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
The coldest month in Harrisburg is January, with an average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 22.1°F (-5.5°C).Humidity
In Harrisburg, the average relative humidity in January is 77%.Rainfall
January and February are months with the least rain in Harrisburg when the rain falls for 5.7 days and typically aggregates up to 0.71" (18mm) of rain.Snowfall
Months with snowfall are January through April, November and December. In Harrisburg, during January, snow falls for 6.3 days and regularly aggregates up to 1.18" (30mm) of snow. Throughout the year, in Harrisburg, Pennsylvania, there are 19.9 snowfall days, and 4.29" (109mm) of snow is accumulated.Daylight
In Harrisburg, the average length of the day in January is 9h and 41min.On the first day of the month, sunrise is at 7:30 am and sunset at 4:51 pm. On the last day of January, in Harrisburg, Pennsylvania, sunrise is at 7:17 am and sunset at 5:24 pm EST.
Sunshine
In January, the average sunshine in Harrisburg, Pennsylvania, is 4.6h.UV index
The months with the lowest UV index in Harrisburg are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In January, a daily maximum UV index of 2 leads to the following instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What part of the year is the coldest in Harrisburg?
How cold is it in Harrisburg in January?
What is the average humidity in January in Harrisburg?
What is the driest month in Harrisburg?
How many days does it rain in January in Harrisburg?
How much does it snow in Harrisburg in January?
How many hours of daylight does Harrisburg have in January?
What time are sunrise and sunset in January in Harrisburg?
How many hours of sunshine does Harrisburg have in January?
What are the months with the lowest UV index in Harrisburg?
How high is the UV index in January in Harrisburg?
Average temperature in January
Harrisburg, PA
- Average high temperature in January: 35.1°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in January: 22.1°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in January
Harrisburg, 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 (29.95"Hg).
Average wind speed in January
Harrisburg, PA
- Average wind speed in January: 8mph
The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in January
Harrisburg, PA
- Average humidity in January: 77%
The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are March and April (75%).
Average rainfall in January
Harrisburg, PA
- Average rainfall in January: 0.71"
The wettest month (with the highest rainfall) is August (1.3").
The driest months (with the least rainfall) are January and February (0.71").
Average rainfall days in January
Harrisburg, PA
- Average rainfall days in January: 5.7 days
The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (5.7 days).
Average snowfall in January
Harrisburg, PA
- Average snowfall in January: 1.18"
The month with the highest snowfall is February (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Harrisburg, PA
- Average snowfall days in January: 6.3 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Harrisburg, 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 24min).
- Average sunshine in January: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in January
Harrisburg, PA
- Average sunshine days in January: 20.6 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (14.1 days).
Average UV index in January
Harrisburg, PA
- Average UV index in January: 2
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Harrisburg, PA
- Average cloud cover in January: 49
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in January
Harrisburg, 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).
Harrisburg, Pennsylvania, USA
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