January weather forecast
Mendenhall, PA

Share

Weather in January

January, the same as December, is an icy winter month in Mendenhall, Pennsylvania, with temperature in the range of an average low of 24.8°F (-4°C) and an average high of 36.9°F (2.7°C).

Temperature

The coldest time of the year is January, with temperatures averaging a high of 36.9°F (2.7°C) and a low of 24.8°F (-4°C).

Humidity

The average relative humidity in January is 76%.

Rainfall

In Mendenhall, in January, during 6.6 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In Mendenhall, during the entire year, the rain falls for 135 days and collects up to 17.76" (451mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Mendenhall, during January, snow falls for 5.2 days and regularly aggregates up to 1.38" (35mm) of snow. In Mendenhall, during the entire year, snow falls for 16.6 days and aggregates up to 5.47" (139mm) of snow.

Daylight

In Mendenhall, the average length of the day in January is 9h and 44min.
On the first day of January, sunrise is at 7:23 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:20 pm EST.

Sunshine

In Mendenhall, the average sunshine in January is 5h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Mendenhall?

With its average high temperature of 36.9°F (2.7°C) and a low of 24.8°F (-4°C), January is regarded as the coldest month.

How cold is January?

January temperatures vary between a high-temperature of 36.9°F (2.7°C) and a low-temperature of 24.8°F (-4°C).

What is the average humidity in January?

The average relative humidity in January is 76%.

How many days does it rain in January?

In Mendenhall, during January, the rain falls for 6.6 days and regularly aggregates up to 1.1" (28mm) of precipitation.

How many days does it snow in January?

In Mendenhall, during January, snow falls for 5.2 days and regularly aggregates up to 1.38" (35mm) of snow.

How many hours of daylight does Mendenhall have in January?

In January, the average day length is 9h and 44min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:23 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:20 pm EST.

How long on average sun shines in January?

The average sunshine duration in January is 5h.

When is the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in January?

In Mendenhall, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe 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
Mendenhall, PA

Average temperature in January - Mendenhall, PA
  • Average high temperature in January: 36.9°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in January: 24.8°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in January
Mendenhall, PA

Average pressure in January - Mendenhall, PA
  • Average pressure in January: 30.09"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in January
Mendenhall, PA

Average wind speed in January - Mendenhall, PA
  • Average wind speed in January: 8.6mph

The windiest months (with the highest average wind speed) are January, February and March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in January
Mendenhall, PA

Average humidity in January - Mendenhall, PA
  • Average humidity in January: 76%

The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (74%).

Average rainfall in January
Mendenhall, PA

Average rainfall in January - Mendenhall, PA
  • Average rainfall in January: 1.1"

The wettest month (with the highest rainfall) is August (2.36").
The driest month (with the least rainfall) is November (1.06").

Average rainfall days in January
Mendenhall, PA

Average rainfall days in January - Mendenhall, PA
  • Average rainfall days in January: 6.6 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is January (6.6 days).

Average snowfall in January
Mendenhall, PA

Average snowfall in January - Mendenhall, PA
  • Average snowfall in January: 1.38"

The month with the highest snowfall is March (1.5").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in January
Mendenhall, PA

Average snowfall days in January - Mendenhall, PA
  • Average snowfall days in January: 5.2 days

The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Mendenhall, 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: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in January
Mendenhall, PA

Average sunshine days in January - Mendenhall, PA
  • Average sunshine days in January: 19.8 days

The month with the most sunshine days is November (21 days).
The month with the least sunshine days is July (12.8 days).

Average UV index in January
Mendenhall, PA

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

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January
Mendenhall, PA

Average cloud cover in January - Mendenhall, PA
  • Average cloud cover in January: 45

The months with the most cloud cover are February, March and May (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in January
Mendenhall, PA

Average visibility in January - Mendenhall, 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).

Mendenhall, Pennsylvania, USA

Weather forecast for your location

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