Climate data comparison of four Spanish cities, illustrating temperature and precipitation trends throughout the year.

Let’s go step by step to answer all the questions using the climate graphs for Cantabria, Tenerife, Valencia, and Madrid.

We’ll look at each city’s graph carefully — red line = temperature (°C), blue bars = precipitation (mm). Months are numbered 01 to 12 (January to December).

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CANTABRIA:

- Most precipitations? → Look at tallest blue bar. Month 12 (December) is highest (~150 mm).
- Hottest month? → Highest point on red line. Month 08 (August) ~20°C.
- Lowest temperature? → Lowest point on red line. Month 01 (January) ~9°C.

TENERIFE:

- Months with no precipitations? → Blue bars at zero. Months 06, 07, 08 (June, July, August) have almost no rain.
- Lowest temperature? → Lowest red line point. Month 01 or 02 ~18°C.
- Difference between highest and lowest temp? → Highest ~25°C (Aug), lowest ~18°C → 25 - 18 = 7°C.

VALENCIA:

- Highest temperature? → Red line peak. Month 08 (August) ~26°C.
- Season with more precipitations? → Look at blue bars. Autumn (Sep, Oct, Nov) has high bars, especially Oct. But also spring (Mar, Apr) has some. Actually, autumn (Oct-Nov) is wettest. Let’s say “autumn”.
- Season with lowest precipitations? → Summer (Jun, Jul, Aug) — very low bars.

MADRID:

- Season with least precipitations? → Summer (Jun, Jul, Aug) — blue bars are lowest then.
- Month with most precipitations? → Tallest blue bar. Month 11 (November) ~60 mm.
- Difference between most and least precipitations? → Most: Nov ~60 mm, Least: Jul ~5 mm → 60 - 5 = 55 mm.

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Now the bottom questions:

Which cities are the hottest in summer?
Summer = Jun, Jul, Aug. Compare red lines in those months:
- Cantabria: ~20°C
- Tenerife: ~24–25°C
- Valencia: ~25–26°C
- Madrid: ~24–25°C
→ So Valencia and Tenerife are hottest in summer.

Which city is the warmest in winter?
Winter = Dec, Jan, Feb. Compare red lines:
- Cantabria: ~9–10°C
- Tenerife: ~18–19°C ← much warmer!
- Valencia: ~10–12°C
- Madrid: ~6–8°C
→ Tenerife is warmest in winter.

Which is the city with the most precipitations? And the least?
Look at total blue bars over year:
- Cantabria: Very high all year, especially winter → likely MOST.
- Tenerife: Low most of year, only a bit in winter → likely LEAST.
Check totals roughly:
Cantabria: many bars above 100 mm → total > 1000 mm
Tenerife: mostly under 30 mm, few over → total < 300 mm
Valencia & Madrid: medium.
→ Most: Cantabria, Least: Tenerife

In which city there is the most change of temperature?
Change = difference between hottest and coldest month.
- Cantabria: 20°C (Aug) - 9°C (Jan) = 11°C
- Tenerife: 25°C - 18°C = 7°C
- Valencia: 26°C - 11°C = 15°C
- Madrid: 24°C - 6°C = 18°C ← biggest range!
→ Madrid has the most temperature change.

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Final Answer:

CANTABRIA:
- Month with most precipitations: December (month 12)
- Hottest month: August (month 8)
- Lowest temperature: January (month 1) ≈ 9°C

TENERIFE:
- Months with no precipitations: June, July, August (months 6, 7, 8)
- Lowest temperature: January/February ≈ 18°C
- Difference between highest and lowest temperatures: 7°C

VALENCIA:
- Highest temperature: August (month 8) ≈ 26°C
- Season with more precipitations: Autumn (especially October)
- Season with lowest precipitations: Summer

MADRID:
- Season with least precipitations: Summer
- Month with most precipitations: November (month 11)
- Difference between most and least precipitations: 55 mm

Bottom Questions:
- Cities hottest in summer: Valencia and Tenerife
- City warmest in winter: Tenerife
- City with most precipitations: Cantabria; least: Tenerife
- City with most temperature change: Madrid