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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, the same as December, is an icy winter month in Port Royal, Pennsylvania, with temperature in the range of an average high of 32.9°F (0.5°C) and an average low of 19.9°F (-6.7°C). With an average high-temperature of 32.9°F (0.5°C) and an average low-temperature of 19.9°F (-6.7°C), January is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Port Royal, is another cold month, with an average temperature ranging between max 37°F (2.8°C) and min 21.9°F (-5.6°C). Port Royal registers an average high-temperature of a still wintry 37°F (2.8°C) with the arrival of February, showing minor deviation from the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Port Royal, Pennsylvania, with an average temperature varying between 46.6°F (8.1°C) and 29.3°F (-1.5°C). As Port Royal enters March, the average high-temperature increases from the an icy 37°F (2.8°C) of February to a chilly 46.6°F (8.1°C). Weather in March »
Weather in April
April in Port Royal, Pennsylvania, is a refreshing spring month, with an average temperature varying between 58.6°F (14.8°C) and 39.2°F (4°C). The shift into April brings an increase in the average high-temperature, moving from a chilly 46.6°F (8.1°C) in March to a mild 58.6°F (14.8°C). Weather in April »
Weather in May
May, the last month of the spring in Port Royal, is an agreeable month, with an average temperature varying between 49.3°F (9.6°C) and 70.2°F (21.2°C). May brings a temperature change, with average high-temperatures moving from April's mild 58.6°F (14.8°C) to an agreeable 70.2°F (21.2°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Port Royal, Pennsylvania, with temperature in the range of an average high of 78.1°F (25.6°C) and an average low of 55.8°F (13.2°C). June's arrival brings a slight change in high-temperatures, adjusting from a pleasant 70.2°F (21.2°C) in May to a moderately hot 78.1°F (25.6°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Port Royal, Pennsylvania, with temperature in the range of an average high of 83.5°F (28.6°C) and an average low of 60.8°F (16°C). July is the warmest month, with an average high-temperature of 83.5°F (28.6°C) and an average low-temperature of 60.8°F (16°C). July's heat index is estimated at a tropical 91.4°F (33°C). Weather in July »
Weather in August
August, the last month of the summer in Port Royal, is another warm month, with temperature in the range of an average low of 58.5°F (14.7°C) and an average high of 81.1°F (27.3°C). Port Royal indicates an average high-temperature of a still moderately hot 81.1°F (27.3°C) in August, showing minor variation from July's 83.5°F (28.6°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Port Royal, Pennsylvania, with an average temperature fluctuating between 53.4°F (11.9°C) and 74.1°F (23.4°C). September's arrival signals a moderate reduction in the average high-temperature, easing from 81.1°F (27.3°C) in August to a still warm 74.1°F (23.4°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Port Royal, Pennsylvania, with an average temperature varying between 43.7°F (6.5°C) and 61.5°F (16.4°C). In October, the meteorological conditions alter, with the average high-temperature shifting from a moderately hot 74.1°F (23.4°C) in September to a comfortable 61.5°F (16.4°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Port Royal, Pennsylvania, with an average temperature varying between 48.4°F (9.1°C) and 32.9°F (0.5°C). Port Royal in November demonstrates a small temperature transition, adjusting from an average high of a comfortable 61.5°F (16.4°C) in October to a chilly 48.4°F (9.1°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Port Royal, Pennsylvania, with temperature in the range of an average low of 27.5°F (-2.5°C) and an average high of 39°F (3.9°C). With December's onset, the weather shows a temperature decrease, transitioning from a chilly 48.4°F (9.1°C) in November to an icy 39°F (3.9°C). Weather in December »
Updated: Jul 25, 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 part of the year is the coldest in Port Royal?
Port Royal's January weather, with an average high temperature of 32.9°F (0.5°C) and an average low temperature of 19.9°F (-6.7°C), tends to be the coldest of the year.
What is the driest month?
The months with the least rainfall are January and November Rain falls for 9.2 days and accumulates 1.85" (47mm) of rain.
How much does it rain?
In Port Royal, during the entire year, the rain falls for 162 days and collects up to 28.86" (733mm) of precipitation.
When does it snow?
January through May, October through December are months with snowfall.
What is the snowiest month?
The month with the most snowfall is January, when snow falls for 10.9 days and typically aggregates up to 4.49" (114mm) of snow.
How many days does it snow?
In Port Royal, during the entire year, snow falls for 35.2 days and aggregates up to 16.42" (417mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 4h of sunshine.
When is the lowest UV index?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
What is the most humid month?
February is the most humid month, with an average relative humidity of 82%.
When is Daylight Saving Time (DST)?
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 is the rainiest month?
May is the month with the most rainfall. Rain falls for 19.1 days and accumulates 3.31" (84mm) of precipitation.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
With an average of 15h and 0min of daylight, June has the longest days of the year.
When is the highest UV index?
The month with the highest UV index is June, with an average maximum UV index of 6.
What part of the year is the hottest?
Port Royal's warmest temperatures are experienced in July, with average high temperatures of 83.5°F (28.6°C) and lows of 60.8°F (16°C).
What is the least humid month?
July is the least humid month, with an average relative humidity of 75%.
What month has the most sunshine?
With an average of 10.3h of sunshine, July has the most sunshine of the year.
What is the month with the shortest days?
The month with the shortest days in Port Royal is December, with an average of 9h and 18min of daylight.
Average temperature
Port Royal, PA
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (32.9°F).
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure
Port Royal, PA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.07"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:
29.95"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.1"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
Port Royal, PA
- Average wind speed in January:
7.5mph - Average wind speed in February:
7.3mph - Average wind speed in March:
7.1mph - Average wind speed in April:
7.3mph - Average wind speed in May:
5.8mph - Average wind speed in June:
5.5mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.4mph - Average wind speed in September:
4.8mph - Average wind speed in October:
6mph - Average wind speed in November:
6.4mph - Average wind speed in December:
7mph
The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity
Port Royal, PA
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is July (75%).
Average rainfall
Port Royal, PA
- Average rainfall in January:
1.85" - Average rainfall in February:
1.89" - Average rainfall in March:
2.05" - Average rainfall in April:
2.99" - Average rainfall in May:
3.31" - Average rainfall in June:
2.56"
- Average rainfall in July:
3.03" - Average rainfall in August:
2.64" - Average rainfall in September:
2.13" - Average rainfall in October:
2.4" - Average rainfall in November:
1.85" - Average rainfall in December:
2.17"
The wettest month (with the highest rainfall) is May (3.31").
The driest months (with the least rainfall) are January and November (1.85").
Average rainfall days
Port Royal, PA
- Average rainfall days in January:
9.2 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
11.7 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
19.1 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
18.3 days - Average rainfall days in August:
17 days - Average rainfall days in September:
13.7 days - Average rainfall days in October:
13.1 days - Average rainfall days in November:
9 days - Average rainfall days in December:
10.5 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (8.8 days).
Average snowfall
Port Royal, PA
- Average snowfall in January:
4.49" - Average snowfall in February:
4.13" - Average snowfall in March:
3.11" - Average snowfall in April:
0.31" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is January (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Port Royal, PA
- Average snowfall days in January:
10.9 days - Average snowfall days in February:
9.5 days - Average snowfall days in March:
5.6 days - Average snowfall days in April:
0.8 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:
0.1 days - Average snowfall days in November:
2.1 days - Average snowfall days in December:
6 days
The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Port Royal, 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 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:
9h and 5min - 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 18min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
4h and 1min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 2min - 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 2min - Average sunshine in December:
4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days
Port Royal, PA
- Average sunshine days in January:
15.2 days - Average sunshine days in February:
13.2 days - Average sunshine days in March:
14.9 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
10.4 days - Average sunshine days in June:
11.7 days
- Average sunshine days in July:
11.3 days - Average sunshine days in August:
12.5 days - Average sunshine days in September:
14.1 days - Average sunshine days in October:
16.1 days - Average sunshine days in November:
19.4 days - Average sunshine days in December:
16.6 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (10.4 days).
Average UV index
Port Royal, PA
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Port Royal, PA
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility
Port Royal, PA
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Port Royal, Pennsylvania, USA
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