The National Climatic Data Center and the National Weather Service office in Pittsburgh offer these facts about the Pittsburgh and Butler weather:

Pennsylvania has an average of 43.02 inches of precipitation a year.

Pennsylvania is the 21st wettest state in the United States.

The record wettest years for the state were 1895, 2011 and 2012 with an average precipitation of 59.80 inches.

Pittsburgh has an average precipitation of 37.85 inches per year with an average of 35 days with thunderstorms.

The 30-year average rainfall for June (1981 to 2010) recorded at the Butler weather station is 4.16 inches of rain. The weather service records also indicated the average temperature in June was 78.3 for the high and 54.2 for the low.