Sunday, September 20, 2026 Weather For Mount Joy, PA This morning when I woke up it was warmer than yesterday. The temperature was in the middle 60s with rain falling. Dawn brought light rain with temperatures in the middle 60s. It was still in the middle 60s by midmorning and we were up to just over half an inch of rain. The sun was peeking out early this afternoon. The high was in the middle 70s with misty light rain most of the afternoon.
This table contains the temperature data from my weather station in degrees Fahrenheit.
Today
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℉
Yesterday
Temperature Dew Point Feels Like
Average
66.1℉
60.4℉
66.3℉ High
75.7℉ at 1:25 PM
64.8℉ at 4:42 PM
76.1℉ at 1:24 PM
Low
56.7℉ at 4:29 AM
55.4℉ at 4:24 AM
56.7℉ at 4:29 AM
Range 19.0℉ 9.4℉ 19.4℉
Difference
Temperature Dew Point Feels Like
Average 3.3℉ warmer 7.7℉ warmer 3.7℉ warmer
High 1.7℉ warmer 8.8℉ warmer 2.9℉ warmer Low 7.2℉ warmer 8.0℉ warmer 7.2℉ warmer
There were 5.7 cooling degree days today.
There were 1.0 cooling degree days yesterday.
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This table contains the relative humidity data from my weather station.
Average High Low Range
95.0% 99.0% at 12:57 AM 86.0% at 12:44 PM 13.0%
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This table contains the relative barometric pressure data from my weather station in Inches of mercury.
Pressure Time
Average 29.98′ High 30.11′ 12:00 AM Low 29.88′ 5:37 PM Range 0.23′
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This table contains the solar data from my weather station
UV Radiation Max Solar Radiation Max 4 at 12:23 PM 507.7 W/m² at 12:23 PM
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This table sunrise and sunset information for the day.
Today Difference From Yesterday Sunrise 6:51:44 AM at 92.03° 57 seconds later than yesterday and 0.33° south of yesterday's sunset. Sunset
7:06:17 PM at 92.16°1 minute and 40 seconds earlier than yesterday and 0.33° south of yesterday's sunset.Solar Noon 12:59:21 PM at 50.78°21 seconds earlier than yesterday and 0.39° lower than yesterday.Sunlight Duration 12 hours, 14 minutes and 33 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 6.5 mph 12:12 PM High 2.8 mph 9.4 mph 12:12 PM Direction E
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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
0.7″ 0.52″ per hour 0.7″ 0″ 0.7″ 3.15″ 3.4″
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This table contains the lightning data from my weather station.
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