Use this page to explore monthly U.S. climate, 1895-2014. You can already see a map. Scroll down to see a timeseries. Use the control panel below the map to change images. Select a desired Parameter (temperature, precip, ...), Region (U.S. Continental, Northeast, ...), and Month (Jan-Dec + annual/seasonal). Move the slider to change the year. Maps and timeseries are derived from 4 km gridded PRISM data [see data source].