 a 0.00 n 0.00 0.00 4.50 84.00 14.50 2.50 0.00 0.00 0.00 105.50
1981 0.00 0.00 a 0.00 0.00 0.00 e 27.32 b 72.00 81.50 21.50 0.00 0.00 0.00 a 202.32
1982 0.00 0.00 0.00 0.00 3.10 a 20.00 44.50 62.00 8.50 0.00 0.00 0.00 138.10
1983 0.00 0.00 0.00 0.00 10.00 0.00 27.00 80.50 0.00 0.00 0.00 0.00 117.50
1984 0.00 0.00 0.00 0.00 1.50 7.50 116.00 36.00 10.50 0.00 0.00 0.00 171.50
1985 0.00 0.00 0.00 0.00 0.00 54.50 141.00 30.00 1.50 0.00 0.00 0.00 227.00
1986 0.00 0.00 0.00 0.00 14.50 60.00 b 37.00 93.00 15.00 0.00 0.00 0.00 219.50
1987 0.00 0.00 0.00 0.00 5.68 a 61.50 40.00 55.50 13.50 0.00 0.00 0.00 176.18
1988 0.00 0.00 0.00 0.00 0.00 63.50 166.00 86.00 31.00 0.00 0.00 0.00 346.50
1989 0.00 0.00 0.00 0.00 0.00 4.50 42.00 26.00 0.50 0.00 0.00 0.00 73.00
1990 0.00 0.00 0.00 0.00 0.00 16.50 141.50 99.00 3.50 0.00 0.00 0.00 260.50
1991 0.00 0.00 0.00 0.00 0.00 3.00 55.50 49.00 14.50 0.00 0.00 0.00 122.00
1992 0.00 0.00 0.00 0.00 10.00 69.50 75.00 88.00 0.00 0.00 0.00 0.00 242.50
1993 0.00 0.00 0.00 0.00 0.00 7.50 4.50 48.50 15.00 0.00 0.00 0.00 75.50
1994 0.00 0.00 0.00 0.00 0.00 16.50 160.50 34.00 1.00 0.00 0.00 0.00 212.00
1995 0.00 0.00 0.00 0.00 0.00 17.50 45.50 39.00 3.00 0.00 0.00 0.00 105.00
1996 0.00 0.00 0.00 a 0.00 0.00 13.50 175.50 80.00 0.00 0.00 0.00 0.00 269.00
1997 0.00 0.00 0.00 0.00 0.00 8.50 53.00 48.00 3.00 0.00 0.00 0.00 112.50
1998 0.00 0.00 0.00 0.00 0.00 0.00 116.00 93.50 51.50 0.00 0.00 0.00 261.00
1999 0.00 0.00 0.00 b 0.00 a 0.00 11.00 43.00 34.00 1.00 0.00 a 0.00 a 0.00 89.00
2000 0.00 0.00 0.00 a 0.00 c 5.17 d 47.00 48.50 36.74 d 0.50 0.00 c 0.00 0.00 b 137.91
2001 0.00 b 0.00 0.00 0.00 c 2.00 21.00 78.00 68.50 0.50 0.00 0.00 a 0.00 170.00
2002 0.00 0.00 0.00 0.00 2.00 34.50 177.50 57.50 5.50 0.00 0.00 0.00 277.00
2003 0.00 0.00 0.00 0.00 6.89 d 44.00 186.00 58.79 b 16.00 0.00 c 0.00 e 0.00 z 311.68
2004 0.00 0.00 0.00 0.00 0.00 10.50 114.50 77.00 0.00 c 0.00 0.00 0.00 g 202.00
2005 0.00 e 0.00 0.00 0.00 d 0.00 3.50 120.00 i 55.50 0.00 d 0.00 k 0.00 h 0.00 59.00
2006 0.00 f 0.00 e 0.00 a 0.00 b 2.50 46.03 a 72.00 l 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 48.53
Period of Record Statistics
MEAN 0.00 0.00 0.00 0.00 1.35 23.72 85.97 56.34 8.03 0.01 0.00 0.00 174.56
S.D. 0.00 0.00 0.00 0.00 3.06 21.18 45.96 34.96 11.49 0.12 0.00 0.00 81.57
SKEW 0.00 0.00 0.00 0.00 2.79 1.03 0.38 0.74 2.39 8.06 0.00 0.00 0.28
MAX 0.00 0.00 0.00 0.00 14.50 95.00 186.00 168.00 57.50 1.00 0.00 0.00 346.50
MIN 0.00 0.00 0.00 0.00 0.00 0.00 4.50 4.00 0.00 0.00 0.00 0.00 36.50
NO YRS 72 74 72 73 75 76 72 74 74 68 72 69 56