The best times to visit Williamsport for ideal weather are

April 30th to October 7th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Williamsport Travel Info

Weather in Williamsport

Temperature

Average temperatures in Williamsport vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 22nd percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Williamsport, 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 88.7°F (31.5°C) with temperatures rarely dropping below 62.8°F (17.1°C) at night.

Williamsport Temperatures (Fahrenheit)

Key
High
Average
Low

Williamsport Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

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.

Williamsport Perceived Temperature (F)

Key
High
Average
Low

Williamsport Perceived Temperature (C)

Key
High
Average
Low

 

Average Williamsport 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.

Show Fahrenheit

MonthAvg. High (°F)Avg. Mean (°F)Avg. Low (°F)
Jan3727.318.2
Feb38.527.717.7
Mar51.938.928.2
Apr65.651.138
May76.862.248.9
Jun83.369.958
Jul87.273.661.3
Aug83.970.759.4
Sep78.364.553.7
Oct66.453.342.6
Nov53.442.232.5
Dec4334.326.1

Show Celsius

MonthAvg. High (°C)Avg. Mean (°C)Avg. Low (°C)
Jan2.8-2.6-7.7
Feb3.6-2.4-7.9
Mar11.13.8-2.1
Apr18.710.63.3
May24.916.89.4
Jun28.521.114.4
Jul30.723.116.3
Aug28.821.515.2
Sep25.718.112.1
Oct19.111.85.9
Nov11.95.70.3
Dec6.11.3-3.3

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Williamsport are November, January, and then March. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late January. For example, on the week of January 22nd there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid June with an average of 3 days of significant precipitation the week of June 11th.

When can you find snow in Williamsport? Weather stations report large amounts of snow likely to be deepest around February, especially close to early to mid March. The best time to ski (if at all) in Williamsport is often around around December 17th when fresh powder is deepest. 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 Williamsport.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Williamsport (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

MonthDaily Chance of RainAverage Snow Depth (in)Total Precipitation (in)
Jan18%2.72.7
Feb21%4.72.3
Mar21%3.33.3
Apr28%23.8
May28%04
Jun27%03.9
Jul28%04.2
Aug24%05
Sep23%04.6
Oct23%1.24.1
Nov17%2.12.8
Dec26%3.14.5

Show Centimeters

MonthDaily Chance of RainAverage Snow Depth (cm)Total Precipitation (cm)
Jan186.96.9
Feb2111.95.8
Mar218.48.4
Apr285.19.7
May28010.2
Jun2709.9
Jul28010.7
Aug24012.7
Sep23011.7
Oct23310.4
Nov175.37.1
Dec267.911.4

 

Humidity and Wind

Williamsport has some slightly muggy months, with moderately humid months on the other side of the year. The least humid month is April (45.1% relative humidity), and the most humid month is September (65.1%).

Wind in Williamsport is usually calm. The windiest month is April, followed by February and March. April’s average wind speed of around 6.3 knots (7.3 MPH or 11.7 KPH) is considered “a 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 15.4 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Williamsport.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

MonthAvg. WindAvg. Wind FeelSustained High WindHigh Wind Feel
Jan5.7Light breeze12.8Significant breeze
Feb6.2Light breeze13.7Significant breeze
Mar6.1Light breeze13.4Significant breeze
Apr6.3Light breeze14.5Significant breeze
May4.7Light breeze12.2Significant breeze
Jun4.4Light breeze11.7Significant breeze
Jul3.8Barely noticeable11.4Significant breeze
Aug3.4Barely noticeable9.8Gentle breeze
Sep3.6Barely noticeable10.1Significant breeze
Oct4.3Light breeze11.2Significant breeze
Nov4.9Light breeze11.8Significant breeze
Dec5.7Light breeze12.6Significant breeze

Show Relative Humidity by Month

MonthAvg. Relative Humidity
Jan54.1%
Feb51%
Mar45.2%
Apr45.1%
May53.8%
Jun59.2%
Jul58.3%
Aug62.7%
Sep65.1%
Oct62.5%
Nov56.1%
Dec61.7%

 

Is it Safe to Travel to Williamsport?

Our best data indicates this area is generally safe. As of Oct 07, 2019 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. This advisory was last updated on Sep 23, 2019.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Williamsport, PA, US is July, followed by August 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 Williamsport in November. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 31.4 in November means 31.4% of the tourists vs. July.

 

 

Overall Williamsport Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 82.7°F (28.2°C) and 41.6°F (5.3°C) with far warmer temperatures in the later months. Rain is somewhat common with 6 to 9 days of significant precipitation per month. Spring is the second 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 comfortable. These months see the most precipitation with 7 to 9 days of precipitation per month. June – August is the busiest season for tourism in Williamsport, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 83.1°F (28.4°C) and 47.6°F (8.7°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 5 to 7 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is far too cold this time of year in Williamsport to be enjoyable for warm weather travelers. The average high during this season is between 43.5°F (6.4°C) and 33.7°F (0.9°C). On average, it rains or snows a fair amount: 6 to 8 times per month. These times of year are fairly slow with tourists.

 

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