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
Willow Grove's coldest month, January, registers temperatures that range from a high of 36.7°F (2.6°C) to a low of 24.6°F (-4.1°C).Humidity
The average relative humidity in January in Willow Grove is 75%.Rainfall
In Willow Grove, during January, the rain falls for 6.6 days and regularly aggregates up to 0.83" (21mm) of precipitation. In Willow Grove, 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 Willow Grove are January through April, November and December. In Willow Grove, during January, snow falls for 5.1 days and regularly aggregates up to 1.18" (30mm) of snow. In Willow Grove, during the entire year, snow falls for 16.3 days and aggregates up to 4.72" (120mm) of snow.Daylight
The average length of the day in January is 9h and 42min.On the first day of the month, sunrise is at 7:22 am and sunset at 4:45 pm. On the last day of January, in Willow Grove, sunrise is at 7:10 am and sunset at 5:17 pm EST.
Sunshine
In Willow Grove, Pennsylvania, the average sunshine in January is 5h.UV index
The months with the lowest UV index in Willow Grove are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 in January converts into 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 the Sun's peak radiation during midday hours is essential for health and safety. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
What is the coldest month in Willow Grove?
How cold is it in Willow Grove in January?
What is the average humidity in January in Willow Grove?
How much does it rain in Willow Grove in January?
How much does it snow in Willow Grove in January?
How many hours of daylight does Willow Grove have in January?
What time are sunrise and sunset in January in Willow Grove?
How many hours of sunshine does Willow Grove have in January?
When is the lowest UV index in Willow Grove?
What is the UV index intensity in January in Willow Grove?
Average temperature in January
Willow Grove, 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
Willow Grove, 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
Willow Grove, 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
Willow Grove, 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
Willow Grove, 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
Willow Grove, 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
Willow Grove, 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
Willow Grove, 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
Willow Grove, 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
Willow Grove, 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
Willow Grove, 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
Willow Grove, 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
Willow Grove, 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).
Willow Grove, Pennsylvania, USA
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