BOULDER CITY, NEVADA

Monthly Total Growing Degree Days

(261071)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200407
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
1931 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1140.50 854.00 339.50 111.00 2445.00
1932 86.00 269.50 563.50 763.50 1015.50 1282.50 1495.00 1513.50 1315.50 839.00 546.00 100.00 9789.50
1933 93.50 88.50 548.50 613.50 847.00 1307.00 1629.00 1507.00 1322.50 1035.50 547.50 265.00 9804.50
1934 292.00 435.00 825.00 980.50 1223.50 1204.00 1573.00 1449.50 1237.50 1007.00 620.50 253.50 9999.00
1935 214.00 350.50 428.00 750.00 949.50 1423.00 1492.13 a 1480.50 1256.00 884.50 361.50 238.50 9828.13
1936 230.00 266.50 588.50 866.00 1138.00 1382.00 1522.50 1454.00 1183.00 851.00 511.50 195.00 9999.00
1937 8.50 197.00 450.50 704.00 1153.50 1314.00 1554.00 1582.00 1322.00 986.00 567.00 339.50 9999.00
1938 290.50 239.00 394.50 749.00 992.50 1309.50 1537.00 1476.00 1301.00 828.50 323.00 280.00 9720.50
1939 176.00 101.50 542.50 820.50 1100.00 1305.50 1539.50 1509.50 1078.00 809.50 546.50 366.50 9895.50
1940 262.50 293.50 651.50 780.50 1212.00 1437.50 1539.00 1543.50 1103.50 928.50 393.00 267.00 9999.00
1941 230.50 363.00 478.50 558.50 1061.00 1194.00 1484.50 1327.50 1060.50 687.00 455.00 243.50 9143.50
1942 266.00 211.00 467.50 731.00 963.50 1279.00 1603.00 1465.50 1219.00 926.00 528.50 350.50 9999.00
1943 269.50 372.00 582.00 834.50 1119.50 1208.50 1525.50 1420.50 1296.00 892.50 490.00 251.00 9999.00
1944 162.50 169.50 448.50 639.50 993.00 1106.00 1469.00 1504.00 1245.50 965.00 403.50 289.16 b 9395.16
1945 231.00 312.00 374.00 707.50 1050.00 1220.00 1528.00 1398.32 c 1257.00 921.00 464.50 195.50 9658.82
1946 219.50 276.00 529.00 887.50 1047.00 1357.50 1486.50 1471.00 1237.50 701.50 315.50 316.00 9844.50
1947 182.00 443.00 649.50 803.50 1187.00 1228.00 1522.00 1404.50 1328.50 902.50 346.00 164.50 9999.00
1948 260.00 223.50 347.50 735.50 1019.50 1250.50 1492.50 1466.00 1249.50 909.50 363.00 132.00 9449.00
1949 6.00 135.50 452.50 863.50 966.50 1274.00 1521.00 1418.00 1309.00 807.50 652.00 206.00 9611.50
1950 154.00 393.00 571.50 863.50 1030.00 1239.00 1464.00 1476.50 1147.50 1036.00 577.00 434.00 9999.00
1951 207.00 271.50 487.50 729.50 1012.50 1238.50 1515.50 1378.50 1271.00 815.00 374.50 151.00 9452.00
1952 128.50 278.50 297.00 721.50 1116.50 1159.50 1464.00 1522.50 1235.00 1049.00 339.83 a 201.00 9512.83
1953 351.33 a 299.50 573.00 0.00 z 804.00 1224.50 1504.00 1414.00 1301.50 833.50 521.50 218.50 9045.33
1954 230.00 474.50 413.50 902.00 1153.00 1209.50 1532.00 1379.50 1224.50 943.95 a 563.50 198.50 9999.00
1955 79.50 145.50 491.50 628.50 955.50 1239.50 1415.00 1391.00 1250.00 992.50 476.00 329.50 9394.00
1956 340.00 220.00 602.50 732.41 a 1062.50 1336.50 1472.00 1406.50 1323.50 840.00 429.50 302.00 9999.00
1957 185.50 459.50 593.50 714.00 917.00 1378.00 1502.00 1375.00 1226.00 751.00 312.50 294.50 9708.50
1958 263.50 367.50 364.00 690.00 1161.50 1276.00 1466.00 1507.00 1252.00 993.50 467.50 363.50 9999.00
1959 289.50 242.50 606.50 902.50 999.00 1386.00 1578.00 1424.50 1142.00 948.00 466.50 283.00 9999.00
1960 118.50 207.50 644.50 814.00 1073.50 1416.00 1598.00 1490.50 1270.00 857.00 440.00 216.50 9999.00
1961 263.00 388.50 539.00 793.50 1015.50 1409.00 1574.00 1463.50 1099.50 859.50 381.50 171.00 9957.50
1962 257.00 343.00 410.50 984.00 970.50 1282.50 1491.50 1535.00 1280.50 928.00 590.50 321.00 9999.00
1963 182.00 542.50 538.00 639.83 a 1126.85 a 1157.50 1527.00 1470.43 a 1263.10 a 1008.00 503.00 261.50 9999.00
1964 164.09 b 251.50 388.00 698.50 986.50 1236.00 1558.50 1469.40 a 1217.50 1092.00 387.50 320.00 9769.49
1965 306.00 340.50 456.00 634.66 a 924.50 1138.50 1437.00 1462.00 1066.00 981.50 528.00 194.50 9469.16
1966 161.00 211.50 609.00 845.00 1170.50 1308.00 1488.00 1521.00 1217.50 855.00 509.00 250.00 9999.00
1967 231.50 381.00 623.50 502.00 1040.50 1188.50 1576.00 1530.00 1232.00 1004.50 581.50 153.00 9999.00
1968 240.00 512.00 599.00 713.50 1065.50 1337.00 1482.00 1362.50 1238.50 924.50 520.00 146.50 9999.00
1969 310.00 211.00 475.50 781.00 1145.00 1236.50 1516.00 1610.50 1291.00 799.00 529.50 307.50 9999.00
1970 257.50 419.50 495.00 622.00 1110.00 1319.50 1562.00 1488.50 1167.00 822.50 524.50 190.50 9978.50
1971 291.50 351.50 595.00 711.00 866.50 1249.00 1581.50 1458.50 1188.50 750.00 406.00 119.50 9568.50
1972 190.00 452.50 881.50 834.50 1100.50 1321.50 1602.50 1442.50 1136.50 784.00 338.00 172.00 9999.00
1973 117.00 304.00 346.00 698.00 1128.50 1333.00 1527.00 1452.50 1177.50 869.50 416.50 288.00 9657.50
1974 92.00 285.50 619.48 a 719.00 1105.00 1410.00 1413.50 1412.50 1245.50 915.02 a 447.00 154.00 9818.50
1975 183.00 241.00 399.79 b 489.50 968.50 1230.50 1499.00 1412.00 1222.50 813.00 439.50 0.00 z 8898.29
1976 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1075.00 827.00 0.00 z 224.50 2126.50
1977 0.00 z 421.50 361.00 803.00 804.50 1373.00 1532.00 1463.50 1183.50 969.00 522.00 367.50 9800.50
1978 220.50 307.00 571.50 622.00 995.10 a 1335.00 1526.00 1424.00 1149.00 1017.50 392.50 113.00 9673.10
1979 53.50 221.50 456.00 462.00 j 988.56 d 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 385.50 277.00 2382.06
1980 256.00 368.00 379.00 684.64 b 867.50 1157.50 1511.50 1449.50 1217.50 893.00 546.00 449.50 9779.64
1981 379.00 341.50 444.00 859.50 999.00 1434.50 1563.50 1484.50 1194.00 760.50 576.00 308.50 9999.00
1982 178.50 328.50 451.00 669.50 1021.00 1209.00 1419.00 1413.00 1102.50 756.00 364.50 158.00 9070.50
1983 234.05 a 322.00 485.50 555.00 1047.00 1222.00 1444.50 1315.00 1247.00 861.50 475.50 291.00 9500.05
1984 306.00 357.00 611.50 723.00 1281.00 1291.00 1476.50 1411.50 1252.00 755.00 451.00 167.00 9999.00
1985 199.50 291.50 484.00 890.00 1135.00 1429.00 1586.17 a 1518.50 1078.97 a 903.50 396.00 318.00 9999.00
1986 439.00 445.50 732.50 790.50 1147.50 1414.50 1426.00 1542.50 1034.50 819.00 513.50 234.00 9999.00
1987 172.00 315.50 451.00 910.00 1047.00 1385.50 1431.50 1482.00 1278.50 1018.50 433.00 131.50 9999.00
1988 201.50 a 409.00 604.00 737.00 1068.00 1369.00 1597.50 1428.00 1213.00 1135.50 503.50 273.50 9999.00
1989 176.50 353.00 763.50 1016.00 1102.50 1342.50 1624.50 1460.50 1252.50 903.00 580.50 324.00 9999.00
1990 205.00 276.00 654.00 877.50 1047.50 1374.00 1556.00 1454.50 1254.50 945.00 529.00 167.50 9999.00
1991 202.00 514.00 392.50 726.50 938.50 1206.50 1553.50 1469.00 1244.50 1029.50 474.50 224.00 9975.00
1992 205.00 395.00 510.00 891.00 1170.00 1282.50 1477.50 1538.00 1310.00 989.00 397.50 120.50 9999.00
1993 190.50 254.50 619.00 832.00 1128.00 1281.50 1458.00 1466.00 1254.50 936.50 383.50 241.00 9999.00
1994 322.00 228.50 680.00 815.00 1039.50 1455.50 1594.50 1576.50 1265.00 831.50 258.50 239.00 9999.00
1995 192.00 506.50 493.00 697.00 914.00 1221.00 1602.50 1615.00 1360.50 996.50 678.00 360.50 9999.00
1996 365.00 482.50 664.50 906.50 1197.00 1442.00 1657.50 1614.00 1229.50 911.50 548.50 289.50 9999.00
1997 340.50 364.50 758.00 783.00 1318.50 1316.00 1526.00 1555.68 a 1256.50 891.00 530.50 226.00 9999.00
1998 322.00 250.00 544.50 643.50 921.50 1207.76 a 1593.50 1603.50 1212.00 867.50 489.00 288.00 9942.76
1999 370.50 397.50 666.50 a 611.90 a 1082.00 1331.50 1521.00 1543.05 b 1321.50 1091.50 668.00 373.00 9999.00
2000 276.50 j 0.00 z 0.00 z 0.00 z 734.00 m 1028.00 i 1224.00 h 1283.50 f 744.50 m 677.50 g 267.50 g 278.50 g 0.00
2001 174.50 f 156.00 l 239.00 p 410.50 o 895.00 j 871.50 l 693.00 q 791.00 p 687.00 o 640.00 m 371.50 n 39.50 z 0.00
2002 69.50 v 78.00 v 0.00 z 0.00 z 0.00 z 0.00 z 860.50 o 842.00 n 645.50 o 421.50 o 277.50 o 125.50 p 0.00
2003 223.50 q 114.50 n 329.50 m 658.50 1172.50 0.00 z 0.00 z 0.00 z 1314.00 1117.00 393.50 265.00 4920.50
2004 243.00 233.00 801.50 338.00 q 1097.06 d 1320.60 e 813.00 n 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3695.16
Period of Record Statistics
MEAN 221.59 319.49 537.06 755.38 1051.85 1294.68 1523.30 1470.83 1223.89 904.74 468.61 246.90 10044.65
S.D. 86.49 102.73 124.16 113.44 106.04 85.17 56.52 66.44 75.45 100.03 92.72 80.46 451.17
SKEW -0.16 0.06 0.47 -0.01 -0.11 0.04 0.06 0.17 -0.70 0.13 0.05 0.18 0.40
MAX 439.00 542.50 881.50 1016.00 1318.50 1455.50 1657.50 1615.00 1360.50 1135.50 678.00 449.50 11308.00
MIN 6.00 88.50 297.00 489.50 804.00 1106.00 1413.50 1315.00 1034.50 687.00 258.50 100.00 9070.50
NO YRS 67 68 68 66 69 67 66 66 69 69 69 69 63