IRON MOUNTAIN, CALIFORNIA

Monthly Total Growing Degree Days

(044297)

Base Temperature = 40 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1632.50 1608.50 1396.50 1089.50 374.50 j 307.00 6034.00
1949 95.50 309.00 645.00 992.00 1159.50 1474.50 1687.43 a 1599.50 1500.50 998.00 849.00 372.00 9999.00
1950 276.00 563.00 775.50 1069.50 1200.00 1415.00 1653.50 1653.00 1350.00 1204.50 797.00 647.00 9999.00
1951 415.50 457.00 707.00 922.00 1220.00 1400.00 1707.50 1581.50 1446.00 1060.50 596.50 326.50 9999.00
1952 283.00 481.00 535.50 930.00 1346.00 1356.00 1649.00 1718.00 1455.00 1272.00 585.00 389.50 9999.00
1953 582.00 484.00 744.50 904.50 1008.00 1405.50 1764.50 1654.00 1463.00 1090.00 752.50 434.00 9999.00
1954 385.50 708.50 646.00 1094.50 1306.00 1409.50 1716.88 a 1578.00 1438.00 1153.00 802.50 443.50 9999.00
1955 289.50 373.50 699.00 827.50 1141.50 1410.00 1609.50 1581.50 1423.00 1203.00 680.00 519.50 9999.00
1956 503.50 361.00 743.00 916.50 1234.50 1509.00 1673.00 1601.50 1531.50 1029.00 637.50 514.50 9999.00
1957 366.50 625.00 776.50 926.50 1111.00 1562.00 1723.50 1622.50 1417.00 968.50 540.50 489.50 9999.00
1958 462.00 542.50 564.00 921.00 1390.50 1497.50 1687.00 1709.00 1477.76 a 1221.50 689.00 597.50 9999.00
1959 519.50 426.50 831.00 1084.00 1204.50 1576.50 1799.00 1606.00 1365.50 1133.00 710.50 469.50 9999.00
1960 277.00 403.00 844.50 1008.00 1227.00 1611.50 1759.00 1677.50 1470.50 1055.00 658.00 411.50 9999.00
1961 528.00 536.00 739.00 984.00 1206.00 1597.00 1731.00 1609.50 1263.50 1040.00 557.50 374.50 9999.00
1962 432.00 503.00 546.00 1132.00 1132.50 1441.50 1696.50 1721.00 1453.00 1109.50 788.00 534.50 9999.00
1963 332.00 676.00 690.50 792.00 1263.50 1311.00 1702.50 1635.50 1413.50 1150.50 689.50 468.50 9999.00
1964 322.50 401.00 612.50 863.50 1149.50 1388.50 1689.00 1639.00 1358.00 1268.50 548.50 445.00 9999.00
1965 481.50 504.00 642.50 868.50 1153.00 1263.00 1653.00 1658.00 1262.50 1193.00 712.50 394.50 9999.00
1966 312.50 360.50 740.50 1039.00 1320.50 1477.24 a 1683.50 1709.50 1417.00 1062.50 714.00 498.50 9999.00
1967 453.00 535.00 753.50 688.00 1212.50 1361.00 1759.50 1746.50 1393.50 1177.50 798.00 338.86 b 9999.00
1968 448.00 679.00 780.00 847.50 1210.00 1474.00 1671.93 a 1525.00 1412.00 1092.50 701.00 310.00 9999.00
1969 500.00 440.50 664.50 931.00 1305.00 1387.50 1665.50 1789.50 1446.50 979.00 722.50 490.50 9999.00
1970 384.00 584.50 693.50 761.50 1253.00 1474.00 1680.00 1672.00 1322.50 999.00 700.50 376.00 9999.00
1971 444.50 538.50 727.00 889.00 1049.50 1432.50 1754.00 1581.00 1365.50 876.00 596.00 311.00 9999.00
1972 348.50 599.50 987.50 976.00 1231.00 1452.00 1748.00 1589.00 1343.00 900.00 545.50 346.00 9999.00
1973 321.50 471.00 0.00 z 892.00 1336.50 1569.00 1747.50 1646.00 1362.50 1095.50 630.00 524.00 9999.00
1974 366.00 495.50 793.00 914.50 1271.00 1596.00 1657.00 1635.00 1482.00 1113.00 694.50 361.50 9999.00
1975 416.50 419.00 638.50 714.50 1196.00 1461.00 1708.50 1628.00 1451.50 1036.50 669.00 537.50 9999.00
1976 514.50 589.50 687.00 822.00 1285.00 1476.00 1662.50 1550.50 1268.28 a 1036.50 715.50 434.00 9999.00
1977 402.00 605.50 581.50 988.00 1009.50 1546.50 1739.00 1668.50 1376.50 1143.00 759.00 572.50 9999.00
1978 424.50 515.50 808.00 868.50 1218.00 1552.50 1743.50 1617.50 1336.50 1216.50 589.00 291.50 9999.00
1979 211.00 380.50 653.00 911.00 1216.00 1492.50 1652.50 1531.50 1492.50 1130.00 604.00 497.50 9999.00
1980 515.00 588.50 661.00 911.00 1058.50 1434.00 1747.50 1627.50 1412.50 1137.50 748.50 645.00 9999.00
1981 603.00 556.00 743.00 1068.00 1231.50 1631.00 1755.50 1701.00 1452.86 b 1001.00 765.00 542.50 9999.00
1982 407.50 564.50 692.50 940.50 1205.00 1351.50 1584.50 1590.50 1292.50 994.50 125.50 y 94.50 u 9999.00
1983 486.00 508.00 720.50 781.00 1245.50 1411.50 1643.50 1529.00 1472.00 1074.00 684.00 499.50 9999.00
1984 520.50 548.50 816.50 913.50 1411.50 1442.50 1649.00 1612.50 1465.50 960.00 615.50 348.00 9999.00
1985 421.00 457.00 687.00 1072.00 1286.50 1559.00 1746.50 1667.50 1197.50 1045.50 596.50 498.50 9999.00
1986 620.50 576.50 879.00 928.50 1215.00 1554.00 1597.50 1702.00 1212.00 1010.00 730.50 449.00 9999.00
1987 401.50 556.00 716.50 1103.50 1282.50 1572.50 1632.00 1665.50 1404.50 1153.00 618.00 301.50 9999.00
1988 403.50 574.00 787.00 929.00 1275.13 a 1471.00 1772.50 1626.50 1394.00 1297.50 708.50 465.00 9999.00
1989 415.50 518.00 912.00 1198.00 1314.50 1513.50 1770.00 1616.00 1438.00 0.00 z 788.00 521.50 9999.00
1990 439.00 459.50 841.50 1026.50 1234.00 1518.62 a 1709.00 1593.00 1427.50 1138.50 720.50 307.50 9999.00
1991 383.50 680.00 537.50 876.21 a 1125.00 1350.50 1633.50 1599.00 1413.50 1202.50 686.38 a 428.00 9999.00
1992 455.50 604.00 721.00 1045.00 1313.00 1434.50 1621.00 1668.00 1441.00 1108.00 621.50 300.50 9999.00
1993 391.50 472.50 827.00 892.50 1274.00 1383.00 1565.50 1591.50 1364.00 1071.50 493.45 a 370.00 9999.00
1994 471.50 442.50 861.50 1049.50 1224.50 1604.00 1694.50 1727.00 1464.50 1016.00 465.00 419.00 9999.00
1995 445.00 678.00 767.50 891.50 1121.00 1420.00 1733.00 1796.00 1542.00 1147.50 867.00 525.50 9999.00
1996 525.00 671.00 830.00 1054.00 1370.00 1550.00 1806.50 1737.00 1409.00 1117.50 745.00 477.50 9999.00
1997 496.50 550.50 936.00 980.50 1514.50 1470.00 1639.50 1229.00 i 1482.50 1069.00 727.50 411.00 9999.00
1998 498.50 438.50 731.50 833.00 1111.00 0.00 z 1764.00 1744.50 1371.50 1037.00 674.00 449.00 9999.00
1999 551.00 0.00 z 700.00 815.36 b 1225.50 1471.50 1649.00 1651.50 1426.50 1192.95 c 782.50 518.50 9999.00
2000 573.50 588.12 d 751.50 1115.89 b 1395.50 1560.52 a 1713.00 1676.14 b 1411.73 d 1028.68 a 523.93 b 536.50 9999.00
2001 410.23 a 429.69 b 827.50 902.50 1468.22 b 1569.31 a 1659.00 1683.50 1483.00 1170.77 a 786.21 a 365.91 c 9999.00
2002 459.00 566.00 738.50 1051.50 1282.00 1589.00 1783.00 1669.00 1458.50 1054.50 778.50 445.50 9999.00
2003 664.00 544.50 782.50 860.77 d 1337.00 1530.00 0.00 z 1716.92 e 1525.00 1312.50 569.50 463.50 9999.00
2004 487.50 477.00 1015.00 1010.50 1329.50 1532.50 1739.50 1674.00 1394.00 1010.50 558.00 459.50 9999.00
2005 319.50 j 487.50 782.00 911.50 1325.50 1468.50 1801.00 1669.50 1368.50 1113.00 776.00 462.00 9999.00
2006 499.00 589.50 644.50 909.44 c 1416.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4058.44
Period of Record Statistics
MEAN 432.32 520.94 739.64 940.51 1244.11 1478.07 1698.54 1646.97 1408.25 1097.54 679.68 442.77 12296.05
S.D. 102.52 91.13 102.96 106.15 104.78 83.87 57.77 61.37 73.96 93.86 92.97 88.09 396.24
SKEW -0.53 -0.05 0.29 0.06 0.03 -0.23 -0.14 0.23 -0.83 0.13 -0.26 0.11 0.23
MAX 664.00 708.50 1015.00 1198.00 1514.50 1631.00 1806.50 1796.00 1542.00 1312.50 867.00 647.00 13292.50
MIN 95.50 309.00 535.50 688.00 1008.00 1263.00 1565.50 1525.00 1197.50 876.00 465.00 291.50 9999.00
NO YRS 57 57 57 58 58 56 57 57 58 57 56 57 49