Pennsylvania, United States Weather

  1. Pennsylvania, United States Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Pennsylvania over the next 12 hours
  7. Temperature and possibility of rain in Pennsylvania in the coming days
  8. Rainfall in Pennsylvania in the coming days
  9. Pennsylvania Weather Summary
  10. Weather averages by month
  11. Pennsylvania's weather
  12. Frequently asked questions
  13. Comments
Pennsylvania, Weather
(Photo by Alan W on Unsplash)

Current conditions

Updated:
11°C
51.8°F
°C °F

Condition: Clear Sky

Pressure: 997 hPa

Feel like: 8 °C

Temperature: 11°C

Cloud: 8%

Humidity: 55%

Wind: SE - 8 km/h

Visibility: 35.8 km

Weather forecast

Tue
12 May
3°C / 17°C
Overcast
Wed
13 May
7°C / 16°C
Slight Rain Showers
Thu
14 May
6°C / 8°C
Drizzle
Fri
15 May
6°C / 19°C
Overcast
Sat
16 May
10°C / 23°C
Overcast
Hourly forecast today:
02:00 AM
2° / 11°
2° / 11°
Clear Sky
55% 30 km/h
03:00 AM
1° / 9°
1° / 9°
Clear Sky
56% 25 km/h
04:00 AM
0° / 9°
0° / 9°
Overcast
53% 18 km/h
05:00 AM
0° / 8°
0° / 8°
Partly Cloudy
52% 13 km/h
06:00 AM
0° / 7°
0° / 7°
Clear Sky
56% 6 km/h
07:00 AM
0° / 7°
0° / 7°
Overcast
59% 3 km/h
08:00 AM
0° / 6°
0° / 6°
Overcast
64% 2 km/h
09:00 AM
0° / 6°
0° / 6°
Overcast
69% 3 km/h
10:00 AM
0° / 5°
0° / 5°
Overcast
68% 3 km/h
11:00 AM
0° / 6°
0° / 6°
Overcast
66% 4 km/h
12:00 PM
2° / 8°
2° / 8°
Partly Cloudy
66% 6 km/h

30 Day Averages and Extremes

  • Average high 18.1°C
  • Average low 7.53°C
  • Hottest day 30°C (18 May 2026)
  • Coldest day 2°C (01 May 2026)
  • Average humidity 69.87%
  • Days with precipitation 25 days
  • Highest precipitation 58 mm (13 May 2026)

Yesterday's Data

  • Max: 18°C
  • Min: 10°C
  • Total Precipitation: 0 mm

Temperature and possibility of rain in Pennsylvania over the next 12 hours

Temperature and possibility of rain in Pennsylvania in the coming days

Rainfall in Pennsylvania in the coming days

Pennsylvania Climate Summary

Pennsylvania features a Humid continental, no dry season, warm summer (Köppen classification: Dfb), with an average annual temperature of 10.55ºC (50.99ºF), which is about -2.09% lower than the national average for United States. Annually, the city experiences approximately 71.61 millimeters (2.82 inches) of rainfall, spread across 131.46 rainy days, accounting for 36.02% of the year.

Longitude 41.2033216
Latitude -77.1945247
Yearly high temperature 13.86ºC (56.95ºF)
Yearly low temperature 4.07ºC (39.33ºF)
Hottest month July 27.82ºC (82.08ºF)
Coldest month February -6.44ºC (20.41ºF)
Yearly precip 71.61mm (2.82in)
Days with rainfall 131.46 days (36.02%)
Driest month November (80.31%)
Wettest month April (77.69%)

Weather averages by month

Month High / Low (°C) Rain
January -0.76° / -7.5° 8.91 days
February 1.21° / -6.44° 10.18 days
March 6.41° / -2.37° 10.36 days
April 13.04° / 2.86° 12.82 days
May 20.21° / 8.73° 13.45 days
June 24.64° / 12.27° 12.91 days
July 27.82° / 15.0° 13.73 days
August 26.02° / 13.56° 12.64 days
September 22.34° / 10.73° 9.55 days
October 15.23° / 5.74° 9.73 days
November 7.66° / -0.32° 7.27 days
December 2.5° / -3.46° 9.91 days

Pennsylvania's weather

Frequently asked questions

1. What is the hottest month in Pennsylvania?

July has the highest average monthly temperature (daily mean of 27.82ºC) and February are the coolest (daily mean of -6.44ºC).

2. What should I wear in Pennsylvania today?

For today's mild weather in Pennsylvania, with temperatures between 12ºC to 15ºC (53.6ºF to 59.0ºF), consider wearing:
- Light jacket (for cooler periods)
- Sun hat (if spending time outdoors)
- Scarf (optional)
- Long-sleeve shirt or blouse

Temperature

Early
1°C / 9°C
Morning
0°C / 6°C
Afternoon
0°C / 13°C
Evening
0°C / 14°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 445
  • CO 150
  • NH3 0
  • NO2 2
  • O3 73
  • PM10 3
  • PM25 2
  • SO2 0
  • CH4 1,387

Sunrise / Sunset

09:54
00:16