Annual mean 12°C · wettest around May · prevailing wind SW
Warmest
27.0 °C
Coldest
-0.2 °C
Wettest
35%
Windiest
4.8 m/s
Prevailing
SW
4.0 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 McKeesport over the whole year is 12°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -3°C. McKeesport has no sharply defined rainy season: the chance of rain on a given day runs from 31% in September, the driest month, to 40% in May, the wettest. Winds in McKeesport are highest in March, averaging 3.7 m/s (13 km/h), and lightest in August, at 2.2 m/s (8 km/h). The prevailing wind is from the SW. The clearest skies in McKeesport come in September, when the sky is typically 45% covered; January is the cloudiest month, at 74%.
Month by month McKeesport 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
0°C
-3°C
-5°C
36%
74%
3.6 m/s
1
0
7
February
4°C
-0°C
-2°C
37%
63%
3.6 m/s
2
0
16
March
9°C
3°C
3°C
38%
57%
3.7 m/s
9
0
34
April
14°C
7°C
9°C
39%
58%
3.5 m/s
29
2
55
May
19°C
12°C
17°C
40%
56%
2.8 m/s
60
14
64
June
24°C
17°C
24°C
38%
49%
2.6 m/s
69
37
44
July
27°C
19°C
27°C
37%
47%
2.3 m/s
51
63
16
August
26°C
18°C
26°C
34%
50%
2.2 m/s
61
55
25
September
23°C
15°C
22°C
31%
45%
2.3 m/s
71
33
52
October
17°C
10°C
14°C
34%
51%
2.6 m/s
43
7
67
November
9°C
4°C
4°C
33%
54%
3.2 m/s
9
0
34
December
4°C
1°C
-1°C
37%
71%
3.3 m/s
1
0
15
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 McKeesport weather by season
Year round, McKeesport has days of about 0°C at their warmest in January, its coolest month, and 27°C in July, its warmest; the coolest hours of the day run from -3°C to 19°C through the year, and the average temperature over the year is 12°C around the clock. Rain is most likely around May and least likely around September. 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.
McKeesport weather in winterDecember to February
High 3°CLow -1°CRain 37%
Winter in McKeesport has typical daily highs of about 3°C and lows of about -1°C, with a 37% chance of rain on a given day.
McKeesport weather in springMarch to May
High 14°CLow 7°CRain 39%
Spring in McKeesport has typical daily highs of about 14°C and lows of about 7°C, with a 39% chance of rain on a given day.
McKeesport weather in summerJune to August
High 26°CLow 18°CRain 36%
Summer in McKeesport has typical daily highs of about 26°C and lows of about 18°C, with a 36% chance of rain on a given day.
McKeesport weather in autumnSeptember to November
High 16°CLow 9°CRain 33%
Autumn in McKeesport has typical daily highs of about 16°C and lows of about 9°C, with a 33% chance of rain on a given day.
When is the rainy season in McKeesport?
McKeesport has no sharply defined rainy season: the chance of rain on a given day runs from 31% in September, the driest month, to 40% in May, the wettest.
What time of year is McKeesport windiest?
Winds in McKeesport are highest in March, averaging 3.7 m/s (13 km/h), and lightest in August, at 2.2 m/s (8 km/h). The prevailing wind is from the SW.
What is the average temperature in McKeesport year round?
The average temperature in McKeesport over the whole year is 12°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -3°C.