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Climate tables. Data for Hiroshima.


Monthly temperature

Month Record low Average low Average Average high Record high
january -7.8 (1963) 2.2 5.4 9.9 17.5 (1997)
february -7.0 (1977) 2.6 6.2 11.0 21.5 (2009)
march -5.0 (1977) 5.4 9.5 14.6 22.6 (2010)
april -0.6 (1962) 10.4 14.8 19.9 29.0 (2004)
may 5.0 (1980) 15.3 19.6 24.5 31.5 (1998)
june 10.0 (1978) 19.9 23.2 27.3 33.6 (1990)
july 16.6 (1982) 24.2 27.2 31.0 38.7 (1994)
august 18.0 (1977) 25.2 28.5 32.8 37.9 (2001)
september 10.4 (1987) 21.3 24.7 29.2 36.9 (2007)
october 3.5 (1986) 15.0 18.8 23.6 31.4 (2019)
november 0.0 (1981) 9.2 12.9 17.7 25.6 (2020)
december -4.0 (1973) 4.1 7.5 12.0 21.8 (1984)
year () ()
graphic

Monthly precipitation

Month Average Record low Record high Daily high
january 45 3 (1940) 142 (1950) 47 (1967)
february 67 5 (1887) 197 (1922) 56 (1976)
march 124 21 (1973) 238 (1966) 69 (2018)
april 142 22 (2001) 408 (1890) 122 (1953)
may 178 19 (1940) 418 (2004) 128 (1965)
june 247 55 (1982) 666 (1923) 187 (1965)
july 259 2 (1978) 646 (1993) 293 (2018)
august 111 2 (2020) 462 (1993) 115 (1972)
september 170 13 (1967) 509 (1926) 169 (1983)
october 88 2 (2003) 388 (2017) 159 (1951)
november 68 2 (1971) 201 (1965) 83 (1982)
december 41 0.4 (1939) 145 (1890) 84 (2004)
year () () ()
graphic

Number of days with solid, liquid, and mixed precipitation

Type of precipitation jan feb mar apr may jun jul aug sep oct nov dec Year

Wind speed, m/s

jan feb mar apr may jun jul aug sep oct nov dec Year

The frequency of different wind directions, %

direction jan feb mar apr may jun jul aug sep oct nov dec Year
graphic graphic graphic graphic

Air humidity, %

jan feb mar apr may jun jul aug sep oct nov dec Year

Snow cover

Month jul aug sep oct nov dec jan feb mar apr may jun Year
number of days
height (sm)  
max height (sm)

Cloudy, score

month jan feb mar apr may jun jul aug sep oct nov dec Year
total
low

Number of clear, cloudy and cloudy days

month jan feb mar apr may jun jul aug sep oct nov dec Year
Total cloud
Low cloud

Number of days with different phenomena

phenomenon jan feb mar apr may jun jul aug sep oct nov dec Year

The frequency of different types of clouds, %

type of clouds jan feb mar apr may jun jul aug sep oct nov dec Year