MIDWAY SAND ISLAND, PACIFIC OCEAN

Monthly Total Growing Degree Days

(914490)

Base Temperature = 40 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 199108
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
1953 831.50 744.50 871.50 883.00 1006.50 1092.00 1234.83 a 1223.50 1142.50 1118.00 1042.50 863.50 9999.00
1954 796.00 695.50 774.00 779.50 935.68 a 1096.50 1171.36 c 1198.67 a 1130.50 1124.50 961.50 908.00 9999.00
1955 812.50 709.00 773.50 826.50 1025.50 1133.50 1183.00 1175.00 1130.17 a 1087.58 a 928.00 855.50 9999.00
1956 509.00 j 742.50 803.50 829.50 939.50 1077.93 a 1135.50 1169.00 1180.00 1108.00 907.00 832.00 9999.00
1957 476.50 j 697.50 819.50 809.00 957.00 1106.90 a 818.00 j 1205.50 1139.00 977.00 862.00 894.50 9467.90
1958 799.00 673.00 778.00 836.50 958.00 1001.00 1124.50 812.00 j 781.50 j 1098.50 912.00 844.50 9025.00
1959 709.00 675.00 856.50 758.00 922.00 1061.50 1185.50 1220.00 1164.00 1041.50 898.50 890.00 9999.00
1960 579.50 j 691.50 799.50 828.50 989.42 a 1135.00 1179.03 a 856.50 i 1169.00 1047.50 946.00 856.00 9641.45
1961 797.00 779.50 819.50 688.50 868.50 1049.50 1157.00 1190.00 1172.50 1083.50 989.50 913.50 9999.00
1962 775.50 704.00 802.50 779.00 902.50 989.50 1139.50 1216.00 1194.00 1119.50 1007.07 a 884.50 9999.00
1963 820.50 694.00 823.50 810.00 993.50 1108.00 1149.00 1194.00 1201.00 1173.00 1003.50 828.00 9999.00
1964 893.00 821.00 834.50 761.50 953.50 1042.50 1163.50 1173.00 1163.00 1134.00 946.50 793.00 9999.00
1965 713.50 698.00 777.50 768.46 d 696.50 f 1032.00 1146.00 1190.50 752.00 j 749.50 j 690.50 h 828.98 b 7154.94
1966 827.50 676.00 844.50 828.50 875.00 678.00 j 1127.50 1169.50 1147.50 1074.50 920.00 594.50 j 9490.50
1967 899.00 689.00 700.00 844.50 923.00 1038.00 1139.00 1211.00 1204.50 1175.00 1034.00 889.50 9999.00
1968 754.50 660.00 733.50 757.00 958.50 1060.50 1207.00 1255.00 1164.00 1036.50 828.00 854.00 9999.00
1969 716.50 707.00 806.50 897.00 1073.50 1055.00 1208.00 1195.50 1141.50 1078.00 915.50 880.50 9999.00
1970 788.00 710.50 0.00 z 905.50 951.50 1174.00 1219.50 1232.50 1136.50 1084.00 964.50 987.00 9999.00
1971 757.50 783.00 0.00 z 958.50 1059.00 1074.00 1156.00 1199.00 1155.00 0.00 z 971.50 778.00 9891.50
1972 765.50 726.50 739.50 792.50 967.00 1067.00 1174.00 1209.50 1148.50 1036.50 972.50 815.00 9999.00
1973 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
1974 495.00 m 660.00 g 0.00 z 115.50 z 0.00 z 0.00 z 157.50 z 745.50 l 1157.14 b 0.00 z 0.00 z 126.00 z 1157.14
1975 0.00 z 755.42 d 426.00 p 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1033.50 0.00 z 1788.92
1976 251.50 u 45.00 z 838.00 255.50 u 0.00 z 0.00 z 641.00 n 0.00 z 1176.00 0.00 z 201.00 x 0.00 z 2014.00
1977 721.50 0.00 z 761.00 826.00 993.50 1125.50 1152.00 1180.50 1119.00 1117.50 895.50 804.50 9999.00
1978 0.00 z 701.00 792.00 819.00 900.00 1123.50 1213.00 0.00 z 1226.50 1160.00 995.00 0.00 z 8930.00
1979 864.50 757.50 876.00 0.00 z 996.00 1093.00 0.00 z 0.00 z 1236.00 1225.50 985.00 0.00 z 8033.50
1980 0.00 z 0.00 z 899.00 898.00 1022.50 1127.59 a 1278.50 1275.13 a 1234.50 1207.00 1039.00 899.00 9999.00
1981 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
1982 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 43.00 z 126.00 z 441.00 s 1016.50 872.50 1889.00
1983 796.50 726.50 794.00 819.50 979.00 1185.00 1278.50 1233.00 1000.50 f 1244.50 1056.35 d 914.50 9999.00
1984 865.50 854.50 902.00 1012.00 0.00 z 1266.00 1329.50 1338.50 1246.00 1154.50 599.00 n 874.50 9999.00
1985 0.00 z 0.00 z 862.00 898.50 1091.00 1178.50 1226.00 1270.00 1230.50 0.00 z 947.00 909.50 9613.00
1986 862.00 702.50 813.00 846.50 863.00 1118.50 1230.50 1253.50 1186.00 1165.50 998.00 932.50 9999.00
1987 846.00 719.50 847.00 0.00 z 989.00 1095.50 1283.50 1348.50 1228.50 1148.50 1009.50 915.50 9999.00
1988 861.50 763.50 886.50 888.00 0.00 z 1195.50 0.00 z 1276.50 0.00 z 1216.00 0.00 z 965.50 8053.00
1989 908.00 710.50 837.50 0.00 z 1027.50 1123.50 1239.50 1274.00 1199.00 1140.50 933.50 914.00 9999.00
1990 853.50 705.00 870.50 797.00 994.50 1113.50 1229.31 b 43.00 z 1244.00 1157.00 958.50 0.00 z 9922.81
1991 822.00 679.00 853.50 926.50 1036.00 1132.00 123.50 z 1294.25 a 0.00 z 0.00 z 0.00 z 0.00 z 6743.25
Period of Record Statistics
MEAN 809.52 721.03 818.42 835.75 971.70 1102.25 1195.17 1227.54 1178.88 1121.85 963.79 875.79 11632.37
S.D. 57.60 44.20 49.00 67.45 58.47 58.39 53.17 48.73 38.29 62.90 55.65 48.97 226.11
SKEW -0.16 1.28 -0.32 0.45 -0.01 0.49 0.69 0.92 0.35 -0.09 -0.37 0.05 0.26
MAX 908.00 854.50 902.00 1012.00 1091.00 1266.00 1329.50 1348.50 1246.00 1244.50 1056.35 987.00 12053.83
MIN 709.00 660.00 700.00 688.50 863.00 989.50 1124.50 1169.00 1119.00 977.00 828.00 778.00 9999.00
NO YRS 27 31 32 30 30 32 29 28 30 29 31 29 13