Winters in Altoona are cold and variable, with temperatures often dropping below freezing, but also experiencing occasional warmer days. As spring approaches, temperatures gradually rise, with April being a turning point, marking the beginning of milder conditions. Summer is warm to hot, with July and August typically being the hottest months, but with highs not consistently reaching extreme levels. Autumn brings a return to cooler temperatures, similar to those experienced in winter, while spring's mildness is brief. Overall, temperature fluctuations are common throughout the year, with little consistency from month to month.