Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Penllyn records the coldest temperatures in January, averaging a high of 36.7°F (2.6°C) and a low of 24.6°F (-4.1°C).Humidity
The average relative humidity in January in Penllyn, Pennsylvania, is 75%.Rainfall
In Penllyn, in January, during 6.6 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In Penllyn, Pennsylvania, during the entire year, the rain falls for 122.4 days and collects up to 12.68" (322mm) of precipitation.Snowfall
Months with snowfall in Penllyn, Pennsylvania, are January through April, November and December. In Penllyn, Pennsylvania, during January, snow falls for 5.1 days and regularly aggregates up to 1.18" (30mm) of snow. In Penllyn, during the entire year, snow falls for 16.3 days and aggregates up to 4.72" (120mm) of snow.Daylight
In Penllyn, Pennsylvania, the average length of the day in January is 9h and 42min.On the first day of January, sunrise is at 7:23 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:17 pm EST.
Sunshine
The average sunshine in January is 5h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Penllyn. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 2 during January, leads to the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
What is the coldest time of year in Penllyn?
How cold is January in Penllyn?
What is the average humidity in January in Penllyn?
How many days does it rain in January in Penllyn?
How many days does it snow in January in Penllyn?
How many hours of daylight does Penllyn have in January?
What time are sunrise and sunset in January in Penllyn?
How long on average sun shines in January in Penllyn?
What is the month with the lowest UV index in Penllyn?
How high is the UV index in January in Penllyn?
Average temperature in January
Penllyn, PA
- Average high temperature in January: 36.7°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in January: 24.6°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in January
Penllyn, PA
- Average pressure in January: 30.08"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 in January
Penllyn, PA
- Average wind speed in January: 8mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in January
Penllyn, PA
- Average humidity in January: 75%
The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April, July and August (72%).
Average rainfall in January
Penllyn, PA
- Average rainfall in January: 0.83"
The wettest month (with the highest rainfall) is August (1.54").
The driest month (with the least rainfall) is September (0.75").
Average rainfall days in January
Penllyn, PA
- Average rainfall days in January: 6.6 days
The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is November (6.4 days).
Average snowfall in January
Penllyn, PA
- Average snowfall in January: 1.18"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Penllyn, PA
- Average snowfall days in January: 5.1 days
The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Penllyn, PA
- Average daylight in January: 9h and 4min
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: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in January
Penllyn, PA
- Average sunshine days in January: 21.1 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (14.4 days).
Average UV index in January
Penllyn, PA
- Average UV index in January: 2
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, March, November and December (UV index 2).
Average cloud cover in January
Penllyn, PA
- Average cloud cover in January: 45
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in January
Penllyn, PA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Penllyn, Pennsylvania, USA
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