Historical weather data, all-time temperature records, and monthly climate averages for Allegheny West, PA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Allegheny West typically lands in comfortable spring territory, with average highs around 61° and lows near 43°. The date has seen some real swings though — as warm as 79° back in 1999 and as cold as 32° in 2013. There's nearly a coin-flip chance of rain today, but snow is off the table.
Allegheny West runs the full gamut — from a brutal -5° in January 1994 to a scorching 104° in July 1999, a swing of 109 degrees across its recorded history. The wettest single day on record dumped 7.5 inches in late September 2004, and a January 1996 snowstorm left 24 inches in a single day.
Summer is the main event here, with highs peaking around 89-91° in mid-July and the wettest stretch of the year arriving right alongside it in early-to-mid July. If you're heat-averse, January and February are the quiet months, with highs hovering in the low-to-mid 40s. Spring and fall offer a solid middle ground, with April and October both averaging in the mid-to-upper 60s.