Weather For Mount Joy, PA On Sunday, December 21, 2025

Summary

This morning when I woke up it was warmer than yesterday. The temperature was just above freezing after being in the upper 30s during the night. Dawn brought clear skies with temperatures in the upper 20s. There were some clouds for a bit this morning but the sun came back out quickly. It was into the middle 40s by mid morning. Near lunchtime the wind became gusty and really started picking up with temperatures in the middle 40s still. It was sunny late this afternoon but the temperature had dropped into the upper 30s.

Weather Station Data

This table contains the temperature data from my weather station in degrees Fahrenheit.
Today
TemperatureDew Point Feels Like
Average 36 ℉ 23.7 ℉ 35.2 ℉
High 46.8 ℉ at 30.3 ℉ at 46.6 ℉ at
Low 27.3 ℉ at 16.4 ℉ at 23.4 ℉ at
Range19.5 ℉ 13.9 ℉23.2 ℉
Yesterday
TemperatureDew Point Feels Like
Average30 ℉20.7 ℉28.4 ℉
High40.6 ℉ at 29 ℉ at 40.5 ℉ at
Low22.6 ℉ at 14.7 ℉ at 12.2 ℉ at
Range18 ℉ 14.3 ℉28.3 ℉
Difference
TemperatureDew Point Feels Like
Average6℉ warmer3℉ warmer 6.8℉ warmer
High6.2℉ warmer 1.3℉ warmer 6.1℉ warmer
Low4.7℉ warmer 1.7℉ warmer 11.2℉ warmer

There were 28 heating degree days today

There were 33 heating degree days yesterday

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This table contains the relative humidity data from my weather station.
AverageHighLow Range
62%90% at 43% at 47%
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This table contains the relative barometric pressure data from my weather station in Inches of mercury.
PressureTime
Average30.22″
High30.53″
Low30.02″
Range0.51″
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This table contains the solar data from my weather station
UV Radiation MaxSolar Radiation Max
3 at 351.1 W/m² at
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This table sunrise and sunset information for the day.
TodayDifference From Yesterday
Sunrise at 69.92° and 0.01° south of yesterday's sunset.
Sunset at 69.74° and 0.01° south of yesterday's sunset.
Solar Noon at 26.45° and 0.0° 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 Wind2.2 mph22.8 mph
High6 mph28.4 mph
DirectionN
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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″ 0″0″314.53″347.63″
The last measurable rain was days ago on and when 0.08″ 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 Hour0
Strikes Per Day0
The last lightning strike detected was on .
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