Luke 4:25
I also tell you of a truth, that there were many widows in Israel in the days of Elijah, when heaven was shut up three years and six months, so that there was a great famine over all the land;
James 5:17
Elijah was a man of like passions with us, and he prayed that it might not rain, and it rained not on the land for three years and six months;
Revelation 11:2
And leave out the exterior court of the temple and measure it not, for it has been given to the gentiles, and they shall tread the holy city under foot forty-two months [three years and a half].
Revelation 11:6
These have power to shut heaven, that it may not rain in the days of their prophecy, and they have power over the waters to turn them into blood and to smite the earth with every plague as often as they will.