Hiroshima's Climate Data

30 Year Average, 1971-2000

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average Temp.(℃) 5.3 5.7 9 14.6 18.9 22.8 26.9 27.9 23.9 18 12.3 7.5
Highest Temp.(℃) 9.6 10.2 13.8 19.5 23.8 26.9 30.8 32.1 28.3 23 17.2 12.3
Lowest Temp.(℃) 1.7 1.8 4.5 9.8 14.3 19.2 23.7 24.3 20.2 13.8 8.2 3.5
Precipitation(mm) 46.9 66.9 120.5 156 156.8 258.1 236.3 126 180.3 95.4 67.8 34.8
Relative Humidity(%) 67 67 65 64 66 73 75 71 71 69 68 69
Daylight Hours 137.5 131.1 166.3 189.1 205.7 158.8 182.9 201.5 154.9 180.2 149.3 147.8
Snow Days 7.8 7.6 2.4 0 0 0 0 0 0 0 0.3 4.3
Thunder Days 0.1 0.1 0.2 0.4 1 1.4 3.7 2.8 2 0.5 0.5 0.3
Foggy Days 0.8 0.9 1.3 1.5 1.4 1.3 0.8 0.1 0.1 0.3 0.7 0.8
Summer Days 0 0 0 0.7 8.5 20.8 28.8 30.6 24.3 6.6 0 0
Very Hot Days 0 0 0 0 0.1 1.3 16.8 23.8 7.4 0 0 0
Frost Days 9.4 8.8 2.5 0 0 0 0 0 0 0 0.1 3.2