Weather For Mount Joy, PA On Saturday, January 17, 2026

Summary

This morning when I woke up it was much warmer than yesterday. The temperature was in the upper 20s. Dawn brought snow falling with temperatures in the lower 30s. There was a coating of snow on the ground already. It was actually snowing pretty heavily around mid morning with temperatures in the upper 20s. Late this morning it was still snowing lightly after heavy snow earlier. It left us with a couple of inches of wet fluffy accumulation. Early this afternoon the sun started coming out. It was into the middle 30s by mid afternoon with periods of sun. The high this afternoon was in the lower 40s. By late this evening it had dropped into the middle 20s.

Weather Station Data

This table contains the temperature data from my weather station in degrees Fahrenheit.
Today
TemperatureDew Point Feels Like
Average 30.7 ℉ 26.3 ℉ 30.5 ℉
High 41.9 ℉ at 34.1 ℉ at 41.9 ℉ at
Low 23.5 ℉ at 17.9 ℉ at 22.8 ℉ at
Range18.4 ℉ 16.2 ℉19.1 ℉
Yesterday
TemperatureDew Point Feels Like
Average25.4 ℉13.2 ℉22.8 ℉
High31.5 ℉ at 18.7 ℉ at 31.3 ℉ at
Low17.4 ℉ at 8.6 ℉ at 5.1 ℉ at
Range14.1 ℉ 10.1 ℉26.2 ℉
Difference
TemperatureDew Point Feels Like
Average5.3℉ warmer13.1℉ warmer 7.7℉ warmer
High10.4℉ warmer 15.4℉ warmer 10.6℉ warmer
Low6.1℉ warmer 9.3℉ warmer 17.7℉ warmer

There were 32.3 heating degree days today

There were 41 heating degree days yesterday

Top
This table contains the relative humidity data from my weather station.
AverageHighLow Range
84%99% at 57% at 42%
Top
This table contains the relative barometric pressure data from my weather station in Inches of mercury.
PressureTime
Average30.1″
High30.18″
Low30.02″
Range0.16″
Top
This table contains the solar data from my weather station
UV Radiation MaxSolar Radiation Max
3 at 309.5 W/m² at
Top
This table sunrise and sunset information for the day.
TodayDifference From Yesterday
Sunrise at 72.63° and 0.19° north of yesterday's sunset.
Sunset at 72.51° and 0.2° north of yesterday's sunset.
Solar Noon at 29.25° and 0.2° higher than yesterday.
Sunlight Duration
about data sources
Top
This table contains the wind data from my weather station in miles per hour.
Wind SpeedGustTime
Average Wind1.1 mph8.9 mph
High2.7 mph10.1 mph
DirectionE
Top
This table contains the rainfall data from my weather station in inches.
Daily Rain Max HourlyEvent RainYesterday's RainWeekly RainMonthly RainYearly Rain
17.72″30.16″ per hour17.72″ 0″17.72″17.72″17.72″
Top
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 .
Top