The best times to visit Pittsburgh for ideal weather are
April 30th to June 17th
September 10th to October 14th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Pittsburgh Travel Guide
Weather in Pittsburgh
Average temperatures in Pittsburgh vary somewhat and are seasonally temperate. The area is in the top 78 percent of tourist destinations for pleasant weather. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Pittsburgh, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid-July where highs are regularly around 63.6°F (17.6°C) with temperatures rarely dropping below 48.8°F (9.3°C) at night.
Pittsburgh Temperatures (Fahrenheit)
Pittsburgh Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Pittsburgh Perceived Temperature (F)
Pittsburgh Perceived Temperature (C)
Average Pittsburgh Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of precipitation in Pittsburgh are June, December, and then January. The lowest chance of rain or snow occurs around early September. For example, on the week of September 3rd there are only 2.2 days of precipitation on average. By contrast, it’s most likely to rain or snow in early January with an average of 4.4 days with significant precipitation the week of January 1st.
When can you find snow in Pittsburgh? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Pittsburgh.
Snow on the Ground
The graph below shows the average snow on the ground in Pittsburgh (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Pittsburgh has slightly low to average humidity compared to most tourist destinations. The least humid month is April (44% relative humidity), and the most humid month is December (61.3%).
Wind in Pittsburgh is usually moderate. The windiest month is January, followed by April and February. January’s average wind speed of around 6.3 knots (7.2 MPH or 11.7 KPH) is considered “light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early April where average top sustained speeds reach 13.8 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Pittsburgh.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots.
|Month||Avg. Wind||Meaning (Beaufort)||Avg. Maximum Sustained Wind||Meaning (Beufort)|
|Jan||6.3||a light breeze||12.3||a moderate breeze|
|Feb||6.1||a light breeze||12.3||a moderate breeze|
|Mar||5.9||a light breeze||11.8||a moderate breeze|
|Apr||6.2||a light breeze||12.7||a moderate breeze|
|May||4.7||a light breeze||10.5||a moderate breeze|
|Jun||4.5||a light breeze||10.2||a gentle breeze|
|Jul||4||a light breeze||9.4||a moderate breeze|
|Aug||3.6||light air||8.6||a gentle breeze|
|Sep||3.8||light air||8.9||a moderate breeze|
|Oct||4.8||a light breeze||10||a gentle breeze|
|Nov||5.4||a light breeze||10.8||a moderate breeze|
|Dec||5.8||a light breeze||11.5||a moderate breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Pittsburgh?
As of 6/22/2017 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories.
The Busiest and Least Crowded Months
The busiest month for tourism in Pittsburgh, PA (USA) is May, followed by July and June. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Pittsburgh in October. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Pittsburgh Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 61.2°F (16.2°C) and 32.2°F (0.1°C) with warmer temperatures in the later months. Rain is frequent with 15 to 16 days of precipitation per month. Spring is the busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see moderate precipitation with 14 to 17 days of precipitation per month. June – August is busy season for tourism in Pittsburgh, so lodging and other accommodations may cost slightly more.
Fall (September through November)
Fall daily highs range from 61.9°F (16.6°C) and 37.6°F (3.1°C), which will feel chilly given the humidity and wind. It rains or snows a very great amount: 12 to 16 days per month. Tourism is the slowest during these months due to the weather, so hotels may be lower priced.
Winter (December through February)
Weather is far too cold this time of year in Pittsburgh to be enjoyable for warm weather travelers. The average high during this season is between 34.8°F (1.6°C) and 26.3°F (-3.2°C). On average, it rains or snows a great amount: 14 to 17 times per month. These times of year are fairly slow with tourists.