REDLANDS, CALIFORNIA

Monthly Total Heating Degree Days

(047306)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1898 0.00 z 0.00 z 0.00 z 112.00 116.50 1.50 0.00 0.00 0.50 29.00 225.00 395.00 879.50
1899 361.00 300.00 320.00 139.50 148.00 26.00 0.00 0.00 0.00 123.50 146.00 272.50 1836.50
1900 253.00 212.00 160.50 276.50 70.00 0.00 0.00 1.50 23.00 93.00 127.50 286.50 1503.50
1901 435.50 295.00 203.00 175.50 86.50 10.50 0.00 0.00 9.50 43.00 164.50 276.50 1699.50
1902 384.50 331.00 349.00 158.00 64.00 4.50 0.50 0.00 0.00 64.00 313.00 418.00 2086.50
1903 375.00 459.50 325.00 230.00 87.00 1.50 0.00 0.00 5.00 16.50 123.50 335.50 1958.50
1904 426.50 260.00 214.00 132.50 22.50 0.00 0.00 0.00 2.00 15.50 n 110.19 d 0.00 z 1167.69
1905 0.00 z 275.50 207.70 a 199.50 188.00 6.50 0.00 0.00 0.00 54.00 263.28 a 384.50 1578.98
1906 377.17 a 251.50 284.00 210.00 117.50 18.50 0.00 0.00 4.50 42.00 350.50 401.50 2057.17
1907 524.50 211.00 385.50 170.00 126.67 b 39.50 0.00 b 0.00 6.00 59.00 176.50 349.00 2047.67
1908 419.00 405.00 240.00 93.50 99.50 42.00 0.00 a 0.00 19.00 146.50 261.00 452.50 2178.00
1909 414.88 a 387.00 403.50 155.00 128.00 5.50 2.00 0.00 9.50 99.50 274.50 538.50 2417.88
1910 505.00 385.50 219.00 102.00 37.00 8.50 0.00 5.50 0.00 71.50 210.50 316.00 1860.50
1911 399.50 476.50 228.50 227.50 107.50 9.00 0.00 0.00 5.00 76.50 243.50 487.00 2260.50
1912 352.50 270.00 437.50 314.00 111.00 8.00 6.00 0.00 10.50 149.50 159.00 445.00 2263.00
1913 495.00 404.50 334.00 202.00 107.50 34.50 1.50 0.00 0.00 53.50 240.00 456.00 2328.50
1914 394.50 272.50 174.50 177.50 106.50 20.50 0.00 0.00 6.50 50.00 124.00 546.00 1872.50
1915 468.50 396.50 239.00 210.00 167.50 0.56 c 0.00 0.00 15.50 28.50 210.50 f 423.00 1949.06
1916 532.54 c 225.27 a 150.00 110.50 81.00 9.50 0.00 2.50 7.50 191.00 269.00 525.00 2103.80
1917 582.00 384.50 375.50 251.00 202.50 7.50 0.00 0.00 2.00 38.75 a 174.00 209.00 2226.75
1918 400.50 345.00 245.00 157.00 133.00 0.00 a 0.00 3.00 0.00 26.35 a 268.50 440.50 2018.85
1919 365.00 457.50 389.50 151.00 59.50 1.50 0.00 0.00 15.00 145.50 275.00 366.00 2225.50
1920 381.50 356.50 369.00 237.50 100.50 9.31 a 0.00 3.50 10.00 149.50 205.00 i 508.18 c 2125.49
1921 509.50 331.50 272.50 283.00 198.06 d 17.00 0.00 b 0.00 8.28 a 60.00 212.50 328.00 2220.33
1922 596.00 468.50 431.42 a 323.50 97.00 26.50 0.00 0.00 0.00 87.50 333.50 340.00 2703.92
1923 371.00 351.50 284.00 233.50 61.00 48.50 0.00 0.00 22.00 91.28 d 99.50 k 405.67 b 1868.45
1924 337.00 f 161.00 f 414.50 232.50 38.50 2.50 0.00 e 0.00 c 15.50 143.00 217.00 468.00 1531.50
1925 413.50 257.00 249.00 216.50 53.50 39.00 0.00 0.00 0.50 105.00 264.00 277.00 1875.00
1926 396.50 239.00 169.50 127.50 53.50 0.00 1.50 0.00 0.00 40.00 108.50 485.00 1621.00
1927 388.00 313.00 343.00 208.00 72.50 16.00 0.00 0.00 8.00 34.00 159.00 467.67 b 2009.17
1928 327.50 298.50 219.50 136.50 50.50 9.50 0.00 0.00 0.00 119.00 214.50 421.00 1796.50
1929 487.50 427.50 301.00 260.50 20.00 34.00 0.00 0.00 3.50 45.50 123.00 200.00 1902.50
1930 478.50 207.00 276.00 109.00 181.50 13.50 0.00 0.00 26.50 103.00 213.00 469.00 2077.00
1931 391.00 335.50 194.00 96.00 25.00 15.50 0.00 0.00 4.50 94.50 390.50 535.50 2082.00
1932 586.50 440.00 238.00 196.03 a 107.00 67.00 0.00 0.00 14.00 87.50 111.50 562.00 2409.53
1933 559.00 461.00 292.00 272.50 236.00 53.50 0.00 0.00 12.50 65.50 136.50 366.50 2455.00
1934 363.00 309.50 71.00 89.50 44.00 38.00 0.00 0.00 22.50 69.50 252.50 347.00 1606.50
1935 455.00 328.00 429.50 181.00 126.00 0.00 4.50 0.00 0.00 108.00 314.50 404.50 2351.00
1936 390.00 421.50 268.00 175.50 32.50 23.50 0.00 0.00 1.00 96.00 193.00 427.50 2028.50
1937 787.00 424.00 343.50 185.00 77.00 7.50 0.00 0.00 a 1.50 45.50 235.50 329.00 2435.50
1938 331.50 392.50 385.00 199.50 113.00 24.50 0.00 0.00 0.00 86.00 304.00 317.50 2153.50
1939 481.00 516.50 350.50 98.79 a 84.50 2.50 0.00 0.00 13.00 72.50 156.50 273.50 2049.29
1940 398.00 384.50 251.50 178.50 36.50 2.50 1.00 0.00 1.50 76.00 259.50 328.50 1918.00
1941 408.50 295.50 274.00 259.50 59.50 21.00 0.00 2.50 15.00 152.00 185.50 435.50 2108.50
1942 365.00 412.50 304.00 213.50 87.00 2.50 0.00 0.50 10.50 67.00 202.00 339.50 2004.00
1943 375.00 266.50 250.50 146.50 28.50 28.50 0.00 0.00 0.00 96.00 189.50 433.50 1814.50
1944 454.00 456.00 298.50 245.00 82.50 66.50 0.00 0.00 5.00 47.50 325.00 360.50 2340.50
1945 420.00 357.50 429.00 228.50 102.00 36.50 0.00 0.00 11.00 52.00 277.00 404.50 2318.00
1946 399.50 402.00 310.00 115.50 102.00 0.00 0.00 0.00 0.00 120.50 299.50 334.00 2083.00
1947 420.50 253.50 245.50 147.50 56.00 4.50 0.00 3.00 1.00 77.00 312.50 436.00 1957.00
1948 336.50 455.00 447.00 213.50 126.00 21.00 0.00 0.00 14.00 102.00 270.50 525.00 2510.50
1949 741.00 479.00 392.00 125.00 97.50 2.50 0.00 a 0.00 1.00 112.50 65.00 f 420.50 2371.00
1950 567.50 264.00 272.50 128.00 133.50 23.00 0.00 0.00 6.21 a 20.00 155.00 215.50 1785.21
1951 447.00 366.50 282.10 a 203.00 105.00 13.50 0.00 0.00 5.00 71.50 244.50 489.00 2227.10
1952 516.50 371.50 446.00 201.00 25.00 33.50 0.00 0.00 5.50 31.00 382.76 a 477.00 2489.76
1953 324.50 367.00 321.00 290.50 185.50 46.00 0.00 9.00 4.00 105.00 201.50 399.50 2253.50
1954 469.00 220.50 436.50 173.50 72.50 30.00 0.00 0.00 7.50 104.50 112.50 431.00 2057.50
1955 535.50 386.81 a 267.50 195.00 129.00 19.50 0.00 0.00 7.50 86.50 238.00 407.00 2272.31
1956 384.50 499.00 261.00 246.00 86.50 0.50 0.00 0.00 0.00 94.00 179.00 308.00 2058.50
1957 497.00 233.00 238.50 163.50 113.00 5.50 0.00 e 0.00 0.00 81.00 287.68 b 294.00 1913.18
1958 348.23 a 262.50 395.50 154.50 27.50 0.00 0.00 0.00 2.00 20.50 190.50 223.00 1624.23
1959 287.00 354.50 99.50 38.50 43.00 0.00 0.00 0.00 1.00 26.50 96.00 326.00 1272.00
1960 495.00 365.00 176.00 100.00 58.50 0.00 0.00 0.00 0.00 41.50 244.50 356.00 1836.50
1961 257.00 211.00 262.50 99.00 64.50 6.00 0.00 0.00 7.50 77.00 261.00 378.50 1624.00
1962 370.00 382.50 404.50 66.00 109.50 27.93 a 0.00 0.00 0.00 37.00 185.50 296.00 1878.93
1963 448.50 136.50 293.00 240.00 40.00 16.00 0.00 0.00 3.00 25.50 223.50 306.00 1732.00
1964 431.00 316.50 329.00 211.00 103.50 13.50 0.00 0.00 0.50 17.00 303.00 409.00 2134.00
1965 342.50 283.50 288.50 234.00 91.50 43.50 0.00 0.00 4.00 15.00 206.00 409.00 1917.50
1966 442.50 375.50 190.00 63.00 33.50 4.50 0.00 a 0.00 0.00 19.50 208.00 349.50 1686.00
1967 362.00 209.00 274.50 379.50 105.50 58.50 0.00 0.00 0.00 11.00 112.00 482.50 1994.50
1968 399.00 173.50 210.50 140.00 74.50 17.50 0.00 0.00 2.00 32.00 167.00 454.50 1670.50
1969 340.00 420.00 317.00 145.50 58.50 24.00 0.00 0.00 0.00 95.00 171.50 366.00 1937.50
1970 407.00 226.50 274.50 246.50 52.50 22.50 0.00 0.00 0.00 80.00 193.50 473.50 1976.50
1971 408.50 333.50 271.50 216.00 151.50 40.50 0.00 0.00 23.50 185.00 271.00 563.00 2464.00
1972 468.50 254.50 112.00 103.50 66.50 0.00 0.00 0.00 a 6.00 128.00 304.00 461.50 1904.50
1973 0.00 z 343.50 430.50 189.50 70.00 12.00 0.00 0.00 8.79 a 61.00 321.21 a 388.50 1825.00
1974 486.50 348.50 319.50 169.00 78.02 a 3.00 0.00 0.00 0.00 82.50 188.50 418.00 2093.52
1975 361.50 349.00 368.00 331.50 97.50 22.00 0.00 0.00 z 0.52 a 104.00 223.00 331.00 2188.02
1976 293.50 328.50 301.50 246.50 53.50 15.50 0.00 0.00 0.00 28.00 0.00 z 335.50 1602.50
1977 414.00 187.00 385.50 97.50 183.50 4.00 0.00 0.00 1.50 26.50 0.00 z 0.00 z 1299.50
1978 357.50 288.50 194.50 192.00 47.00 0.00 0.00 0.00 0.00 13.00 287.00 482.00 1861.50
1979 505.00 358.50 296.00 113.50 55.00 8.00 0.00 0.00 0.00 59.50 233.00 283.00 1911.50
1980 310.50 0.00 z 301.00 143.00 157.50 22.00 0.00 0.00 b 2.00 49.00 202.00 265.50 1452.50
1981 329.00 227.50 h 281.50 98.50 34.00 0.00 0.00 0.00 0.00 87.50 170.50 273.50 1274.50
1982 473.50 0.00 z 412.00 238.00 87.00 39.50 0.00 0.00 7.50 35.50 305.50 450.50 2049.00
1983 338.00 259.50 281.38 e 211.67 c 61.00 13.00 0.00 0.00 6.00 21.00 269.00 389.00 1849.55
1984 311.50 244.50 145.00 111.00 7.00 0.50 0.00 0.00 0.00 45.50 253.00 432.00 1550.00
1985 401.50 273.50 299.00 74.00 31.00 10.50 0.00 0.00 4.00 31.00 283.93 b 249.00 1657.43
1986 172.00 232.50 169.00 0.00 z 39.50 0.00 0.00 0.00 29.00 25.00 73.00 247.50 987.50
1987 349.00 260.00 261.00 32.00 25.00 0.00 0.00 0.00 1.00 27.50 172.50 449.50 1577.50
1988 309.00 151.50 160.50 138.00 51.00 8.50 o 0.00 0.00 10.50 2.50 196.50 368.50 1388.00
1989 388.50 329.50 137.50 44.00 46.00 2.00 0.00 0.00 5.50 51.50 123.50 245.50 1373.50
1990 337.00 338.50 211.50 96.50 43.50 3.00 0.00 0.00 0.00 2.00 144.50 427.00 1603.50
1991 328.50 104.50 407.00 137.00 93.50 2.00 0.00 0.00 0.00 61.00 125.50 329.50 1588.50
1992 334.50 220.09 a 256.27 a 44.00 0.00 3.00 0.00 0.00 0.00 9.50 177.50 462.00 1506.86
1993 403.52 a 329.00 120.38 a 49.50 3.00 10.50 0.00 0.00 0.50 10.50 192.50 344.50 1463.90
1994 256.00 340.00 171.50 147.50 85.50 0.00 0.00 0.00 0.00 64.50 361.50 384.50 1811.00
1995 241.50 k 179.00 246.50 184.50 150.50 47.07 a 0.00 0.00 0.00 12.00 58.00 319.50 1197.07
1996 328.50 252.20 a 233.50 70.00 13.50 1.50 0.00 0.00 0.00 94.00 0.00 z 323.50 1316.70
1997 376.00 288.50 110.05 a 118.00 0.00 7.00 0.00 0.00 0.00 17.50 i 65.00 t 384.50 1284.05
1998 379.00 378.50 260.50 141.50 g 135.00 32.00 0.00 0.00 8.00 42.50 199.00 341.50 1776.00
1999 291.50 307.46 b 316.72 a 301.03 a 56.83 a 32.00 0.00 0.00 0.00 4.65 a 137.50 281.07 a 1728.76
2000 288.50 326.81 c 259.92 e 72.50 20.31 b 0.00 0.00 0.00 0.00 79.16 c 269.50 254.09 c 1570.79
2001 448.50 399.54 b 257.30 a 248.28 a 8.02 b 0.00 0.00 a 0.00 0.00 14.50 158.28 a 432.50 1966.91
2002 346.00 183.50 245.50 119.00 41.50 0.00 0.00 0.00 2.50 78.00 87.50 384.00 1487.50
2003 119.00 290.50 198.50 214.00 70.00 7.00 0.00 0.00 0.00 11.50 251.00 355.50 1517.00
2004 325.50 365.50 77.00 92.00 2.00 0.00 0.00 0.00 0.00 109.00 297.50 345.50 1614.00
2005 364.00 310.50 244.00 136.50 44.00 3.50 0.00 z 0.00 0.00 51.00 110.50 279.50 1543.50
2006 326.00 208.00 0.00 z 252.50 37.00 2.00 0.00 0.00 z 0.00 28.00 121.00 298.50 1273.00
2007 412.50 260.50 147.77 a 129.00 17.50 1.00 0.00 0.00 15.00 36.50 110.00 433.00 1562.77
2008 423.00 309.00 173.00 118.50 98.50 4.50 0.00 0.00 0.00 29.50 87.00 408.50 1651.50
2009 261.00 337.00 226.50 171.00 0.00 a 19.50 0.00 0.00 0.00 63.60 b 150.00 401.00 1629.60
2010 342.50 307.00 227.85 a 201.00 77.00 3.00 0.00 2.50 7.50 72.00 253.00 333.00 1826.35
2011 320.00 376.50 257.50 133.50 56.50 9.50 0.00 0.00 0.00 34.50 231.00 371.50 1790.50
2012 236.00 270.50 229.50 108.00 22.00 0.00 0.00 0.00 0.00 21.50 124.00 381.50 1393.00
2013 421.00 336.00 142.50 6.00 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 899.50
Period of Record Statistics
MEAN 400.85 321.01 273.47 170.80 78.66 14.69 0.15 0.30 4.85 64.52 211.64 380.82 1935.57
S.D. 97.00 84.62 88.73 70.21 49.34 16.15 0.75 1.17 6.61 41.22 73.63 82.24 301.78
SKEW 0.79 -0.02 0.05 0.30 0.72 1.24 6.21 5.09 1.63 0.72 0.14 0.02 0.14
MAX 787.00 516.50 447.00 379.50 236.00 67.00 6.00 9.00 29.00 191.00 390.50 563.00 2703.92
MIN 119.00 104.50 71.00 32.00 0.00 0.00 0.00 0.00 0.00 2.00 58.00 200.00 1272.00
NO YRS 111 111 114 113 115 114 114 113 115 113 107 113 92