GRACE, IDAHO

Monthly Total Heating Degree Days

(103732)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1907 530.00 r 882.50 879.50 595.50 442.61 d 230.00 29.50 31.00 k 211.50 355.00 600.50 l 1193.00 4819.11
1908 1269.00 886.50 f 954.50 528.50 500.00 332.50 10.85 a 97.43 c 216.00 669.50 949.00 1252.50 6779.78
1909 1138.50 1060.89 a 997.00 735.52 a 498.14 b 131.00 29.00 9.50 224.50 528.07 b 871.50 1522.50 7746.11
1910 1409.00 1230.50 100.50 z 494.50 368.50 90.00 7.00 60.97 a 136.50 484.50 813.50 1097.00 6191.97
1911 1116.00 1203.00 862.00 712.50 82.50 w 135.50 49.00 52.50 236.00 661.50 1109.00 1389.50 7526.50
1912 1284.50 1142.50 1028.50 743.00 458.00 137.00 35.00 66.65 a 490.00 663.50 902.00 1271.50 8222.15
1913 1351.00 1163.50 1059.00 512.50 313.00 98.50 61.00 7.00 0.00 z 0.00 z 0.00 z 1351.50 5917.00
1914 0.00 z 0.00 z 856.50 251.50 p 194.00 170.00 6.00 31.00 e 256.00 506.00 826.50 1388.00 4234.00
1915 1349.05 c 929.00 824.00 435.00 e 442.00 0.00 z 45.00 26.50 316.00 524.50 923.50 0.00 z 5814.55
1916 0.00 z 1108.00 868.00 549.50 527.00 220.50 14.00 32.00 110.00 j 656.00 1081.50 1369.17 a 6425.67
1917 1535.50 1191.00 1326.00 787.50 488.50 206.50 12.50 34.50 166.50 0.00 z 260.00 t 872.50 6621.00
1918 1219.50 0.00 z 890.00 720.00 a 470.50 97.24 a 13.50 70.50 121.50 480.50 910.86 a 1191.00 6185.10
1919 1248.50 1077.50 897.00 544.50 275.50 77.50 0.50 0.50 134.50 722.00 1030.50 1481.00 7489.50
1920 1317.00 996.50 1024.50 882.00 490.00 262.24 a 26.00 82.50 312.00 790.00 1004.00 1247.50 8434.24
1921 1333.00 1158.50 928.00 838.00 448.00 153.50 70.00 72.00 425.00 529.00 858.00 1248.00 8061.00
1922 1731.00 1345.50 1305.50 951.00 476.50 115.50 51.50 12.50 230.00 576.00 1035.50 1294.00 9124.50
1923 1273.00 1454.00 1333.00 788.00 453.50 301.50 4.00 66.00 274.00 776.00 888.50 1457.00 9068.50
1924 1629.50 1077.50 1227.00 730.50 366.50 185.00 56.50 58.50 310.00 661.00 1021.50 1510.50 8834.00
1925 1336.50 1039.50 931.00 641.50 351.00 264.50 14.00 97.00 270.00 670.00 976.50 1154.50 7746.00
1926 1429.00 1043.00 948.50 559.50 394.00 137.50 22.00 55.00 388.00 581.00 840.50 1368.50 7766.50
1927 1331.50 1161.50 1105.50 752.50 551.50 190.50 46.50 102.50 325.50 586.50 829.50 1524.50 8508.00
1928 1311.50 1277.50 966.50 803.00 337.00 314.50 62.00 116.50 267.00 625.50 980.00 1559.00 8620.00
1929 1615.00 1461.50 1145.00 827.50 548.50 281.00 43.50 10.00 390.50 612.50 1042.50 1079.50 9057.00
1930 1746.00 1019.00 1017.00 530.00 537.00 250.50 20.50 48.50 281.50 699.00 1220.00 1682.00 9051.00
1931 1485.00 1164.50 1138.00 684.50 480.50 a 95.00 37.50 33.00 286.50 604.00 1172.50 1523.50 8704.50
1932 1617.50 1325.50 1214.00 743.00 431.00 254.50 46.00 91.50 232.00 719.50 899.00 1626.50 9200.00
1933 1371.00 1505.00 1166.00 847.00 595.00 72.00 10.50 102.50 270.50 498.00 919.00 1079.00 8435.50
1934 1166.50 840.50 747.50 501.00 275.50 221.00 14.00 23.00 351.21 a 539.00 893.50 1363.50 6936.21
1935 1377.00 1193.00 1135.00 703.50 537.50 176.00 16.50 23.50 190.50 658.50 1105.50 1345.50 8462.00
1936 1474.00 1237.50 1214.00 733.45 a 354.00 167.00 17.00 49.50 333.50 595.00 1010.50 1239.00 8424.45
1937 1790.00 1269.00 1156.00 853.00 367.00 273.00 21.00 53.50 203.00 542.50 892.00 1162.50 8582.50
1938 1280.00 1076.50 1074.50 662.50 508.00 181.50 84.50 82.00 145.50 531.50 1210.00 1158.00 7994.50
1939 1329.50 1392.50 996.50 572.50 378.00 290.00 47.00 54.50 259.50 593.50 828.00 1046.50 7788.00
1940 1328.50 1080.50 879.50 626.00 335.00 151.00 16.50 28.50 241.00 529.00 1133.00 1138.00 7486.50
1941 1433.00 1117.00 1012.00 729.50 405.00 255.50 32.00 76.50 424.50 677.50 974.00 1239.50 8376.00
1942 1533.50 1385.00 1268.50 682.50 570.00 269.50 12.50 57.00 269.00 586.50 1027.50 1307.50 8969.00
1943 1439.00 1181.00 1141.00 484.00 519.50 331.50 78.50 52.00 206.00 571.00 915.00 1279.50 8198.00
1944 1544.50 1232.50 1236.00 780.50 441.00 355.50 64.50 107.00 307.00 511.00 1179.00 1485.00 9243.50
1945 1393.00 1124.00 1187.00 869.00 466.00 374.00 58.50 75.00 404.50 538.50 1094.00 1390.50 8974.00
1946 1463.00 1241.00 1035.00 572.00 514.00 217.00 23.50 43.00 344.50 781.00 994.00 1105.00 8333.00
1947 1519.50 1002.50 899.00 712.00 357.00 362.50 34.00 95.50 266.00 532.00 1165.00 1339.00 8284.00
1948 1375.00 1236.00 1223.00 753.00 469.00 196.50 69.00 65.00 247.50 575.50 1096.50 1465.50 8771.50
1949 1853.00 1317.50 1017.00 591.50 381.00 247.00 51.50 64.50 262.00 810.00 773.50 1330.00 8698.50
1950 1441.00 1142.00 1076.50 770.00 593.50 311.50 110.50 114.00 358.00 530.00 912.00 1149.50 8508.50
1951 1407.00 1060.50 1181.00 685.00 473.50 374.50 78.00 115.50 303.50 716.50 1113.50 1422.00 8930.50
1952 1487.00 1405.50 1320.00 762.00 425.50 224.00 90.00 38.00 202.00 495.00 1173.00 1245.50 8867.50
1953 1008.00 1074.00 919.00 786.00 621.50 276.00 26.50 50.50 201.50 548.50 801.50 1342.00 7655.00
1954 1237.00 1089.50 1123.00 618.00 402.00 320.00 34.00 109.50 255.50 630.50 788.00 1354.50 7961.50
1955 1586.50 1389.00 1290.00 859.50 493.50 291.00 83.00 23.50 305.00 591.00 1092.50 1224.50 9229.00
1956 1247.50 1462.50 1150.50 700.00 404.50 182.00 57.00 111.00 255.50 647.00 1132.50 1393.50 8743.50
1957 1600.50 1048.50 975.00 743.00 445.88 a 211.50 22.00 50.00 282.50 647.50 1189.66 a 1270.50 8486.54
1958 1468.50 1002.00 1160.00 806.50 286.00 153.00 70.50 13.50 i 262.00 527.50 1030.00 1050.00 7816.00
1959 1210.00 1131.00 1065.00 652.00 569.00 141.50 50.00 78.00 326.00 610.00 904.50 1227.50 7964.50
1960 1455.50 1387.50 1072.50 646.50 451.50 161.50 14.50 121.00 171.50 600.50 930.50 1368.00 8381.00
1961 1314.50 1020.00 961.50 686.00 415.50 98.50 10.00 8.50 408.50 686.50 1059.50 1320.00 7989.00
1962 1528.50 1096.15 a 1164.00 572.50 453.50 203.50 49.00 105.50 235.50 0.00 z 855.50 1134.50 7398.15
1963 1474.00 842.50 956.50 787.00 352.00 270.50 38.50 31.50 156.50 412.50 963.00 1385.50 7670.00
1964 1505.50 1450.50 1320.50 0.00 z 0.00 z 307.50 19.50 0.00 z 329.50 545.50 985.50 1221.00 7685.00
1965 1225.00 1084.00 1124.00 645.50 492.50 241.00 45.50 128.50 447.00 497.00 848.50 1393.00 8171.50
1966 1357.50 1284.00 1104.50 689.50 338.00 197.50 16.00 79.00 204.50 671.50 867.50 1417.00 8226.50
1967 1260.50 1142.30 a 1023.50 816.00 455.50 253.50 19.50 18.50 214.00 589.00 913.50 1477.00 8182.80
1968 1473.50 1123.50 936.00 791.00 511.00 235.00 32.50 184.00 326.50 620.00 1030.00 1309.50 8572.50
1969 1235.00 1181.50 1282.00 639.00 292.00 257.50 61.50 33.00 202.50 802.00 929.00 1191.50 8106.50
1970 1290.00 915.50 1013.50 869.00 459.50 211.00 54.50 16.50 410.00 776.50 929.50 1325.00 8270.50
1971 1316.50 1176.50 1130.00 736.00 450.50 224.50 36.50 17.50 396.00 723.00 1030.00 1437.50 8674.50
1972 1419.00 1169.00 849.50 704.00 434.00 168.50 62.50 37.50 353.00 586.50 1008.00 1504.50 8296.00
1973 1514.00 1217.00 1130.50 826.50 395.50 198.00 47.50 40.00 308.50 567.00 1001.00 1216.50 8462.00
1974 1409.50 1235.00 946.50 683.50 430.79 b 149.50 29.50 84.50 249.00 565.00 900.50 1371.50 8054.79
1975 1421.00 1208.50 1094.50 915.00 582.28 a 261.00 18.50 114.00 283.00 630.00 1077.50 1145.89 c 8751.18
1976 1338.68 a 1188.50 1297.50 748.50 347.95 b 218.50 25.50 127.74 b 264.11 b 80.50 z 0.00 z 329.50 w 5556.98
1977 1396.50 1088.37 a 1168.00 546.72 a 510.50 60.00 41.85 a 82.00 265.00 547.15 a 934.50 1114.50 7755.09
1978 1243.50 1038.59 a 846.50 650.50 0.00 z 222.50 56.83 a 145.50 338.50 558.00 1065.00 1551.55 a 7716.98
1979 1741.50 1153.70 a 1098.43 a 725.50 387.00 187.00 38.75 a 71.00 189.50 556.00 1166.50 1180.00 8494.89
1980 1361.93 a 1052.00 1024.00 626.50 493.00 255.50 41.50 128.50 278.00 644.50 900.50 1162.50 7968.43
1981 1199.00 1039.50 884.50 609.00 488.50 217.00 25.32 a 12.50 203.00 653.14 b 868.97 a 927.00 f 6200.42
1982 1440.97 b 1269.85 a 932.00 539.00 i 492.50 231.50 65.00 19.00 292.00 698.50 1135.00 1341.50 7917.82
1983 1183.00 1056.50 882.00 782.00 521.00 172.00 k 64.50 k 39.50 236.00 558.50 982.00 1453.90 a 7694.40
1984 1539.50 1366.00 1098.50 842.50 410.50 282.00 29.00 29.00 340.00 784.00 697.50 i 1464.00 8185.00
1985 1579.97 a 1375.50 0.00 z 0.00 z 359.50 179.00 0.00 z 104.00 393.50 0.00 z 1130.50 1560.50 6682.47
1986 1276.50 952.00 703.00 657.50 467.00 79.66 a 87.50 24.00 397.00 607.50 929.50 0.00 z 6181.16
1987 1447.50 1013.50 901.50 483.62 a 328.50 144.00 75.50 97.00 222.00 538.50 954.50 1201.00 7407.12
1988 1423.50 1208.50 1012.50 546.50 415.50 83.50 6.20 a 47.50 300.00 385.50 993.00 1385.00 7807.20
1989 1495.00 1269.50 928.00 523.50 402.48 a 170.00 7.00 89.50 261.50 606.50 898.50 1277.50 7928.98
1990 1166.00 1175.00 833.50 504.50 500.00 212.00 37.00 66.00 103.50 607.50 909.50 1594.00 7708.50
1991 1452.00 1012.00 973.00 712.50 517.00 194.00 39.50 23.50 248.00 603.00 1117.00 1245.50 8137.00
1992 1473.50 985.50 721.50 488.50 243.00 160.00 92.00 78.50 247.00 502.00 1079.50 1434.00 7505.00
1993 1458.00 1263.00 1035.00 740.50 368.00 322.50 229.00 161.00 358.50 595.50 1150.00 1223.50 8904.50
1994 1149.50 1168.50 870.50 602.50 310.00 162.50 34.50 16.50 158.50 616.00 1124.00 1131.50 7344.50
1995 1179.00 810.50 854.50 676.00 513.00 248.00 64.50 32.00 221.00 622.00 803.50 1049.00 7073.00
1996 1264.50 1134.00 944.50 664.00 447.50 110.50 5.00 30.50 323.00 650.00 895.00 1219.00 7687.50
1997 1322.00 1198.00 957.50 805.50 353.50 155.00 62.50 27.50 217.00 629.50 934.50 1397.00 8059.50
1998 1151.00 1048.00 1056.50 686.00 446.50 295.50 0.50 10.00 142.50 620.00 853.00 1310.50 7620.00
1999 1186.50 1065.50 935.50 731.00 494.50 220.00 22.00 18.00 278.50 564.50 751.00 1265.00 7532.00
2000 1162.00 949.00 909.50 539.50 372.50 144.00 13.50 15.00 308.00 628.50 1200.00 1316.50 7558.00
2001 1523.00 1154.50 911.00 664.00 330.50 164.50 5.00 2.00 98.00 516.00 814.66 a 1453.50 7636.66
2002 1338.00 1308.50 1149.50 611.50 409.50 153.50 3.50 34.00 211.50 695.50 1003.00 1167.00 8085.00
2003 1068.00 1085.50 875.50 674.00 430.00 148.50 0.00 22.50 266.50 471.00 1095.00 1182.50 7319.00
2004 1472.50 1286.00 876.00 597.00 464.50 194.50 24.50 121.00 324.00 644.50 1014.00 1196.50 8215.00
2005 1298.00 1233.17 d 1064.00 681.50 465.50 321.50 45.00 51.00 302.00 554.00 928.50 1324.50 8268.67
2006 1234.00 1288.00 a 1107.00 600.00 372.00 118.50 0.50 37.00 341.00 654.00 953.00 1279.50 7984.50
2007 1559.50 1021.00 846.00 638.50 375.50 132.00 0.00 c 8.00 234.50 569.00 872.00 1296.00 7552.00
2008 1480.25 a 1192.50 770.00 j 801.00 480.50 210.00 1.00 42.92 e 257.50 638.00 839.00 1352.08 e 7294.75
2009 1387.25 a 1220.07 a 1103.00 774.50 443.50 287.50 39.00 j 102.00 163.00 772.00 957.00 1376.50 8586.32
2010 1297.00 1141.50 956.50 680.50 598.50 187.50 36.50 65.50 193.50 494.00 1021.00 1174.50 7846.50
2011 1389.50 1209.50 1000.50 785.69 a 589.00 260.00 5.50 16.50 164.50 578.67 a 1063.00 1468.00 8530.36
2012 1277.50 1175.62 c 866.45 a 528.00 434.00 203.79 a 3.50 18.71 b 202.76 a 601.92 a 860.00 1288.50 7460.74
2013 1676.00 1273.50 1057.74 b 14.50 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 4007.24
Period of Record Statistics
MEAN 1387.21 1161.07 1030.42 687.06 438.12 208.96 37.53 59.35 269.40 603.29 980.77 1308.45 8206.45
S.D. 160.38 144.07 144.99 111.96 83.93 73.61 31.57 39.71 79.55 88.13 115.40 146.49 541.45
SKEW 0.38 0.10 0.20 -0.09 -0.24 0.15 2.38 0.67 0.25 0.15 0.22 0.01 -0.02
MAX 1853.00 1505.00 1333.00 951.00 621.50 374.50 229.00 184.00 490.00 810.00 1220.00 1682.00 9243.50
MIN 1008.00 810.50 703.00 435.00 194.00 60.00 0.00 0.50 98.00 355.00 751.00 872.50 6936.21
NO YRS 104 104 104 102 103 104 103 103 104 101 101 102 83