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Climate tables. Data for Stornoway.


Monthly temperature

Month Record low Average low Average Average high Record high
january -12.2 (1960) 2.8 5.2 7.3 14.4 (1998)
february -11.1 (1892) 2.6 5.1 7.4 13.9 (1900)
march -15.2 (2005) 3.4 5.9 8.6 20.0 (1949)
april -12.1 (2008) 4.9 7.5 10.6 20.8 (2003)
may -8.8 (2005) 6.7 9.5 12.8 23.9 (1908)
june -7.1 (2005) 9.4 11.8 14.8 25.6 (1911)
july -5.2 (2004) 11.3 13.6 16.7 26.2 (2003)
august -4.6 (2006) 11.3 13.7 16.7 26.3 (1999)
september -8.1 (2007) 9.7 12.1 14.8 25.0 (1906)
october -7.7 (2005) 7.1 9.6 12.0 21.1 (1898)
november -14.4 (1895) 4.7 7.2 9.4 16.3 (2003)
december -16.7 (1953) 2.8 5.4 7.6 14.4 (1948)
year () ()
graphic

Monthly precipitation

Month Average Record low Record high Daily high
january 138.7 25.0 (1963) 276.0 (1993) 65.0 (1989)
february 107.1 10.0 (1963) 280.0 (1997) 40.0 (1990)
march 98.8 19.0 (1969) 208.0 (1990) 28.0 (1954)
april 72.9 1.0 (1974) 157.9 (1904) 44.0 (1959)
may 66.4 13.0 (2008) 153.0 (2011) 38.8 (2007)
june 63.1 9.6 (1897) 132.1 (1877) 46.0 (1937)
july 72.3 14.0 (1955) 168.8 (1894) 40.0 (1939)
august 85.1 13.0 (1947) 220.0 (1903) 70.0 (1933)
september 99.7 7.8 (1894) 207.0 (1981) 49.0 (1936)
october 124.7 20.0 (1946) 233.0 (1989) 64.0 (1989)
november 123.4 24.0 (1945) 229.0 (1981) 38.0 (1980)
december 128.4 23.0 (2002) 328.4 (1898) 44.0 (1989)
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