January weather forecast
Altoona, PA

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The scenic Horseshoe Curve in Altoona, Pennsylvania, from above, with a view of the scenic environs of deep tree cover, hills, and scenic lakes
The scenic Horseshoe Curve in Altoona, Pennsylvania, from above, with a view of the scenic environs of deep tree cover, hills, and scenic lakes

Weather in January

January sees Altoona, Pennsylvania in the throes of winter, with a possibility of snowfall stretching across almost half the month. Frequent overcast skies keep the sunshine hours scarce throughout the month. It is the beginning of the icy season; hence, the daylight hours remain relatively short. January records the lowest UV index for the year, making it safe to venture outdoors sans protective wear. Uniquely, this chilly month reports the coldest average temperature range, with highs reaching 31.1°F (-0.5°C) and lows dropping to 19.4°F (-7°C).

Temperature

January, recording an average high temperature of 31.1°F (-0.5°C) and a low temperature of 19.4°F (-7°C), is Altoona's coldest month.

Humidity

The average relative humidity in January in Altoona is 83%.

Rainfall

In January, the rain falls for 10.4 days. Throughout January, 1.81" (46mm) of precipitation is accumulated. Throughout the year, there are 165 rainfall days, and 25.31" (643mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Altoona. The month with the most snowfall in Altoona is January, when snow falls for 15.9 days and typically aggregates up to 5.28" (134mm) of snow.

Daylight

In Altoona, the average length of the day in January is 9h and 40min.
On the first day of the month, sunrise is at 7:36 am and sunset at 4:57 pm. On the last day of January, sunrise is at 7:24 am and sunset at 5:29 pm EST.

Sunshine

The month with the least sunshine is January, with an average of 3.5h of sunshine.

UV index

In January, the average daily maximum UV index in Altoona 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 the ordinary person.
Note: The UV index of 2 in January translates into these instructions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. When the Sun is at its strongest around midday, find shade and limit exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

What part of the year is the coldest in Altoona?

Altoona, Pennsylvania, records the coldest temperatures in January, averaging a high of 31.1°F (-0.5°C) and a low of 19.4°F (-7°C).

How cold is it in Altoona in January?

The average high-temperature and low-temperature in Altoona, Pennsylvania, during January are 31.1°F (-0.5°C) and 19.4°F (-7°C) respectively.

What is the average humidity in January in Altoona?

In January, the average relative humidity in Altoona, Pennsylvania, is 83%.

How many days does it rain in January in Altoona?

In Altoona, in January, during 10.4 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

What is the snowiest month in Altoona?

The month with the most snowfall in Altoona, Pennsylvania, is January, when snow falls for 15.9 days and typically aggregates up to 5.28" (134mm) of snow.

How much does it snow in Altoona in January?

In January, in Altoona, it is snowing for 15.9 days. Throughout January, 5.28" (134mm) of snow is accumulated.

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

The average day length in January is 9h and 40min.

What time are sunrise and sunset in January in Altoona?

On the first day of January in Altoona, Pennsylvania, sunrise is at 7:36 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:29 pm EST.

What is the month with the least sunshine in Altoona?

The month with the least sunshine in Altoona, Pennsylvania, is January, with an average of 3.5h of sunshine.

How long on average sun shines in January in Altoona?

In Altoona, the average sunshine duration in January is 3.5h.

How high is the UV index in January in Altoona?

In Altoona, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
36.9°F 2.7°C
31.1°F -0.5°C
35.2°F 1.8°C
Average low temperature
26.6°F -3°C
19.4°F -7°C
21.6°F -5.8°C
Average pressure
30.1" 765mmHg
30.1" 765mmHg
30.07" 764mmHg
Average wind speed
8.5mph 13.7km/h
9.2mph 14.8km/h
8.8mph 14.2km/h
Average max. wind speed
9.1mph 14.6km/h
9.8mph 15.8km/h
9.5mph 15.3km/h
Average wind speed gusts
13mph 20.9km/h
13.7mph 22km/h
13.4mph 21.6km/h
Average humidity
84%
83%
85%
Average rainfall
2.17" 55mm
1.81" 46mm
1.97" 50mm
Average rainfall days
12.3
10.4
9.8
Average snowfall
3.5" 89mm
5.28" 134mm
4.76" 121mm
Average snowfall days
11.1
15.9
12.8
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
3h 4min
3h 3min
3h 5min
Average sunshine days
11.7
9.8
8.6
Average UV index
1
2
2
Average cloud cover
62%
65%
63%
Average visibility
5mi 8km
5mi 8km
5mi 8km

Average temperature in January
Altoona, PA

Average temperature in January - Altoona, PA
  • Average high temperature in January: 31.1°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in January: 19.4°F

The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

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Average pressure in January
Altoona, PA

Average pressure in January - Altoona, 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
Altoona, PA

Average wind speed in January - Altoona, 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 August (4.9mph).

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Average humidity in January
Altoona, PA

Average humidity in January - Altoona, PA
  • Average humidity in January: 83%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April and July (77%).

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Average rainfall in January
Altoona, PA

Average rainfall in January - Altoona, PA
  • Average rainfall in January: 1.81"

The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is November (1.57").

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Average rainfall days in January
Altoona, PA

Average rainfall days in January - Altoona, PA
  • Average rainfall days in January: 10.4 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (9.8 days).

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Average snowfall in January
Altoona, PA

Average snowfall in January - Altoona, PA
  • Average snowfall in January: 5.28"

The month with the highest snowfall is January (5.28").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Altoona, PA

Average snowfall days in January - Altoona, PA
  • Average snowfall days in January: 15.9 days

The month with the highest number of snowfall days is January (15.9 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
Altoona, PA

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

  • Average sunshine in January: 3h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in January
Altoona, PA

Average sunshine days in January - Altoona, PA
  • Average sunshine days in January: 9.8 days

The month with the most sunshine days is November (15.3 days).
The month with the least sunshine days is February (8.6 days).

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Average UV index in January
Altoona, PA

Average UV index in January - Altoona, 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).

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Average cloud cover in January
Altoona, PA

Average cloud cover in January - Altoona, PA
  • Average cloud cover in January: 65

The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 37).

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Average visibility in January
Altoona, PA

Average visibility in January - Altoona, 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).

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Altoona, Pennsylvania, USA

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