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
Glen Rock's coldest temperatures are experienced in January, with average high temperatures of 36.1°F (2.3°C) and lows of 23.5°F (-4.7°C).Humidity
January, March, April and November, with an average relative humidity of 76%, are the least humid months.Rainfall
In Glen Rock, in January, during 6.5 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Glen Rock, during the entire year, the rain falls for 145.3 days and collects up to 24.88" (632mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Glen Rock, during January, snow falls for 5.5 days and regularly aggregates up to 2.76" (70mm) of snow. Throughout the year, there are 19.2 snowfall days, and 10.59" (269mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 44min.On the first day of January, sunrise is at 7:28 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:24 pm EST.
Sunshine
In Glen Rock, the average sunshine in January is 5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A typical high UV index of 2 in January suggests the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is January in Glen Rock?
What are the least humid months?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
How many hours of daylight does Glen Rock have in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
When is the lowest UV index?
What is the UV index intensity in January?
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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