Climate and monthly weather forecastPenryn, PA
Climate and monthly weather forecast
Weather in January
January, like December, in Penryn, Pennsylvania, is an icy winter month, with temperature in the range of an average low of 22.8°F (-5.1°C) and an average high of 35.4°F (1.9°C). January is the coldest month, with an average high-temperature of 35.4°F (1.9°C) and an average low-temperature of 22.8°F (-5.1°C). Weather in January »Weather in February
The last month of the winter, February, is another cold month in Penryn, Pennsylvania, with an average temperature fluctuating between 24.6°F (-4.1°C) and 38.8°F (3.8°C). In February, the average high-temperature registers at a still cold 38.8°F (3.8°C), nearly identical to January's 35.4°F (1.9°C). Weather in February »Weather in March
March, the first month of the spring in Penryn, is a chilly month, with an average temperature fluctuating between 32.2°F (0.1°C) and 47.8°F (8.8°C). As March sets, the average high-temperature shows an increase, moving up from an icy 38.8°F (3.8°C) in February to a chilly 47.8°F (8.8°C). Weather in March »Weather in April
April is a moderate spring month in Penryn, Pennsylvania, with an average temperature fluctuating between 41.9°F (5.5°C) and 59.9°F (15.5°C). Penryn's weather in April shows a rise in the average high-temperature, moving up from March's chilly 47.8°F (8.8°C) to a moderate 59.9°F (15.5°C). Weather in April »Weather in May
May, the last month of the spring in Penryn, is a pleasant month, with an average temperature ranging between max 70.2°F (21.2°C) and min 52.2°F (11.2°C). As May begins, there is an increase in the average high-temperature, moving from a moderate 59.9°F (15.5°C) in April to an agreeable 70.2°F (21.2°C). Weather in May »Weather in June
June, the first month of the summer in Penryn, is a warm month, with an average temperature fluctuating between 77.5°F (25.3°C) and 59.5°F (15.3°C). As May transitions into June, Penryn notices a gentle rise in the average high-temperature, transitioning from an agreeable 70.2°F (21.2°C) to a warm 77.5°F (25.3°C). Weather in June »Weather in July
July, like June, in Penryn, Pennsylvania, is a moderately hot summer month, with temperature in the range of an average low of 64.2°F (17.9°C) and an average high of 82.6°F (28.1°C). In Penryn, the peak average temperatures are observed in July, with a high of 82.6°F (28.1°C) and a low of 64.2°F (17.9°C). The heat index for July is estimated at a hot 89.6°F (32°C). Weather in July »Weather in August
August, the last month of the summer in Penryn, is also a moderately hot month, with an average temperature ranging between min 62.2°F (16.8°C) and max 80.8°F (27.1°C). The transition into August reveals an average high-temperature of a still moderately hot 80.8°F (27.1°C), mirroring a close resemblance to July. Weather in August »Weather in September
September, the first month of the autumn in Penryn, is also a moderately hot month, with an average temperature ranging between min 56.1°F (13.4°C) and max 74.5°F (23.6°C). The average high-temperature slightly decreases in September, shifting from 80.8°F (27.1°C) in August to a still moderately hot 74.5°F (23.6°C). Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Penryn, Pennsylvania, with temperature in the range of an average high of 63°F (17.2°C) and an average low of 46.8°F (8.2°C). October's onset brings a slight change in high-temperatures, falling from a warm 74.5°F (23.6°C) in September to a comfortable 63°F (17.2°C). Weather in October »Weather in November
November, the last month of the autumn in Penryn, is another cool month, with an average temperature fluctuating between 35.8°F (2.1°C) and 50.4°F (10.2°C). As November begins, there is a decrease in the average high-temperature, falling from a refreshing 63°F (17.2°C) in October to a cool 50.4°F (10.2°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Penryn, Pennsylvania, with an average temperature ranging between max 41.5°F (5.3°C) and min 30°F (-1.1°C). The arrival of December corresponds with a minor reduction in the average high-temperature, down from November's cool 50.4°F (10.2°C) to a cold 41.5°F (5.3°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Penryn, PA
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (35.4°F).
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure
Penryn, PA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.08"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:
29.97"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:
30.13"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Penryn, PA
- Average wind speed in January:
8.8mph - Average wind speed in February:
8.8mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.6mph - Average wind speed in May:
6.6mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.1mph - Average wind speed in August:
5mph - Average wind speed in September:
5.7mph - Average wind speed in October:
7.2mph - Average wind speed in November:
7.6mph - Average wind speed in December:
8.3mph
The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity
Penryn, PA
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall
Penryn, PA
- Average rainfall in January:
2.2" - Average rainfall in February:
2.09" - Average rainfall in March:
2.36" - Average rainfall in April:
2.52" - Average rainfall in May:
2.87" - Average rainfall in June:
2.44"
- Average rainfall in July:
2.91" - Average rainfall in August:
3.31" - Average rainfall in September:
2.13" - Average rainfall in October:
2.68" - Average rainfall in November:
2.44" - Average rainfall in December:
2.36"
The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is February (2.09").
Average rainfall days
Penryn, PA
- Average rainfall days in January:
9 days - Average rainfall days in February:
10.1 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
15.7 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
16.1 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
9.8 days - Average rainfall days in December:
11.3 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (9 days).
Average snowfall
Penryn, PA
- Average snowfall in January:
3.27" - Average snowfall in February:
2.64" - Average snowfall in March:
3.43" - Average snowfall in April:
0.16" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is March (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Penryn, PA
- Average snowfall days in January:
7.8 days - Average snowfall days in February:
6.3 days - Average snowfall days in March:
4.7 days - Average snowfall days in April:
0.3 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 days - Average snowfall days in December:
3.8 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Penryn, 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 42min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 18min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 54min - Average sunshine in October:
5h and 24min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 48min
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
Penryn, PA
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
12.3 days - Average sunshine days in March:
13.1 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
12 days
- Average sunshine days in July:
11.6 days - Average sunshine days in August:
12.3 days - Average sunshine days in September:
15.3 days - Average sunshine days in October:
15.2 days - Average sunshine days in November:
17.8 days - Average sunshine days in December:
16.2 days
The month with the most sunshine days is November (17.8 days).
The months with the least sunshine days are May and July (11.6 days).
Average UV index
Penryn, PA
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Penryn, PA
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Penryn, PA
The months with the highest visibility are January, February, March, April, June, July, November and December (6mi).
The months with the lowest visibility are May, August, September and October (5mi).





