Humidity Levels in Pennsylvania During January





The average humidity in January 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 January
Daily Place Morning Afternoon
69 Allentown 76 61
75 Erie 77 71
64 Harrisburg 71 56
66 Philadelphia 73 58
70 Pittsburgh 75 63
70 Wilkes-Barre & Scranton 75 63
70 Williamsport 76 60

Highest and Lowest Humidity

Below are the averages during January 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 January
High Time Place Low Time
75.6 7 am Allentown 60.7 4 pm
76.9 7 am Erie 71.3 4 pm
70.5 7 am Harrisburg 55.8 4 pm
72.7 7 am Philadelphia 57.8 4 pm
75.0 7 am Pittsburgh 63.0 4 pm
75.4 7 am Wilkes-Barre & Scranton 62.9 4 pm
76.4 7 am Williamsport 59.5 4 pm
Reference

World Data Center for Meteorology. Climate of the World.

Pennsylvania Humidity
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