Farmers waved banners outside the state-run Water Organization on Monday to demand water after heavy snowfalls filled dams in the region.
They warned if their demands are not met by February 4 they would hold protests by thousands.
Last year, furious farmers set fire to three buses carrying security forces, before several were killed and injured in violent clashes near the city of Isfahan.
Officials have warned that farmers’ protests over water shortages could trigger a massive social uprising that could threaten the stability of the regime.