BOULDER CITY, NEVADA

Monthly Total Growing Degree Days

(261071)

Base Temperature = 50 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 840.50 544.00 152.50 0.00 1537.00
1932 0.50 86.50 262.50 467.00 705.50 982.50 1185.00 1203.50 1015.50 529.00 246.00 15.00 6698.50
1933 1.00 5.00 243.00 324.50 539.00 1007.00 1319.00 1197.00 1022.50 725.50 271.50 36.00 6691.00
1934 35.50 156.00 515.00 680.50 913.50 904.00 1263.00 1139.50 937.50 697.00 342.00 31.00 7614.50
1935 42.50 113.00 154.00 450.00 639.50 1123.00 1182.13 a 1170.50 956.00 578.00 81.50 14.00 6504.13
1936 18.50 47.50 299.50 567.00 828.00 1082.00 1212.50 1144.00 883.00 541.00 221.00 3.00 6847.00
1937 0.00 21.50 163.00 404.00 843.50 1014.00 1244.00 1272.00 1022.00 676.00 267.00 65.00 6992.00
1938 32.00 36.00 109.50 449.00 682.50 1009.50 1227.00 1166.00 1001.00 518.50 64.50 63.50 6359.00
1939 1.00 5.00 264.00 526.00 790.00 1005.50 1229.50 1199.50 778.00 499.50 246.50 110.00 6654.50
1940 50.50 50.00 346.50 482.00 902.00 1137.50 1229.00 1233.50 803.50 618.50 119.50 55.50 7028.00
1941 20.00 89.00 173.50 264.50 751.00 894.00 1174.50 1017.50 760.50 377.00 194.00 32.50 5748.00
1942 43.50 32.00 170.50 431.00 653.50 979.00 1293.00 1155.50 919.00 616.00 233.00 86.50 6612.50
1943 33.00 126.00 275.50 547.50 809.50 908.50 1215.50 1110.50 996.00 582.50 192.00 13.50 6810.00
1944 22.50 17.50 163.00 339.50 683.00 806.00 1159.00 1194.00 945.50 655.00 117.50 21.91 b 6124.41
1945 40.00 65.50 118.50 415.00 740.00 920.00 1218.00 1088.32 c 957.00 611.00 174.00 18.50 6365.82
1946 13.00 88.00 230.50 587.50 737.00 1057.50 1176.50 1161.00 937.50 391.50 55.50 60.00 6495.50
1947 19.00 166.50 339.50 503.50 877.00 928.00 1212.00 1094.50 1028.50 592.50 95.50 13.00 6869.50
1948 58.50 52.50 89.50 435.50 709.50 950.50 1182.50 1156.00 949.50 599.50 94.50 8.00 6286.00
1949 0.00 23.50 160.50 566.00 656.50 974.00 1211.00 1108.00 1009.00 502.00 352.00 59.00 6621.50
1950 25.50 146.50 271.50 563.50 720.00 939.00 1154.00 1166.50 847.50 726.00 291.00 136.50 6987.50
1951 36.50 71.00 217.50 429.50 702.50 938.50 1205.50 1068.50 971.00 507.00 115.50 14.50 6277.50
1952 6.50 54.50 92.00 421.50 806.50 859.50 1154.00 1212.50 935.00 739.00 127.76 a 31.00 6439.76
1953 75.95 a 83.50 281.00 0.00 z 494.00 924.50 1194.00 1104.00 1001.50 530.00 253.00 21.00 5962.45
1954 32.50 203.00 145.50 602.00 843.00 909.50 1222.00 1069.50 924.50 633.95 a 274.00 10.00 6869.45
1955 2.00 23.50 206.00 330.00 645.50 939.50 1105.00 1081.00 950.00 682.50 206.50 74.50 6246.00
1956 73.00 36.00 312.50 432.93 a 752.50 1036.50 1162.00 1096.50 1023.50 530.00 162.00 52.50 6669.93
1957 8.00 212.50 286.50 415.00 607.00 1078.00 1192.00 1065.00 926.00 441.00 67.50 39.50 6338.00
1958 25.00 101.00 105.00 398.50 851.50 976.00 1156.00 1197.00 952.00 683.50 203.50 84.00 6733.00
1959 49.50 30.50 296.50 602.50 689.00 1086.00 1268.00 1114.50 842.00 638.00 172.00 36.50 6825.00
1960 7.00 18.00 340.50 514.50 763.50 1116.00 1288.00 1180.50 970.00 547.00 148.50 14.50 6908.00
1961 31.00 111.50 231.00 493.50 705.50 1109.00 1264.00 1153.50 799.50 550.50 114.50 7.00 6570.50
1962 75.50 111.00 146.00 684.00 660.50 982.50 1181.50 1225.00 980.50 618.00 296.00 75.50 7036.00
1963 9.50 268.50 238.50 345.52 a 816.85 a 857.50 1217.00 1160.43 a 963.10 a 698.00 208.00 17.00 6799.90
1964 27.26 b 37.50 130.50 400.50 676.50 936.00 1248.50 1159.40 a 917.50 782.00 148.00 110.00 6573.66
1965 80.50 117.50 166.50 363.62 a 614.50 838.50 1127.00 1152.00 766.00 671.50 246.00 21.00 6164.62
1966 9.50 25.50 323.00 545.00 860.50 1008.00 1178.00 1211.00 917.50 545.00 217.50 46.00 6886.50
1967 32.00 118.00 317.50 210.00 730.50 888.50 1266.00 1220.00 932.00 694.50 292.00 8.00 6709.00
1968 33.50 224.50 289.00 413.50 755.50 1037.00 1172.00 1052.50 938.50 614.50 228.00 8.50 6767.00
1969 62.00 13.50 211.50 481.00 835.00 936.50 1206.00 1300.50 991.00 489.00 236.00 69.50 6831.50
1970 60.50 151.00 190.00 324.00 800.00 1019.50 1252.00 1178.50 867.00 512.50 224.50 20.50 6600.00
1971 103.50 116.00 317.00 412.00 556.50 949.00 1271.50 1148.50 888.50 465.00 126.00 11.50 6365.00
1972 9.50 198.00 571.50 534.50 790.50 1021.50 1292.50 1132.50 836.50 474.00 67.50 22.50 6951.00
1973 3.00 51.00 74.00 398.00 818.50 1033.00 1217.00 1142.50 877.50 559.50 173.00 43.50 6390.50
1974 0.00 51.50 321.88 a 419.00 795.00 1110.00 1103.50 1102.50 945.50 607.60 a 153.50 2.50 6612.48
1975 38.50 43.00 152.86 b 199.50 658.50 930.50 1189.00 1102.00 922.50 505.50 180.50 0.00 z 5922.36
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 775.00 517.00 0.00 z 14.50 1306.50
1977 0.00 z 159.50 92.00 506.50 494.50 1073.00 1222.00 1153.50 883.50 659.00 232.00 100.50 6576.00
1978 4.50 78.50 262.50 322.50 685.10 a 1035.00 1216.00 1114.00 849.00 707.50 158.00 0.50 6433.10
1979 0.00 26.50 179.50 262.00 j 678.56 d 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 125.00 51.50 1061.06
1980 24.00 98.50 83.00 390.00 b 557.50 857.50 1201.50 1139.50 917.50 583.00 257.50 158.00 6267.50
1981 95.00 102.00 154.00 559.50 689.00 1134.50 1253.50 1174.50 894.00 450.50 292.50 57.50 6856.50
1982 7.50 130.50 156.00 372.50 711.00 909.00 1109.00 1103.00 802.50 446.00 82.00 4.00 5833.00
1983 28.93 a 92.50 183.00 257.50 737.00 922.00 1134.50 1005.00 947.00 551.50 225.00 37.00 6120.93
1984 69.00 83.50 304.50 423.00 971.00 991.00 1166.50 1101.50 952.00 445.00 190.50 12.00 6709.50
1985 3.50 102.00 194.00 590.00 825.00 1129.00 1276.17 a 1208.50 778.97 a 593.50 170.00 60.00 6930.63
1986 133.50 207.00 423.50 490.50 837.50 1114.50 1116.00 1232.50 734.50 509.00 213.50 3.50 7015.50
1987 26.50 94.50 165.00 610.00 737.00 1085.50 1121.50 1172.00 978.50 708.50 145.50 10.50 6855.00
1988 21.70 a 133.50 301.00 437.00 758.00 1069.00 1287.50 1118.00 913.00 825.50 228.00 63.50 7155.70
1989 24.50 152.00 455.50 716.00 792.50 1042.50 1314.50 1150.50 952.50 593.00 288.50 58.50 7540.50
1990 28.50 92.50 361.50 577.50 737.50 1074.00 1246.00 1144.50 954.50 635.00 245.50 18.00 7115.00
1991 17.00 234.00 110.00 426.50 628.50 906.50 1243.50 1159.00 944.50 729.00 199.00 5.00 6602.50
1992 17.50 117.00 208.00 591.00 860.00 982.50 1167.50 1228.00 1010.00 679.00 134.00 0.00 6994.50
1993 7.50 20.00 314.00 532.00 818.00 981.50 1148.00 1156.00 954.50 626.50 116.00 26.50 6700.50
1994 64.00 37.00 370.00 515.00 729.50 1155.50 1284.50 1266.50 965.00 521.50 61.50 16.00 6986.00
1995 6.50 228.50 195.50 397.50 604.00 921.00 1292.50 1305.00 1060.50 686.50 378.00 107.50 7183.00
1996 92.50 231.00 355.00 606.50 887.00 1142.00 1347.50 1304.00 929.50 602.00 254.50 57.50 7809.00
1997 102.00 104.50 451.00 490.50 1008.50 1016.00 1216.00 1245.68 a 956.50 581.00 230.50 24.00 7426.18
1998 65.50 23.50 254.50 346.50 611.50 907.76 a 1283.50 1293.50 912.00 557.50 195.50 84.50 6535.76
1999 89.50 137.00 356.50 a 320.69 a 772.00 1031.50 1211.00 1233.05 b 1021.50 781.50 370.00 83.50 7407.74
2000 93.50 j 0.00 z 0.00 z 0.00 z 554.00 m 818.00 i 994.00 h 1033.50 f 574.50 m 437.50 g 64.00 g 56.50 g 0.00
2001 27.00 f 26.50 l 95.50 p 261.00 o 685.00 j 691.50 l 553.00 q 641.00 p 537.00 o 460.00 m 218.00 n 2.00 z 0.00
2002 11.00 v 22.50 v 0.00 z 0.00 z 0.00 z 0.00 z 700.50 o 672.00 n 495.50 o 261.50 o 127.50 o 12.50 p 0.00
2003 83.50 q 21.50 n 153.00 m 358.50 862.50 0.00 z 0.00 z 0.00 z 1014.00 807.00 120.00 50.00 3212.00
2004 22.50 30.50 500.00 208.00 q 787.06 d 1020.60 e 643.00 n 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2360.66
Period of Record Statistics
MEAN 34.33 95.81 246.22 457.74 741.88 994.68 1213.30 1160.83 923.89 595.57 193.69 40.40 6719.87
S.D. 30.92 66.31 111.07 111.66 105.99 85.17 56.52 66.44 75.46 99.49 77.58 35.38 394.99
SKEW 1.06 0.70 0.69 0.01 -0.11 0.03 0.05 0.17 -0.70 0.14 0.21 1.12 0.21
MAX 133.50 268.50 571.50 716.00 1008.50 1155.50 1347.50 1305.00 1060.50 825.50 378.00 158.00 7809.00
MIN 0.00 5.00 74.00 199.50 494.00 806.00 1103.50 1005.00 734.50 377.00 55.50 0.00 5748.00
NO YRS 67 68 68 66 69 67 66 66 69 69 69 69 63