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Grantham, Lincolnshire experiences mild weather year-round. Summers tend to be warm and sunny, with temperatures reaching an average high of 21°C (70°F) and lows of 11°C (52°F). Winters are cool and wet, with average highs of 6°C (43°F) and lows of 1°C (34°F). Spring and autumn are mild, with temperatures ranging between 11°C (52°F) and 16°C (61°F). Rainfall is relatively consistent throughout the year, with an average of around 81mm (3.2in) per month. Snowfall is rare but does occur in the winter months, with an average of 19 cm (7.5in) for the season.
As of 2020, the city population is 44580.
This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Grantham, Lincolnshire.