January weather forecast
Mahaffey, PA

Share

Weather in January

January, like December, is another subzero cold winter month in Mahaffey, Pennsylvania, with an average temperature ranging between max 30.2°F (-1°C) and min 18°F (-7.8°C).

Temperature

January is the month when Mahaffey sees the lowest average temperatures, with a high of 30.2°F (-1°C) and a low of 18°F (-7.8°C).

Humidity

In Mahaffey, the average relative humidity in January is 85%.

Rainfall

The months with the least rainfall are January and November Rain falls for 5.9 days and accumulates 1.06" (27mm) of rain.

Snowfall

Months with snowfall are January through May, October through December. In Mahaffey, in January, snow falls for 11.8 days, with typically accumulated 3.31" (84mm) of snow. In Mahaffey, during the entire year, snow falls for 46.2 days and aggregates up to 14.45" (367mm) of snow.

Daylight

In Mahaffey, the average length of the day in January is 9h and 38min.
On the first day of the month, sunrise is at 7:39 am and sunset at 4:57 pm. On the last day of January, sunrise is at 7:26 am and sunset at 5:30 pm EST.

Sunshine

With an average of 2.6h of sunshine, January has the least sunshine of the year.

UV index

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In January, a regular UV index of 2 translates into these guidelines:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Jun 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

January is the coldest month, with the temperature often reaching an average high of 30.2°F (-1°C) and an average low of 18°F (-7.8°C).

How cold is January?

In January, in Mahaffey, the average high-temperature is 30.2°F (-1°C), and the average low-temperature is 18°F (-7.8°C).

What is the average humidity in January?

In January, the average relative humidity in Mahaffey is 85%.

What is the driest month?

January and November are months with the least rain when the rain falls for 5.9 days and typically aggregates up to 1.06" (27mm) of rain.

How many days does it rain in January?

In Mahaffey, during January, the rain falls for 5.9 days and regularly aggregates up to 1.06" (27mm) of precipitation.

How much does it snow in Mahaffey in January?

In January, it is snowing for 11.8 days. Throughout January, 3.31" (84mm) of snow is accumulated.

What is the average length of the day in January?

In January, the average day length is 9h and 38min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:39 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:30 pm EST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 2.6h of sunshine.

How many hours of sunshine does Mahaffey have in January?

The average sunshine duration in January is 2.6h.

What is the UV index reading in January?

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation.
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
Mahaffey, PA

Average temperature in January - Mahaffey, PA
  • Average high temperature in January: 30.2°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in January: 18°F

The month with the highest average low temperature is July (57.9°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in January
Mahaffey, PA

Average pressure in January - Mahaffey, 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
Mahaffey, PA

Average wind speed in January - Mahaffey, PA
  • Average wind speed in January: 9.3mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in January
Mahaffey, PA

Average humidity in January - Mahaffey, PA
  • Average humidity in January: 85%

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is July (77%).

Average rainfall in January
Mahaffey, PA

Average rainfall in January - Mahaffey, PA
  • Average rainfall in January: 1.06"

The wettest month (with the highest rainfall) is May (2.28").
The driest months (with the least rainfall) are January and November (1.06").

Average rainfall days in January
Mahaffey, PA

Average rainfall days in January - Mahaffey, PA
  • Average rainfall days in January: 5.9 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in January
Mahaffey, PA

Average snowfall in January - Mahaffey, PA
  • Average snowfall in January: 3.31"

The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Mahaffey, PA

Average snowfall days in January - Mahaffey, PA
  • Average snowfall days in January: 11.8 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Mahaffey, PA

Average daylight in January / Average sunshine in January - Mahaffey, 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 18min).

  • Average sunshine in January: 2h and 4min

The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).

Average sunshine days in January
Mahaffey, PA

Average sunshine days in January - Mahaffey, PA
  • Average sunshine days in January: 16.5 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in January
Mahaffey, PA

Average UV index in January - Mahaffey, PA
  • Average UV index in January: 2

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in January
Mahaffey, PA

Average cloud cover in January - Mahaffey, PA
  • Average cloud cover in January: 74

The month with the most cloud cover is January (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 40).

Average visibility in January
Mahaffey, PA

Average visibility in January - Mahaffey, PA
  • Average visibility in January: 5mi

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).

Mahaffey, Pennsylvania, USA

Weather forecast for your location

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