Weather For Mount Joy, PA On Saturday, December 20, 2025

Summary

This morning when I woke up it was much colder than it has been in a while. The temperature was in the middle 20s. Dawn brought clear skies. It was sunny this morning but much cooler than yesterday. It was only just above freezing by late morning. The afternoon was sunny with much calmer winds and the temperature into the upper 30s. The high this afternoon was in the lower 40s.

Weather Station Data

This table contains the temperature data from my weather station in degrees Fahrenheit.
Today
TemperatureDew Point Feels Like
Average 30 ℉ 20.7 ℉ 28.4 ℉
High 40.6 ℉ at 29 ℉ at 40.5 ℉ at
Low 22.6 ℉ at 14.7 ℉ at 12.2 ℉ at
Range18 ℉ 14.3 ℉28.3 ℉
Yesterday
TemperatureDew Point Feels Like
Average43.7 ℉38 ℉41.6 ℉
High59.2 ℉ at 58.3 ℉ at 59.2 ℉ at
Low25.7 ℉ at 14.3 ℉ at 14.7 ℉ at
Range33.5 ℉ 44 ℉44.5 ℉
Difference
TemperatureDew Point Feels Like
Average13.7 ℉ cooler17.3 ℉ cooler 13.2 ℉ cooler
High18.6 ℉ cooler 29.3 ℉ cooler 18.7 ℉ cooler
Low3.1 ℉ cooler 0.4℉ warmer 2.5 ℉ cooler

There were 33.4 heating degree days today

There were 23 heating degree days yesterday

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This table contains the relative humidity data from my weather station.
AverageHighLow Range
68%87% at 56% at 31%
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This table contains the relative barometric pressure data from my weather station in Inches of mercury.
PressureTime
Average30.2″
High30.35″
Low30.05″
Range0.3″
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This table contains the solar data from my weather station
UV Radiation MaxSolar Radiation Max
3 at 314.4 W/m² at
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This table sunrise and sunset information for the day.
TodayDifference From Yesterday
Sunrise at 69.93° and 0.02° south of yesterday's sunset.
Sunset at 69.75° and 0.02° south of yesterday's sunset.
Solar Noon at 26.46° and 0.01° lower than yesterday.
Sunlight Duration
about data sources
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This table contains the wind data from my weather station in miles per hour.
Wind SpeedGustTime
Average Wind2.6 mph18.6 mph
High5.3 mph18.6 mph
DirectionSE
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This table contains the rainfall data from my weather station in inches.
Daily Rain Max HourlyEvent RainYesterday's RainWeekly RainMonthly RainYearly Rain
0″0″ per hour0.26″ 0.08″26.85″314.53″347.63″
The last measurable rain was yesterday on when 0.08″ of rain fell. The storm total was 0.26″.
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This table contains the lightning data from my weather station.
MaxTime
Strikes Per Hour1
Strikes Per Day1
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