Climate and monthly weather forecastHarkness, PA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Harkness, Pennsylvania, is another subzero cold winter month, with an average temperature varying between 17.8°F (-7.9°C) and 29.3°F (-1.5°C). Harkness, Pennsylvania, reaches its lowest average temperatures in January, measuring 29.3°F (-1.5°C) at the peak and 17.8°F (-7.9°C) at the lowest. Weather in January »Weather in February
February, the last month of the winter in Harkness, is a cold month, with an average temperature fluctuating between 32.7°F (0.4°C) and 19.8°F (-6.8°C). Harkness's transition from January to February introduces an average high-temperature of an icy 32.7°F (0.4°C), marking an insignificant variation from the 29.3°F (-1.5°C). Weather in February »Weather in March
March, the first month of the spring in Harkness, is also a wintry month, with an average temperature fluctuating between 41.9°F (5.5°C) and 26.1°F (-3.3°C). March shows a rise in the average high-temperature, moving from February's 32.7°F (0.4°C) to a still icy 41.9°F (5.5°C). Weather in March »Weather in April
April is a fresh spring month in Harkness, Pennsylvania, with an average temperature ranging between min 35.6°F (2°C) and max 54.1°F (12.3°C). Harkness's transition into April is marked by a temperature shift, moving from an icy 41.9°F (5.5°C) in March to a fresh 54.1°F (12.3°C). Weather in April »Weather in May
May, the last month of the spring in Harkness, is an enjoyable month, with an average temperature varying between 67.5°F (19.7°C) and 46.6°F (8.1°C). Harkness in May sees a temperature change, with average high-temperatures moving from a fresh 54.1°F (12.3°C) in April to a refreshing 67.5°F (19.7°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Harkness, Pennsylvania, with temperature in the range of an average low of 52.9°F (11.6°C) and an average high of 75.4°F (24.1°C). June's arrival coincides with a subtle temperature rise, moving from May's refreshing 67.5°F (19.7°C) to a moderately hot 75.4°F (24.1°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Harkness, Pennsylvania, with temperature in the range of an average high of 80.4°F (26.9°C) and an average low of 57.6°F (14.2°C). Harkness's warmest month, July, generally records average temperatures ranging from a high of 80.4°F (26.9°C) to a low of 57.6°F (14.2°C). Weather in July »Weather in August
August, the last month of the summer in Harkness, is also a moderately hot month, with an average temperature ranging between min 55.9°F (13.3°C) and max 77.5°F (25.3°C). The onset of August marks an average high-temperature of a still warm 77.5°F (25.3°C), hardly differing from July's 80.4°F (26.9°C). Weather in August »Weather in September
September, the first month of the autumn in Harkness, is also an agreeable month, with temperature in the range of an average low of 50.2°F (10.1°C) and an average high of 70.7°F (21.5°C). September brings a slight decrease in the average high-temperature, shifting from a moderately hot 77.5°F (25.3°C) in August to a pleasant 70.7°F (21.5°C). Weather in September »Weather in October
October, the same as September, in Harkness, Pennsylvania, is another mild autumn month, with an average temperature varying between 41.9°F (5.5°C) and 57.9°F (14.4°C). The shift from September to October involves a decrease in the average high-temperature, from an agreeable 70.7°F (21.5°C) to a moderate 57.9°F (14.4°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Harkness, Pennsylvania, with an average temperature fluctuating between 45.3°F (7.4°C) and 31.1°F (-0.5°C). In Harkness, the average high-temperature in November decreases from a mild 57.9°F (14.4°C) in October to a chilly 45.3°F (7.4°C). Weather in November »Weather in December
December, the first month of the winter in Harkness, is also a wintry month, with an average temperature varying between 25.5°F (-3.6°C) and 35.2°F (1.8°C). The onset of December results in a decrease in the average high-temperature, receding from a frosty 45.3°F (7.4°C) in November to a wintry 35.2°F (1.8°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Harkness, PA
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (29.3°F).
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure
Harkness, PA
- Average pressure in January:
30.08"Hg - Average pressure in February:
30.05"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:
30.07"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.09"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
Harkness, PA
- Average wind speed in January:
8.7mph - Average wind speed in February:
8.5mph - Average wind speed in March:
8.4mph - Average wind speed in April:
8.3mph - Average wind speed in May:
7mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.3mph - Average wind speed in September:
6mph - Average wind speed in October:
7mph - Average wind speed in November:
7.7mph - Average wind speed in December:
8.3mph
The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity
Harkness, PA
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, June and July (78%).
Average rainfall
Harkness, PA
- Average rainfall in January:
1.38" - Average rainfall in February:
1.54" - Average rainfall in March:
1.65" - Average rainfall in April:
2.36" - Average rainfall in May:
2.44" - Average rainfall in June:
2.32"
The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days
Harkness, PA
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
16.8 days - Average rainfall days in May:
17.6 days - Average rainfall days in June:
16.6 days
- Average rainfall days in July:
17.8 days - Average rainfall days in August:
15.6 days - Average rainfall days in September:
13.1 days - Average rainfall days in October:
14.7 days - Average rainfall days in November:
12.3 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.3 days).
Average snowfall
Harkness, PA
- Average snowfall in January:
4.13" - Average snowfall in February:
5.51" - Average snowfall in March:
3.39" - Average snowfall in April:
1.14" - Average snowfall in May:
0.2" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.51").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Harkness, PA
- Average snowfall days in January:
15.9 days - Average snowfall days in February:
15.8 days - Average snowfall days in March:
11.8 days - Average snowfall days in April:
3.8 days - Average snowfall days in May:
0.5 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:
0.7 days - Average snowfall days in November:
6.3 days - Average snowfall days in December:
12.7 days
The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Harkness, PA
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
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:
3h and 12min - Average sunshine in February:
3h and 12min - Average sunshine in March:
5h and 6min - Average sunshine in April:
7h and 0min - Average sunshine in May:
8h and 6min - Average sunshine in June:
9h and 6min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 36min - Average sunshine in September:
8h and 24min - Average sunshine in October:
4h and 48min - Average sunshine in November:
4h and 36min - Average sunshine in December:
3h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 12min).
Average sunshine days
Harkness, PA
- Average sunshine days in January:
11 days - Average sunshine days in February:
8.8 days - Average sunshine days in March:
9.9 days - Average sunshine days in April:
9.4 days - Average sunshine days in May:
10.4 days - Average sunshine days in June:
11.1 days
- Average sunshine days in July:
11.6 days - Average sunshine days in August:
12.9 days - Average sunshine days in September:
14.4 days - Average sunshine days in October:
12.5 days - Average sunshine days in November:
13.8 days - Average sunshine days in December:
9.4 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is February (8.8 days).
Average UV index
Harkness, 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
Harkness, PA
The months with the most cloud cover are January, February and December (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility
Harkness, PA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).





