Weather For Mount Joy, PA On Wednesday, May 20, 2026

Summary

This morning when I woke up it was a little cooler than yesterday. The temperature was in middle 60s. Dawn brought partly cloudy skies. It was clear and in the lower 80s around mid morning with slightly lower dew points than yesterday. It was still sunny and in the middle 80s late this morning. The high was in the lower 90s this afternoon before some thunderstorms just missed us. They did knock the temperature back into the middle 70s at least. For the most part the rain missed us except for just enough to wet the ground.

Weather Station Data

This table contains the temperature data from my weather station in degrees Fahrenheit.
Today
TemperatureDew Point Feels Like
Average 75.7 ℉ 68.9 ℉ 77.8 ℉
High 91.9 ℉ at 73.9 ℉ at 101.2 ℉ at
Low 65.3 ℉ at 65 ℉ at 65.3 ℉ at
Range26.6 ℉ 8.9 ℉35.9 ℉
Yesterday
TemperatureDew Point Feels Like
Average79.3 ℉ 69 ℉ 82.2 ℉
High95.2 ℉ at 73 ℉ at 104.3 ℉ at
Low67.3 ℉ at 65.1 ℉ at 67.3 ℉ at
Range27.9 ℉ 7.9 ℉37 ℉
Difference
TemperatureDew Point Feels Like
Average3.6℉ cooler0.1℉ cooler 4.4℉ cooler
High3.3℉ cooler 0.9℉ warmer 3.1℉ cooler
Low2℉ cooler 0.1℉ cooler 2℉ cooler

There were 13.6 cooling degree days today.

There were 16 cooling degree days yesterday.

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This table contains the relative humidity data from my weather station.
AverageHighLow Range
81%99% at 53% at 46%
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This table contains the relative barometric pressure data from my weather station in Inches of mercury.
PressureTime
Average30.08″
High30.17″
Low30.02″
Range0.15″
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This table contains the solar data from my weather station
UV Radiation MaxSolar Radiation Max
8 at 908.9 W/m² at
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This table sunrise and sunset information for the day.
TodayDifference From Yesterday
Sunrise at 109.02° and 0.22° north of yesterday's sunset.
Sunset at 109.01° and 0.22° north of yesterday's sunset.
Solar Noon at 69.98° and 0.21° higher 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 Wind1.2 mph15.4 mph
High3.3 mph21.7 mph
DirectionWSW
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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″0.02″18.22″
The last measurable rain was days ago on and when 0.02″ rain fell. The Storm Total was 0.02″.
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This table contains the lightning data from my weather station.
MaxTime
Strikes Per Hour185
Strikes Per Day213
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