SAN LUIS 1S, COLORADO

Monthly Total Heating Degree Days

(057430)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200606
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
1980 0.00 z 0.00 z 0.00 z 0.00 z 540.00 180.50 59.50 161.50 329.50 750.50 1011.50 1085.52 a 4118.52
1981 1227.50 1085.00 1054.00 616.50 532.00 143.00 68.50 177.50 325.50 709.90 a 891.50 1340.50 8171.40
1982 1394.00 1172.00 951.50 802.50 552.50 260.50 99.50 123.00 345.50 802.00 1042.50 1374.00 8919.50
1983 1443.00 1110.00 992.50 877.00 614.50 346.00 109.50 116.00 264.50 700.50 1075.00 1415.50 9064.00
1984 1731.00 1424.50 1186.00 839.00 411.50 264.00 76.50 138.50 319.00 811.50 1026.50 1280.50 9508.50
1985 1501.00 1225.50 951.70 a 712.00 483.00 236.50 125.00 161.00 433.00 694.00 1035.00 1332.00 8889.70
1986 1228.50 1015.00 904.17 a 699.50 530.00 249.00 139.50 160.50 0.00 z 767.50 1003.50 1392.50 8089.67
1987 1475.00 1105.50 1096.00 769.50 619.00 200.50 159.50 184.00 411.00 631.50 1071.00 1431.00 9153.50
1988 1651.00 1293.50 1038.50 690.00 523.00 166.50 51.50 m 88.50 i 393.00 597.00 1075.50 1397.50 8825.50
1989 1544.50 1202.50 801.00 539.50 352.00 165.50 24.00 118.50 308.00 699.00 991.50 1425.50 8171.50
1990 1491.00 1145.00 904.00 649.00 486.50 122.00 63.50 137.00 250.00 696.50 1017.50 1526.00 8488.00
1991 1617.00 1121.00 1012.50 742.00 460.50 196.00 59.50 86.00 338.00 649.50 1248.00 1725.00 9255.00
1992 1797.50 1361.00 1082.00 600.00 380.50 239.00 106.00 176.00 329.00 620.50 1290.50 1623.22 b 9605.22
1993 1395.00 1173.41 a 1047.50 752.00 488.00 231.00 63.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5149.91
1994 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
1995 0.00 z 0.00 z 920.50 797.00 613.00 251.50 130.50 72.00 337.50 679.00 918.50 1263.50 5983.00
1996 917.50 k 1005.00 1019.00 749.00 314.00 119.50 49.50 104.00 352.00 677.50 882.00 1195.00 6466.50
1997 1365.00 1049.00 837.00 752.00 425.00 181.00 85.00 95.00 188.50 651.50 994.50 1500.50 8124.00
1998 1312.00 1138.00 959.50 775.00 412.00 201.00 47.00 101.00 220.50 628.00 931.00 1228.00 7953.00
1999 1186.50 987.00 828.50 802.50 589.00 249.00 68.50 128.50 0.00 z 585.90 a 897.50 1356.00 7678.90
2000 1177.50 994.29 a 923.00 710.77 d 353.63 d 125.17 a 52.50 74.50 270.00 642.50 1210.50 1285.00 7819.36
2001 1441.50 1058.00 849.50 533.00 317.50 86.50 5.50 75.00 i 224.50 541.98 a 814.50 1176.50 7048.98
2002 1295.50 1126.00 902.10 a 456.72 a 321.50 24.50 12.00 i 33.50 221.00 578.00 898.00 1157.00 7013.82
2003 988.50 955.00 849.50 584.00 343.50 151.50 3.00 31.50 267.00 336.00 i 867.00 1176.00 6216.50
2004 1262.50 1288.50 778.00 607.00 326.50 107.50 67.00 104.50 274.50 568.50 909.50 1248.00 7542.00
2005 1116.50 954.50 913.00 641.50 360.50 141.50 13.50 93.50 187.00 524.50 832.50 1258.60 a 7037.10
2006 0.00 z 0.00 z 858.50 545.00 351.50 130.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1885.00
Period of Record Statistics
MEAN 1392.80 1129.96 946.38 689.68 450.02 183.41 72.85 117.16 299.48 661.19 997.29 1341.37 8513.45
S.D. 203.29 126.90 102.10 108.16 103.28 69.45 42.03 43.19 68.64 77.57 124.59 151.88 758.61
SKEW 0.12 0.61 0.39 -0.33 0.21 0.03 0.23 -0.27 0.09 0.20 0.76 0.66 -0.26
MAX 1797.50 1424.50 1186.00 877.00 619.00 346.00 159.50 184.00 433.00 811.50 1290.50 1725.00 9605.22
MIN 988.50 954.50 778.00 456.72 314.00 24.50 3.00 31.50 187.00 524.50 814.50 1085.52 7037.10
NO YRS 22 23 25 25 26 26 23 22 22 23 24 24 15