IRON MTN, CALIFORNIA

Monthly Total Growing Degree Days

(044297)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1935 309.00 j 568.00 662.00 927.00 1127.00 1543.00 1674.50 1624.50 1418.50 1014.00 551.50 480.50 9999.00
1936 464.00 488.00 885.00 1132.50 1359.00 1539.50 1749.50 1681.50 1387.50 1088.00 707.00 415.50 9999.00
1937 113.50 444.50 682.00 943.50 1294.50 1481.00 1723.00 1722.00 1526.50 1166.50 727.00 611.00 9999.00
1938 551.50 456.50 618.00 955.00 1235.00 1473.50 1689.00 1661.00 1482.50 1036.00 555.50 511.50 9999.00
1939 417.50 304.00 751.00 1016.00 1285.00 1460.00 1700.50 1720.00 1250.50 1020.50 741.50 559.50 9999.00
1940 507.00 513.50 843.00 971.00 1382.00 1581.00 1675.50 1702.00 1311.00 1099.00 606.00 525.50 9999.00
1941 411.00 565.00 695.50 784.50 1255.50 1370.00 1667.00 1528.00 1205.00 923.00 665.50 432.00 9999.00
1942 468.50 416.00 689.00 917.00 1178.50 1452.50 1781.50 1628.50 1351.50 1106.00 734.50 515.50 9999.00
1943 457.50 564.00 772.50 992.00 1297.50 1314.50 1698.50 1600.00 1458.50 1108.00 679.00 482.50 9999.00
1944 305.50 g 406.00 646.50 857.00 1187.50 1276.55 a 1605.00 1647.00 1391.00 1114.00 562.50 483.00 9999.00
1945 420.50 498.50 588.50 890.50 1259.50 1389.50 1705.50 1617.00 1445.50 1131.50 650.50 365.50 9999.00
1946 459.00 409.50 726.00 1062.50 1243.00 1516.50 1650.50 1662.50 1439.50 926.00 523.50 529.00 9999.00
1947 378.00 605.00 826.00 990.00 1348.50 1422.00 1695.00 1556.50 1459.50 1074.50 538.50 360.50 9999.00
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 499.00 589.50 640.00 907.50 1421.50 1634.00 1803.50 1686.00 1396.50 1050.50 772.50 423.50 9999.00
2007 378.50 608.50 911.00 1011.00 1389.00 1546.00 1780.50 1734.00 1404.50 1101.00 842.00 380.50 9999.00
2008 396.00 362.00 i 805.00 1002.00 1180.50 1581.50 1654.50 1711.00 1477.00 1164.50 665.50 f 424.50 9999.00
2009 462.50 g 514.50 802.12 c 968.50 1220.00 f 1420.50 1819.04 c 1678.77 e 1543.00 1021.00 764.50 385.00 9999.00
2010 480.00 538.50 708.00 865.50 1138.00 1515.00 1781.50 1687.00 1454.00 1119.62 a 699.00 542.00 9999.00
2011 510.47 a 320.00 i 625.00 h 984.31 a 1181.00 1471.55 a 1684.52 c 1360.00 g 1464.64 b 1135.78 b 626.50 373.60 b 9432.37
2012 559.00 585.37 b 788.84 c 1023.75 b 1403.00 1564.00 1669.83 e 1722.64 b 1511.38 a 927.50 f 497.00 k 486.46 e 9999.00
2013 365.00 g 481.50 953.50 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 1435.00
Period of Record Statistics
MEAN 433.07 515.48 743.53 945.99 1248.79 1477.95 1701.63 1650.62 1410.98 1091.57 675.80 448.37 12317.05
S.D. 101.79 88.91 102.04 100.15 100.89 85.61 57.54 60.37 77.03 88.60 92.59 84.37 397.92
SKEW -0.81 -0.11 0.27 -0.03 0.01 -0.31 -0.01 -0.01 -0.85 0.10 -0.18 0.06 0.14
MAX 664.00 708.50 1015.00 1198.00 1514.50 1634.00 1819.04 1796.00 1543.00 1312.50 867.00 647.00 13292.50
MIN 95.50 304.00 535.50 688.00 1008.00 1263.00 1565.50 1525.00 1197.50 876.00 465.00 291.50 9999.00
NO YRS 73 75 76 77 76 76 77 76 78 76 74 77 63