Historical weather data, all-time temperature records, and monthly climate averages for Hazleton, PA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Hazleton runs cool, with an average high of just 52° and a low that can still dip to freezing at 29°. The date has seen wild swings over 62 years — from a brutal 4° in 1975 to a shirt-sleeve 77° as recently as 2023. There's nearly a coin-flip chance of precipitation today, though snow is mostly off the table at just 4%.
Hazleton's weather has serious range — from a sweltering 98° in August 2006 to a bone-cracking -28° in February 1979, a spread of 126 degrees. A single June day in 1969 dumped 6.67 inches of rain, and an early-season November storm in 1971 buried the city under 22 inches of snow. This is a place where the weather means business year-round.
Summer is Hazleton's sweet spot, peaking in the week of July 16–22 with average highs of 81° — though the warm season is brief, with highs already fading into the 60s by October. Winters are legitimately cold, bottoming out around 31° in mid-January. If you're watching the rain, plan around mid-June, which is historically the wettest stretch of the year.