Little difference exists between winter and summer temperatures. On the coast, expect daytime highs in the low 80 degrees Fahrenheit and overnight lows near 70 during the winter months, and highs in the upper 80s with lows in the mid-70s in the summer. Temperatures decrease with altitude, running 5 to 15 degrees lower in the mountains, on average. Despite its tropical location, the record high in Puerto Rico is only 98 degrees, lower than the record highs in all of the 50 states, including Alaska. It never gets cold enough to snow in Puerto Rico; the lowest recorded temperature was 39 degrees, which occurred high in the central mountains.