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Contents
- 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
Weather in January
January, like December, is a freezing cold winter month in South Williamsport, Pennsylvania, with an average temperature ranging between min 18.9°F (-7.3°C) and max 30.6°F (-0.8°C). January, with an average high of 30.6°F (-0.8°C) and a low of 18.9°F (-7.3°C), signifies the coldest month of the year. Weather in January »
Weather in February
The last month of the winter, February, is a cold month in South Williamsport, Pennsylvania, with temperature in the range of an average low of 20.7°F (-6.3°C) and an average high of 34.5°F (1.4°C). South Williamsport starts February with an average high-temperature of a cold 34.5°F (1.4°C), hinting at a minimal fluctuation from January. Weather in February »
Weather in March
March, the first month of the spring in South Williamsport, is a chilly month, with an average temperature ranging between max 44.2°F (6.8°C) and min 27.7°F (-2.4°C). The start of March brings a rise in the average high-temperature, moving from a wintry 34.5°F (1.4°C) in February to a frosty 44.2°F (6.8°C). Weather in March »
Weather in April
April in South Williamsport, Pennsylvania, is a mild spring month, with an average temperature fluctuating between 37.8°F (3.2°C) and 56.5°F (13.6°C). The onset of April marks an increase in the average high-temperature, moving from a chilly 44.2°F (6.8°C) in March to a moderate 56.5°F (13.6°C). Weather in April »
Weather in May
May, the last month of the spring in South Williamsport, is an agreeable month, with an average temperature fluctuating between 68.4°F (20.2°C) and 48°F (8.9°C). The transition to May introduces an increase in the average high-temperature, shifting from a refreshing 56.5°F (13.6°C) in April to a pleasant 68.4°F (20.2°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in South Williamsport, Pennsylvania, with an average temperature varying between 54.7°F (12.6°C) and 76.1°F (24.5°C). The embrace of June brings a minor uplift in the average high-temperature, shifting from an agreeable 68.4°F (20.2°C) in May to a moderately hot 76.1°F (24.5°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in South Williamsport, Pennsylvania, with an average temperature ranging between min 59.2°F (15.1°C) and max 81.7°F (27.6°C). In South Williamsport, temperatures reach their average annual highs in July, measuring 81.7°F (27.6°C) and a minimum average of 59.2°F (15.1°C). The heat index value during July is appraised at a hot 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in South Williamsport, Pennsylvania, with an average temperature fluctuating between 57.2°F (14°C) and 79.2°F (26.2°C). The transition into August marks the average high-temperature at a still moderately hot 79.2°F (26.2°C), differing minimally from July's 81.7°F (27.6°C). Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in South Williamsport, Pennsylvania, with an average temperature varying between 51.4°F (10.8°C) and 72.1°F (22.3°C). The start of September involves a subtle temperature drop, shifting from a warm 79.2°F (26.2°C) in August to an agreeable 72.1°F (22.3°C). Weather in September »
Weather in October
October, the same as September, in South Williamsport, Pennsylvania, is another mild autumn month, with an average temperature fluctuating between 42.6°F (5.9°C) and 59.4°F (15.2°C). South Williamsport's weather changes with the onset of October, slightly falling from an agreeable 72.1°F (22.3°C) in September to a mild 59.4°F (15.2°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in South Williamsport, Pennsylvania, with an average temperature fluctuating between 32.4°F (0.2°C) and 46.2°F (7.9°C). As South Williamsport, Pennsylvania, enters November, the average high-temperature decreases from the a moderate 59.4°F (15.2°C) of October to a frosty 46.2°F (7.9°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in South Williamsport, Pennsylvania, with an average temperature varying between 36.7°F (2.6°C) and 26.6°F (-3°C). Setting in of December comes with a decrease in the average high-temperature, moving from a chilly 46.2°F (7.9°C) in November to a cold 36.7°F (2.6°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in South Williamsport?
South Williamsport's January weather, with an average high temperature of 30.6°F (-0.8°C) and an average low temperature of 18.9°F (-7.3°C), tends to be the coldest of the year.
How much does it rain in South Williamsport?
In South Williamsport, during the entire year, the rain falls for 145.2 days and collects up to 16.57" (421mm) of precipitation.
When does it snow in South Williamsport?
Months with snowfall in South Williamsport are January through April, October through December.
How many days does it snow in South Williamsport?
Throughout the year, in South Williamsport, there are 39.1 snowfall days, and 7.56" (192mm) of snow is accumulated.
What are the months with the least sunshine in South Williamsport?
The months with the least sunshine in South Williamsport, Pennsylvania, are January and February, with an average of 3.7h of sunshine.
What is the month with the lowest UV index in South Williamsport?
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the most humid month in South Williamsport?
The most humid month in South Williamsport is February, with an average relative humidity of 84%.
When does it snow the most in South Williamsport?
February is the month with the most snowfall in South Williamsport. Snow falls for 10.1 days and accumulates 2.28" (58mm) of snow.
When is Daylight Saving Time (DST) in South Williamsport?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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 are the least humid months in South Williamsport?
April and July, with an average relative humidity of 77%, are the least humid months in South Williamsport, Pennsylvania.
What is the wettest month in South Williamsport?
April is the month with the most rainfall. Rain falls for 15 days and accumulates 1.93" (49mm) of precipitation.
When it does not snow in South Williamsport?
May through September are months without snowfall in South Williamsport.
When are the longest days in South Williamsport?
With an average of 15h and 6min of daylight, June has the longest days of the year in South Williamsport, Pennsylvania.
What is the warmest month in South Williamsport?
South Williamsport's July weather reaches an average high of 81.7°F (27.6°C) and an average low of 59.2°F (15.1°C), making it the warmest month.
What month has the most sunshine in South Williamsport?
July has the most sunshine of the year, with an average of 10.1h of sunshine.
When is the highest UV index in South Williamsport?
The month with the highest UV index in South Williamsport, Pennsylvania, is July, with an average maximum UV index of 6.
What is the driest month in South Williamsport?
November is the month with the least rainfall in South Williamsport, Pennsylvania. Rain falls for 8.6 days and accumulates 0.94" (24mm) of precipitation.
What is the month with the shortest days in South Williamsport?
The month with the shortest days in South Williamsport is December, with an average of 9h and 18min of daylight.
Average temperature
South Williamsport, PA
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (30.6°F).
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure
South Williamsport, PA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.07"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
South Williamsport, PA
- Average wind speed in January:
7.5mph - Average wind speed in February:
7.3mph - Average wind speed in March:
7.5mph - Average wind speed in April:
7.5mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.3mph - Average wind speed in October:
6.3mph - Average wind speed in November:
6.7mph - Average wind speed in December:
7mph
The windiest months (with the highest average wind speed) are January, March and April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity
South Williamsport, PA
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall
South Williamsport, PA
- Average rainfall in January:
0.98" - Average rainfall in February:
0.98" - Average rainfall in March:
1.1" - Average rainfall in April:
1.93" - Average rainfall in May:
1.85" - Average rainfall in June:
1.57"
The wettest month (with the highest rainfall) is April (1.93").
The driest month (with the least rainfall) is November (0.94").
Average rainfall days
South Williamsport, PA
- Average rainfall days in January:
8.4 days - Average rainfall days in February:
7.5 days - Average rainfall days in March:
11 days - Average rainfall days in April:
15 days - Average rainfall days in May:
16.6 days - Average rainfall days in June:
14.7 days
- Average rainfall days in July:
15.8 days - Average rainfall days in August:
14 days - Average rainfall days in September:
11.2 days - Average rainfall days in October:
11.8 days - Average rainfall days in November:
8.6 days - Average rainfall days in December:
10.6 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (7.5 days).
Average snowfall
South Williamsport, PA
The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
South Williamsport, PA
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
10.1 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
0.9 days - Average snowfall days in May:
0.1 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:
0.3 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
8.1 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
South Williamsport, 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 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
3h and 4min - Average sunshine in February:
3h and 4min - Average sunshine in March:
5h and 5min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 1min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).
Average sunshine days
South Williamsport, PA
- Average sunshine days in January:
14.4 days - Average sunshine days in February:
13.8 days - Average sunshine days in March:
16.2 days - Average sunshine days in April:
12.9 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
13 days
- Average sunshine days in July:
12.9 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
16.8 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
18.7 days - Average sunshine days in December:
15.5 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (11.8 days).
Average UV index
South Williamsport, PA
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
South Williamsport, PA
The months with the most cloud cover are January and February (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility
South Williamsport, PA
The month with the highest visibility is April (6mi).
The month with the lowest visibility is September (4mi).
South Williamsport, Pennsylvania, USA
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