Annual mean 13°C · wettest around May · prevailing wind W
Warmest
29.7 °C
Coldest
2.6 °C
Wettest
42%
Windiest
4.6 m/s
Prevailing
W
3.5 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 Penn over the whole year is 13°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -1°C. Penn has no sharply defined rainy season: the chance of rain on a given day runs from 40% in January, the driest month, to 46% in May, the wettest. Winds in Penn are highest in March, averaging 3.2 m/s (12 km/h), and lightest in August, at 1.7 m/s (6 km/h). The prevailing wind is from the W. The clearest skies in Penn come in July, when the sky is typically 34% covered; January is the cloudiest month, at 52%.
Month by month Penn 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
3°C
-1°C
-3°C
40%
52%
2.9 m/s
1
0
9
February
6°C
1°C
0°C
42%
48%
2.9 m/s
4
0
19
March
10°C
3°C
5°C
41%
46%
3.2 m/s
12
0
38
April
16°C
8°C
12°C
43%
47%
3.1 m/s
35
4
61
May
21°C
14°C
19°C
46%
52%
2.4 m/s
58
20
60
June
26°C
19°C
26°C
42%
38%
2.3 m/s
56
47
31
July
29°C
22°C
31°C
43%
34%
1.8 m/s
23
60
5
August
28°C
20°C
29°C
42%
40%
1.7 m/s
39
59
13
September
24°C
16°C
24°C
43%
42%
1.8 m/s
65
38
42
October
18°C
11°C
16°C
42%
45%
2.1 m/s
54
11
69
November
11°C
4°C
7°C
41%
39%
2.5 m/s
15
0
45
December
5°C
1°C
1°C
43%
51%
2.5 m/s
0
0
17
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 Penn weather by season
Year round, Penn has days of about 3°C at their warmest in January, its coolest month, and 29°C in July, its warmest; the coolest hours of the day run from -1°C to 22°C through the year, and the average temperature over the year is 13°C around the clock. Rain is most likely around May and least likely around January. 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.
Penn weather in winterDecember to February
High 5°CLow 0°CRain 42%
Winter in Penn has typical daily highs of about 5°C and lows of about 0°C, with a 42% chance of rain on a given day.
Penn weather in springMarch to May
High 15°CLow 8°CRain 43%
Spring in Penn has typical daily highs of about 15°C and lows of about 8°C, with a 43% chance of rain on a given day.
Penn weather in summerJune to August
High 28°CLow 20°CRain 42%
Summer in Penn has typical daily highs of about 28°C and lows of about 20°C, with a 42% chance of rain on a given day.
Penn weather in autumnSeptember to November
High 18°CLow 11°CRain 42%
Autumn in Penn has typical daily highs of about 18°C and lows of about 11°C, with a 42% chance of rain on a given day.
When is the rainy season in Penn?
Penn has no sharply defined rainy season: the chance of rain on a given day runs from 40% in January, the driest month, to 46% in May, the wettest.
What time of year is Penn windiest?
Winds in Penn are highest in March, averaging 3.2 m/s (12 km/h), and lightest in August, at 1.7 m/s (6 km/h). The prevailing wind is from the W.
What is the average temperature in Penn year round?
The average temperature in Penn over the whole year is 13°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -1°C.