HALFWAY, OREGON

Monthly Total Heating Degree Days

(353604)

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
1936 0.00 z 0.00 z 0.00 z 0.00 z 195.50 114.00 10.00 6.00 131.00 329.50 819.50 1031.50 2637.00
1937 1635.50 1055.00 750.50 603.00 223.50 153.50 8.50 29.00 114.00 353.50 724.50 913.50 6564.00
1938 1065.00 805.50 807.00 489.50 317.50 71.00 10.00 34.00 53.00 421.50 981.67 c 1040.00 6095.67
1939 1071.00 1061.00 802.90 a 419.50 165.91 d 212.50 8.00 0.50 96.50 491.50 706.50 910.50 5946.31
1940 1077.50 83.00 z 151.50 x 516.50 156.00 76.50 6.50 0.00 173.50 399.00 1035.50 1001.50 4442.50
1941 1054.50 0.00 z 701.00 476.50 304.00 0.00 z 0.00 t 61.50 q 295.00 550.50 797.50 1083.45 a 5262.45
1942 1376.50 1004.37 a 873.00 466.07 b 431.50 212.68 b 3.00 p 46.50 189.50 487.00 873.00 1107.50 7067.62
1943 1296.00 990.00 954.00 409.29 b 0.00 z 221.50 26.87 a 44.00 95.00 477.92 a 817.00 1113.50 6445.07
1944 1333.50 953.50 880.50 516.50 284.00 181.50 35.00 33.00 189.50 382.00 903.00 1156.00 6848.00
1945 1173.50 237.00 t 791.50 541.03 a 305.35 a 198.00 15.50 28.50 274.50 480.50 a 876.00 1157.85 a 5842.23
1946 1352.00 1122.50 845.50 485.50 291.50 0.00 z 26.50 26.35 a 283.00 718.50 843.50 990.50 6985.35
1947 1409.50 898.00 709.00 543.00 223.00 223.50 18.00 66.50 209.00 0.00 z 968.00 1134.50 6402.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 65.00 80.00 256.03 a 518.00 375.00 q 927.50 o 919.03
1949 1611.50 f 1094.00 837.53 b 467.50 239.14 c 144.00 40.50 27.38 a 154.82 b 699.00 721.55 a 1212.50 5637.93
1950 1459.50 1056.50 934.50 595.00 452.37 d 187.50 45.47 a 22.50 267.50 429.41 d 517.00 k 950.00 6400.24
1951 1345.52 e 1052.43 e 996.50 541.50 335.50 224.00 30.50 71.00 200.50 606.05 a 724.00 f 1297.87 a 6701.37
1952 1339.72 a 1301.89 a 1065.50 523.50 244.50 i 155.50 i 56.50 57.19 b 153.50 200.00 n 634.00 j 1188.73 e 5686.53
1953 670.00 h 937.00 652.50 f 613.50 503.50 268.00 13.00 41.50 142.76 a 463.00 767.22 c 1203.50 4952.98
1954 1067.43 a 802.08 d 844.23 a 556.00 302.25 e 89.50 m 29.50 95.50 235.86 a 584.19 b 754.50 1351.50 6623.05
1955 1152.00 f 1336.46 b 297.50 u 705.50 405.87 d 140.00 89.90 a 10.33 a 260.36 b 525.00 1026.21 a 1228.63 a 5728.26
1956 1223.50 1240.00 903.13 a 530.00 326.03 b 181.20 e 33.50 57.50 194.50 619.48 a 963.10 a 1195.50 7467.46
1957 1593.00 1016.50 790.50 a 516.72 a 274.50 151.50 23.00 51.67 a 142.24 a 558.00 941.79 b 1089.50 7148.92
1958 1242.50 839.00 836.00 592.50 185.00 111.00 14.50 10.00 257.50 472.00 859.00 981.00 6400.00
1959 1056.00 865.50 822.50 521.50 459.50 114.00 53.50 68.50 294.31 a 563.00 963.50 1226.00 7007.81
1960 1424.40 b 1114.35 b 934.02 d 563.50 476.22 b 128.00 2.50 j 141.00 153.10 a 564.50 864.00 1180.50 7543.59
1961 1245.50 831.00 777.50 589.00 346.50 42.00 4.50 5.50 342.00 603.50 961.00 1257.50 7005.50
1962 1538.00 1073.50 915.00 464.50 413.50 165.50 82.50 77.50 181.50 547.50 824.50 1006.50 7290.00
1963 1337.50 729.50 776.50 646.00 293.50 189.00 48.00 50.00 90.50 415.00 838.50 1240.00 6654.00
1964 1343.50 1326.50 1036.00 623.50 384.00 167.00 22.50 89.00 287.00 486.00 905.00 1157.50 7827.50
1965 1126.50 1008.00 894.50 494.00 399.50 136.00 31.50 80.50 337.00 437.50 781.00 1133.00 6859.00
1966 1057.50 1023.00 775.00 526.50 254.00 172.00 24.00 49.50 102.00 586.50 793.50 1128.00 6491.50
1967 1090.00 919.00 818.50 682.50 366.00 150.00 1.00 6.00 84.50 555.00 833.00 1298.00 6803.50
1968 1332.50 898.50 690.00 653.50 386.00 155.00 17.00 122.00 238.00 600.00 863.00 1169.50 7125.00
1969 1266.50 1036.00 941.00 505.00 241.00 124.00 41.00 41.00 179.00 663.00 843.00 1020.00 6900.50
1970 1090.00 872.50 815.00 712.50 377.50 119.00 15.50 10.00 353.00 657.00 826.50 1239.50 7088.00
1971 1191.50 957.00 948.00 574.00 284.00 196.50 51.00 11.50 347.50 631.50 951.00 1287.00 7430.50
1972 1326.50 1057.50 744.50 651.50 295.50 122.00 42.00 14.00 316.50 518.00 818.00 1385.50 7291.50
1973 1359.00 937.00 795.00 584.50 285.50 154.00 19.50 44.00 211.00 567.00 895.50 1122.00 6974.00
1974 1403.50 879.00 784.00 565.50 414.50 84.00 48.50 47.00 156.50 534.50 818.00 1190.50 6925.50
1975 1326.50 1051.50 959.50 699.00 399.50 181.50 15.00 69.00 163.00 518.50 958.50 1221.00 7562.50
1976 1276.50 1134.00 1046.00 575.50 293.00 222.50 14.00 92.00 145.00 542.00 790.50 1167.50 7298.50
1977 1429.50 909.50 862.00 461.50 428.50 28.00 55.00 65.50 240.00 529.00 884.50 992.50 6885.50
1978 1053.00 821.00 625.50 569.00 429.00 142.50 42.00 103.00 272.00 525.50 984.00 1530.50 7097.00
1979 1732.50 992.50 818.00 564.00 325.00 147.50 31.50 11.50 113.50 436.00 960.50 1072.00 7204.50
1980 1178.50 854.50 798.00 477.00 293.50 212.50 18.00 95.50 181.00 531.00 868.50 1065.50 6573.50
1981 1010.00 857.00 726.00 514.00 359.50 193.50 45.00 6.00 198.00 600.50 756.00 1053.00 6318.50
1982 1347.00 1185.50 851.50 647.50 413.00 129.50 53.00 17.50 237.50 551.00 985.00 1210.50 7628.50
1983 1146.50 834.50 676.00 634.00 335.50 155.00 80.50 13.00 293.50 504.50 816.00 1331.50 6820.50
1984 1335.00 1193.50 866.00 613.50 420.00 226.00 23.00 5.50 271.00 646.50 861.50 1468.00 7929.50
1985 1555.50 1285.00 1061.50 464.00 292.00 104.00 0.00 72.00 350.50 623.00 1200.50 1648.00 8656.00
1986 1283.00 869.04 a 598.50 572.50 354.00 55.50 69.00 9.00 341.00 518.00 839.00 1167.50 6676.04
1987 1386.50 953.50 746.00 383.50 234.00 125.50 46.50 a 56.50 154.66 a 483.50 819.00 1092.50 6481.66
1988 1292.91 b 992.69 c 755.00 464.00 344.50 118.00 24.00 29.50 233.50 288.50 858.00 1339.00 6739.61
1989 1408.00 1349.50 865.42 a 430.50 374.00 88.50 13.00 84.00 201.50 544.00 842.00 1102.00 7302.42
1990 1043.00 1086.00 764.50 388.50 401.50 167.50 19.50 49.00 61.00 574.00 846.00 1490.00 6890.50
1991 1437.50 872.50 773.00 582.00 412.50 201.50 9.00 4.50 123.00 503.00 901.00 1140.00 6959.50
1992 1128.50 752.50 583.50 443.50 186.00 86.00 55.00 85.50 243.50 477.50 945.50 1320.50 6307.50
1993 1330.00 1109.50 863.00 567.50 255.50 225.50 215.50 164.00 299.00 448.50 1043.50 1132.00 7653.50
1994 1114.50 1101.00 747.00 439.00 230.50 138.00 19.00 10.50 112.00 567.50 1076.00 1333.50 6888.50
1995 1185.50 794.00 748.00 588.50 325.00 160.00 29.50 92.00 158.00 640.50 788.00 1043.50 6552.50
1996 1208.00 1071.50 735.00 539.00 407.50 135.00 14.50 42.00 262.00 544.00 810.00 1062.50 6831.00
1997 1127.50 1000.50 740.00 582.00 249.00 111.50 44.00 3.50 136.50 552.00 805.00 1260.50 6612.00
1998 1129.00 880.00 741.50 542.00 330.00 167.50 0.00 16.00 118.00 608.00 805.00 1299.50 6636.50
1999 1157.50 1042.00 866.00 620.50 419.50 165.00 62.00 30.00 239.50 526.50 738.50 1254.50 7121.50
2000 1218.00 938.50 753.50 449.00 291.50 114.50 25.00 21.00 249.00 562.50 1008.00 1161.50 6792.00
2001 1332.00 1091.50 756.00 579.50 271.50 143.50 25.50 3.50 119.00 557.00 780.50 1240.50 6900.00
2002 1262.00 1197.50 961.50 521.50 344.00 106.00 4.00 52.00 194.00 644.50 861.50 1016.00 7164.50
2003 1042.50 841.00 665.50 556.50 343.00 91.00 0.50 0.00 160.00 413.50 990.00 1032.50 6136.00
2004 1253.00 1097.00 757.00 470.00 335.50 108.00 6.00 46.50 221.00 487.00 856.50 1051.50 6689.00
2005 1199.00 933.50 716.50 550.00 298.50 193.50 7.50 26.50 250.00 529.50 973.00 1376.00 7053.50
2006 1136.00 1159.00 892.00 511.00 319.50 82.00 3.50 50.00 227.50 596.50 793.50 1247.00 7017.50
2007 1408.00 894.50 677.00 506.00 256.50 78.00 0.00 22.50 226.50 549.00 881.50 1133.00 6632.50
2008 1393.50 1087.00 937.00 668.50 317.50 160.00 5.50 33.50 179.00 539.50 772.50 1211.00 7304.50
2009 1307.50 1048.00 868.00 542.00 319.50 118.00 9.50 35.50 111.50 654.00 903.50 1367.50 7284.50
2010 1061.50 917.50 817.50 599.50 477.00 186.00 32.00 69.50 174.00 2.50 z 0.00 z 0.00 z 4334.50
2011 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3.50 z 12.50 0.50 64.50 463.00 922.50 1176.50 2639.50
2012 1101.00 1006.50 718.00 421.55 a 318.00 122.50 3.00 6.50 79.50 552.50 768.50 1079.50 6177.05
2013 1492.00 982.07 a 747.62 a 13.00 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 3221.69
Period of Record Statistics
MEAN 1265.72 1003.89 817.69 543.28 328.80 147.61 30.27 43.29 200.60 531.44 872.94 1176.93 6946.94
S.D. 159.27 143.40 105.39 76.44 78.48 49.43 30.54 35.32 77.76 83.01 93.57 142.31 480.28
SKEW 0.47 0.46 0.32 0.10 -0.01 -0.04 3.25 0.98 0.13 -0.40 0.77 0.69 0.68
MAX 1732.50 1349.50 1065.50 712.50 503.50 268.00 215.50 164.00 353.00 718.50 1200.50 1648.00 8656.00
MIN 1010.00 729.50 583.50 383.50 156.00 28.00 0.00 0.00 53.00 288.50 706.50 910.50 5946.31
NO YRS 72 72 72 74 73 71 74 76 77 74 72 75 58