Climate Information for Dumbarton


Weather:

This page presents averages based on long-term climate trends. A specific daily weather forecast for Dumbarton is available from the BBC.

Climate Description:

Winters in Dumbarton are usually mild for Scotland, with January daily temperatures of about 6.8°C and nights cooling off to 1.5°C in the coldest month. Summers are very warm, with daytime temperatures in July typically reaching 19.3°C and nights dipping to 11.4°C. Rainfall in Dumbarton is high, totalling 1276 mm in a typical year. Precipitation tends to fall more in the winter, falling over about 171 days per year. Dumbarton has average sunshine totals, with 1336 hours of sunshine recorded in a typical year.

Climate Averages:

JanFebMarAprMayJunJulAugSepOctNovDecAnnual Average
High Temperature (°C)6.87.39.312.015.317.619.319.016.412.79.46.812.7
Low Temperature (°C)1.61.62.84.36.69.411.411.19.46.53.91.55.8
Sunshine (hours per day)1.52.53.34.76.15.45.45.03.92.81.91.43.7

JanFebMarAprMayJunJulAugSepOctNovDecAnnual Total
Sunshine (hours per month)45711021401901611661561178858421336
Precipitation (mm)14610611966647277991211401281381276
Days with Precipitation181316131111131214171716171
Days of Air Frost98520000014938


Temperature Chart:

Precipitation Chart:

Sunshine Chart:

Please note that the information on this page describes long-term climate averages and cannot be relied upon for predictions of the weather. While every effort has been made to produce the best climate estimates possible, users should be aware that they may contain errors. Further explanation is available about our climate information, how the data was derived, estimates of error, and details about the original data sources.


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