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> Uk > Stornoway, Outer Hebridies > Precipitation
Rainfall/ Precipitation in Stornoway, Outer Hebridies, Uk
- Stornoway, Outer Hebridies receives 1173 mm (46.2 in) of rainfall per year, or 97.8 mm (3.9 in) per month.
- On average there are 252 days per year with more than 0.1 mm (0.004 in) of rainfall (precipitation) or 21 days with a quantity of rain, sleet, snow etc. per month.
- The driest weather is in May when an average of 61 mm (2.4 in) of rainfall (precipitation) occurs.
- The wettest weather is in October when an average of 138 mm (5.4 in) of rainfall (precipitation) occurs.
Precipitation Table
| Climate Variable | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Average Precipitation mm (in) | 122 (4.8) | 86 (3.4) | 104 (4.1) | 65 (2.6) | 61 (2.4) | 63 (2.5) | 73 (2.9) | 84 (3.3) | 116 (4.6) | 138 (5.4) | 133 (5.2) | 128 (5) | 1173 (46.2) | |
 | Precipitation Litres/m² (Gallons/ft²) | 122 (2.99) | 86 (2.11) | 104 (2.55) | 65 (1.59) | 61 (1.5) | 63 (1.55) | 73 (1.79) | 84 (2.06) | 116 (2.85) | 138 (3.38) | 133 (3.26) | 128 (3.14) | 1173 (28.77) | |
 | Number of Wet Days (probability of rain on a day) | 24 (77%) | 21 (74%) | 19 (61%) | 20 (67%) | 17 (55%) | 17 (57%) | 21 (68%) | 20 (65%) | 21 (70%) | 24 (77%) | 23 (77%) | 25 (81%) | 252 (69%) | |
 | Percentage of Sunny (Cloudy) Daylight Hours | 16 (84) | 22 (78) | 30 (70) | 33 (67) | 38 (62) | 31 (69) | 24 (76) | 29 (71) | 29 (71) | 25 (75) | 19 (81) | 14 (86) | 28 (72) |