SANDPOINT EXP STN, IDAHO

Monthly Total Heating Degree Days

(108137)

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
1910 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 514.00 856.50 990.50 2361.00
1911 1258.00 1081.00 811.00 630.50 473.50 201.50 100.50 156.00 368.00 688.50 1074.00 1206.00 8048.50
1912 1288.00 973.50 950.50 571.00 378.50 162.00 124.50 205.50 442.50 686.50 584.50 h 944.50 6727.00
1913 1302.00 1197.50 1008.50 586.50 398.50 134.48 a 107.50 0.00 z 302.07 a 648.50 807.00 1093.00 7585.55
1914 994.50 1017.00 787.50 510.00 301.73 a 218.50 26.00 69.50 352.00 547.50 790.00 1279.00 6893.23
1915 1190.50 838.50 697.00 417.50 346.50 219.50 85.50 2.00 284.00 518.50 910.00 1141.50 6651.00
1916 1556.00 1045.00 879.50 602.00 515.00 255.50 119.50 119.50 347.00 684.00 1021.00 1398.50 8542.50
1917 1280.50 1057.50 1141.50 729.00 434.55 c 277.50 47.50 65.50 217.50 611.00 765.50 991.50 7619.05
1918 1082.50 1063.00 792.50 564.00 449.50 139.50 75.95 a 163.00 216.00 537.50 879.00 1058.50 7020.95
1919 1127.50 940.50 898.00 527.50 414.88 a 218.00 68.00 56.32 a 267.41 a 771.50 1006.00 1289.50 7585.11
1920 1154.00 982.00 853.50 675.00 493.50 309.50 28.50 110.50 336.00 628.50 848.00 1044.70 a 7463.70
1921 1127.37 a 953.00 846.50 662.50 323.00 93.00 59.00 76.50 406.00 575.00 949.50 1195.50 7266.87
1922 1374.50 1195.00 989.00 656.50 427.00 65.00 39.50 36.50 240.00 519.50 938.00 1388.50 7869.00
1923 1089.50 1192.50 907.00 583.50 420.50 189.50 27.50 68.00 234.50 514.00 834.50 1089.00 7150.00
1924 1371.00 832.00 845.50 633.00 268.00 205.50 76.00 122.00 309.00 583.00 914.50 1370.50 7530.00
1925 1106.50 802.00 805.00 485.50 272.50 174.50 17.50 98.00 277.50 725.00 875.00 891.50 6530.50
1926 1144.00 826.00 715.50 467.00 370.00 170.50 42.50 100.50 431.50 542.50 805.50 1134.00 6749.50
1927 1231.50 957.50 874.00 620.00 463.00 148.50 55.50 61.00 325.50 560.00 839.50 1399.50 7535.50
1928 1182.00 1032.00 815.00 644.50 270.00 193.00 52.00 111.00 280.00 574.00 853.00 1180.00 7186.50
1929 1556.00 1257.50 832.50 660.50 364.00 208.50 75.50 47.00 372.50 618.00 983.00 1003.00 7978.00
1930 1577.50 855.50 809.00 453.00 404.00 167.50 g 40.00 53.50 240.50 665.00 915.00 1154.00 7167.00
1931 1064.50 951.00 826.50 558.50 304.00 173.00 44.00 69.75 a 328.00 611.00 1022.50 1219.00 7171.75
1932 1305.50 1172.50 972.50 581.50 386.00 157.00 102.50 91.50 318.50 623.00 780.50 1250.50 7741.50
1933 1137.00 1244.50 925.50 610.50 460.50 177.00 52.00 62.50 388.50 551.91 c 773.28 a 956.50 7339.69
1934 963.00 826.00 712.00 356.00 290.50 157.50 81.00 43.50 l 0.00 z 0.00 z 0.00 z 0.00 z 3386.00
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 37.00 z 672.50 1027.50 1089.50 2789.50
1936 1130.00 1501.00 954.00 506.50 233.00 147.50 14.50 g 77.50 a 301.50 574.00 1042.00 1059.00 7526.00
1937 1778.00 1086.50 874.00 649.50 313.50 162.00 36.00 143.00 231.50 489.50 823.50 1049.00 7636.00
1938 1120.50 986.50 837.00 549.50 376.50 126.50 24.50 167.00 143.50 521.50 959.00 1054.00 6866.00
1939 1007.00 1104.00 837.50 491.00 312.00 280.50 62.00 33.00 243.50 574.50 790.50 942.00 6677.50
1940 1185.50 912.00 729.00 503.00 261.00 115.50 32.50 41.00 115.00 485.00 997.50 1031.50 6408.50
1941 1099.50 822.00 665.50 447.50 344.50 144.00 4.00 77.50 364.50 577.00 777.50 1037.50 6361.00
1942 1293.50 965.50 834.00 540.50 416.00 257.00 37.50 72.00 237.50 526.00 962.50 1071.50 7213.50
1943 1382.08 a 954.00 1084.00 538.00 491.00 289.50 67.50 95.50 205.00 554.50 863.50 1155.50 7680.08
1944 1165.00 991.50 917.50 537.00 323.50 147.00 73.00 92.00 227.00 453.50 874.50 1181.00 6982.50
1945 1052.00 880.50 895.50 683.50 327.50 189.50 40.00 68.00 346.50 545.50 917.00 1121.50 7067.00
1946 1101.50 941.00 789.00 572.00 290.00 214.50 50.00 65.00 296.00 705.00 986.50 1071.00 7081.50
1947 1249.50 872.50 800.50 561.50 252.00 208.50 49.50 100.00 296.00 518.00 907.00 1021.50 6836.50
1948 1197.00 1066.50 968.00 650.00 364.00 89.00 92.00 81.50 274.00 625.50 904.00 1316.50 7628.00
1949 1638.50 1131.00 927.00 526.00 271.50 196.00 47.00 70.00 244.00 672.00 756.00 1130.50 7609.50
1950 1652.50 1007.50 977.00 654.00 453.00 202.00 41.00 36.00 251.00 574.50 899.50 968.00 7716.00
1951 1175.00 968.00 1043.00 478.50 f 346.50 222.00 43.40 a 87.00 309.00 647.50 878.79 a 1313.50 7033.69
1952 1267.50 1030.50 944.50 523.00 328.50 194.50 70.00 92.00 225.00 543.50 966.50 1083.00 7268.50
1953 881.00 880.50 835.50 657.00 422.50 259.00 62.00 75.00 236.00 548.00 784.00 974.00 6614.50
1954 1239.00 879.00 971.00 668.00 365.00 277.00 105.50 144.00 309.00 675.00 591.50 f 1080.00 6712.50
1955 1124.50 1075.50 1117.00 760.50 506.00 167.50 130.50 116.00 310.50 612.50 1137.00 1227.50 8285.00
1956 1149.50 1208.00 975.50 551.50 315.50 230.50 54.50 97.00 278.50 615.00 999.50 1054.50 7529.50
1957 1537.00 1065.50 934.50 584.00 222.50 175.50 85.50 125.50 237.50 661.00 923.50 973.00 7525.00
1958 1069.50 789.00 833.00 608.50 198.00 92.50 22.00 20.00 293.50 613.00 942.50 1062.50 6544.00
1959 1137.00 1025.50 845.50 568.00 486.50 183.50 83.00 155.00 341.50 620.50 1060.50 1105.50 7612.00
1960 1332.00 1049.00 953.50 606.50 454.00 173.50 24.00 148.50 279.00 598.50 895.00 1162.50 7676.00
1961 1103.50 813.50 818.50 649.00 399.50 83.50 23.00 9.00 367.50 667.50 1021.00 1194.00 7149.50
1962 1305.00 944.22 a 981.00 541.00 416.00 193.50 102.50 101.00 243.50 576.50 772.00 963.50 7139.72
1963 1376.00 805.00 786.50 589.50 350.00 146.00 67.50 56.50 149.00 515.50 826.50 1155.50 6823.50
1964 1072.50 1016.50 1005.00 673.50 412.50 154.50 60.50 188.50 383.50 597.50 916.50 1231.50 7712.50
1965 1057.00 949.50 1019.00 549.00 420.00 183.00 53.00 83.00 410.00 520.50 827.00 1075.00 7146.00
1966 1124.00 922.50 915.50 601.50 328.50 258.50 59.00 81.50 135.00 594.50 855.50 982.00 6858.00
1967 1018.00 834.50 904.50 689.00 397.50 130.50 42.00 12.50 123.00 557.00 861.00 1132.50 6702.00
1968 1154.00 835.50 759.50 650.50 410.50 199.00 58.50 123.50 285.50 684.50 903.00 1290.00 7354.00
1969 1458.50 1032.00 889.50 563.00 286.50 122.00 113.00 108.00 229.50 672.00 869.00 1077.50 7420.50
1970 1207.00 897.50 902.00 700.50 373.50 133.00 39.00 63.00 393.50 689.50 907.00 1193.50 7499.00
1971 1132.00 952.50 964.00 636.00 337.00 247.50 116.00 43.00 401.50 671.50 879.50 1163.00 7543.50
1972 1302.00 971.50 760.00 699.00 344.50 194.00 87.50 38.50 388.50 679.00 852.00 1276.00 7592.50
1973 1260.00 925.00 810.50 621.50 358.50 197.50 67.00 84.00 280.00 606.00 975.00 1017.50 7202.50
1974 1237.00 877.50 843.00 572.50 472.00 109.00 72.50 81.50 247.00 613.50 872.00 1017.00 7014.50
1975 1238.00 1082.50 937.50 697.50 400.50 224.50 35.50 143.00 302.00 623.50 950.50 1045.00 7680.00
1976 1060.50 971.50 1004.00 590.00 332.50 303.00 74.00 128.00 244.50 646.50 929.00 1069.00 7352.50
1977 1249.00 850.50 845.50 501.50 442.00 114.50 98.50 65.00 359.50 642.00 975.50 1206.00 7349.50
1978 1179.00 919.00 777.50 554.00 438.00 144.50 46.00 131.50 290.50 613.00 1020.50 1356.00 7469.50
1979 1588.00 992.50 833.50 629.00 349.50 0.00 z 0.00 z 8.50 208.00 555.00 1035.50 957.00 7156.50
1980 1366.50 962.50 905.00 467.50 290.00 209.50 58.00 153.00 255.50 614.50 858.50 996.50 7137.00
1981 992.50 889.00 748.00 586.00 372.00 308.50 83.50 36.50 279.50 700.00 852.50 1127.50 6975.50
1982 1202.50 1024.50 836.50 709.00 390.00 116.50 108.50 59.50 258.50 671.50 985.00 1151.50 7513.50
1983 985.00 838.00 761.50 608.50 323.50 182.50 118.00 0.00 z 360.00 600.50 835.50 1420.50 7033.50
1984 1087.50 924.50 767.50 586.00 480.50 244.50 62.00 62.00 355.00 722.82 a 914.50 1283.50 7490.32
1985 1263.50 1169.78 a 938.00 561.96 b 336.50 171.50 4.50 137.36 b 395.89 b 686.65 a 1253.28 a 1281.00 8199.92
1986 1065.50 969.50 707.50 604.50 348.50 84.00 133.00 4.13 a 333.50 563.50 909.00 1124.00 6846.63
1987 1160.00 877.50 775.00 429.50 279.00 115.00 59.50 90.50 215.00 600.00 802.00 1155.00 6558.00
1988 1212.50 928.50 803.00 469.00 354.50 195.00 97.00 82.00 308.00 470.50 825.00 1150.00 6895.00
1989 1108.50 1232.00 930.50 529.00 415.00 97.50 50.00 125.00 291.00 632.00 800.50 1043.50 7254.50
1990 1008.50 1017.50 836.00 508.00 394.50 230.50 45.50 63.00 141.00 627.50 809.50 1374.00 7055.50
1991 1261.00 774.50 938.00 587.50 398.00 249.50 53.50 51.50 212.50 643.50 909.50 1046.00 7125.00
1992 1058.00 831.00 700.00 528.50 296.50 113.50 88.50 121.00 361.50 571.00 900.50 1301.00 6871.00
1993 1332.50 1085.00 867.50 592.50 222.00 208.50 195.00 122.00 300.00 550.00 1075.00 1087.50 7637.50
1994 937.50 1048.50 806.00 503.00 325.50 233.00 37.00 45.00 188.50 633.50 995.50 1100.50 6853.50
1995 1144.00 825.50 875.00 617.00 295.50 187.50 61.00 147.00 203.50 650.00 777.50 1087.50 6871.00
1996 1228.00 1067.50 933.50 599.50 498.50 187.00 62.50 80.50 340.50 629.00 968.00 1248.50 7843.00
1997 1183.00 954.50 902.50 677.00 332.50 182.00 61.50 46.00 199.50 591.00 823.00 1092.00 7044.50
1998 1103.50 820.00 803.50 558.00 296.57 a 146.00 5.00 48.00 134.50 603.50 748.50 1123.50 6390.57
1999 994.00 875.50 826.50 660.00 478.50 246.00 137.50 40.00 328.00 622.50 758.00 1000.50 6967.00
2000 1130.50 957.00 830.50 573.50 397.50 188.50 76.98 a 83.00 324.00 599.50 1035.00 1195.05 a 7391.03
2001 1085.52 a 1022.00 798.00 657.00 367.50 243.00 70.00 45.00 151.50 638.00 780.52 a 1105.50 6963.53
2002 1078.00 973.00 986.00 588.00 427.00 159.50 48.00 79.00 257.50 736.00 870.00 952.00 7154.00
2003 977.00 881.00 788.50 561.50 395.50 123.00 25.50 22.00 222.00 487.00 1010.50 1101.00 6594.50
2004 1160.50 919.00 738.00 525.00 335.50 166.50 36.00 46.50 g 210.00 i 362.00 j 598.00 h 730.00 h 3880.50
2005 787.00 j 654.50 h 766.00 532.00 214.50 k 149.00 h 9.00 n 58.00 i 226.00 h 362.00 j 662.50 h 800.50 l 1298.00
2006 647.50 i 980.50 851.50 551.50 342.00 113.00 16.50 53.00 230.00 467.00 f 874.00 1140.50 5152.50
2007 1237.50 890.00 780.00 585.00 358.50 175.00 9.00 60.00 244.50 625.00 901.50 905.50 f 5866.00
2008 1298.00 959.50 928.50 756.50 340.00 245.00 30.50 107.50 0.00 z 623.50 810.00 883.00 j 6099.00
2009 1195.50 961.50 1014.50 0.00 z 373.50 162.50 40.50 24.50 h 0.00 z 532.50 i 851.50 0.00 z 4599.50
2010 246.50 y 568.00 i 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 10.50 z 126.50 r 174.00 t 153.00 w 0.00 z 0.00
2011 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 93.00 f 9.00 g 177.78 c 626.00 971.50 1128.50 2903.78
2012 1121.50 986.54 b 876.50 551.50 438.00 262.50 26.35 a 44.43 a 216.67 c 597.78 a 800.56 c 1050.38 a 6972.71
2013 1224.50 b 896.00 a 888.50 29.50 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 39.50 z 3009.00
Period of Record Statistics
MEAN 1201.54 975.95 869.02 584.46 368.11 184.14 62.50 83.68 280.08 605.59 901.75 1127.84 7241.72
S.D. 165.60 123.76 94.94 75.25 70.84 55.40 33.88 42.85 74.68 63.85 94.49 120.87 447.92
SKEW 1.11 1.09 0.36 -0.17 -0.02 0.16 0.89 0.43 -0.08 -0.04 0.71 0.54 0.27
MAX 1778.00 1501.00 1141.50 760.50 515.00 309.50 195.00 205.50 442.50 771.50 1253.28 1420.50 8542.50
MIN 881.00 774.50 665.50 356.00 198.00 65.00 4.00 2.00 115.00 453.50 748.50 891.50 6361.00
NO YRS 98 99 100 97 98 96 96 93 95 97 97 96 84