The correct answer is Churu.
Key Points
- Some important facts regarding the temperature of Rajasthan-
- June is the warmest month in Rajasthan while January is the coldest month in Rajasthan.
- Churu is the warmest and coldest district of Rajasthan, so Churu has the most annual temperature difference.
- Jaisalmer has the most daily temperature difference in Rajasthan.

