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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
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Harrison, Pennsylvania, with an average temperature ranging between min 16.2°F (-8.8°C) and max 28°F (-2.2°C). With average temperatures fluctuating between a high of 28°F (-2.2°C) and a low of 16.2°F (-8.8°C), January stands out as the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is a wintry month in Harrison, Pennsylvania, with an average temperature varying between 18.3°F (-7.6°C) and 32°F (0°C). Harrison signifies an average high-temperature of an icy 32°F (0°C) in February, closely mirroring the 28°F (-2.2°C) of January. Weather in February »
Weather in March
March, the first month of the spring in Harrison, is also an icy month, with an average temperature fluctuating between 25.3°F (-3.7°C) and 41.2°F (5.1°C). The onset of March brings a temperature shift, with the average high-temperature moving from a wintry 32°F (0°C) in February to a still icy 41.2°F (5.1°C). Weather in March »
Weather in April
April is a cool spring month in Harrison, Pennsylvania, with an average temperature ranging between min 34.9°F (1.6°C) and max 53.2°F (11.8°C). April's onset is marked by a temperature increase, moving from a cold 41.2°F (5.1°C) in March to a fresh 53.2°F (11.8°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Harrison, Pennsylvania, with an average temperature ranging between max 66.4°F (19.1°C) and min 45.7°F (7.6°C). May sees a temperature increase, moving from a cool 53.2°F (11.8°C) in April to an enjoyable 66.4°F (19.1°C). Weather in May »
Weather in June
June, the first month of the summer in Harrison, is a warm month, with an average temperature ranging between max 74.1°F (23.4°C) and min 52.3°F (11.3°C). In Harrison, the average high-temperature in June slightly increases from a comfortable 66.4°F (19.1°C) in May to a moderately hot 74.1°F (23.4°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Harrison, Pennsylvania, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 56.5°F (13.6°C). July temperatures tend to peak at an average high of 79.3°F (26.3°C) and dip to a low of 56.5°F (13.6°C). Weather in July »
Weather in August
August, the last month of the summer in Harrison, is another warm month, with an average temperature varying between 77°F (25°C) and 54.3°F (12.4°C). The arrival of August coincides with an average high-temperature of a still warm 77°F (25°C), indicating a minimal shift from July's 79.3°F (26.3°C). Weather in August »
Weather in September
September, the first month of the autumn in Harrison, is also an agreeable month, with an average temperature fluctuating between 49.6°F (9.8°C) and 69.8°F (21°C). The arrival of September corresponds with a light shift in temperature, down from a warm 77°F (25°C) in August to a pleasant 69.8°F (21°C). Weather in September »
Weather in October
October, the same as September, in Harrison, Pennsylvania, is a moderate autumn month, with an average temperature ranging between min 41.4°F (5.2°C) and max 57°F (13.9°C). The average high-temperature decreases in October, shifting from a pleasant 69.8°F (21°C) in September to a refreshing 57°F (13.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Harrison, is another chilly month, with an average temperature fluctuating between 43.7°F (6.5°C) and 30.4°F (-0.9°C). The onset of November coincides with a reduction in the average high-temperature, falling from a refreshing 57°F (13.9°C) in October to a frosty 43.7°F (6.5°C). Weather in November »
Weather in December
December, the first month of the winter in Harrison, is also a wintry month, with an average temperature varying between 24.1°F (-4.4°C) and 34.2°F (1.2°C). The beginning of December marks a decrease in the average high-temperature, transitioning from a chilly 43.7°F (6.5°C) in November to a cold 34.2°F (1.2°C). Weather in December »
Updated: Jun 10, 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 month is the coldest in Harrison?
Harrison reaches its average lowest temperatures in January, measuring 28°F (-2.2°C) at the peak and 16.2°F (-8.8°C) at the lowest.
How many days does it rain?
In Harrison, during the entire year, the rain falls for 174 days and collects up to 30.83" (783mm) of precipitation.
When does it snow?
Months with snowfall in Harrison are January through May, October through December.
How many days does it snow?
In Harrison, during the entire year, snow falls for 86.8 days and aggregates up to 41.54" (1055mm) of snow.
What are the months with the least sunshine?
The months with the least sunshine are January and December, with an average of 2.9h of sunshine.
What are the months with the lowest UV index?
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
What is the most humid month?
The most humid month is February, with an average relative humidity of 87%.
What is the snowiest month?
February is the month with the most snowfall. Snow falls for 18.5 days and accumulates 10.2" (259mm) 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 wettest month?
The month with the most rainfall is April, when the rain falls for 17.3 days and typically aggregates up to 3.43" (87mm) of precipitation.
When is the highest UV index?
May through August, with an average maximum UV index of 5, are months with the highest UV index.
What are the least humid months?
The months with the lowest humidity are June and July, with an average relative humidity of 78%.
When it does not snow?
In Harrison, snow does not fall in June through September.
When are the longest days?
With an average of 15h and 12min of daylight, June has the longest days of the year.
What month is the hottest?
Harrison's temperatures tend to reach their peak averages in July, with a high of 79.3°F (26.3°C) and a low of 56.5°F (13.6°C).
What month has the most sunshine?
The month with the most sunshine is July, with an average of 9.8h of sunshine.
What is the driest month?
September is the month with the least rainfall. Rain falls for 14.2 days and accumulates 2.17" (55mm) of precipitation.
What is the month with the shortest days in Harrison?
The month with the shortest days is December, with an average of 9h and 12min of daylight.
Average temperature
Harrison, PA
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28°F).
The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure
Harrison, PA
- Average pressure in January:
30.08"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"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Harrison, PA
- Average wind speed in January:
9.1mph - Average wind speed in February:
8.8mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8.5mph - Average wind speed in May:
7.1mph - Average wind speed in June:
6.7mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6mph - Average wind speed in October:
7.3mph - Average wind speed in November:
7.9mph - Average wind speed in December:
8.5mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity
Harrison, PA
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are June and July (78%).
Average rainfall
Harrison, PA
- Average rainfall in January:
2.24" - Average rainfall in February:
2.44" - Average rainfall in March:
2.32" - Average rainfall in April:
3.43" - Average rainfall in May:
2.76" - Average rainfall in June:
2.6"
The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days
Harrison, PA
- Average rainfall days in January:
9.1 days - Average rainfall days in February:
8.9 days - Average rainfall days in March:
13.7 days - Average rainfall days in April:
17.3 days - Average rainfall days in May:
18.9 days - Average rainfall days in June:
17.4 days
- Average rainfall days in July:
18.6 days - Average rainfall days in August:
16.6 days - Average rainfall days in September:
14.2 days - Average rainfall days in October:
16.1 days - Average rainfall days in November:
11.4 days - Average rainfall days in December:
11.8 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (8.9 days).
Average snowfall
Harrison, PA
- Average snowfall in January:
8.07" - Average snowfall in February:
10.2" - Average snowfall in March:
5.08" - Average snowfall in April:
2.95" - Average snowfall in May:
0.47" - Average snowfall in June:
0"
The month with the highest snowfall is February (10.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Harrison, PA
- Average snowfall days in January:
20.2 days - Average snowfall days in February:
18.5 days - Average snowfall days in March:
12.5 days - Average snowfall days in April:
5.5 days - Average snowfall days in May:
0.7 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:
1.6 days - Average snowfall days in November:
9.8 days - Average snowfall days in December:
18 days
The month with the highest number of snowfall days is January (20.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Harrison, PA
- Average daylight in January:
9h and 3min - 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 4min - 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 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
2h and 5min - Average sunshine in February:
3h and 1min - Average sunshine in March:
5h and 3min - Average sunshine in April:
7h and 0min - Average sunshine in May:
8h and 1min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 4min - Average sunshine in September:
8h and 2min - Average sunshine in October:
4h and 4min - Average sunshine in November:
4h and 2min - Average sunshine in December:
2h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January and December (Average sunshine: 2h and 54min).
Average sunshine days
Harrison, PA
- Average sunshine days in January:
7.3 days - Average sunshine days in February:
5.9 days - Average sunshine days in March:
8.8 days - Average sunshine days in April:
9 days - Average sunshine days in May:
10 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
10.2 days - Average sunshine days in August:
12.2 days - Average sunshine days in September:
13.5 days - Average sunshine days in October:
12 days - Average sunshine days in November:
11.5 days - Average sunshine days in December:
7 days
The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (5.9 days).
Average UV index
Harrison, PA
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Harrison, PA
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 41).
Average visibility
Harrison, PA
The months with the highest visibility are March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February and September (4mi).