Weather For Mount Joy, PA On Sunday, January 18, 2026

Summary

This morning when I woke up it was similar than yesterday. The temperature was in the upper 20s after an overnight low in the middle 20s.. Snow began falling shortly after I woke up. The snow seemed to be winding down by about dawn but we got another couple of inches. It was barely above freezing late this morning. By late this afternoon it had dropped into the upper 20s after a high only in the middle 30s.

Weather Station Data

This table contains the temperature data from my weather station in degrees Fahrenheit.
Today
TemperatureDew Point Feels Like
Average 27.6 ℉ 24.9 ℉ 27.3 ℉
High 34 ℉ at 33.1 ℉ at 34 ℉ at
Low 17.6 ℉ at 12.1 ℉ at 13.9 ℉ at
Range16.4 ℉ 21 ℉20.1 ℉
Yesterday
TemperatureDew Point Feels Like
Average30.7 ℉26.3 ℉30.5 ℉
High41.9 ℉ at 34.1 ℉ at 41.9 ℉ at
Low23.5 ℉ at 17.9 ℉ at 22.8 ℉ at
Range18.4 ℉ 16.2 ℉19.1 ℉
Difference
TemperatureDew Point Feels Like
Average3.1 ℉ cooler1.4 ℉ cooler 3.2 ℉ cooler
High7.9 ℉ cooler 1 ℉ cooler 7.9 ℉ cooler
Low5.9 ℉ cooler 5.8 ℉ cooler 8.9 ℉ cooler

There were 39.2 heating degree days today

There were 32 heating degree days yesterday

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This table contains the relative humidity data from my weather station.
AverageHighLow Range
89%99% at 73% at 26%
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This table contains the relative barometric pressure data from my weather station in Inches of mercury.
PressureTime
Average30.05″
High30.16″
Low29.95″
Range0.21″
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This table contains the solar data from my weather station
UV Radiation MaxSolar Radiation Max
Not Recorded!
23.2 W/m² at
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This table sunrise and sunset information for the day.
TodayDifference From Yesterday
Sunrise at 72.82° and 0.2° north of yesterday's sunset.
Sunset at 72.71° and 0.2° north of yesterday's sunset.
Solar Noon at 29.46° and 0.2° 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 Wind0.9 mph11.9 mph
High3.1 mph18.3 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 hour17.72″ 17.72″0″17.72″17.72″
The last measurable rain was yesterday on when 17.72″ of rain fell. The storm total was 17.72″.
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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 days ago on .
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