Climate and monthly weather forecastPlainfield, PA
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Plainfield, Pennsylvania, with an average temperature ranging between min 21.9°F (-5.6°C) and max 34.7°F (1.5°C). During the coldest month, January, temperatures average a high of 34.7°F (1.5°C) and a low of 21.9°F (-5.6°C). Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Plainfield, Pennsylvania, with an average temperature varying between 38.1°F (3.4°C) and 23.7°F (-4.6°C). The advent of February brings an average high-temperature of a still icy 38.1°F (3.4°C), exhibiting minor difference from the previous month. Weather in February »Weather in March
March, the first month of the spring in Plainfield, is a chilly month, with an average temperature ranging between min 31.5°F (-0.3°C) and max 47.8°F (8.8°C). March's arrival brings a change in high-temperatures, moving from a cold 38.1°F (3.4°C) in February to a frosty 47.8°F (8.8°C). Weather in March »Weather in April
April is a refreshing spring month in Plainfield, Pennsylvania, with an average temperature varying between 60.3°F (15.7°C) and 41.5°F (5.3°C). In April, the average high-temperature increases from a frosty 47.8°F (8.8°C) in March to a refreshing 60.3°F (15.7°C). Weather in April »Weather in May
May, the last month of the spring in Plainfield, is a pleasant month, with temperature in the range of an average high of 70.7°F (21.5°C) and an average low of 51.4°F (10.8°C). The shift into May is marked by a rise in the average high-temperature, moving from April's moderate 60.3°F (15.7°C) to a pleasant 70.7°F (21.5°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Plainfield, Pennsylvania, with an average temperature varying between 58.1°F (14.5°C) and 78.4°F (25.8°C). The shift into June is accompanied by a modest temperature increase, with the average high-temperature edging up from an agreeable 70.7°F (21.5°C) in May to a moderately hot 78.4°F (25.8°C). Weather in June »Weather in July
July, like June, in Plainfield, Pennsylvania, is a moderately hot summer month, with an average temperature fluctuating between 62.8°F (17.1°C) and 83.8°F (28.8°C). Plainfield's July weather reaches an average high of 83.8°F (28.8°C) and an average low of 62.8°F (17.1°C), making it the warmest month. July's mean heat index is evaluated at a tropical 91.4°F (33°C). Weather in July »Weather in August
August, the last month of the summer in Plainfield, is also a moderately hot month, with an average temperature varying between 81.3°F (27.4°C) and 61.3°F (16.3°C). August's arrival shows an average high-temperature of a still warm 81.3°F (27.4°C), hardly different from the previous month. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Plainfield, Pennsylvania, with temperature in the range of an average low of 55.4°F (13°C) and an average high of 74.3°F (23.5°C). In Plainfield, the average high-temperature in September gently drops from 81.3°F (27.4°C) in August to a still moderately hot 74.3°F (23.5°C). Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Plainfield, Pennsylvania, with an average temperature ranging between min 45.5°F (7.5°C) and max 62.6°F (17°C). In Plainfield, the average high-temperature in October decreases from a moderately hot 74.3°F (23.5°C) in September to a comfortable 62.6°F (17°C). Weather in October »Weather in November
November, the last month of the autumn in Plainfield, is another chilly month, with an average temperature ranging between min 34.7°F (1.5°C) and max 49.8°F (9.9°C). In the transition to November, Plainfield observes a drop in the average high-temperature, moving from a refreshing 62.6°F (17°C) in October to a chilly 49.8°F (9.9°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Plainfield, Pennsylvania, with temperature in the range of an average low of 28.9°F (-1.7°C) and an average high of 40.8°F (4.9°C). December's arrival comes with a decrease in the average high-temperature, moving from a frosty 49.8°F (9.9°C) in November to an icy 40.8°F (4.9°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Plainfield, PA
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.7°F).
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure
Plainfield, 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:
29.97"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:
30.14"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Plainfield, PA
- Average wind speed in January:
7.9mph - Average wind speed in February:
7.8mph - Average wind speed in March:
7.8mph - Average wind speed in April:
7.8mph - Average wind speed in May:
6.1mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.7mph - Average wind speed in September:
5.2mph - Average wind speed in October:
6.5mph - Average wind speed in November:
6.8mph - Average wind speed in December:
7.4mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity
Plainfield, PA
The months with the highest relative humidity are February, May and October (80%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall
Plainfield, PA
- Average rainfall in January:
2.01" - Average rainfall in February:
2.05" - Average rainfall in March:
2.2" - Average rainfall in April:
2.52" - Average rainfall in May:
3.11" - Average rainfall in June:
2.09"
- Average rainfall in July:
2.68" - Average rainfall in August:
2.52" - Average rainfall in September:
1.97" - Average rainfall in October:
2.64" - Average rainfall in November:
2.13" - Average rainfall in December:
2.13"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days
Plainfield, PA
- Average rainfall days in January:
7.9 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
13.8 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
17.9 days - Average rainfall days in June:
15.4 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
15.8 days - Average rainfall days in September:
13 days - Average rainfall days in October:
12.4 days - Average rainfall days in November:
9.1 days - Average rainfall days in December:
10.8 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (7.9 days).
Average snowfall
Plainfield, PA
- Average snowfall in January:
4.53" - Average snowfall in February:
3.78" - Average snowfall in March:
3.86" - Average snowfall in April:
0.28" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is January (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Plainfield, PA
- Average snowfall days in January:
8.7 days - Average snowfall days in February:
7.9 days - Average snowfall days in March:
5.6 days - Average snowfall days in April:
0.8 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:
0.1 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
4.9 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Plainfield, PA
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
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 24min).
- Average sunshine in January:
4h and 36min - Average sunshine in February:
4h and 24min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 24min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days
Plainfield, PA
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
13.8 days - Average sunshine days in March:
12.8 days - Average sunshine days in April:
12 days - Average sunshine days in May:
11 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
13.9 days - Average sunshine days in September:
15 days - Average sunshine days in October:
16.1 days - Average sunshine days in November:
18.7 days - Average sunshine days in December:
16.1 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (11 days).
Average UV index
Plainfield, PA
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Plainfield, PA
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Plainfield, PA
The months with the highest visibility are April, June, July, August, November and December (6mi).
The months with the lowest visibility are January, February, March, May, September and October (5mi).





