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 month of January, characterized by an average high of 30.4°F (-0.9°C) and a low of 18.9°F (-7.3°C), is recognized as the coldest.Humidity
In January, the average relative humidity is 88%.Rainfall
In January, the rain falls for 7.6 days. Throughout January, 1.81" (46mm) of precipitation is accumulated. In Harmonsburg, during the entire year, the rain falls for 167.5 days and collects up to 24.29" (617mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is January, when snow falls for 20.7 days and typically aggregates up to 6.42" (163mm) of snow.Daylight
In Harmonsburg, the average length of the day in January is 9h and 34min.On the first day of the month, sunrise is at 7:48 am and sunset at 5:01 pm. On the last day of January, sunrise is at 7:34 am and sunset at 5:34 pm EST.
Sunshine
January has the least sunshine of the year, with an average of 2.4h 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 unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 2 in January interprets into the following advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is it in January?
What is the average humidity in January?
How many days does it rain in January in Harmonsburg?
What is the snowiest month?
How much does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Harmonsburg have in January?
What is the UV index reading in January?
Average temperature in January
Harmonsburg, PA
- Average high temperature in January: 30.4°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in January: 18.9°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in January
Harmonsburg, PA
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Harmonsburg, PA
- Average wind speed in January: 9.2mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in January
Harmonsburg, PA
- Average humidity in January: 88%
The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are April, May, June, July and August (80%).
Average rainfall in January
Harmonsburg, PA
- Average rainfall in January: 1.81"
The wettest month (with the highest rainfall) is June (2.72").
The driest month (with the least rainfall) is November (1.42").
Average rainfall days in January
Harmonsburg, PA
- Average rainfall days in January: 7.6 days
The month with the highest number of rainy days is October (17.5 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in January
Harmonsburg, PA
- Average snowfall in January: 6.42"
The month with the highest snowfall is January (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Harmonsburg, PA
- Average snowfall days in January: 20.7 days
The month with the highest number of snowfall days is January (20.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Harmonsburg, PA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 2h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in January
Harmonsburg, PA
- Average sunshine days in January: 6.8 days
The month with the most sunshine days is July (12.5 days).
The month with the least sunshine days is February (6.7 days).
Average UV index in January
Harmonsburg, PA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Harmonsburg, PA
- Average cloud cover in January: 76
The month with the most cloud cover is January (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in January
Harmonsburg, PA
- Average visibility in January: 4mi
The months with the highest visibility are April, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Harmonsburg, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location