Weather For Mount Joy, PA On Tuesday, January 27, 2026
This morning when I woke up it was a bit colder than yesterday. The temperature was in the lower teens. Dawn brought clear skies with a low in the upper single digits, well above the forecast. It was into the middle teens by mid morning under bright sunshine. There were plenty of clouds by mid afternoon. The temperature was into the upper teens. We made it into the lower 20s by late afternoon.
This table contains the temperature data from my weather station in degrees Fahrenheit.
Today
Temperature Dew Point Feels Like
Average 16 ℉ 5 ℉ 13.5 ℉ High 21.4 ℉ at 3:06 PM 10.8 ℉ at 6:50 PM 21.2 ℉ at 3:05 PM Low 9 ℉ at 5:59 AM 0.3 ℉ at 11:46 AM -2.1 ℉ at 8:25 AM Range 12.4 ℉ 10.5 ℉ 23.3 ℉
Yesterday
Temperature Dew Point Feels Like
Average 19.3 ℉ 11.9 ℉ 16.3 ℉ High 26.2 ℉ at 1:12 PM 17.9 ℉ at 9:36 AM 25.9 ℉ at 1:11 PM
Low 14.7 ℉ at 12:00 AM 5.7 ℉ at 11:52 PM 3.1 ℉ at 9:15 PM
Range 11.5 ℉ 12.2 ℉ 22.8 ℉
Difference
Temperature Dew Point Feels Like
Average 3.3 ℉ cooler 6.9 ℉ cooler 2.8 ℉ cooler
High 4.8 ℉ cooler 7.1 ℉ cooler 4.7 ℉ cooler Low 5.7 ℉ cooler 5.4 ℉ cooler 5.2 ℉ cooler
There were 49.8 heating degree days today
There were 45 heating degree days yesterday
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This table contains the relative humidity data from my weather station.
Average High Low Range
61% 76% at 3:41 AM 46% at 1:07 PM 30%
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This table contains the relative barometric pressure data from my weather station in Inches of mercury.
Pressure Time
Average 30.16″ High 30.24″ 8:16 AM Low 30.03″ 3:06 PM Range 0.21″
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This table contains the solar data from my weather station
UV Radiation Max Solar Radiation Max 3 at 10:21 AM 368.2 W/m² at 10:21 AM
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This table sunrise and sunset information for the day.
Today Difference From Yesterday Sunrise 7:18:57 AM at 74.84° 47 seconds earlier than yesterday and 0.24° north of yesterday's sunset. Sunset
5:18:59 PM at 74.77°1 minute and 11 seconds later than yesterday and 0.25° north of yesterday's sunset.Solar Noon 12:18:45 PM at 31.57°12 seconds later than yesterday and 0.26° higher than yesterday.Sunlight Duration 10 hours and 2 seconds 1 minute and 58 seconds longer than yesterday
about data sources
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This table contains the wind data from my weather station in miles per hour.
Wind Speed Gust Time
Average Wind 2.5 mph 14.5 mph 9:03 PM High 6.6 mph 17.7 mph 8:58 AM Direction SSW
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This table contains the rainfall data from my weather station in inches.
Daily Rain Max Hourly Event Rain Yesterday's Rain Weekly Rain Monthly Rain Yearly Rain
0″ 0″ per hour 0″ 0″ 0″ 17.72″ 17.72″ The last measurable rain was 10
days ago on Saturday, January 17, 2026
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This table contains the lightning data from my weather station.
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The data on this page is collected from my personal weather station. It may not be and is not accurate at times. The Ambient Weather WS-5000 seems to be flaky under certain circumstances. The description is from my own observations.
I put this here for my own personal records. If you find it interesting or useful, that’s great! Especially in the latter half of 2025, I started noticing some flaky readings. I think the weather station is slowly dying. I am doing my best to come up with ways not to show the obvious errors.