At Hay Reservoir you donít see much rainfall. Most of the rain falls through May, and the driest month of the year is January. For the duration of the warmest time of the year at Hay Reservoir temperatures are ordinarily in the 80's while overnight lows are mostly in the 50's. Daytime highs throughout the wintertime are in the 30's; night lows in the 0's for Hay Reservoir.
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These outdoors activities are available near Hay Reservoir.