UKIAH, OREGON

Monthly Total Heating Degree Days

(358726)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201102
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
1922 0.00 z 0.00 z 0.00 z 0.00 z 359.00 j 213.00 128.50 153.00 327.50 604.00 1021.50 1340.50 3788.00
1923 1136.00 1268.50 944.00 669.00 501.00 353.00 113.00 190.50 299.50 602.50 774.00 1193.00 8044.00
1924 1402.50 801.50 953.50 727.00 379.00 305.00 152.00 292.00 404.50 546.00 877.00 1404.50 8244.50
1925 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 216.11 c 68.50 177.50 345.50 674.00 843.10 a 1016.50 3341.21
1926 1276.50 811.00 731.50 485.00 490.00 235.50 88.50 173.50 519.00 597.50 762.50 1164.57 a 7335.07
1927 1247.50 892.00 892.50 700.00 588.50 244.50 139.00 159.50 388.50 557.00 759.00 1428.50 7996.50
1928 1196.50 1100.50 808.50 724.50 427.00 327.50 123.50 214.00 381.00 633.50 843.50 1283.00 8063.00
1929 1567.00 1296.00 926.50 785.00 524.50 325.50 149.00 108.50 485.50 605.50 1016.00 962.50 8751.50
1930 1747.50 839.48 a 828.00 566.50 553.50 361.00 146.00 146.50 377.00 689.00 1038.00 1445.00 8737.48
1931 1217.00 1007.50 889.00 664.00 416.50 311.00 120.00 163.50 413.00 679.50 1084.50 1392.50 8358.00
1932 1419.50 1272.00 934.00 668.50 540.50 272.00 186.00 235.50 395.00 635.00 804.50 1396.00 8758.50
1933 1284.50 1273.50 990.00 742.00 708.00 340.00 166.00 185.50 436.50 514.50 837.00 841.50 8319.00
1934 869.50 705.50 651.50 475.00 368.50 303.00 145.00 138.50 398.50 545.50 716.50 1119.00 6436.00
1935 1302.50 1044.00 999.00 767.00 583.50 306.50 172.50 198.00 322.00 680.50 1050.50 1220.50 8646.50
1936 1228.00 1273.00 938.50 582.50 374.00 228.00 110.00 185.50 411.50 643.50 1090.50 1154.00 8219.00
1937 1871.50 1147.50 906.00 752.00 505.00 364.00 145.50 263.50 288.50 465.50 739.50 940.50 8389.00
1938 1043.00 884.50 857.50 616.50 489.50 240.00 93.50 226.00 200.00 534.50 991.50 1088.00 7264.50
1939 1024.00 1120.50 932.00 579.00 439.50 358.50 125.50 128.50 325.00 604.00 833.50 892.50 7362.50
1940 1210.50 933.50 740.50 608.50 388.00 218.50 91.50 182.50 221.00 505.50 1113.50 1058.50 7272.00
1941 987.50 802.00 774.00 647.00 478.50 295.00 76.00 140.50 450.00 620.00 780.50 1000.50 7051.50
1942 1430.00 1144.00 987.00 642.00 562.00 395.00 119.50 169.50 387.50 617.00 883.50 1170.00 8507.00
1943 1456.00 1042.50 1017.50 591.50 629.00 435.50 139.50 210.00 275.00 578.50 825.50 1194.50 8395.00
1944 1215.00 1084.00 970.00 661.03 a 505.00 331.50 147.50 194.50 289.00 473.00 946.00 1187.50 8004.03
1945 1206.50 929.00 932.50 717.50 481.00 342.50 112.00 119.50 394.00 587.50 908.00 1228.50 7958.50
1946 1219.00 1017.00 880.00 623.50 469.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4208.50
1947 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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 202.07 d 227.13 e 227.50 n 382.50 m 474.50 o 1053.50 j 429.21
1949 1919.79 c 1057.58 d 885.80 d 558.60 e 418.50 d 183.50 o 78.00 p 58.50 s 176.00 p 0.00 z 481.50 l 1116.55 c 5956.82
1950 1483.35 a 1035.00 992.50 543.50 g 419.00 h 263.50 f 106.50 108.00 341.50 512.50 799.00 871.50 6249.85
1951 1291.50 939.50 1012.00 643.00 458.00 309.00 90.50 174.50 296.00 647.50 908.00 1257.00 8026.50
1952 1412.57 a 1162.50 1010.50 570.50 479.50 314.00 113.00 145.00 241.00 471.50 1062.50 1225.00 8207.57
1953 896.42 a 916.50 886.00 680.00 566.78 a 408.00 161.64 c 129.50 247.50 571.50 741.50 1041.00 7246.34
1954 1086.00 753.00 952.00 643.00 438.81 b 373.00 139.50 246.50 365.00 644.50 607.00 f 0.00 z 5641.31
1955 0.00 z 0.00 z 0.00 z 803.79 a 597.00 276.21 a 204.50 205.52 d 347.00 g 565.75 c 1052.31 d 1200.50 4905.58
1956 1189.50 1274.50 968.50 631.50 405.50 327.50 78.50 f 108.00 m 307.00 677.00 981.50 1066.00 7828.50
1957 1634.50 1079.00 846.50 656.50 446.73 c 293.40 e 190.50 109.50 s 256.00 g 654.00 952.50 1029.00 7782.63
1958 1091.00 719.19 a 985.50 696.96 b 228.00 j 217.50 b 59.00 k 0.00 z 0.00 z 588.40 e 874.00 944.00 6116.55
1959 1000.00 957.60 c 0.00 z 0.00 z 0.00 z 106.00 p 143.00 218.00 352.50 580.00 927.50 1123.00 5301.60
1960 1419.00 1101.50 893.50 666.50 562.00 321.50 94.00 240.00 342.50 647.90 a 909.00 1163.50 8360.90
1961 1068.50 752.89 a 835.50 700.50 559.00 183.00 110.10 b 58.50 h 445.00 636.57 b 1023.00 1147.00 7461.06
1962 1274.00 977.00 993.00 554.50 541.00 340.00 177.00 155.00 257.00 560.07 a 794.50 1011.50 7634.57
1963 1407.50 672.00 842.00 740.50 468.50 298.50 198.50 150.00 168.50 501.50 802.50 1124.00 7374.00
1964 1126.50 1053.00 936.50 715.00 0.00 z 423.50 121.50 199.00 373.00 529.00 919.00 1115.50 7511.50
1965 1130.00 838.50 885.50 564.50 498.50 215.89 b 103.50 125.50 455.00 487.50 758.00 1178.00 7240.39
1966 1079.00 1004.50 823.00 617.50 417.50 298.50 169.00 152.00 252.50 631.00 765.50 1030.00 7240.00
1967 1002.00 853.50 908.00 774.00 516.00 265.50 103.00 60.50 192.00 602.50 874.50 1236.50 7388.00
1968 1188.50 808.00 755.50 743.50 501.50 258.50 127.50 206.50 331.50 686.50 884.50 1175.50 7667.50
1969 1317.50 1066.00 968.00 441.50 i 270.00 l 141.00 h 177.98 b 205.00 315.50 810.00 880.00 1063.00 6802.98
1970 1192.00 832.00 967.50 877.50 535.00 211.50 109.50 132.00 481.50 676.50 842.78 c 1322.50 8180.28
1971 1155.78 a 906.50 1026.50 734.50 486.70 a 350.00 102.00 74.83 b 510.50 786.50 946.50 1224.50 b 8304.81
1972 1198.87 e 1026.00 793.00 788.50 505.00 227.00 157.50 128.50 473.50 672.50 870.00 a 1435.50 8275.87
1973 1283.50 929.50 895.90 a 777.50 507.00 266.00 135.50 171.00 333.62 a 656.88 b 903.50 938.50 7798.40
1974 1397.38 e 861.00 860.00 694.14 a 561.50 202.50 163.50 175.84 b 356.00 656.50 889.50 1158.76 b 7976.63
1975 1180.50 1011.63 a 965.50 834.00 543.50 369.50 123.48 a 245.50 358.97 a 630.00 964.50 1034.50 8261.58
1976 1223.50 1044.50 995.10 a 719.50 502.50 395.00 147.25 a 214.50 305.50 658.00 807.00 1148.00 8160.35
1977 1428.00 850.00 983.00 622.50 606.50 217.00 181.50 104.50 416.00 618.50 927.50 1007.50 7962.50
1978 1064.50 842.50 724.88 a 701.50 563.50 263.50 133.50 204.00 398.50 630.85 a 1118.00 1449.50 8094.73
1979 1686.00 1023.00 881.00 666.00 461.50 290.50 124.00 93.00 257.50 533.00 1015.00 1019.00 8049.50
1980 1248.00 856.00 912.95 a 586.00 482.05 a 380.50 125.00 285.50 355.18 b 606.50 860.50 1031.00 7729.18
1981 963.50 915.50 851.43 b 676.00 499.00 339.50 211.00 110.50 357.50 697.00 824.00 1052.00 7496.93
1982 1281.00 1113.00 929.00 795.50 586.50 208.50 175.50 141.05 a 389.00 661.00 991.50 1177.00 8448.55
1983 1034.00 819.50 785.50 756.00 496.00 362.50 227.00 67.00 452.00 674.00 839.00 1410.00 7922.50
1984 1284.50 1049.00 874.00 732.50 574.50 348.00 149.00 113.00 451.50 760.50 917.00 1402.23 a 8655.73
1985 1557.00 1260.50 1140.00 649.00 505.50 297.00 46.00 231.00 530.50 726.00 1336.00 1589.00 9867.50
1986 1099.00 875.50 694.00 720.50 503.50 165.00 240.50 64.50 488.50 596.50 836.00 1106.00 7389.50
1987 1389.00 991.50 458.00 l 516.50 423.50 241.50 159.50 209.00 303.00 603.50 852.50 1150.50 6840.00
1988 1213.28 b 955.50 873.00 597.00 488.50 279.00 123.50 177.50 381.50 416.50 902.50 1312.50 7720.28
1989 1342.00 1404.00 910.37 a 577.00 527.50 257.50 172.00 196.00 383.00 709.50 838.50 1104.50 8421.87
1990 1049.50 1029.50 867.50 592.00 575.50 329.00 124.00 168.50 266.50 683.50 824.50 1441.00 7951.00
1991 1335.00 0.00 z 927.50 732.50 593.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 956.35 a 4544.85
1992 0.00 z 764.50 737.00 0.00 z 0.00 z 211.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1713.00
1993 0.00 z 0.00 z 0.00 z 698.50 347.00 328.50 320.00 238.00 412.00 469.81 b 1085.36 b 1057.50 4956.67
1994 968.50 1011.50 820.50 616.03 a 465.50 219.00 i 123.50 166.50 281.00 705.50 1078.50 1176.00 7413.03
1995 1000.50 781.50 860.00 734.50 496.50 344.50 148.50 254.95 b 270.50 704.00 794.00 1026.00 7415.45
1996 1127.00 1053.50 477.50 l 639.00 587.00 349.00 120.00 129.00 449.00 638.00 818.50 1113.50 7023.50
1997 1149.00 893.50 573.00 i 665.50 411.00 312.78 c 153.50 82.50 268.00 665.47 a 535.50 i 1108.50 5709.74
1998 1065.00 847.00 792.00 669.00 516.50 321.50 23.50 v 131.50 211.00 665.00 847.50 1206.00 7272.00
1999 795.50 g 669.50 i 884.69 e 573.00 h 613.69 d 332.31 d 207.59 c 75.50 i 339.50 f 643.25 c 683.40 e 1039.02 a 4403.94
2000 1145.97 a 824.08 e 704.00 f 550.56 c 460.02 c 320.17 a 149.66 b 0.00 z 246.00 f 603.39 c 1089.81 d 831.50 h 5143.65
2001 961.00 f 964.38 b 367.50 r 447.00 l 107.50 x 0.00 z 0.00 z 0.00 z 103.00 n 553.72 b 485.50 k 499.00 p 1518.11
2002 546.50 p 358.50 r 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 68.00 z 0.00 z 0.00
2003 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
2004 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
2005 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
2006 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 879.00 f 0.00
2007 1245.17 d 877.50 700.17 b 659.00 489.00 87.50 v 13.12 e 0.00 z 0.00 z 616.79 b 0.00 z 0.00 z 4600.75
2008 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 55.50 y 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2009 0.00 z 0.00 z 0.00 z 0.00 z 283.00 m 14.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2010 0.00 z 0.00 z 0.00 z 488.00 h 639.00 356.00 196.00 227.50 325.00 577.50 646.00 g 495.50 q 2321.00
2011 273.50 z 34.00 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
2012 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
2013 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 1248.35 977.04 891.53 669.48 504.64 300.32 141.83 171.61 354.84 614.40 903.55 1156.67 7973.25
S.D. 211.30 160.09 93.02 81.82 70.58 61.65 45.75 53.67 83.97 75.93 119.64 157.40 570.41
SKEW 0.97 0.46 -0.35 -0.03 0.11 -0.13 0.64 -0.03 -0.02 -0.19 0.83 0.48 0.20
MAX 1919.79 1404.00 1140.00 877.50 708.00 435.50 320.00 292.00 530.50 810.00 1336.00 1589.00 9867.50
MIN 869.50 672.00 651.50 475.00 347.00 165.00 13.12 60.50 168.50 416.50 683.40 841.50 6436.00
NO YRS 72 73 69 71 71 71 73 69 69 76 71 73 53