SAN DIEGO WSO AIRPORT, CALIFORNIA

Monthly Total Heating Degree Days

(047740)

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
1914 270.50 217.50 134.00 121.50 150.00 56.50 3.00 0.00 16.50 30.50 65.50 325.00 1390.50
1915 304.00 270.00 191.00 158.00 145.00 22.00 2.50 0.00 8.50 75.00 164.00 294.00 1634.00
1916 388.00 252.50 192.50 143.50 128.50 106.50 21.50 8.00 31.50 177.50 255.00 390.00 2095.00
1917 415.50 287.50 323.50 242.50 208.50 75.00 0.00 0.00 3.50 43.50 140.50 201.00 1941.00
1918 327.00 278.00 205.50 146.00 131.00 20.00 0.00 0.00 0.00 8.00 162.50 315.50 1593.50
1919 259.50 318.50 309.00 173.00 125.00 15.00 0.50 0.00 3.00 103.50 200.00 265.50 1772.50
1920 321.50 240.50 292.50 222.00 166.50 42.50 3.50 0.00 12.00 110.00 201.50 317.00 1929.50
1921 355.00 281.50 233.00 246.00 202.50 61.00 1.00 0.00 12.50 50.00 159.00 179.00 1780.50
1922 387.50 316.00 323.00 262.00 151.50 49.50 0.00 0.00 0.00 65.50 213.00 217.50 1985.50
1923 278.50 276.00 205.50 179.50 70.50 83.50 3.50 0.00 10.00 51.50 66.00 233.50 1458.00
1924 302.00 178.00 259.00 174.00 70.00 16.00 1.50 2.00 15.50 142.50 162.00 339.50 1662.00
1925 326.50 235.50 243.50 199.50 87.00 38.50 0.00 0.00 3.00 48.50 136.50 149.00 1467.50
1926 258.00 160.50 95.50 52.00 46.00 3.50 0.50 0.00 10.50 65.50 64.00 306.50 1062.50
1927 297.00 239.50 262.00 207.00 123.00 56.50 1.00 0.00 5.00 44.50 77.00 279.50 1592.00
1928 228.00 219.50 172.50 164.50 68.50 33.50 5.00 0.00 10.00 88.00 145.00 276.50 1411.00
1929 330.00 331.50 290.50 224.50 94.00 34.50 0.00 0.00 0.50 19.50 103.00 148.50 1576.50
1930 282.50 204.50 179.00 96.00 154.00 26.50 1.00 0.00 3.00 53.00 111.50 246.00 1357.00
1931 232.00 163.50 118.50 50.00 2.50 1.50 0.00 0.00 0.00 27.50 237.00 347.50 1180.00
1932 396.50 276.00 188.00 153.00 107.00 44.00 6.50 3.50 9.00 65.00 71.00 333.50 1653.00
1933 378.00 343.50 247.00 215.00 212.50 103.00 24.50 6.00 69.00 97.50 140.00 306.00 2142.00
1934 275.50 189.00 116.50 81.50 27.00 33.50 1.00 0.00 5.50 40.50 124.50 187.00 1081.50
1935 280.00 220.00 324.00 152.50 108.00 49.50 5.50 0.00 1.00 56.50 212.00 235.00 1644.00
1936 262.50 252.50 236.00 205.00 58.00 18.00 0.00 0.00 0.00 26.50 76.50 214.00 1349.00
1937 488.00 296.00 259.50 159.00 94.00 22.00 0.00 0.00 1.00 43.00 147.50 147.00 1657.00
1938 204.00 221.00 242.00 157.50 112.00 54.00 7.50 0.00 0.00 73.00 173.00 179.00 1423.00
1939 294.00 353.50 305.50 138.00 94.50 20.50 1.00 0.00 1.00 23.00 71.00 145.50 1447.50
1940 212.50 206.00 145.00 97.50 27.00 9.00 0.50 0.00 0.00 24.00 128.50 136.00 986.00
1941 230.50 143.00 99.50 124.50 12.50 5.00 0.00 0.00 0.00 36.00 81.00 232.00 964.00
1942 226.00 264.00 220.00 144.50 63.00 18.50 0.00 0.50 0.00 26.50 128.00 233.50 1324.50
1943 250.50 164.00 156.50 120.00 27.00 33.00 0.00 0.00 0.00 31.50 109.00 222.50 1114.00
1944 268.50 302.00 194.50 164.50 76.00 28.50 2.50 1.00 4.00 26.00 156.00 210.50 1434.00
1945 301.50 230.00 288.00 199.50 76.50 20.00 0.00 0.00 0.50 11.00 160.00 240.00 1527.00
1946 276.00 296.00 245.00 87.00 48.00 0.00 0.00 0.00 0.00 57.50 204.00 245.00 1458.50
1947 356.50 183.50 140.50 101.00 43.50 0.00 0.00 0.00 0.00 4.50 199.50 286.00 1315.00
1948 288.00 315.00 282.50 136.50 85.00 26.50 2.00 0.00 6.50 49.00 150.50 352.50 1694.00
1949 533.50 343.50 274.00 120.50 73.50 0.50 0.00 0.00 0.50 60.00 79.00 314.50 1799.50
1950 402.50 264.00 214.00 133.50 120.50 36.50 0.00 0.00 0.00 7.50 123.50 166.00 1468.00
1951 294.00 264.00 199.00 129.00 89.50 6.50 0.00 0.50 1.50 21.00 111.50 295.50 1412.00
1952 330.00 211.00 288.00 159.50 37.50 36.00 2.00 0.00 1.50 23.50 177.00 269.00 1535.00
1953 164.00 229.50 231.00 183.00 102.00 32.00 0.00 0.00 4.50 18.50 90.50 231.50 1286.50
1954 310.00 129.00 242.00 122.00 66.50 22.00 0.00 0.00 0.50 40.50 68.50 214.00 1215.00
1955 343.00 267.00 168.00 165.50 109.50 19.00 0.00 0.00 2.00 61.00 161.50 244.00 1540.50
1956 297.00 334.00 215.00 188.00 61.50 10.00 0.00 0.00 0.00 37.50 80.00 162.50 1385.50
1957 265.50 151.50 169.50 129.00 59.00 8.50 0.00 0.00 0.00 11.00 133.00 122.50 1049.50
1958 176.50 129.00 230.00 83.50 12.50 0.00 0.00 0.00 0.00 2.00 99.50 114.00 847.00
1959 163.50 222.00 76.00 33.00 29.50 0.00 0.00 0.00 0.00 12.00 27.50 158.00 721.50
1960 315.50 236.00 162.00 94.50 50.00 5.00 0.00 0.00 0.00 28.50 137.50 270.50 1299.50
1961 143.00 168.00 188.00 105.50 109.50 48.50 0.00 0.00 0.00 37.50 158.50 276.50 1235.00
1962 263.00 238.00 287.50 109.00 82.00 38.00 0.00 0.00 1.00 30.50 160.50 267.00 1476.50
1963 309.00 121.00 234.50 188.00 47.50 25.50 0.50 0.00 0.00 7.00 121.50 209.50 1264.00
1964 302.50 241.00 230.50 161.50 131.50 44.50 0.00 0.00 0.00 8.50 193.00 291.50 1604.50
1965 284.00 255.00 199.50 144.50 80.50 40.50 3.50 0.00 0.50 10.50 124.50 307.50 1450.50
1966 344.50 292.50 218.00 114.50 49.00 5.00 0.00 0.00 0.00 4.50 119.50 241.50 1389.00
1967 309.00 203.50 187.00 254.00 79.50 53.50 0.00 0.00 0.00 3.00 46.00 295.50 1431.00
1968 244.00 125.50 142.00 93.50 53.00 11.00 0.50 0.00 0.00 10.50 106.00 313.00 1099.00
1969 218.50 282.50 256.00 107.50 69.00 12.00 0.00 0.00 0.00 17.50 51.50 186.50 1201.00
1970 248.50 149.00 142.00 149.00 65.50 17.00 0.00 0.00 0.00 15.00 114.50 298.00 1198.50
1971 338.00 272.50 224.00 148.50 117.00 31.00 0.00 0.00 0.00 82.50 165.50 336.50 1715.50
1972 315.00 208.50 148.50 84.50 40.50 0.50 0.00 0.00 0.00 31.50 157.00 232.50 1218.50
1973 293.50 142.00 216.00 114.50 66.50 1.50 0.00 0.00 0.00 8.00 140.00 212.00 1194.00
1974 253.00 191.50 183.50 93.50 60.50 5.50 0.00 0.00 0.00 16.00 103.00 270.00 1176.50
1975 277.00 242.50 234.00 188.00 89.50 15.00 0.00 0.00 0.00 22.50 147.00 252.50 1468.00
1976 202.50 156.50 154.00 122.50 21.00 1.00 0.00 0.00 0.00 0.50 43.50 135.50 837.00
1977 151.50 101.50 233.50 109.00 97.50 6.00 0.00 0.00 0.00 0.00 40.50 61.50 801.00
1978 126.00 123.00 56.50 50.50 9.00 0.00 0.00 0.00 0.00 0.00 110.00 302.50 777.50
1979 253.50 226.50 161.00 52.50 26.50 6.00 0.00 0.00 0.00 5.00 82.50 144.50 958.00
1980 124.00 55.50 111.50 64.50 51.00 1.50 0.00 0.00 0.00 8.00 84.00 138.00 638.00
1981 120.50 105.50 123.00 43.00 2.00 0.00 0.00 0.00 0.00 11.50 64.00 146.00 615.50
1982 262.50 125.50 145.00 67.50 12.00 3.00 0.00 0.00 0.00 1.50 99.50 236.50 953.00
1983 143.00 115.50 95.50 87.50 11.00 0.50 0.00 0.00 0.00 0.00 70.00 136.50 659.50
1984 129.00 141.00 55.50 48.00 4.50 0.00 0.00 0.00 0.00 5.50 111.00 258.00 752.50
1985 247.00 226.50 190.50 64.50 24.00 2.50 0.00 0.00 0.00 4.00 154.00 218.00 1131.00
1986 127.50 181.50 141.50 92.00 32.50 0.00 0.00 0.00 8.50 12.50 75.00 229.50 900.50
1987 300.00 201.50 187.50 75.50 26.00 7.00 1.00 0.00 0.00 1.00 105.00 343.50 1248.00
1988 258.50 151.50 131.50 93.00 58.00 26.00 0.00 0.00 0.50 7.00 148.00 283.00 1157.00
1989 319.00 244.00 165.00 43.00 44.00 18.00 0.00 0.00 1.00 15.00 72.00 195.00 1116.00
1990 260.50 274.00 195.50 59.50 44.00 2.50 0.00 0.00 0.00 4.00 93.50 291.00 1224.50
1991 236.00 157.50 263.00 108.00 101.50 33.50 0.00 0.00 0.00 26.00 102.00 240.00 1267.50
1992 236.00 123.50 144.00 9.50 1.50 0.00 0.00 0.00 0.00 0.00 90.00 301.50 906.00
1993 251.00 196.50 119.00 49.00 10.00 6.50 0.00 0.00 0.00 5.50 111.00 248.00 996.50
1994 222.50 240.00 153.50 124.00 91.00 1.50 0.00 0.00 0.00 16.00 258.00 284.00 1390.50
1995 251.00 113.00 143.50 114.00 92.50 30.50 0.00 0.00 0.00 5.00 56.50 208.50 1014.50
1996 229.00 180.00 156.50 59.00 8.00 0.50 0.00 0.00 0.00 49.50 121.00 223.00 1026.50
1997 223.50 189.00 128.00 87.00 0.00 1.50 0.00 0.00 0.50 2.50 67.50 237.00 936.50
1998 211.00 216.00 179.50 161.00 75.00 11.50 2.00 0.00 0.00 15.50 160.00 298.50 1330.00
1999 231.50 204.00 208.50 196.00 140.00 70.00 5.00 0.00 5.00 3.00 138.00 224.00 1425.00
2000 218.00 179.50 213.00 86.50 29.00 0.50 0.00 0.00 0.00 31.00 199.00 215.50 1172.00
2001 318.50 287.00 191.50 198.50 46.00 6.00 0.00 0.00 0.00 6.50 113.00 296.00 1463.00
2002 290.00 215.50 228.00 164.50 107.00 23.50 0.00 0.00 1.00 41.00 68.50 255.50 1394.50
2003 122.50 167.50 157.00 156.50 88.00 39.50 0.00 0.00 0.00 6.50 127.50 250.50 1115.50
2004 253.50 241.50 104.00 47.00 0.00 0.00 0.00 0.00 0.00 33.50 149.50 225.50 1054.50
2005 200.00 145.00 127.50 107.50 21.00 2.50 0.00 0.00 0.00 23.50 84.50 206.50 918.00
2006 249.50 189.00 242.50 94.00 25.00 0.00 0.00 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 800.00
Period of Record Statistics
MEAN 269.44 216.27 195.54 128.27 71.47 22.08 1.20 0.23 2.95 31.12 123.81 240.45 1303.95
S.D. 76.04 65.01 62.49 55.64 48.77 23.42 3.62 1.11 8.46 32.20 49.56 64.29 329.01
SKEW 0.40 0.00 0.04 0.26 0.69 1.40 5.04 5.61 5.79 1.91 0.46 -0.26 0.14
MAX 533.50 353.50 324.00 262.00 212.50 106.50 24.50 8.00 69.00 177.50 258.00 390.00 2142.00
MIN 120.50 55.50 55.50 9.50 0.00 0.00 0.00 0.00 0.00 0.00 27.50 61.50 615.50
NO YRS 93 93 93 93 93 93 92 92 92 92 92 92 92