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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 a wintry winter month in Portland, Pennsylvania, with an average temperature ranging between max 32.9°F (0.5°C) and min 20.3°F (-6.5°C). Portland's coldest weather arrives in January, when temperatures average a high of 32.9°F (0.5°C) and a low of 20.3°F (-6.5°C). Weather in January »
Weather in February
The last month of the winter, February, is also an icy month in Portland, Pennsylvania, with temperature in the range of an average high of 36.3°F (2.4°C) and an average low of 21.7°F (-5.7°C). The transition into February notes an average high-temperature of a still icy 36.3°F (2.4°C), revealing a mild distinction from the 32.9°F (0.5°C) in January. Weather in February »
Weather in March
March, the first month of the spring in Portland, is a chilly month, with temperature in the range of an average high of 44.2°F (6.8°C) and an average low of 28.8°F (-1.8°C). March introduces a minor temperature shift, with average high-temperatures adjusting from February's icy 36.3°F (2.4°C) to a frosty 44.2°F (6.8°C). Weather in March »
Weather in April
April is a refreshing spring month in Portland, Pennsylvania, with temperature in the range of an average high of 56.8°F (13.8°C) and an average low of 39°F (3.9°C). Portland's transition into April brings a rise in the average high-temperature, moving from a chilly 44.2°F (6.8°C) in March to a mild 56.8°F (13.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Portland, Pennsylvania, with an average temperature varying between 68.5°F (20.3°C) and 49.1°F (9.5°C). As May arrives, Portland's weather shows an increase in high-temperatures, moving from April's moderate 56.8°F (13.8°C) to an agreeable 68.5°F (20.3°C). Weather in May »
Weather in June
June, the first month of the summer in Portland, is a warm month, with an average temperature ranging between min 55.9°F (13.3°C) and max 76.3°F (24.6°C). With the onset of June, Portland's average high-temperature experiences a slight rise, moving from May's agreeable 68.5°F (20.3°C) to a moderately hot 76.3°F (24.6°C). Weather in June »
Weather in July
July, like June, in Portland, Pennsylvania, is another warm summer month, with temperature in the range of an average high of 82.4°F (28°C) and an average low of 61.9°F (16.6°C). In Portland, temperatures reach their average annual highs in July, measuring 82.4°F (28°C) and a minimum average of 61.9°F (16.6°C). For July, the heat index is estimated at a hot 89.6°F (32°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Portland, Pennsylvania, with an average temperature varying between 59.7°F (15.4°C) and 80.1°F (26.7°C). As Portland welcomes August, the average high-temperature stabilizes at a still moderately hot 80.1°F (26.7°C), showing little deviation from July's 82.4°F (28°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Portland, Pennsylvania, with an average temperature ranging between min 53.4°F (11.9°C) and max 73.8°F (23.2°C). Transition into September subtly marks a drop in the average high-temperature, moderately moving from 80.1°F (26.7°C) in August to a still warm 73.8°F (23.2°C). Weather in September »
Weather in October
October, the same as September, in Portland, Pennsylvania, is another mild autumn month, with an average temperature ranging between max 60.6°F (15.9°C) and min 44.6°F (7°C). October's onset brings a slight change in high-temperatures, falling from a warm 73.8°F (23.2°C) in September to a moderate 60.6°F (15.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Portland, is also a frosty month, with an average temperature fluctuating between 33.6°F (0.9°C) and 48.4°F (9.1°C). Portland's progression into November involves a drop in the average high-temperature, receding from a refreshing 60.6°F (15.9°C) in October to a frosty 48.4°F (9.1°C). Weather in November »
Weather in December
December, the first month of the winter in Portland, is also a wintry month, with an average temperature varying between 27.3°F (-2.6°C) and 38.5°F (3.6°C). December implies a gentle temperature shift, with average high-temperatures reducing from November's chilly 48.4°F (9.1°C) to an icy 38.5°F (3.6°C). 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 part of the year is the coldest?
January is the coldest month, with an average high-temperature of 32.9°F (0.5°C) and an average low-temperature of 20.3°F (-6.5°C).
How many days does it rain?
Throughout the year, in Portland, there are 135.7 rainfall days, and 23.74" (603mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through May, October through December.
How much does it snow?
In Portland, during the entire year, snow falls for 33.7 days and aggregates up to 16.65" (423mm) of snow.
What are the most humid months?
The months with the highest humidity are February and December, with an average relative humidity of 82%.
What is the month with the least sunshine?
With an average of 4.2h of sunshine, February has the least sunshine of the year.
What is the snowiest month?
March is the month with the most snowfall. Snow falls for 7.1 days and accumulates 3.82" (97mm) of snow.
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 least humid month?
April is the least humid month, with an average relative humidity of 76%.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
With an average of 15h and 6min of daylight, June has the longest days of the year.
What is the month with the highest UV index?
With an average maximum UV index of 6, June is the month with the highest UV index in Portland.
What time of the year is the hottest?
Portland's warmest month, July, generally records average temperatures ranging from a high of 82.4°F (28°C) to a low of 61.9°F (16.6°C).
What is the rainiest month?
The month with the most rainfall is July, when the rain falls for 15.3 days and typically aggregates up to 2.48" (63mm) of precipitation.
What month has the most sunshine?
With an average of 10.1h of sunshine, July has the most sunshine of the year.
What is the driest month in Portland?
September is the month with the least rainfall. Rain falls for 10.1 days and accumulates 1.22" (31mm) of precipitation.
What is the month with the shortest days in Portland?
December has the shortest days of the year in Portland, with an average of 9h and 18min of daylight.
What is the month with the lowest UV index in Portland?
With an average maximum UV index of 1, December is the month with the lowest UV index.
Average temperature
Portland, PA
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32.9°F).
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure
Portland, PA
- Average pressure in January:
30.07"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30.06"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:
29.96"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Portland, PA
- Average wind speed in January:
7.8mph - Average wind speed in February:
7.8mph - Average wind speed in March:
7.9mph - Average wind speed in April:
7.6mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.1mph - Average wind speed in August:
4.9mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.5mph - Average wind speed in November:
6.8mph - Average wind speed in December:
7.2mph
The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity
Portland, PA
The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall
Portland, PA
- Average rainfall in January:
1.57" - Average rainfall in February:
1.46" - Average rainfall in March:
1.97" - Average rainfall in April:
2.32" - Average rainfall in May:
2.32" - Average rainfall in June:
2.09"
- Average rainfall in July:
2.48" - Average rainfall in August:
2.17" - Average rainfall in September:
1.22" - Average rainfall in October:
2.2" - Average rainfall in November:
1.81" - Average rainfall in December:
2.13"
The wettest month (with the highest rainfall) is July (2.48").
The driest month (with the least rainfall) is September (1.22").
Average rainfall days
Portland, PA
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
6.5 days - Average rainfall days in March:
10.7 days - Average rainfall days in April:
14.2 days - Average rainfall days in May:
15.5 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
14.1 days - Average rainfall days in September:
10.1 days - Average rainfall days in October:
11.9 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
9.3 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (5.8 days).
Average snowfall
Portland, PA
- Average snowfall in January:
3.62" - Average snowfall in February:
3.7" - Average snowfall in March:
3.82" - Average snowfall in April:
0.28" - Average snowfall in May:
0.47" - Average snowfall in June:
0"
The month with the highest snowfall is March (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Portland, PA
- Average snowfall days in January:
8.2 days - Average snowfall days in February:
8.5 days - Average snowfall days in March:
7.1 days - Average snowfall days in April:
1.8 days - Average snowfall days in May:
0.3 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:
1.7 days - Average snowfall days in December:
5.7 days
The month with the highest number of snowfall days is February (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Portland, 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:
4h and 4min - Average sunshine in February:
4h and 1min - Average sunshine in March:
5h and 5min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 1min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 4min - Average sunshine in September:
8h and 2min - Average sunshine in October:
5h and 2min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days
Portland, PA
- Average sunshine days in January:
19.1 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
15.4 days - Average sunshine days in April:
13.6 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
14 days
- Average sunshine days in July:
13.3 days - Average sunshine days in August:
14.9 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
17 days - Average sunshine days in November:
19.2 days - Average sunshine days in December:
17.7 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is July (13.3 days).
Average UV index
Portland, PA
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Portland, PA
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility
Portland, 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).
Portland, Pennsylvania, USA
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