Annual mean 22°C · wettest around May · prevailing wind S
Warmest
27.2 °C
Coldest
24.8 °C
Wettest
9%
Windiest
3.8 m/s
Prevailing
S
2.9 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Pensilvania over the whole year is 22°C. September is the hottest month, with highs of about 27°C; September is the coldest, with lows of about 17°C. Pensilvania has no sharply defined rainy season: the chance of rain on a given day runs from 9% in February, the driest month, to 19% in May, the wettest. Winds in Pensilvania are highest in July, averaging 2.3 m/s (8 km/h), and lightest in April, at 1.6 m/s (6 km/h). The prevailing wind is from the S. The clearest skies in Pensilvania come in January, when the sky is typically 61% covered; April is the cloudiest month, at 77%.
Month by month Pensilvania climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
26°C
18°C
27°C
11%
61%
1.9 m/s
42
42
29
February
25°C
18°C
27°C
9%
71%
1.8 m/s
45
45
29
March
25°C
19°C
27°C
14%
76%
1.7 m/s
44
42
28
April
25°C
19°C
27°C
18%
77%
1.6 m/s
44
42
28
May
26°C
20°C
27°C
19%
75%
1.8 m/s
41
46
27
June
25°C
19°C
27°C
16%
73%
1.8 m/s
43
47
28
July
26°C
19°C
26°C
12%
66%
2.3 m/s
42
52
28
August
27°C
19°C
27°C
12%
66%
2.1 m/s
40
49
28
September
27°C
17°C
27°C
16%
65%
2.1 m/s
39
44
27
October
25°C
17°C
27°C
17%
70%
1.8 m/s
45
44
29
November
25°C
18°C
27°C
18%
73%
1.6 m/s
44
42
29
December
25°C
17°C
27°C
10%
69%
1.7 m/s
43
42
29
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Pensilvania weather by season
Year round, Pensilvania has days of about 25°C at their warmest in November, its coolest month, and 27°C in September, its warmest; the coolest hours of the day run from 17°C to 20°C through the year, and the average temperature over the year is 22°C around the clock. Rain is most likely around May and least likely around February. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Pensilvania weather in winterDecember to February
High 25°CLow 17°CRain 10%
Winter in Pensilvania has typical daily highs of about 25°C and lows of about 17°C, with a 10% chance of rain on a given day.
Pensilvania weather in springMarch to May
High 25°CLow 19°CRain 17%
Spring in Pensilvania has typical daily highs of about 25°C and lows of about 19°C, with a 17% chance of rain on a given day.
Pensilvania weather in summerJune to August
High 26°CLow 19°CRain 13%
Summer in Pensilvania has typical daily highs of about 26°C and lows of about 19°C, with a 13% chance of rain on a given day.
Pensilvania weather in autumnSeptember to November
High 26°CLow 18°CRain 17%
Autumn in Pensilvania has typical daily highs of about 26°C and lows of about 18°C, with a 17% chance of rain on a given day.
When is the rainy season in Pensilvania?
Pensilvania has no sharply defined rainy season: the chance of rain on a given day runs from 9% in February, the driest month, to 19% in May, the wettest.
What time of year is Pensilvania windiest?
Winds in Pensilvania are highest in July, averaging 2.3 m/s (8 km/h), and lightest in April, at 1.6 m/s (6 km/h). The prevailing wind is from the S.
What is the average temperature in Pensilvania year round?
The average temperature in Pensilvania over the whole year is 22°C. September is the hottest month, with highs of about 27°C; September is the coldest, with lows of about 17°C.