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, having an average high-temperature of 36°F (2.2°C) and an average low-temperature of 23.9°F (-4.5°C), is the coldest month.Humidity
The average relative humidity in January is 77%.Rainfall
In Holtwood, in January, during 8.7 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. Throughout the year, there are 156.5 rainfall days, and 28.74" (730mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Holtwood, during January, snow falls for 6.7 days and regularly aggregates up to 2.95" (75mm) of snow. In Holtwood, during the entire year, snow falls for 20.3 days and aggregates up to 11.54" (293mm) of snow.Daylight
In Holtwood, Pennsylvania, the average length of the day in January is 9h and 44min.On the first day of January, sunrise is at 7:26 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:22 pm EST.
Sunshine
In January, the average sunshine is 4.9h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 2 in January leads to these recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is it in January?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Holtwood have in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Holtwood, PA
- Average high temperature in January: 36°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°F).
- Average low temperature in January: 23.9°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 (23.9°F).
Average pressure in January
Holtwood, 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
Holtwood, PA
- Average wind speed in January: 8.9mph
The windiest months (with the highest average wind speed) are January, February and March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in January
Holtwood, PA
- Average humidity in January: 77%
The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are March and April (76%).
Average rainfall in January
Holtwood, PA
- Average rainfall in January: 1.93"
The wettest month (with the highest rainfall) is August (3.7").
The driest month (with the least rainfall) is February (1.89").
Average rainfall days in January
Holtwood, PA
- Average rainfall days in January: 8.7 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (8.4 days).
Average snowfall in January
Holtwood, PA
- Average snowfall in January: 2.95"
The month with the highest snowfall is March (4.02").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Holtwood, PA
- Average snowfall days in January: 6.7 days
The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Holtwood, 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: 4h and 5min
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 42min).
Average sunshine days in January
Holtwood, PA
- Average sunshine days in January: 17.9 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in January
Holtwood, 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, November and December (UV index 2).
Average cloud cover in January
Holtwood, PA
- Average cloud cover in January: 46
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in January
Holtwood, PA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, October, November and December (6mi).
The months with the lowest visibility are May, August and September (5mi).
Holtwood, Pennsylvania, USA
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