RICHLAND, WASHINGTON

Monthly Total Cooling Degree Days

(457015)

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
1944 0.00 z 0.00 z 0.00 z 0.00 z 39.00 r 110.00 362.50 237.50 118.50 0.00 0.00 b 0.00 j 828.50
1945 0.00 0.00 0.00 0.00 48.50 148.45 a 442.50 386.50 87.00 6.50 0.00 0.00 1119.45
1946 0.00 a 0.00 0.00 4.50 56.50 147.50 412.00 257.00 h 97.50 0.00 a 0.00 0.00 718.00
1947 0.00 0.00 0.00 6.00 176.50 83.50 352.00 271.00 127.50 22.50 0.00 0.00 1039.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 241.00 210.00 234.50 115.20 e 0.00 l 0.00 0.00 800.70
1949 0.00 0.00 0.00 4.00 132.00 163.50 321.50 294.50 a 139.50 0.00 0.00 a 0.00 1055.00
1950 0.00 0.00 0.00 0.00 19.50 131.50 325.00 362.00 151.00 0.00 0.00 a 0.00 989.00
1951 0.00 a 0.00 0.00 0.00 43.50 181.50 422.12 a 322.00 106.50 0.50 0.00 0.00 1076.12
1952 0.00 0.00 0.00 19.00 83.00 164.50 413.00 322.50 165.50 16.00 0.00 0.00 1183.50
1953 0.00 0.00 0.00 2.50 39.50 56.50 360.00 313.50 164.00 6.00 0.00 0.00 942.00
1954 0.00 0.00 0.00 2.00 70.00 112.50 312.00 235.00 75.50 0.00 0.00 0.00 807.00
1955 0.00 0.00 0.00 0.50 11.00 201.00 278.00 321.00 157.00 0.50 0.00 0.00 969.00
1956 0.00 0.00 0.00 9.00 113.00 111.00 418.00 298.63 a 122.50 0.50 0.00 0.00 1072.63
1957 0.00 0.00 0.00 8.00 80.50 212.00 315.50 257.50 172.50 6.00 0.00 0.00 1052.00
1958 0.00 0.00 0.00 0.00 203.50 310.50 526.00 486.50 129.50 13.00 0.00 0.00 1669.00
1959 0.00 0.00 0.00 2.50 25.50 139.00 338.00 208.00 54.00 4.50 0.00 0.00 771.50
1960 0.00 0.00 1.00 3.00 28.00 151.50 458.00 223.00 71.00 8.50 0.00 0.00 944.00
1961 0.00 0.00 0.00 3.50 40.00 304.00 409.50 452.00 54.50 5.00 0.00 a 0.00 1268.50
1962 0.00 0.00 0.00 17.00 6.00 149.50 316.50 238.50 120.00 0.00 0.00 0.00 847.50
1963 0.00 0.00 0.00 0.00 66.50 153.00 223.00 303.00 196.00 8.50 0.00 0.00 950.00
1964 0.00 0.00 0.00 0.00 22.50 107.50 303.00 165.50 36.50 1.50 0.00 0.00 636.50
1965 0.00 0.00 0.00 6.00 22.50 101.50 302.00 295.50 46.50 14.00 0.00 0.00 788.00
1966 0.00 0.00 0.00 0.50 68.50 106.50 249.00 271.00 126.00 6.00 0.00 0.00 827.50
1967 0.00 0.00 0.00 0.00 31.50 188.50 334.00 403.00 183.50 4.50 0.00 0.00 1145.00
1968 0.00 0.00 0.00 11.50 31.50 151.00 367.00 189.50 89.50 1.00 0.00 0.00 841.00
1969 0.00 0.00 0.00 1.00 57.00 255.50 250.50 166.50 67.50 0.00 0.00 0.00 798.00
1970 0.00 0.00 0.00 0.00 21.00 217.00 331.50 235.00 31.00 4.00 0.00 0.00 839.50
1971 0.00 0.00 0.00 0.00 45.50 49.00 311.50 368.50 16.50 0.00 0.00 0.00 791.00
1972 0.00 0.00 0.00 0.00 59.50 135.50 265.00 301.00 39.00 0.00 0.00 0.00 800.00
1973 0.00 0.00 0.00 0.00 56.50 133.50 297.00 241.00 67.50 0.00 0.00 0.00 795.50
1974 0.00 0.00 0.00 0.00 18.00 227.00 285.00 308.00 125.00 2.50 0.00 0.00 965.50
1975 0.00 0.00 0.00 0.00 22.50 87.50 399.50 200.50 89.50 0.50 0.00 a 0.00 800.00
1976 0.00 0.00 0.00 0.00 21.50 82.00 266.00 204.00 138.00 9.00 0.00 0.00 720.50
1977 0.00 0.00 0.00 18.62 a 8.00 261.00 293.50 440.00 48.00 0.00 0.00 0.00 1069.12
1978 0.00 0.00 0.00 0.00 14.50 178.50 327.05 a 256.00 43.00 0.00 0.00 0.00 819.05
1979 0.00 0.00 0.00 4.00 42.00 171.00 362.00 314.00 117.00 0.50 0.00 0.00 1010.50
1980 0.00 0.00 0.00 8.50 24.50 67.00 311.00 196.00 0.00 z 10.00 0.00 0.00 617.00
1981 0.00 0.00 0.00 7.50 39.00 68.50 267.50 379.00 118.50 0.00 0.00 0.00 880.00
1982 0.00 0.00 a 0.00 0.00 14.50 195.00 260.50 264.00 75.00 0.00 0.00 0.00 809.00
1983 0.00 0.00 0.00 0.00 93.00 82.00 237.00 351.00 17.50 0.00 0.00 0.00 780.50
1984 0.00 0.00 0.00 0.00 14.00 84.50 315.00 279.00 49.66 a 4.50 0.00 a 0.00 b 746.66
1985 0.00 0.00 0.00 3.10 a 83.50 164.50 470.00 222.50 20.50 0.00 0.00 0.00 964.10
1986 0.00 1.50 0.00 0.00 a 111.00 252.50 178.77 a 373.50 51.50 0.00 0.00 0.00 b 968.77
1987 0.00 0.00 0.00 22.50 82.00 190.00 125.00 r 216.00 122.50 0.50 0.00 0.00 633.50
1988 0.00 0.00 0.00 2.00 40.50 132.50 267.50 208.50 73.00 4.50 0.00 0.00 728.50
1989 0.00 0.00 0.00 0.50 20.00 155.00 230.00 175.00 44.50 0.00 0.00 0.00 625.00
1990 0.00 0.00 0.00 0.00 3.50 120.00 343.50 281.50 146.50 0.00 0.00 0.00 895.00
1991 0.00 0.00 0.00 0.00 0.00 31.50 270.50 328.00 79.00 4.50 0.00 0.00 713.50
1992 0.00 0.00 0.00 5.50 57.50 225.50 261.50 302.00 45.00 8.00 0.00 0.00 905.00
1993 0.00 0.00 0.00 0.00 101.50 94.00 101.50 184.50 91.00 0.00 0.00 0.00 572.50
1994 0.00 z 0.00 0.00 5.50 40.00 88.00 358.50 0.00 z 0.00 z 0.00 0.00 0.00 492.00
1995 0.00 0.00 0.00 z 0.00 z 44.00 0.00 z 279.00 0.00 z 0.00 z 0.00 z 0.00 0.00 323.00
1996 0.00 0.00 0.00 2.00 2.00 56.50 306.00 223.50 46.50 1.00 0.00 0.00 637.50
1997 0.00 0.00 0.00 0.00 45.00 62.50 220.50 319.00 72.00 0.00 0.00 0.00 719.00
1998 0.00 0.00 0.00 5.00 30.00 104.00 425.00 346.50 159.00 0.00 0.00 z 0.00 1069.50
1999 0.00 0.00 0.00 0.00 24.50 98.50 206.50 300.50 32.00 0.00 0.00 0.00 662.00
2000 0.00 0.00 0.00 0.00 21.50 113.50 239.50 248.00 61.50 0.00 0.00 0.00 684.00
2001 0.00 0.00 0.00 a 4.00 70.00 65.00 253.00 308.00 0.00 z 0.50 0.00 0.00 700.50
2002 0.00 0.00 0.00 0.00 9.00 161.00 347.00 233.00 73.50 0.00 0.00 0.00 823.50
2003 0.00 0.00 2.50 0.00 51.00 156.50 365.00 296.50 116.00 15.00 0.00 0.00 1002.50
2004 0.00 0.00 0.00 0.00 7.00 167.50 358.50 317.00 37.00 1.50 0.00 0.00 888.50
2005 0.00 0.00 0.00 0.00 40.50 87.00 309.50 282.00 28.00 0.00 0.00 0.00 747.00
2006 0.00 0.00 0.00 1.50 61.00 114.00 379.50 237.50 73.50 0.00 0.00 0.00 867.00
2007 0.00 0.00 0.00 0.00 20.00 96.50 390.00 213.50 68.00 0.00 0.00 0.00 788.00
2008 0.00 0.00 z 0.00 0.00 46.00 86.50 280.50 234.00 47.00 0.50 0.00 0.00 694.50
2009 0.00 0.00 0.00 0.00 51.00 137.50 351.50 281.00 96.50 0.00 0.00 0.00 917.50
2010 0.00 0.00 0.00 0.00 10.50 63.50 273.00 245.50 49.50 3.50 0.00 0.00 645.50
2011 0.00 0.00 0.00 0.00 0.00 48.62 a 167.00 284.50 114.83 a 0.50 0.00 0.00 615.45
2012 0.00 0.00 0.00 7.76 a 12.50 58.50 293.50 289.00 49.50 0.50 0.00 a 0.00 711.26
2013 0.00 0.00 a 0.00 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 0.02 0.05 3.01 45.60 137.53 315.82 280.99 88.42 2.93 0.00 0.00 876.26
S.D. 0.00 0.18 0.33 5.05 39.11 63.30 76.18 68.75 45.65 4.74 0.00 0.00 187.11
SKEW 0.00 8.00 6.76 2.22 1.78 0.69 0.09 0.69 0.41 2.02 0.00 0.00 1.38
MAX 0.00 1.50 2.50 22.50 203.50 310.50 526.00 486.50 196.00 22.50 0.00 0.00 1669.00
MIN 0.00 0.00 0.00 0.00 0.00 31.50 101.50 165.50 16.50 0.00 0.00 0.00 572.50
NO YRS 67 67 67 66 67 68 68 66 65 67 68 68 59