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Climate & Weather Averages in Dumbarton, Scotland, United Kingdom

Currently: 43 °F. Clear. (Weather station: Glasgow Airport, United Kingdom). See more current weather

Annual Weather Averages Near Dumbarton

Averages are for Glasgow Airport, which is 7 miles from Dumbarton.

Based on weather reports collected during 1992–2021.

All Year Climate & Weather Averages in Dumbarton

High Temp: 66 °F

Low Temp: 34 °F

Mean Temp: 48 °F

Precipitation: 2.60"

Humidity: 82%

Dew Point: 43 °F

Wind: 17 mph

Pressure: 29.89 "Hg

Visibility: 7 mi

January Climate & Weather Averages in Dumbarton

High Temp: 45 °F

Low Temp: 34 °F

Mean Temp: 39 °F

Precipitation: 3.26"

Humidity: 87%

Dew Point: 36 °F

Wind: 19 mph

Pressure: 29.83 "Hg

Visibility: 7 mi

February Climate & Weather Averages in Dumbarton

High Temp: 46 °F

Low Temp: 35 °F

Mean Temp: 40 °F

Precipitation: 2.95"

Humidity: 84%

Dew Point: 36 °F

Wind: 20 mph

Pressure: 29.87 "Hg

Visibility: 7 mi

March Climate & Weather Averages in Dumbarton

High Temp: 49 °F

Low Temp: 36 °F

Mean Temp: 42 °F

Precipitation: 2.42"

Humidity: 81%

Dew Point: 37 °F

Wind: 20 mph

Pressure: 29.91 "Hg

Visibility: 7 mi

April Climate & Weather Averages in Dumbarton

High Temp: 54 °F

Low Temp: 39 °F

Mean Temp: 46 °F

Precipitation: 1.75"

Humidity: 77%

Dew Point: 39 °F

Wind: 18 mph

Pressure: 29.93 "Hg

Visibility: 7 mi

May Climate & Weather Averages in Dumbarton

High Temp: 59 °F

Low Temp: 43 °F

Mean Temp: 51 °F

Precipitation: 1.88"

Humidity: 75%

Dew Point: 43 °F

Wind: 17 mph

Pressure: 29.96 "Hg

Visibility: 8 mi

June Climate & Weather Averages in Dumbarton

High Temp: 64 °F

Low Temp: 49 °F

Mean Temp: 56 °F

Precipitation: 2.10"

Humidity: 77%

Dew Point: 49 °F

Wind: 16 mph

Pressure: 29.97 "Hg

Visibility: 8 mi

July Climate & Weather Averages in Dumbarton

High Temp: 66 °F

Low Temp: 52 °F

Mean Temp: 59 °F

Precipitation: 2.25"

Humidity: 79%

Dew Point: 53 °F

Wind: 15 mph

Pressure: 29.92 "Hg

Visibility: 8 mi

August Climate & Weather Averages in Dumbarton

High Temp: 66 °F

Low Temp: 51 °F

Mean Temp: 58 °F

Precipitation: 2.61"

Humidity: 81%

Dew Point: 53 °F

Wind: 15 mph

Pressure: 29.91 "Hg

Visibility: 8 mi

September Climate & Weather Averages in Dumbarton

High Temp: 62 °F

Low Temp: 48 °F

Mean Temp: 55 °F

Precipitation: 2.35"

Humidity: 83%

Dew Point: 50 °F

Wind: 16 mph

Pressure: 29.93 "Hg

Visibility: 7 mi

October Climate & Weather Averages in Dumbarton

High Temp: 55 °F

Low Temp: 43 °F

Mean Temp: 49 °F

Precipitation: 3.37"

Humidity: 86%

Dew Point: 45 °F

Wind: 16 mph

Pressure: 29.83 "Hg

Visibility: 7 mi

November Climate & Weather Averages in Dumbarton

High Temp: 49 °F

Low Temp: 38 °F

Mean Temp: 44 °F

Precipitation: 3.08"

Humidity: 87%

Dew Point: 40 °F

Wind: 16 mph

Pressure: 29.80 "Hg

Visibility: 7 mi

December Climate & Weather Averages in Dumbarton

High Temp: 45 °F

Low Temp: 34 °F

Mean Temp: 40 °F

Precipitation: 3.17"

Humidity: 88%

Dew Point: 37 °F

Wind: 17 mph

Pressure: 29.81 "Hg

Visibility: 6 mi

Quick Climate Info

Hottest MonthJuly (59 °F avg)
Coldest MonthJanuary (39 °F avg)
Wettest MonthOctober (3.37" avg)
Windiest MonthFebruary (20 mph avg)
Annual precip.31.17" (per year)

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