Winter temperatures have highs of to lows of . Daytime highs range between , with overnight lows between . Extremes are common with summer highs in the south reaching and lows reaching below . The temperatures listed are averages of the daily highs and lows. Coastal summer temperatures range from highs of to lows of . Daily temperatures oscillate between lows of to and highs of to . January is the coldest month with average lows of and highs of . Winters are mild with average January highs of 58 degrees and lows of 36 degrees. Note that the sequence of lower lows and lower highs did not begin until August. Winters in the area are temperate with typical January highs above and lows near . His second season was full of highs and few lows. For the city of Allentown, January lows average and highs average . May is the hottest month, with average daily lows of and highs of . On average, there are 9.4 days of + highs and 8.7 days of sub- lows. It looks clean, simple and doesn't boast of any highs or lows.