January weather forecast
Hartstown, PA

Share

Weather in January

January, like December, is another subzero cold winter month in Hartstown, Pennsylvania, with an average temperature fluctuating between 30.4°F (-0.9°C) and 18.9°F (-7.3°C).

Temperature

In Hartstown, the lowest temperatures are generally noted in January, averaging a high of 30.4°F (-0.9°C) and a low of 18.9°F (-7.3°C).

Humidity

The average relative humidity in January is 88%.

Rainfall

In Hartstown, in January, it is raining for 7.6 days, with typically 1.81" (46mm) of accumulated precipitation. Throughout the year, there are 167.5 rainfall days, and 24.29" (617mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Hartstown. January is the month with the most snowfall. Snow falls for 20.7 days and accumulates 6.42" (163mm) of snow.

Daylight

In January, the average length of the day in Hartstown is 9h and 35min.
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, in Hartstown, sunrise is at 7:34 am and sunset at 5:35 pm EST.

Sunshine

The month with the least sunshine is January, with an average of 2.4h of sunshine.

UV index

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A daily high UV index of 2 in January leads to these guidelines:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Feb 13, 2024 | Published by: Weather U.S. | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What month is the coldest in Hartstown?

The coldest period tends to be January, when average temperatures fluctuate between a high of 30.4°F (-0.9°C) and a low of 18.9°F (-7.3°C).

How cold is it in Hartstown in January?

The high-temperature in Hartstown during January is 30.4°F (-0.9°C) and the low-temperature is 18.9°F (-7.3°C).

What is the average humidity in January in Hartstown?

In January, the average relative humidity in Hartstown is 88%.

How many days does it rain in January in Hartstown?

In Hartstown, in January, during 7.6 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

When does it snow the most in Hartstown?

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.

How much does it snow in Hartstown in January?

In Hartstown, Pennsylvania, in January, snow falls for 20.7 days, with typically accumulated 6.42" (163mm) of snow.

What is the average length of the day in January in Hartstown?

In Hartstown, the average day length in January is 9h and 35min.

When are sunrise and sunset in January in Hartstown?

On the first day of January in Hartstown, Pennsylvania, sunrise is at 7:48 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:35 pm EST.

What is the month with the least sunshine in Hartstown?

January has the least sunshine of the year in Hartstown, with an average of 2.4h of sunshine.

How long on average sun shines in January in Hartstown?

In January, the average sunshine duration in Hartstown, Pennsylvania, is 2.4h.

What is the UV index intensity in January in Hartstown?

In January, the average daily maximum UV index in Hartstown is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Hartstown, PA

Average temperature in January - Hartstown, 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
Hartstown, PA

Average pressure in January - Hartstown, 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
Hartstown, PA

Average wind speed in January - Hartstown, 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
Hartstown, PA

Average humidity in January - Hartstown, 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
Hartstown, PA

Average rainfall in January - Hartstown, 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
Hartstown, PA

Average rainfall days in January - Hartstown, 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
Hartstown, PA

Average snowfall in January - Hartstown, 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
Hartstown, PA

Average snowfall days in January - Hartstown, 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
Hartstown, PA

Average daylight in January / Average sunshine in January - Hartstown, PA
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 6min).
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
Hartstown, PA

Average sunshine days in January - Hartstown, 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
Hartstown, PA

Average UV index in January - Hartstown, 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
Hartstown, PA

Average cloud cover in January - Hartstown, 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
Hartstown, PA

Average visibility in January - Hartstown, 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).

Hartstown, Pennsylvania, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location