In the Weather in the UK dataset, which months are typically warmest, and how would you describe the long-term patterns?

• A. Typically January/February; long-term patterns show cooling trends.
• B. Typically September/October; long-term patterns show decreasing variability.
• C. Typically July/August; long-term patterns may show warming trends or greater temperature variability.
• D. Typically May/June; long-term patterns show constant temperatures.

Answer: (C)

Warmest months are midsummer—July and August—because they have the most sunlight and the longest days, so the air tends to reach its highest average temperatures, even with the Atlantic’s moderating influence on extremes. Over the long term, the patterns in the dataset often show a warming trend in summer means and greater temperature variability, meaning more frequent heat events and a wider range of high temperatures.