Climate and monthly weather forecastPlum, PA
Climate and monthly weather forecast
Weather in January
January, like December, in Plum, Pennsylvania, is another cold winter month, with an average temperature fluctuating between 32.7°F (0.4°C) and 20.3°F (-6.5°C). Plum's coldest month, January, registers temperatures that range from a high of 32.7°F (0.4°C) to a low of 20.3°F (-6.5°C). Weather in January »Weather in February
The last month of the winter, February, is another cold month in Plum, Pennsylvania, with an average temperature ranging between max 36.9°F (2.7°C) and min 22.5°F (-5.3°C). February's advent denotes a minor fluctuation in the average high-temperature to a still icy 36.9°F (2.7°C) from January's 32.7°F (0.4°C). Weather in February »Weather in March
March, the first month of the spring in Plum, is a chilly month, with an average temperature ranging between min 30.6°F (-0.8°C) and max 47.1°F (8.4°C). March's onset brings a rise in the average high-temperature, moving from a wintry 36.9°F (2.7°C) in February to a chilly 47.1°F (8.4°C). Weather in March »Weather in April
April is a mild spring month in Plum, Pennsylvania, with an average temperature ranging between max 59.9°F (15.5°C) and min 40.5°F (4.7°C). The onset of April brings a temperature shift, with the average high-temperature moving from a chilly 47.1°F (8.4°C) in March to a mild 59.9°F (15.5°C). Weather in April »Weather in May
May, the last month of the spring in Plum, is a pleasant month, with temperature in the range of an average high of 71.2°F (21.8°C) and an average low of 50.4°F (10.2°C). May's onset brings a temperature rise, moving from a moderate 59.9°F (15.5°C) in April to an agreeable 71.2°F (21.8°C). Weather in May »Weather in June
June, the first month of the summer in Plum, is a warm month, with an average temperature ranging between min 56.8°F (13.8°C) and max 78.4°F (25.8°C). The transition from May to June brings a subtle temperature rise, with average high-temperatures increasing from an agreeable 71.2°F (21.8°C) to a warm 78.4°F (25.8°C). Weather in June »Weather in July
July, like June, in Plum, Pennsylvania, is another warm summer month, with temperature in the range of an average low of 61.3°F (16.3°C) and an average high of 82.9°F (28.3°C). With an average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 61.3°F (16.3°C), July is the warmest month. The heat index in July is computed to be a tropical 89.6°F (32°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Plum, Pennsylvania, with an average temperature fluctuating between 59.9°F (15.5°C) and 81.3°F (27.4°C). August's onset brings an average high-temperature of a still warm 81.3°F (27.4°C), showing a minute difference from July's 82.9°F (28.3°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Plum, Pennsylvania, with an average temperature ranging between min 54.7°F (12.6°C) and max 74.8°F (23.8°C). The arrival of September corresponds with a light shift in temperature, down from a moderately hot 81.3°F (27.4°C) in August to a still warm 74.8°F (23.8°C). Weather in September »Weather in October
October, like September, in Plum, Pennsylvania, is another enjoyable autumn month, with temperature in the range of an average low of 45°F (7.2°C) and an average high of 61.3°F (16.3°C). In October, the average high-temperature goes from a warm 74.8°F (23.8°C) in September to an enjoyable 61.3°F (16.3°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Plum, Pennsylvania, with temperature in the range of an average high of 48.4°F (9.1°C) and an average low of 33.8°F (1°C). A change in temperatures is noted as October gives way to November, with average highs reducing from an enjoyable 61.3°F (16.3°C) to a frosty 48.4°F (9.1°C). Weather in November »Weather in December
December, the first month of the winter in Plum, is still a cold month, with an average temperature ranging between min 27.5°F (-2.5°C) and max 38.7°F (3.7°C). The commencement of December indicates a shift in the average high-temperature, receding from November's frosty 48.4°F (9.1°C) to a wintry 38.7°F (3.7°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Plum, PA
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (32.7°F).
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure
Plum, PA
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Plum, PA
- Average wind speed in January:
8.1mph - Average wind speed in February:
7.7mph - Average wind speed in March:
7.5mph - Average wind speed in April:
7.6mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.7mph - Average wind speed in September:
5.2mph - Average wind speed in October:
6.3mph - Average wind speed in November:
6.9mph - Average wind speed in December:
7.5mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity
Plum, PA
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (76%).
Average rainfall
Plum, PA
- Average rainfall in January:
2.56" - Average rainfall in February:
2.91" - Average rainfall in March:
2.76" - Average rainfall in April:
3.66" - Average rainfall in May:
3.66" - Average rainfall in June:
3.43"
- Average rainfall in July:
3.23" - Average rainfall in August:
2.48" - Average rainfall in September:
2.56" - Average rainfall in October:
3.15" - Average rainfall in November:
2.2" - Average rainfall in December:
2.99"
The wettest months (with the highest rainfall) are April and May (3.66").
The driest month (with the least rainfall) is November (2.2").
Average rainfall days
Plum, PA
- Average rainfall days in January:
11.1 days - Average rainfall days in February:
11.2 days - Average rainfall days in March:
14.8 days - Average rainfall days in April:
17.9 days - Average rainfall days in May:
20.2 days - Average rainfall days in June:
18.4 days
- Average rainfall days in July:
18.3 days - Average rainfall days in August:
17.7 days - Average rainfall days in September:
14.1 days - Average rainfall days in October:
16.1 days - Average rainfall days in November:
12 days - Average rainfall days in December:
13.7 days
The month with the highest number of rainy days is May (20.2 days).
The month with the least rainy days is January (11.1 days).
Average snowfall
Plum, PA
- Average snowfall in January:
6.73" - Average snowfall in February:
6.06" - Average snowfall in March:
3.86" - Average snowfall in April:
0.75" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is January (6.73").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Plum, PA
- Average snowfall days in January:
18 days - Average snowfall days in February:
14.4 days - Average snowfall days in March:
8.9 days - Average snowfall days in April:
2.7 days - Average snowfall days in May:
0.2 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:
0.3 days - Average snowfall days in November:
5.1 days - Average snowfall days in December:
13.5 days
The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Plum, 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:
9h and 54min - Average daylight in December:
9h and 18min
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 18min).
- Average sunshine in January:
2h and 54min - Average sunshine in February:
3h and 24min - Average sunshine in March:
5h and 18min - Average sunshine in April:
7h and 30min - Average sunshine in May:
8h and 48min - Average sunshine in June:
9h and 18min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 30min - Average sunshine in October:
5h and 12min - Average sunshine in November:
4h and 42min - Average sunshine in December:
3h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days
Plum, PA
- Average sunshine days in January:
7.3 days - Average sunshine days in February:
7.8 days - Average sunshine days in March:
9.6 days - Average sunshine days in April:
10.1 days - Average sunshine days in May:
9.3 days - Average sunshine days in June:
9.8 days
- Average sunshine days in July:
10.3 days - Average sunshine days in August:
12 days - Average sunshine days in September:
13.7 days - Average sunshine days in October:
12.8 days - Average sunshine days in November:
14.8 days - Average sunshine days in December:
9 days
The month with the most sunshine days is November (14.8 days).
The month with the least sunshine days is January (7.3 days).
Average UV index
Plum, PA
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Plum, PA
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
Plum, PA
The months with the highest visibility are April and August (6mi).
The months with the lowest visibility are January and February (4mi).





