Humidity Levels in Pennsylvania During October





The average humidity in October is listed below for places in Pennsylvania. The tables give daily averages along with highest and lowest relative humidity levels.

Relative humidity measures the actual amount of moisture in the air as a percentage of the maximum amount of moisture the air can hold.

All the numbers here are averages for the years 1961 to 1990.

Average Humidity

In this table, the Daily number is the average of humidity readings taken every three hours throughout the day. Morning percentages are for 7 am and Afternoon measures are for 4 pm local standard time.

Average relative humidity (%) in October
Daily Place Morning Afternoon
72 Allentown 86 55
71 Erie 77 64
71 Harrisburg 83 54
71 Philadelphia 83 54
68 Pittsburgh 81 53
72 Wilkes-Barre & Scranton 84 57
75 Williamsport 88 55

Highest and Lowest Humidity

Below are the averages during October for maximum and minimum humidity levels in Pennsylvania. The hours when this month's highest and lowest humidity readings usually occur are given in local standard time.

Daily high and low relative humidity (%) averages in October
High Time Place Low Time
85.6 7 am Allentown 54.7 4 pm
76.8 7 am Erie 62.9 1 pm
82.7 7 am Harrisburg 53.8 4 pm
83.1 4 am Philadelphia 54.2 4 pm
81.3 7 am Pittsburgh 52.7 4 pm
83.8 7 am Wilkes-Barre & Scranton 56.5 4 pm
87.6 7 am Williamsport 55.4 4 pm
Reference

World Data Center for Meteorology. Climate of the World.

Pennsylvania Humidity
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