LAKE ARROWHEAD, CALIFORNIA

Monthly Total Cooling Degree Days

(044671)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201111
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
1941 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 70.00 2.50 0.00 0.00 0.00 72.50
1942 0.00 0.00 0.00 0.00 4.00 38.00 226.50 175.00 16.50 0.50 0.00 0.00 460.50
1943 0.00 0.00 0.00 0.00 8.50 13.00 128.50 129.00 94.50 11.50 0.00 0.00 385.00
1944 0.00 0.00 0.00 0.00 0.00 12.00 58.50 133.00 80.00 0.00 0.00 0.00 283.50
1945 0.00 0.00 0.00 0.00 0.00 35.00 216.00 172.50 130.50 0.00 0.00 0.00 554.00
1946 0.00 0.00 0.00 0.00 0.00 6.50 100.50 131.00 39.00 0.00 0.00 0.00 277.00
1947 0.00 0.00 0.00 0.00 11.50 19.00 171.50 111.00 90.00 1.00 0.00 0.00 404.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 64.00 103.00 121.00 0.00 0.00 0.00 288.00
1949 0.00 0.00 0.00 0.00 0.00 49.00 121.50 107.50 116.00 2.50 0.00 0.00 396.50
1950 0.00 0.00 0.00 0.00 0.50 40.00 146.50 163.50 43.50 11.50 0.00 0.00 405.50
1951 0.00 0.00 0.00 0.00 8.00 25.50 157.50 101.50 78.50 0.00 o 0.00 0.00 371.00
1952 0.00 0.00 0.00 0.00 0.00 0.00 125.50 136.00 84.50 4.50 0.00 0.00 350.50
1953 0.00 0.00 0.00 0.00 0.00 9.50 175.50 116.00 81.00 3.00 0.00 0.00 385.00
1954 0.00 0.00 0.00 0.00 6.00 32.00 167.50 44.50 34.50 1.50 0.00 0.00 286.00
1955 0.00 0.00 0.00 0.00 0.00 21.50 66.00 125.50 121.50 0.00 0.00 0.00 334.50
1956 0.00 0.00 0.00 b 0.00 0.00 35.50 88.00 65.00 97.00 0.00 0.00 0.00 285.50
1957 0.00 0.00 0.00 0.00 0.00 47.50 101.50 99.50 21.50 0.00 0.00 0.00 270.00
1958 0.00 0.00 0.00 0.00 0.00 18.50 82.50 140.00 69.00 1.00 0.00 0.00 311.00
1959 0.00 0.00 0.00 0.00 0.00 49.00 203.50 87.00 50.00 10.50 0.00 0.00 400.00
1960 0.00 0.00 0.00 0.00 0.00 93.50 152.50 152.50 92.50 0.00 0.00 0.00 491.00
1961 0.00 0.00 0.00 0.00 0.00 128.28 a 190.50 103.00 15.50 7.00 0.00 a 0.00 444.28
1962 0.00 z 0.00 0.00 0.00 0.00 29.50 83.50 159.50 80.50 3.00 0.00 0.00 356.00
1963 0.00 0.00 0.00 0.00 0.00 2.00 120.50 90.00 78.50 5.00 0.00 0.00 296.00
1964 0.00 0.00 0.00 0.00 0.00 29.00 127.50 126.50 23.00 36.00 0.00 0.00 342.00
1965 0.00 0.00 0.00 0.00 0.00 0.00 81.00 106.50 4.00 18.50 0.00 0.00 210.00
1966 0.00 0.00 0.00 0.00 1.00 40.00 106.00 156.00 53.00 0.00 0.00 0.00 356.00
1967 0.00 0.00 0.00 0.00 8.50 26.50 193.00 214.50 14.50 0.00 0.00 0.00 457.00
1968 0.00 0.00 0.00 0.00 4.00 48.00 107.00 63.00 57.50 0.00 0.00 0.00 279.50
1969 0.00 0.00 d 0.00 0.00 4.50 5.50 135.50 250.00 94.00 0.00 0.00 0.00 489.50
1970 0.00 0.00 0.00 0.00 7.23 a 89.00 240.00 225.00 28.00 0.00 0.00 0.00 589.23
1971 0.00 0.00 0.00 0.00 0.00 30.00 160.00 131.50 98.00 4.50 0.00 0.00 424.00
1972 0.00 0.00 0.00 0.00 0.00 20.00 237.00 123.50 17.50 2.50 0.00 0.00 400.50
1973 0.00 0.00 0.00 0.00 13.00 105.00 138.50 125.50 9.00 0.00 0.00 0.00 391.00
1974 0.00 0.00 0.00 0.00 8.00 88.00 121.50 78.53 a 75.50 5.50 0.00 0.00 a 377.03
1975 0.00 0.00 0.00 0.00 0.00 9.50 120.00 116.00 42.00 0.00 0.00 0.00 287.50
1976 0.00 0.00 0.00 0.00 5.00 43.00 108.50 66.00 17.50 0.00 0.00 0.00 a 240.00
1977 0.00 0.00 0.00 0.00 0.50 49.50 136.00 147.50 63.50 4.50 0.00 0.00 401.50
1978 0.00 0.00 0.00 0.00 0.00 75.00 167.00 112.50 36.50 5.50 0.00 0.00 396.50
1979 0.00 0.00 0.00 0.00 0.00 112.50 164.00 92.50 92.50 0.00 0.00 0.00 461.50
1980 0.00 0.00 0.00 0.00 0.00 29.50 220.50 0.00 z 29.50 0.00 z 0.00 0.00 279.50
1981 0.00 0.00 0.00 0.50 0.00 118.45 a 126.00 211.00 37.00 0.00 0.00 0.00 492.95
1982 0.00 0.00 0.00 0.00 0.00 1.00 84.50 103.00 74.00 0.00 0.00 0.00 262.50
1983 0.00 0.00 0.00 0.00 11.00 0.00 92.50 119.87 a 74.00 0.00 0.00 0.00 297.37
1984 0.00 0.00 0.00 0.00 35.50 41.00 0.00 z 135.50 83.00 0.00 0.00 0.00 295.00
1985 0.00 0.00 0.00 0.00 z 0.00 a 87.93 a 176.00 118.00 13.50 4.13 a 0.00 0.00 399.56
1986 0.00 0.00 0.00 0.00 2.00 51.60 e 60.00 213.00 27.50 0.00 0.00 0.00 354.10
1987 0.00 0.00 0.00 0.00 a 0.00 40.50 64.00 125.50 33.00 11.50 0.00 0.00 274.50
1988 0.00 0.00 0.00 0.00 4.00 24.50 137.50 94.00 64.00 3.00 0.00 0.00 327.00
1989 0.00 0.00 0.00 4.00 4.50 50.00 194.50 78.00 49.50 0.00 0.00 0.00 380.50
1990 0.00 0.00 0.00 0.00 0.00 97.00 157.50 92.50 100.00 0.00 0.00 0.00 447.00
1991 0.00 0.00 0.00 0.00 0.00 9.50 94.50 90.00 63.00 9.50 0.00 0.00 266.50
1992 0.00 0.00 0.00 0.00 0.00 14.00 91.00 179.50 52.00 3.50 0.00 0.00 340.00
1993 0.00 0.00 0.00 0.00 0.00 44.00 45.00 102.00 65.50 2.00 0.00 0.00 258.50
1994 0.00 0.00 0.00 0.00 0.00 134.50 173.50 229.00 0.00 z 0.00 0.00 0.00 537.00
1995 0.00 0.00 0.00 0.00 0.00 41.50 152.50 228.00 103.00 0.00 0.00 0.00 525.00
1996 0.00 0.00 0.00 1.00 8.00 68.00 240.50 231.00 56.00 11.50 0.00 0.00 616.00
1997 0.00 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 178.00 66.00 0.00 0.00 0.00 244.00
1998 0.00 a 0.00 l 0.00 0.00 z 0.00 23.00 234.50 0.00 z 40.50 0.00 z 0.00 0.00 298.00
1999 0.00 0.00 0.00 0.00 0.00 a 82.00 180.00 208.00 83.28 a 12.40 a 0.00 0.00 565.68
2000 0.00 0.00 b 0.00 f 0.00 b 52.00 150.56 c 244.90 a 213.56 d 65.00 0.00 a 0.00 a 0.00 e 726.01
2001 0.00 c 0.00 d 0.00 l 0.00 f 74.06 d 86.50 f 140.00 223.95 b 16.15 d 0.52 a 0.00 c 0.00 c 454.67
2002 0.00 0.00 0.00 j 0.00 2.50 s 77.50 242.00 122.00 54.50 0.00 0.00 0.00 496.00
2003 0.00 0.00 0.00 e 0.00 h 0.00 z 47.00 179.50 141.00 68.00 0.00 k 0.00 q 0.00 435.50
2004 0.00 h 0.00 0.00 k 0.00 0.50 8.50 u 51.50 t 118.00 g 22.00 f 0.00 0.00 j 0.00 n 0.50
2005 0.00 0.00 z 0.00 0.00 g 3.00 15.50 234.00 118.00 3.75 b 0.00 0.00 0.00 374.25
2006 0.00 0.00 0.00 d 0.00 4.00 83.50 225.50 86.00 49.50 0.00 0.00 0.00 448.50
2007 0.00 e 0.00 0.00 a 0.00 0.00 z 58.00 0.00 z 220.50 63.00 0.00 f 0.00 g 0.00 341.50
2008 0.00 0.00 n 0.00 e 0.00 j 6.00 o 27.50 v 21.00 z 96.00 p 28.50 m 0.00 u 0.00 p 0.00 t 0.00
2009 0.00 v 0.00 z 0.00 z 0.00 r 6.72 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 6.72
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
Period of Record Statistics
MEAN 0.00 0.00 0.00 0.09 4.77 46.21 146.47 136.12 58.43 3.19 0.00 0.00 379.57
S.D. 0.00 0.00 0.00 0.54 12.20 36.70 55.34 50.59 32.52 5.96 0.00 0.00 96.69
SKEW 0.00 0.00 0.00 6.78 4.23 0.95 0.18 0.59 0.11 3.25 0.00 0.00 0.50
MAX 0.00 0.00 0.00 4.00 74.06 150.56 244.90 250.00 130.50 36.00 0.00 0.00 616.00
MIN 0.00 0.00 0.00 0.00 0.00 0.00 45.00 44.50 2.50 0.00 0.00 0.00 210.00
NO YRS 64 63 62 59 62 62 62 64 65 62 64 66 50