January weather forecast
Chambersburg, PA

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Weather in January

Visiting Chambersburg, Pennsylvania in January offers a winter wonderland experience. This month is known for its chilly temperature as it stands as the coldest month of the year. Interesting feature of January is its higher wind speed, reaching up to 7.8mph (12.6km/h). While the town is known for its quaint charm, January hits it with a frosty charm. Despite the temperature, the town remains vibrant and energetic.

Temperature

Chambersburg records the coldest temperatures in January, averaging a high of 35.1°F (1.7°C) and a low of 22.1°F (-5.5°C).

Humidity

The average relative humidity in January in Chambersburg is 77%.

Rainfall

The month with the least rainfall in Chambersburg is January, when the rain falls for 7.3 days and typically collects 1.85" (47mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. January is the month with the most snowfall. Snow falls for 8.6 days and accumulates 4.92" (125mm) of snow.

Daylight

In January, the average length of the day in Chambersburg is 9h and 43min.
On the first day of the month, sunrise is at 7:32 am and sunset at 4:55 pm. On the last day of January, in Chambersburg, Pennsylvania, sunrise is at 7:19 am and sunset at 5:28 pm EST.

Sunshine

In January, the average sunshine in Chambersburg, Pennsylvania, is 4.5h.

UV index

The months with the lowest UV index 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 minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum UV index of 2 in January translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Frequently asked questions

What is the coldest month in Chambersburg?

The month of January, characterized by an average high of 35.1°F (1.7°C) and a low of 22.1°F (-5.5°C), is recognized as the coldest in Chambersburg, Pennsylvania.

How cold is January in Chambersburg?

In January, in Chambersburg, the average high-temperature is 35.1°F (1.7°C), and the average low-temperature is 22.1°F (-5.5°C).

What is the average humidity in January in Chambersburg?

In Chambersburg, the average relative humidity in January is 77%.

What is the driest month in Chambersburg?

January is the month with the least rainfall. Rain falls for 7.3 days and accumulates 1.85" (47mm) of precipitation.

How much does it rain in Chambersburg in January?

In Chambersburg, Pennsylvania, in January, it is raining for 7.3 days, with typically 1.85" (47mm) of accumulated precipitation.

What is the snowiest month in Chambersburg?

The month with the most snowfall in Chambersburg is January, when snow falls for 8.6 days and typically aggregates up to 4.92" (125mm) of snow.

How many days does it snow in January in Chambersburg?

In Chambersburg, Pennsylvania, during January, snow falls for 8.6 days and regularly aggregates up to 4.92" (125mm) of snow.

How many hours of daylight does Chambersburg have in January?

The average day length in January is 9h and 43min.

When is the sunrise / sunset in January in Chambersburg?

In January, on the first day of the month, sunrise is at 7:32 am and sunset at 4:55 pm. On the last day of the month, in Chambersburg, Pennsylvania, sunrise is at 7:19 am and sunset at 5:28 pm EST.

How long on average sun shines in January in Chambersburg?

The average sunshine duration in January is 4.5h.

What are the months with the lowest UV index in Chambersburg?

The months with the lowest UV index in Chambersburg are January through March, November and December, with an average maximum UV index of 2.

What is the UV index reading in January in Chambersburg?

The average daily maximum UV index in January in Chambersburg is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
40.8°F 4.9°C
35.1°F 1.7°C
38.8°F 3.8°C
Average low temperature
28.9°F -1.7°C
22.1°F -5.5°C
24.3°F -4.3°C
Average pressure
30.11" 765mmHg
30.1" 765mmHg
30.07" 764mmHg
Average wind speed
7.2mph 11.6km/h
7.8mph 12.6km/h
7.7mph 12.4km/h
Average max. wind speed
7.8mph 12.6km/h
8.5mph 13.7km/h
8.3mph 13.4km/h
Average wind speed gusts
11.5mph 18.5km/h
12.2mph 19.6km/h
12.2mph 19.6km/h
Average humidity
79%
77%
80%
Average rainfall
2.05" 52mm
1.85" 47mm
1.93" 49mm
Average rainfall days
10.8
7.3
8.9
Average snowfall
1.73" 44mm
4.92" 125mm
3.78" 96mm
Average snowfall days
4.2
8.6
7.8
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
4h 4min
4h 3min
4h 2min
Average sunshine days
16.6
17.3
13.4
Average UV index
2
2
2
Average cloud cover
52%
52%
52%
Average visibility
6mi 9.7km
5mi 8km
5mi 8km

Average temperature in January
Chambersburg, PA

Average temperature in January - Chambersburg, 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 (62.4°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).

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Average pressure in January
Chambersburg, PA

Average pressure in January - Chambersburg, PA
  • Average pressure in January: 30.1"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in January
Chambersburg, PA

Average wind speed in January - Chambersburg, PA
  • Average wind speed in January: 7.8mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in January
Chambersburg, PA

Average humidity in January - Chambersburg, PA
  • Average humidity in January: 77%

The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is July (75%).

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Average rainfall in January
Chambersburg, PA

Average rainfall in January - Chambersburg, PA
  • Average rainfall in January: 1.85"

The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (1.85").

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Average rainfall days in January
Chambersburg, PA

Average rainfall days in January - Chambersburg, PA
  • Average rainfall days in January: 7.3 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in January
Chambersburg, PA

Average snowfall in January - Chambersburg, PA
  • Average snowfall in January: 4.92"

The month with the highest snowfall is January (4.92").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Chambersburg, PA

Average snowfall days in January - Chambersburg, PA
  • Average snowfall days in January: 8.6 days

The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Chambersburg, 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in January
Chambersburg, PA

Average sunshine days in January - Chambersburg, PA
  • Average sunshine days in January: 17.3 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (11.6 days).

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Average UV index in January
Chambersburg, PA

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

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

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Average cloud cover in January
Chambersburg, PA

Average cloud cover in January - Chambersburg, PA
  • Average cloud cover in January: 52

The months with the most cloud cover are January, February and December (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in January
Chambersburg, PA

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

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

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Chambersburg, Pennsylvania, USA

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