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
January, recording an average high temperature of 36.1°F (2.3°C) and a low temperature of 23.5°F (-4.7°C), is Glen Rock's coldest month.Humidity
The months with the lowest humidity are January, March, April and November, with an average relative humidity of 76%.Rainfall
In Glen Rock, in January, it is raining for 6.5 days, with typically 1.5" (38mm) of accumulated precipitation. Throughout the year, in Glen Rock, Pennsylvania, there are 145.3 rainfall days, and 24.88" (632mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In January, in Glen Rock, Pennsylvania, it is snowing for 5.5 days. Throughout January, 2.76" (70mm) of snow is accumulated. In Glen Rock, during the entire year, snow falls for 19.2 days and aggregates up to 10.59" (269mm) of snow.Daylight
In Glen Rock, the average length of the day in January is 9h and 44min.On the first day of the month, sunrise is at 7:28 am and sunset at 4:52 pm. On the last day of January, sunrise is at 7:15 am and sunset at 5:24 pm EST.
Sunshine
In January, the average sunshine is 5h.UV index
The months with the lowest UV index in Glen Rock are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 in January translates into these instructions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What is the coldest time of year in Glen Rock?
How cold is it in Glen Rock in January?
What is the least humid month in Glen Rock?
What is the average humidity in January in Glen Rock?
How many days does it rain in January in Glen Rock?
How much does it snow in Glen Rock in January?
How many hours of daylight does Glen Rock have in January?
What time are sunrise and sunset in January in Glen Rock?
How many hours of sunshine does Glen Rock have in January?
What are the months with the lowest UV index in Glen Rock?
What is the UV index reading in January in Glen Rock?
Average temperature in January
Glen Rock, PA
- Average high temperature in January: 36.1°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in January: 23.5°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in January
Glen Rock, PA
- Average pressure in January: 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 in January
Glen Rock, PA
- Average wind speed in January: 8.8mph
The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in January
Glen Rock, PA
- Average humidity in January: 76%
The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are January, March, April and November (76%).
Average rainfall in January
Glen Rock, PA
- Average rainfall in January: 1.5"
The wettest month (with the highest rainfall) is August (3.03").
The driest month (with the least rainfall) is February (1.38").
Average rainfall days in January
Glen Rock, PA
- Average rainfall days in January: 6.5 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in January
Glen Rock, PA
- Average snowfall in January: 2.76"
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 in January
Glen Rock, PA
- Average snowfall days in January: 5.5 days
The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Glen Rock, PA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 54min).
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 42min).
Average sunshine days in January
Glen Rock, PA
- Average sunshine days in January: 19.3 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in January
Glen Rock, PA
- Average UV index in January: 2
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, November and December (UV index 2).
Average cloud cover in January
Glen Rock, PA
- Average cloud cover in January: 46
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in January
Glen Rock, 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).
Glen Rock, Pennsylvania, USA
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