Wednesday, December 17, 2025 Weather For Mount Joy, PA This morning when I woke up it was much warmer than yesterday. The temperature was in the middle 20s. It had risen to that after a low in the middle teens just after midnight. Dawn brought partly cloudy skies. It was into the middle 30s by mid morning. It was cloudy around lunchtime and in the middle 30s still. The snow was slowly melting. With some periods of sun mixed in the temperature reached the lower 40s by mid afternoon.
This table contains the temperature data from my weather station in degrees Fahrenheit.
Today
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℉
Yesterday
Temperature Dew Point Feels Like
Average
20.3℉
13.6℉
18.4℉ High
33.1℉ at 3:17 PM
18.1℉ at 11:33 AM
33.1℉ at 3:17 PM
Low
6.8℉ at 4:39 AM
5.0℉ at 4:39 AM
0.9℉ at 4:53 AM
Range 26.3℉ 13.1℉ 32.2℉
Difference
Temperature Dew Point Feels Like
Average 9.1℉ warmer 10.7℉ warmer 10.1℉ warmer
High 9.9℉ warmer 13.6℉ warmer 9.9℉ warmer Low 8.3℉ warmer 6.7℉ warmer 7.5℉ warmer
There were 36.0 heating degree days today
There were 45.0 heating degree days yesterday
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This table contains the relative humidity data from my weather station.
Average High Low Range
81.0% 93.0% at 8:46 PM 61.0% at 1:05 PM 32.0%
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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 30.28′ 11:41 PM Low 29.95′ 12:18 PM Range 0.33′
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This table contains the solar data from my weather station
UV Radiation Max Solar Radiation Max 2 at 12:44 PM 302.1 W/m² at 1:30 PM
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This table sunrise and sunset information for the day.
Today Difference From Yesterday Sunrise 7:22:30 AM at 70.0° 39 seconds later than yesterday and 0.04° south of yesterday's sunset. Sunset
4:42:02 PM at 69.83°21 seconds later than yesterday and 0.04° south of yesterday's sunset.Solar Noon 12:02:17 PM at 26.51°29 seconds later than yesterday and 0.03° lower than yesterday.Sunlight Duration 9 hours, 19 minutes and 31 seconds 17 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 1.8 mph 15.9 mph 9:15 PM High 4.3 mph 18.1 mph 3:28 AM 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
0.01″ 0.02″ per hour 26.58″ 26.57″ 26.59″ 314.26″ 347.37″
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This table contains the lightning data from my weather station.
Max Time
Strikes Per Hour 1 7:12 AM Strikes Per Day 1
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