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Contents
- The climate of McKeesport
- The best time to visit McKeesport
- The worst time to visit McKeesport
- Spring weather in McKeesport
- Summer weather in McKeesport
- Autumn weather in McKeesport
- Winter weather in McKeesport
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of McKeesport
McKeesport accommodates climatic conditions that are largely classified under the Köppen climate classification as Cfa. This category essentially denotes a humid subtropical climate with no dry season, typically attributed to a geographical position that is situated comfortably in the northeastern part of the United States within Pennsylvania.
Throughout the year, McKeesport's weather display considerable changes, reflecting its position within a climate that is sensitive to seasonal variations. The relative humidity levels range from 74% to 85%, indicating a generally humid environment. The highest humidity is noted in the heart of winter - during January and February - whereas the lowest levels occur in the warmer months of July and August.
Rainfall is another climatic element that exhibits a considerable degree of diversity throughout the year. It varies from 0.55" (14mm) to 1.26" (32mm), with the highest rainfall experienced in May, indicating enriched moisture within the spring season. McKeesport is also known to experience the occasional snowfall, with the maximum of 1.65" (42mm) witnessed in January and February, while snow remains absent from June to September. Fluctuations in temperature are noteworthy with highs varying from 33.4°F (0.8°C) in January to 83.3°F (28.5°C) in July, indicating a mild winter and warm summer.
The wind speed in McKeesport is relatively stable, albeit some changes are noticed throughout the year. Themph measurement lies between 4.7 in August, 8 in April, revealing moderate breezes that contribute to the region's overall pleasant environment.
Sunshine hours are reliant on the time of year, with the longest daylight duration of 15 hours seen in June, and the shortest period of 9.3 hours in December. The UV Index follows a similar pattern with a peak in summer recording a 6 and a minimum of 1 in December, demonstrating typical seasonal swings.
Throughout the year, McKeesport's weather display considerable changes, reflecting its position within a climate that is sensitive to seasonal variations. The relative humidity levels range from 74% to 85%, indicating a generally humid environment. The highest humidity is noted in the heart of winter - during January and February - whereas the lowest levels occur in the warmer months of July and August.
Rainfall is another climatic element that exhibits a considerable degree of diversity throughout the year. It varies from 0.55" (14mm) to 1.26" (32mm), with the highest rainfall experienced in May, indicating enriched moisture within the spring season. McKeesport is also known to experience the occasional snowfall, with the maximum of 1.65" (42mm) witnessed in January and February, while snow remains absent from June to September. Fluctuations in temperature are noteworthy with highs varying from 33.4°F (0.8°C) in January to 83.3°F (28.5°C) in July, indicating a mild winter and warm summer.
The wind speed in McKeesport is relatively stable, albeit some changes are noticed throughout the year. Themph measurement lies between 4.7 in August, 8 in April, revealing moderate breezes that contribute to the region's overall pleasant environment.
Sunshine hours are reliant on the time of year, with the longest daylight duration of 15 hours seen in June, and the shortest period of 9.3 hours in December. The UV Index follows a similar pattern with a peak in summer recording a 6 and a minimum of 1 in December, demonstrating typical seasonal swings.
The best time to visit McKeesport
For potential visitors, the optimum time to visit McKeesport is between May and September, when daylight hours exceed 14 and sunshine hours range from 8.9 to 10.2. The temperatures during this period achieves a pleasant range between 72.1°F (22.3°C) to 83.3°F (28.5°C). Despite the rise in temperature, relative humidity decreases, striking a balance between warmth and moisture that results in a comfortable climate.
The worst time to visit McKeesport
On the contrary, the least favorable time to visit McKeesport is from December to February. This period sees the coldest temperatures, between 20.7°F (-6.3°C) to 37.6°F (3.1°C), accompanied by highest levels of humidity, creating harsh, damp and cold conditions. These conditions might deter visitors looking for a relatively milder weather.
Spring weather in McKeesport
Spring in McKeesport, which falls from March to May, sees a perceptible increase in temperature ranging from 47.8°F (8.8°C) to 72.1°F (22.3°C). Wind speed experiences a minor increase, reaching its annual peak of 7.4mph (11.9km/h) in April. The rainfall also spikes in May, recording the yearly maximum of 1.26" (32mm).
Summer weather in McKeesport
Summer lasts from June to August in McKeesport and boasts warm temperatures, with highs peaking at 83.3°F (28.5°C) in July. Despite this, summer is the least humid season, encouraging outdoor activities. Moreover, June endows McKeesport with the longest daylight hours of 15, offering ample sunshine.
Autumn weather in McKeesport
Autumn, comprising September to November, observes a gradual decline in temperature. September holds onto the warmth of summer with high temperatures around 75.6°F (24.2°C), but by November, temperatures drop to 49.3°F (9.6°C). Precipitation is moderately low, with rainfall ranging between 0.55" (14mm) to 0.87" (22mm).
Winter weather in McKeesport
Winter extends from December to February, exhibiting cold temperatures with highs only reaching between 33.4°F (0.8°C) to 37.6°F (3.1°C). However, this season also witnesses the most substantial level of snowfall, with a peak of 1.65" (42mm) in January and February. These snowy conditions signify that McKeesport indeed experiences a typical northern hemisphere winter.
Weather in January
In McKeesport, Pennsylvania, January opens the year with a frosty embrace. The city experiences cold temperatures ranging from 20.7°F (-6.3°C) to an average high of 33.4°F (0.8°C), turning the landscape into a winter wonderland. Weather in January »
Weather in February
February in McKeesport shows a slight increase in temperatures, yet winter's grip remains evident. As the city transitions from 20.7°F (-6.3°C) in January to 23.4°F (-4.8°C) and eventually climbs to 37.6°F (3.1°C), the thaw begins to set in, albeit very gradually. Weather in February »
Weather in March
March in this Pennsylvanian city brings some signs of thermal relief as the snowfall decreases from 1.65" (42mm) in February to 1.18" (30mm). Longer daylight hours fuel dreams of spring. Again, icy rains are common, often transforming into heavy downpours or light sprinkles. Weather in March »
Weather in April
April nudges McKeesport out of its winter cocoon, bringing warmer temperatures and increased rainfall. The green revival begins in earnest, with budding flowers and trees donning a spring attire. Showers intersperse with sunnier days, breathing life into flora that withstood the winter freeze. Weather in April »
Weather in May
May in McKeesport witnesses a significant warm-up, inviting vibrant springtime activities. Temperatures rise, and the city’s parks and outdoor spaces teem with people, mirth, and merriment. As an indication of the gently rising thermals, the rainfall peaks at 1.26" (32mm), marking the wettest month of the year. Weather in May »
Weather in June
In June, summer swings into full gear in McKeesport. Clear, sunny days offset the humidity characteristic of mid-year. It is also the month that provides the longest daylight hours, ensuring ample time for leisurely pursuits. However, sporadic showers still appear on the forecast, cooling down the city after scorching daytime temperatures. Weather in June »
Weather in July
July stands as the warmest month in McKeesport, with temperatures ranging from 62.6°F (17°C) to an average high of 83.3°F (28.5°C). Summer festivals and outdoor events abound, drawing visitors and locals alike to participate in merrymaking. Weather in July »
Weather in August
While August represents the meteorological peak of summer in many regions, McKeesport experiences a slight yet perceptible dip in temperatures. The transition to cooler weather begins to set in, especially noticeable during late evening hours. Weather in August »
Weather in September
In September, McKeesport begins to say its goodbyes to summer. The season’s warmth persists early on, but later the city witnesses signs of fall. Days start to shorten drastically by this month. Cold fronts pass over the city, leading to crisper weather and occasionally, breezier conditions. Weather in September »
Weather in October
October in McKeesport, Pennsylvania is synonymous with autumn. The city is awash with fall colors, offset by the cool, often overcast sky. As the wind speed increases to an average of 6.2mph (10km/h), it beckons a change in wardrobe, with layers becoming a necessity. Weather in October »
Weather in November
As November rolls in, McKeesport transitions into late autumn. Trees shed their colorful leaves, leaving bare branches against an often gray sky. The weather continues to cool, with occasional frosty mornings necessitating heavy coats and scarves. Weather in November »
Weather in December
December means winter has arrived in McKeesport. Temperatures slide to a range between 28.4°F (-2°C) and a high of 39.6°F (4.2°C), similar to January. The chance of snow increases notably as the month progresses, the first flurries often romantically termed as 'the first snow of winter'. Weather in December »
Updated: Jun 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
In McKeesport, Pennsylvania, the average lowest temperatures are observed in January, with a high of 33.4°F (0.8°C) and a low of 20.7°F (-6.3°C).
How many days does it rain?
Throughout the year, there are 128 rainfall days, and 10.2" (259mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through May, October through December.
When does it snow the most?
The months with the most snowfall are January and February, with an average 1.65" (42mm) of accumulated snow.
How much does it snow in McKeesport?
Throughout the year, there are 50 snowfall days, and 6.69" (170mm) of snow is accumulated.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 3h of sunshine.
What is the most humid month?
The most humid month is February, with an average relative humidity of 85%.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in McKeesport, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the rainiest month?
The month with the most rainfall is May, when the rain falls for 15 days and typically aggregates up to 1.26" (32mm) of precipitation.
What is the month with the highest UV index in McKeesport?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When it does not snow?
In McKeesport, snow does not fall in June through September.
When are the longest days?
The month with the longest days is June, with an average of 15h and 0min of daylight.
What is the warmest month?
With average high temperatures of 83.3°F (28.5°C) and lows of 62.6°F (17°C), July is the warmest month.
What is the least humid month?
August is the least humid month, with an average relative humidity of 74%.
What month has the most sunshine in McKeesport?
August has the most sunshine of the year, with an average of 10.2h of sunshine.
What is the driest month?
September and November are months with the least rain when the rain falls for 9 days and typically aggregates up to 0.55" (14mm) of rain.
What is the month with the shortest days in McKeesport?
The month with the shortest days is December, with an average of 9h and 24min of daylight.
What is the month with the lowest UV index?
December is the month with the lowest UV index, with an average maximum UV index of 1.
Average temperature
McKeesport, PA
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.4°F).
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure
McKeesport, PA
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
McKeesport, PA
- Average wind speed in January:
8mph - Average wind speed in February:
7.6mph - Average wind speed in March:
7.3mph - Average wind speed in April:
7.4mph - Average wind speed in May:
6mph - Average wind speed in June:
5.6mph
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.7mph - Average wind speed in September:
5.1mph - Average wind speed in October:
6.2mph - Average wind speed in November:
6.8mph - Average wind speed in December:
7.3mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity
McKeesport, PA
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is August (74%).
Average rainfall
McKeesport, PA
- Average rainfall in January:
0.67" - Average rainfall in February:
0.83" - Average rainfall in March:
0.79" - Average rainfall in April:
0.98" - Average rainfall in May:
1.26" - Average rainfall in June:
1.1"
- Average rainfall in July:
1.02" - Average rainfall in August:
0.79" - Average rainfall in September:
0.55" - Average rainfall in October:
0.87" - Average rainfall in November:
0.55" - Average rainfall in December:
0.79"
The wettest month (with the highest rainfall) is May (1.26").
The driest months (with the least rainfall) are September and November (0.55").
Average rainfall days
McKeesport, PA
- Average rainfall days in January:
7.9 days - Average rainfall days in February:
7.1 days - Average rainfall days in March:
10.2 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
15 days - Average rainfall days in June:
13.4 days
- Average rainfall days in July:
13.8 days - Average rainfall days in August:
12.1 days - Average rainfall days in September:
9 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
7.2 days - Average rainfall days in December:
8.5 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is February (7.1 days).
Average snowfall
McKeesport, PA
- Average snowfall in January:
1.65" - Average snowfall in February:
1.65" - Average snowfall in March:
1.18" - Average snowfall in April:
0.24" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The months with the highest snowfall are January and February (1.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
McKeesport, PA
- Average snowfall days in January:
14.4 days - Average snowfall days in February:
11.4 days - Average snowfall days in March:
7.2 days - Average snowfall days in April:
2.1 days - Average snowfall days in May:
0.2 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.4 days - Average snowfall days in November:
4.2 days - Average snowfall days in December:
10.1 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
McKeesport, PA
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
3h and 0min - Average sunshine in February:
3h and 4min - Average sunshine in March:
5h and 2min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 2min - Average sunshine in November:
4h and 5min - Average sunshine in December:
3h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days
McKeesport, PA
- Average sunshine days in January:
13.9 days - Average sunshine days in February:
13.3 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
12.5 days
- Average sunshine days in July:
14.9 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
18.6 days - Average sunshine days in October:
16.8 days - Average sunshine days in November:
19.6 days - Average sunshine days in December:
16.5 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (12.3 days).
Average UV index
McKeesport, PA
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
McKeesport, PA
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
McKeesport, PA
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).
McKeesport, Pennsylvania, USA
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