Normal weather for Pennsylvania in January
It's cold in January in Pennsylvania with an average temperature of 2°C. Temperatures this month range from a low of -2°C to a high of 7°C. At night, you can expect temperatures between -10°C and -2°C.
In January, there is an average of 110 mm of precipitation, spread over 14 days. Of the total precipitation, about 28 cm falls as snow in January. The wind speed is around 4 Bft, mostly coming from the Southwest.
Looking for sun? January isn’t a good month to be in Pennsylvania. There’s too much chance of rain this month.
Pennsylvania in January |
New York | ||
|---|---|---|---|
 Average Temperature |
2°C | 5°C | |
 High Temp |
7°C | 11°C | |
| Low Temp |
-2°C | 1°C | |
 Total Precipitation |
110 mm | 97 mm | |
| Rainy Days |
14 days | 12 days | |
 Total Snowfall |
28 cm | 16 cm | |
| Snowy Days |
12 days | 8 days | |
The UV index is a maximum of 3 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
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Start of January
The month of January starts in Pennsylvania with really cold temps, averaging around 3°C during the day and nights dipping to about -5°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.
Mid January
By mid-January, daytime temps stay steady at around 3°C, with nights around -5°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of January
By the end of January, the average daytime temperature in Pennsylvania is around 2°C, while nighttime temps are about -6°C. A shower might pop up, but overall, the weather will be dry and sunny.
Temperature records
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The climate in Pennsylvania is based on weather data from . Other places, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in Pennsylvania to get the full picture of the climate.
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Daily Temperature in January in Pennsylvania
This chart shows the average daily high temperatures in January in Pennsylvania, measured in degrees Celsius. The bottom of the chart shows the days of January. Based on historical data, this chart shows the average daily temperatures for this month.
Daily Precipitation in January in Pennsylvania
The chart below shows the average daily precipitation in January for Pennsylvania, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for January, you can expect about 14 days of precipitation in Pennsylvania.
Daily Snowfall in January in Pennsylvania
This chart shows the average daily snowfall in January in Pennsylvania, measured in centimeters. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in January.
Daily UV Index in January in Pennsylvania
This chart shows the average daily UV index in January in Pennsylvania, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in January in Pennsylvania Over the Years
This chart shows the average temperature in January in Pennsylvania, measured in degrees Celsius, over the past few years.
Total Precipitation in January in Pennsylvania Over the Years
This chart shows the average precipitation in January in Pennsylvania, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Snowfall in January in Pennsylvania per year
This chart shows the average snowfall in January in Pennsylvania, measured in centimeters, over the past few years.
Daily Climate in January for Pennsylvania
Click on any day in January to get detailed info about the usual weather on that day in Pennsylvania. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in January in Pennsylvania
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Average Weather in Pennsylvania by Month
Click on a month below to see detailed weather info for Pennsylvania. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Pennsylvania for all months at once
