Thursday, December 18, 2025 Weather For Mount Joy, PA This morning when I woke up it was a bit colder than yesterday. The temperature was in the lower 20s after a low in the upper teens earlier. Dawn brought clear skies. It was into the middle 30s by mid morning. It was sunny and in the middle 40s by lunchtime. The high this afternoon was in the upper 40s. That got rid of much of the snow at least in the areas that get sunshine.
This table contains the temperature data from my weather station in degrees Fahrenheit.
Today
Temperature Dew Point Feels Like
Average
36.7℉
33.1℉
34.9℉ High
48.2℉ at 1:54 PM
44.3℉ at 7:15 PM
47.8℉ at 3:04 PM Low
17.8℉ at 6:57 AM
16.9℉ at 6:57 AM
7.0℉ at 5:59 AM Range 30.4℉ 27.4℉ 40.8℉
Yesterday
Temperature Dew Point Feels Like
Average
29.4℉
24.3℉
28.5℉ High
43.0℉ at 2:12 PM
31.7℉ at 2:12 PM
43.0℉ at 2:12 PM
Low
15.1℉ at 12:03 AM
11.7℉ at 12:03 AM
8.4℉ at 1:34 AM
Range 27.9℉ 20.0℉ 34.6℉
Difference
Temperature Dew Point Feels Like
Average 7.3℉ warmer 8.8℉ warmer 6.4℉ warmer
High 5.2℉ warmer 12.6℉ warmer 4.8℉ warmer Low 2.7℉ warmer 5.2℉ warmer 1.4℉ cooler
There were 32.0 heating degree days today
There were 36.0 heating degree days yesterday
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This table contains the relative humidity data from my weather station.
Average High Low Range
87.0% 99.0% at 10:00 PM 63.0% at 10:47 AM 36.0%
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This table contains the relative barometric pressure data from my weather station in Inches of mercury.
Pressure Time
Average 30.22′ High 30.36′ 9:43 AM Low 29.92′ 11:57 PM Range 0.44′
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This table contains the solar data from my weather station
UV Radiation Max Solar Radiation Max 3 at 11:40 AM 330.3 W/m² at 12:01 PM
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This table sunrise and sunset information for the day.
Today Difference From Yesterday Sunrise 7:23:07 AM at 69.97° 37 seconds later than yesterday and 0.03° south of yesterday's sunset. Sunset
4:42:25 PM at 69.79°23 seconds later than yesterday and 0.03° south of yesterday's sunset.Solar Noon 12:02:47 PM at 26.49°30 seconds later than yesterday and 0.03° lower than yesterday.Sunlight Duration 9 hours, 19 minutes and 18 seconds 14 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 3.2 mph 14.8 mph 3:11 AM High 6.6 mph 17.4 mph 9:47 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
0.18″ 0.17″ per hour 0.18″ 0.01″ 26.77″ 314.44″ 347.55″
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This table contains the lightning data from my weather station.
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