Climate and monthly weather forecastWynnefield, PA
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Wynnefield, Pennsylvania, with an average temperature varying between 25°F (-3.9°C) and 36.7°F (2.6°C). Wynnefield, Pennsylvania, notes the coldest temperatures in January, with a high average of 36.7°F (2.6°C) and a low of 25°F (-3.9°C). Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Wynnefield, Pennsylvania, with an average temperature ranging between min 27°F (-2.8°C) and max 40.3°F (4.6°C). Wynnefield registers an average high-temperature of a still cold 40.3°F (4.6°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 chilly month in Wynnefield, Pennsylvania, with an average temperature varying between 49.1°F (9.5°C) and 34.3°F (1.3°C). Observing a minor shift, the average high-temperature during March adjusts from February's icy 40.3°F (4.6°C) to a frosty 49.1°F (9.5°C). Weather in March »Weather in April
April is a refreshing spring month in Wynnefield, Pennsylvania, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 61.2°F (16.2°C). In Wynnefield, stepping into April brings a temperature increase, moving up from March's frosty 49.1°F (9.5°C) to a refreshing 61.2°F (16.2°C). Weather in April »Weather in May
May, the last month of the spring in Wynnefield, is an agreeable month, with an average temperature fluctuating between 54.3°F (12.4°C) and 71.8°F (22.1°C). With the onset of May, Wynnefield sees a temperature rise, with the average high-temperature moving from April's enjoyable 61.2°F (16.2°C) to an agreeable 71.8°F (22.1°C). Weather in May »Weather in June
June, the first month of the summer in Wynnefield, is a moderately hot month, with an average temperature fluctuating between 79.9°F (26.6°C) and 62.6°F (17°C). A slight uplift of average high-temperatures is noted in June, with temperatures adjusting from a pleasant 71.8°F (22.1°C) in May to a moderately hot 79.9°F (26.6°C). Weather in June »Weather in July
July, like June, in Wynnefield, Pennsylvania, is another warm summer month, with an average temperature varying between 68.9°F (20.5°C) and 85.8°F (29.9°C). The warmest time of the year is July, with temperatures averaging a high of 85.8°F (29.9°C) and a low of 68.9°F (20.5°C). In July, the heat index is calculated to be a very hot 95°F (35°C). Weather in July »Weather in August
August, the last month of the summer in Wynnefield, is another warm month, with an average temperature ranging between max 83.7°F (28.7°C) and min 67.5°F (19.7°C). The initiation of August records an average high-temperature of a still moderately hot 83.7°F (28.7°C), displaying a near consistency with the previous month. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Wynnefield, Pennsylvania, with an average temperature fluctuating between 59.9°F (15.5°C) and 76.5°F (24.7°C). September's arrival comes with a mild decrease in the average high-temperature, moving subtly from a warm 83.7°F (28.7°C) in August to a still moderately hot 76.5°F (24.7°C). Weather in September »Weather in October
October, like September, in Wynnefield, Pennsylvania, is another comfortable autumn month, with temperature in the range of an average high of 64.2°F (17.9°C) and an average low of 50°F (10°C). As Wynnefield enters October, the average high-temperature decreases from the a warm 76.5°F (24.7°C) of September to an enjoyable 64.2°F (17.9°C). Weather in October »Weather in November
The last month of the autumn, November, is also a fresh month in Wynnefield, Pennsylvania, with an average temperature ranging between min 38.3°F (3.5°C) and max 52°F (11.1°C). A change in temperatures is noted as October gives way to November, with average highs reducing from an enjoyable 64.2°F (17.9°C) to a cool 52°F (11.1°C). Weather in November »Weather in December
December, the first month of the winter in Wynnefield, is still a chilly month, with temperature in the range of an average low of 32°F (0°C) and an average high of 43.2°F (6.2°C). With December's onset, the weather reveals a slight temperature decrease, transitioning from a fresh 52°F (11.1°C) in November to a frosty 43.2°F (6.2°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Wynnefield, PA
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (36.7°F).
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure
Wynnefield, PA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.99"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:
30.05"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
Wynnefield, PA
- Average wind speed in January:
8.2mph - Average wind speed in February:
8.2mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8.4mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.6mph - Average wind speed in August:
5.5mph - Average wind speed in September:
5.9mph - Average wind speed in October:
7mph - Average wind speed in November:
7.4mph - Average wind speed in December:
7.8mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity
Wynnefield, PA
The months with the highest relative humidity are February and October (78%).
The months with the lowest relative humidity are April, July and August (71%).
Average rainfall
Wynnefield, PA
- Average rainfall in January:
0.55" - Average rainfall in February:
0.63" - Average rainfall in March:
0.79" - Average rainfall in April:
0.75" - Average rainfall in May:
0.91" - Average rainfall in June:
0.98"
- Average rainfall in July:
1.14" - Average rainfall in August:
1.14" - Average rainfall in September:
0.63" - Average rainfall in October:
0.63" - Average rainfall in November:
0.63" - Average rainfall in December:
0.91"
The wettest months (with the highest rainfall) are July and August (1.14").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days
Wynnefield, PA
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
6.2 days - Average rainfall days in March:
8.7 days - Average rainfall days in April:
10.7 days - Average rainfall days in May:
12.6 days - Average rainfall days in June:
12 days
- Average rainfall days in July:
13.3 days - Average rainfall days in August:
12.2 days - Average rainfall days in September:
10.1 days - Average rainfall days in October:
8.3 days - Average rainfall days in November:
5.9 days - Average rainfall days in December:
6.5 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is January (5.3 days).
Average snowfall
Wynnefield, PA
The months with the highest snowfall are February and March (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Wynnefield, PA
- Average snowfall days in January:
4.5 days - Average snowfall days in February:
4.4 days - Average snowfall days in March:
3.1 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 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 days - Average snowfall days in November:
0.7 days - Average snowfall days in December:
2.1 days
The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Wynnefield, 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 48min - Average sunshine in February:
4h and 36min - 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 42min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 36min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Wynnefield, PA
- Average sunshine days in January:
21.9 days - Average sunshine days in February:
18.3 days - Average sunshine days in March:
19.2 days - Average sunshine days in April:
17.5 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
15.3 days
- Average sunshine days in July:
14.9 days - Average sunshine days in August:
15.4 days - Average sunshine days in September:
18.5 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
22.5 days - Average sunshine days in December:
22.2 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is July (14.9 days).
Average UV index
Wynnefield, PA
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Wynnefield, PA
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility
Wynnefield, PA
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).





