WEATHER IN Stornoway
Climate tables. Data for Stornoway.
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -12.2 (1960) | 2.7 | 5.1 | 7.5 | 14.4 (1998) |
| february | -11.1 (1892) | 2.4 | 5.0 | 7.5 | 13.9 (1900) |
| march | -10.6 (1881) | 3.2 | 5.8 | 8.5 | 20.0 (1949) |
| april | -8.9 (1917) | 4.6 | 7.5 | 10.4 | 20.8 (2003) |
| may | -4.4 (1938) | 6.4 | 9.5 | 12.6 | 23.9 (1908) |
| june | -0.6 (1888) | 9.0 | 11.8 | 14.5 | 25.6 (1911) |
| july | 0.0 (1888) | 10.8 | 13.6 | 16.3 | 26.2 (2003) |
| august | 0.0 (1951) | 11.0 | 13.6 | 16.4 | 26.3 (1999) |
| september | -0.4 (1964) | 9.5 | 12.1 | 14.7 | 25.0 (1906) |
| october | -4.4 (1948) | 7.0 | 9.5 | 12.0 | 21.1 (1898) |
| november | -7.8 (1947) | 4.5 | 7.0 | 9.5 | 16.3 (2003) |
| december | -11.2 (1961) | 2.8 | 5.3 | 7.8 | 14.4 (1948) |
| year | -12.2 (1960) | 6.2 | 8.8 | 11.5 | 26.3 (1999) |
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 | 1180.6 | 616.6 (2018) | 1592.9 (1898) | 70.0 (1933) |
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 |
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 |