MILFORD 4 NW, IOWA

Monthly Total Heating Degree Days

(135493)

Base Temperature = 65 F

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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
1919 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 599.50 1055.00 1630.50 3285.00
1920 1640.50 1319.50 1017.00 786.00 250.00 69.50 5.00 32.00 112.50 330.00 958.00 1309.00 7829.00
1921 1272.00 1090.00 841.50 467.50 227.50 18.00 1.00 21.50 106.00 333.50 f 1116.50 1304.00 6465.50
1922 1580.50 1392.74 a 977.00 570.50 164.50 21.00 13.00 6.20 a 102.00 398.50 781.00 1488.50 7495.44
1923 1378.50 1405.00 1284.50 593.00 261.50 61.00 2.14 b 30.00 147.86 b 571.00 831.50 1094.00 7659.99
1924 1740.50 1244.00 1137.50 582.41 a 456.50 90.50 21.00 19.50 247.50 298.50 889.14 a 1727.50 8454.55
1925 1640.50 1175.50 830.80 a 334.50 358.00 56.50 31.50 0.00 z 0.00 z 858.00 951.00 1400.50 7636.80
1926 1447.00 1058.00 1101.50 620.50 147.50 104.50 0.00 0.00 z 205.00 h 516.00 1109.00 1566.50 7670.50
1927 1505.50 1143.50 934.50 588.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4172.00
1928 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
1929 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
1930 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
1931 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
1932 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
1933 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
1934 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
1935 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
1936 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
1937 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
1938 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
1939 0.00 z 0.00 z 0.00 z 0.00 z 85.00 37.50 0.00 0.00 z 0.00 z 0.00 z 484.50 m 1048.50 1171.00
1940 1786.00 1299.00 1184.00 644.50 0.00 z 36.21 a 8.00 47.50 0.00 z 0.00 z 0.00 z 0.00 z 5005.21
1941 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
1942 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
1943 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
1944 0.00 z 1254.50 1204.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1393.00 3852.00
1945 1452.00 1207.50 782.50 610.00 394.50 150.00 17.50 15.00 196.50 443.50 973.50 1590.00 7832.50
1946 1519.50 1209.00 688.50 395.00 328.50 82.00 0.50 35.50 163.00 441.00 963.50 1291.00 7117.00
1947 1332.50 1431.00 1122.00 671.00 363.50 130.00 11.00 0.00 167.00 236.00 1101.00 1424.50 7989.50
1948 0.00 z 0.00 z 0.00 z 409.00 262.98 a 41.50 1.00 15.00 63.00 462.50 930.00 1395.00 3579.98
1949 1635.00 1445.50 1089.50 552.00 152.00 14.00 2.00 13.43 a 216.21 a 393.00 762.50 1345.92 a 7621.06
1950 1785.50 1282.50 1145.28 d 796.00 298.00 46.15 d 23.50 65.00 131.00 355.50 1045.00 1552.00 8525.43
1951 1635.50 1211.00 1126.50 f 740.50 186.00 a 111.00 32.00 27.50 257.00 512.50 1108.00 1540.50 7361.50
1952 1606.66 b 1110.50 1191.50 516.00 272.50 17.00 9.00 23.50 149.50 622.50 886.55 a 1324.00 7729.21
1953 1505.00 1205.50 1021.50 741.00 269.50 47.00 11.00 9.00 151.61 b 310.00 797.00 1313.50 7381.61
1954 1635.25 a 865.41 a 1146.50 500.00 391.50 53.00 0.00 6.64 c 130.00 458.00 f 763.00 1254.00 6745.30
1955 1471.00 1405.50 1123.50 340.50 124.50 73.50 0.00 8.00 138.50 431.50 1172.00 1623.00 7911.50
1956 1619.23 a 1460.50 1178.00 713.50 232.00 14.50 11.50 31.00 161.50 276.00 952.50 1244.00 7894.23
1957 1689.50 1148.50 1060.95 b 567.00 289.50 51.00 0.00 17.50 201.50 536.09 b 1002.93 a 1157.50 7721.97
1958 1321.50 1385.00 1043.00 553.00 171.03 b 104.50 12.00 25.00 101.50 334.91 c 895.00 1546.50 7492.95
1959 1673.50 1469.50 1039.00 520.00 197.00 32.00 5.50 2.00 182.00 621.66 c 1207.50 1093.00 8042.66
1960 1504.00 1380.50 1455.00 544.00 211.00 36.50 4.00 5.00 170.69 a 417.93 d 847.00 1392.00 7967.62
1961 1577.00 1175.50 983.00 718.50 322.50 42.00 2.50 6.00 232.50 420.50 984.00 1519.00 7983.00
1962 1700.50 1355.50 1256.50 650.00 147.50 45.00 21.70 a 8.50 209.50 411.00 814.50 1355.00 7975.20
1963 1832.00 1331.50 902.50 482.50 263.00 16.50 1.50 27.00 107.00 211.00 805.00 1658.00 7637.50
1964 1344.00 1132.50 1168.00 484.00 118.00 31.00 0.00 50.63 a 207.00 493.50 883.00 1523.00 7434.63
1965 1643.50 1413.00 1427.50 642.50 139.50 12.50 6.50 44.50 355.00 415.50 962.50 1150.50 8213.00
1966 1827.00 1339.00 849.50 699.50 296.50 32.50 0.00 37.50 159.00 467.50 1022.14 b 1399.00 8129.14
1967 1483.00 1384.96 a 892.50 530.00 378.00 20.00 28.00 30.50 117.00 504.50 943.50 1310.27 a 7622.23
1968 1521.50 1361.50 749.00 455.00 332.00 50.00 7.50 19.00 134.50 448.00 933.00 1488.50 7499.50
1969 1754.00 1266.00 1384.00 515.00 204.00 117.00 0.50 0.50 126.50 609.00 936.00 1445.00 8357.50
1970 1877.00 1348.00 1222.00 600.00 199.50 25.50 3.00 3.00 179.50 544.50 963.00 1479.50 8444.50
1971 1770.50 1310.50 1125.50 514.00 266.50 11.50 31.52 a 5.50 155.50 372.50 913.50 1405.50 7882.52
1972 1742.00 1501.00 1039.50 621.50 203.00 39.50 20.50 41.50 177.00 587.50 983.50 1648.00 8604.50
1973 1465.00 1193.00 779.50 578.50 246.50 14.50 3.00 1.50 164.50 310.00 882.50 1495.50 7134.00
1974 1611.00 1178.00 972.50 495.00 275.00 47.50 0.00 32.50 227.50 402.50 934.50 1308.50 7484.50
1975 1537.50 1370.96 a 1286.50 781.50 172.00 59.50 12.50 3.50 256.50 391.50 900.50 1343.50 8115.96
1976 1526.00 1012.00 974.00 412.50 223.00 17.50 3.00 3.50 151.00 654.00 1136.50 1551.50 7664.50
1977 1911.00 1116.77 b 857.00 348.50 53.00 11.50 0.50 28.00 104.00 525.50 984.00 1519.50 7459.27
1978 1908.50 1560.50 1070.50 617.00 235.00 50.00 6.50 12.00 76.50 485.00 1020.50 1582.00 8624.00
1979 2008.50 1614.00 1208.50 716.50 326.50 50.17 a 1.50 j 27.50 v 116.00 j 523.79 b 1003.50 1190.40 a 8641.87
1980 1485.42 a 1405.50 1110.00 531.72 a 220.88 c 32.00 7.00 0.00 z 132.00 570.00 810.50 1382.60 a 7687.62
1981 1371.75 a 1141.00 834.93 a 379.29 b 241.50 24.83 a 21.00 30.50 160.00 541.47 a 790.00 1458.50 6994.76
1982 1961.78 a 1344.50 1082.00 668.50 182.50 98.00 0.00 35.50 183.62 a 495.50 1055.50 1279.00 8386.40
1983 1439.50 1133.50 1042.50 762.00 374.00 70.50 1.00 0.00 210.50 553.00 970.00 1957.00 8513.50
1984 1554.50 1089.50 1272.00 617.00 276.50 14.50 10.00 15.00 238.00 456.50 908.50 1368.00 7820.00
1985 1640.50 1331.56 a 851.47 a 415.50 127.00 99.31 a 13.00 67.50 279.00 473.50 1256.50 1758.00 8312.83
1986 1407.83 b 1347.00 865.50 462.50 167.50 19.00 0.00 40.50 121.00 470.50 1103.50 1254.00 7258.83
1987 1312.33 a 894.00 838.50 353.50 81.50 13.50 1.50 56.00 133.50 611.50 782.59 a 1240.00 6318.42
1988 1719.00 1502.50 907.50 535.00 59.50 8.00 0.00 21.00 88.00 616.00 930.00 1390.00 7776.50
1989 1245.50 1475.00 1104.00 540.50 207.70 a 46.55 a 0.00 3.00 182.00 446.00 1067.00 1660.00 7977.25
1990 1139.50 1123.00 917.50 553.50 262.00 42.50 12.00 6.50 k 126.00 511.50 825.00 1531.50 7044.00
1991 1681.50 1064.50 948.00 472.50 200.00 7.00 7.50 8.00 198.00 526.00 1225.50 1271.50 7610.00
1992 1259.50 1077.50 925.50 661.50 195.00 40.50 53.50 78.50 180.50 525.00 1064.00 1402.00 7463.00
1993 1628.00 1402.50 1209.00 681.50 262.50 80.50 2.50 21.50 286.00 556.50 1048.00 1379.00 8557.50
1994 1895.50 1509.50 927.50 560.50 163.00 13.50 8.50 34.50 116.50 410.50 855.00 1326.50 7821.00
1995 1515.50 1233.50 994.50 716.00 315.50 60.50 7.50 2.50 222.50 531.50 1122.00 1326.00 8047.50
1996 1688.50 1300.00 1213.00 666.50 378.00 43.50 3.50 2.50 206.50 466.00 1196.50 1656.50 8821.00
1997 1749.95 a 1276.50 1015.50 700.00 367.00 3.00 14.50 29.50 104.50 465.50 1115.00 1213.50 8054.45
1998 1415.00 949.00 1135.50 491.50 102.00 96.50 0.00 0.00 68.00 424.50 816.50 1223.50 6722.00
1999 1633.50 1021.50 954.50 533.00 191.00 54.00 1.00 6.00 178.00 467.00 677.00 1244.00 6960.50
2000 1497.00 1035.00 762.00 517.50 156.00 72.00 20.15 a 7.00 h 146.50 404.00 1125.50 1822.50 7558.15
2001 1422.00 1483.50 1225.02 a 497.00 229.00 58.00 0.52 a 16.50 150.00 b 490.50 586.00 1186.00 7344.03
2002 1247.00 1055.50 1250.00 515.50 313.00 23.50 1.00 18.00 133.50 691.00 969.00 1196.00 7413.00
2003 1475.50 1330.50 994.50 506.00 263.00 51.00 6.50 10.00 162.00 408.50 971.00 1262.00 7440.50
2004 1540.00 1333.50 819.50 455.50 226.00 60.50 14.00 69.00 71.00 444.50 816.50 1259.50 7109.50
2005 1531.50 1022.00 990.50 389.50 258.00 0.00 5.00 13.50 46.00 438.50 827.00 1509.50 7031.00
2006 1131.50 1245.50 1008.50 383.00 195.00 19.00 0.00 1.50 210.00 582.00 864.00 1137.50 6777.50
2007 1468.50 1494.50 837.00 606.00 91.00 16.00 0.50 2.50 115.00 349.00 902.00 1488.50 7370.50
2008 1212.00 g 1499.00 1170.00 601.15 d 268.50 10.00 0.00 4.50 156.50 511.50 983.50 1545.00 6749.65
2009 1603.50 1162.50 1046.00 662.50 251.00 96.00 19.00 53.50 118.00 708.50 772.50 1598.05 a 8091.05
2010 1779.50 1483.00 909.50 408.00 337.00 36.00 0.00 2.50 149.50 447.50 963.00 1546.00 8061.50
2011 1709.00 1289.00 1063.50 600.50 267.50 29.00 0.00 1.50 229.00 439.68 a 883.50 1217.50 7729.68
2012 1307.50 1127.00 521.50 447.50 105.00 19.50 0.00 b 54.00 169.00 597.00 841.00 1299.00 6488.00
2013 1474.50 1225.50 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 2700.00
Period of Record Statistics
MEAN 1570.36 1268.86 1032.81 559.86 234.61 46.11 7.91 21.57 162.59 478.02 950.35 1407.80 7737.55
S.D. 191.05 164.39 175.44 115.85 87.35 32.72 10.12 19.53 56.97 110.86 132.13 179.34 533.22
SKEW -0.02 -0.23 -0.07 0.04 0.10 0.99 1.90 0.98 0.61 0.33 0.07 0.43 -0.33
MAX 2008.50 1614.00 1455.00 796.00 456.50 150.00 53.50 78.50 355.00 858.00 1256.50 1957.00 8821.00
MIN 1131.50 865.41 521.50 334.50 53.00 0.00 0.00 0.00 46.00 211.00 586.00 1048.50 6318.42
NO YRS 76 78 76 77 76 77 76 70 72 74 76 78 64