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, noted for its average high-temperature of 32.9°F (0.5°C) and an average low-temperature of 20.3°F (-6.5°C), is considered the coldest month.Humidity
The average relative humidity in January is 84%.Rainfall
The month with the least rainfall is January, when the rain falls for 8.1 days and typically collects 1.22" (31mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Santiago, in January, snow falls for 14.3 days, with typically accumulated 2.4" (61mm) of snow. In Santiago, during the entire year, snow falls for 49.9 days and aggregates up to 10.12" (257mm) of snow.Daylight
In Santiago, the average length of the day in January is 9h and 41min.On the first day of January, sunrise is at 7:44 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:37 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 2.9h of sunshine.UV index
In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 2 in January interprets into the following advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Experience reduced UV exposure by about half when donning a wide-brim hat. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Santiago?
How cold is it in Santiago in January?
What is the average humidity in January in Santiago?
What is the driest month in Santiago?
How many days does it rain in January in Santiago?
How many days does it snow in January in Santiago?
What is the average length of the day in January in Santiago?
When are sunrise and sunset in January in Santiago?
What is the month with the least sunshine in Santiago?
How long on average sun shines in January in Santiago?
What is the UV index reading in January in Santiago?
Average temperature in January
Santiago, PA
- Average high temperature in January: 32.9°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 (32.9°F).
- Average low temperature in January: 20.3°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in January
Santiago, PA
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in January
Santiago, PA
- Average wind speed in January: 8.1mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in January
Santiago, PA
- Average humidity in January: 84%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (75%).
Average rainfall in January
Santiago, PA
- Average rainfall in January: 1.22"
The wettest month (with the highest rainfall) is July (2.36").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in January
Santiago, PA
- Average rainfall days in January: 8.1 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in January
Santiago, PA
- Average snowfall in January: 2.4"
The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Santiago, PA
- Average snowfall days in January: 14.3 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Santiago, 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 18min).
- Average sunshine in January: 2h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in January
Santiago, PA
- Average sunshine days in January: 11.8 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is February (10.7 days).
Average UV index in January
Santiago, PA
- Average UV index in January: 2
The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Santiago, PA
- Average cloud cover in January: 70
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in January
Santiago, PA
- Average visibility in January: 5mi
The months with the highest visibility are April, June, August and November (6mi).
The months with the lowest visibility are January, February, March, May, July, September, October and December (5mi).
Santiago, Pennsylvania, USA
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