Monday, September 21, 2026 Weather For Mount Joy, PA This morning when I woke up it was a little cooler than yesterday. The temperature was in the middle 60s. Dawn brought a low in the lower 60s with plenty of clouds. There were dim peeks of sun with temperatures in the middle 60s around midmorning. We reached the lower 70s by about lunchtime before clouds moved back in. The clouds were thickening around mid-afternoon with temperatures in the upper 60s.
This table contains the temperature data from my weather station in degrees Fahrenheit.
Today
Temperature Dew Point Feels Like
Average
65.1℉
60.6℉
65.1℉ High
70.2℉ at 11:53 AM
66.1℉ at 12:00 AM
70.6℉ at 11:53 AM Low
59.5℉ at 11:45 PM
55.8℉ at 4:07 PM
59.5℉ at 11:45 PM Range 10.7℉ 10.3℉ 11.1℉
Yesterday
Temperature Dew Point Feels Like
Average
69.4℉
68.1℉
70.0℉ High
77.4℉ at 4:17 PM
73.6℉ at 4:17 PM
79.0℉ at 4:17 PM
Low
63.9℉ at 1:13 AM
63.4℉ at 12:55 AM
63.9℉ at 1:13 AM
Range 13.5℉ 10.2℉ 15.1℉
Difference
Temperature Dew Point Feels Like
Average 4.3℉ cooler 7.5℉ cooler 4.9℉ cooler
High 7.2℉ cooler 7.5℉ cooler 8.4℉ cooler Low 4.4℉ cooler 7.6℉ cooler 4.4℉ cooler
There were 0.2 heating degree days today
There were 6.0 cooling degree days yesterday.
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This table contains the relative humidity data from my weather station.
Average High Low Range
86.0% 99.0% at 12:00 AM 65.0% at 4:07 PM 34.0%
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This table contains the relative barometric pressure data from my weather station in Inches of mercury.
Pressure Time
Average 30.09′ High 30.2′ 11:06 PM Low 29.99′ 12:00 AM Range 0.21′
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This table contains the solar data from my weather station
UV Radiation Max Solar Radiation Max 7 at 11:16 AM 819.6 W/m² at 11:49 AM
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This table sunrise and sunset information for the day.
Today Difference From Yesterday Sunrise 6:52:41 AM at 91.71° 57 seconds later than yesterday and 0.33° south of yesterday's sunset. Sunset
7:04:37 PM at 91.83°1 minute and 40 seconds earlier than yesterday and 0.33° south of yesterday's sunset.Solar Noon 12:58:59 PM at 50.4°21 seconds earlier than yesterday and 0.39° lower than yesterday.Sunlight Duration 12 hours, 11 minutes and 56 seconds 2 minutes and 37 seconds shorter than yesterday
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This table contains the wind data from my weather station in miles per hour.
Wind Speed Gust Time
Average Wind 1.0 mph 8.7 mph 5:42 PM High 2.8 mph 13.0 mph 10:50 AM Direction N
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This table contains the rainfall data from my weather station in inches.
Daily Rain Max Hourly Event Rain Yesterday's Rain Weekly Rain Monthly Rain Yearly Rain
0.17″ 0.31″ per hour 0.7″ 0.7″ 0.86″ 3.31″ 3.57″
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This table contains the lightning data from my weather station.
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