Weather in Allegheny County for May 2025
Snowfall in Allegheny County during May is quite rare, with fewer than 2 snowy days on average.
According to Allegheny County snow forecast for May 2025, 1 snowy day is expected at the beginning of May at Sunday, May 4.The forecast for the first days of May 2025 in Allegheny County predicts a temperature of 18.3 °F , which is warmer than usual.
In general, the average temperature in Allegheny County at the beginning of May is 15.9 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 24.3 °F by the end of May.
Allegheny County experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 116.6 mm.
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Allegheny County Weather May
Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
---|---|---|---|---|---|---|
1 22° | 2 21° | 3 13° | ||||
4 10° | 5 11° | 6 13° | 7 21° | 8 25° | 9 18° | 10 17° |
11 19° | 12 20° | 13 21° | 14 20° | 15 22° | 16 21° | 17 20° |
18 23° | 19 25° | 20 23° | 21 26° | 22 26° | 23 23° | 24 25° |
25 23° | 26 26° | 27 24° | 28 24° | 29 22° | 30 25° | 31 26° |
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Temperatures trend during May in Allegheny County
May weather day by day
Date | Weather | Temperatures | Rain | Snow | More |
---|---|---|---|---|---|
May 1 | Patchy rain possible | 22° /11° | 0.9 mm | 0 cm | |
May 2 | Moderate rain | 21° /13° | 5.3 mm | 0 cm | |
May 3 | Patchy rain possible | 13° /5° | 0.3 mm | 0 cm | |
May 4 | Patchy rain possible | 10° /2° | 0.2 mm | 0.1 cm | |
May 5 | Patchy rain possible | 11° /1° | 1.8 mm | 0 cm | |
May 6 | Patchy rain possible | 13° /8° | 2 mm | 0 cm | |
May 7 | Moderate or heavy rain shower | 21° /12° | 5.7 mm | 0 cm | |
May 8 | Overcast | 25° /15° | 1.9 mm | 0 cm | |
May 9 | Heavy rain at times | 18° /10° | 7.7 mm | 0 cm | |
May 10 | Partly cloudy | 17° /7° | 0.5 mm | 0 cm | |
May 11 | Partly cloudy | 19° /7° | 2.6 mm | 0 cm | |
May 12 | Overcast | 20° /8° | 2.6 mm | 0 cm | |
May 13 | Moderate or heavy rain shower | 21° /10° | 5.4 mm | 0 cm | |
May 14 | Cloudy | 20° /11° | 3.6 mm | 0 cm | |
May 15 | Sunny | 22° /11° | 1.9 mm | 0 cm | |
May 16 | Moderate or heavy rain shower | 21° /10° | 1.8 mm | 0 cm | |
May 17 | Overcast | 20° /10° | 5.5 mm | 0 cm | |
May 18 | Sunny | 23° /9° | 2.3 mm | 0 cm | |
May 19 | Patchy rain possible | 25° /11° | 1.2 mm | 0 cm | |
May 20 | Moderate or heavy rain shower | 23° /12° | 8.4 mm | 0 cm | |
May 21 | Overcast | 26° /11° | 0 mm | 0 cm | |
May 22 | Sunny | 26° /12° | 0.9 mm | 0 cm | |
May 23 | Overcast | 23° /14° | 7.8 mm | 0 cm | |
May 24 | Cloudy | 25° /13° | 0.2 mm | 0 cm | |
May 25 | Partly cloudy | 23° /10° | 6.1 mm | 0 cm | |
May 26 | Sunny | 26° /9° | 10.5 mm | 0 cm | |
May 27 | Sunny | 24° /12° | 3.4 mm | 0 cm | |
May 28 | Sunny | 24° /11° | 2.3 mm | 0 cm | |
May 29 | Patchy rain possible | 22° /10° | 8.4 mm | 0 cm | |
May 30 | Partly cloudy | 25° /10° | 0 mm | 0 cm | |
May 31 | Sunny | 26° /8° | 0 mm | 0 cm | |
Next |
Allegheny County in May - FAQ
Allegheny County snow forecast May 2025
May rainfall patterns in Allegheny County
UV exposure in Allegheny County during May
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Get accurate weather forecasts for Allegheny County, located at latitude 40.441 and longitude -79.996. Stay updated with localized weather information tailored for Allegheny County.