January weather forecast
Palo Alto, PA

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Weather in January

January, like December, in Palo Alto, Pennsylvania, is a wintry winter month, with an average temperature fluctuating between 20.5°F (-6.4°C) and 32.5°F (0.3°C).

Temperature

Palo Alto notes the coldest temperatures in January, with a high average of 32.5°F (0.3°C) and a low of 20.5°F (-6.4°C).

Humidity

In January, the average relative humidity in Palo Alto is 80%.

Rainfall

In Palo Alto, Pennsylvania, during January, the rain falls for 10.8 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, in Palo Alto, Pennsylvania, there are 172.9 rainfall days, and 34.21" (869mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Palo Alto are January through May, October through December. January is the month with the most snowfall in Palo Alto. Snow falls for 11.8 days and accumulates 5.47" (139mm) of snow.

Daylight

In January, the average length of the day is 9h and 39min.
On the first day of January in Palo Alto, sunrise is at 7:28 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:20 pm EST.

Sunshine

The months with the least sunshine are January, February and December, with an average of 4.4h of sunshine.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What is the coldest month in Palo Alto?

Palo Alto's January weather, marked by an average high temperature of 32.5°F (0.3°C) and an average low temperature of 20.5°F (-6.4°C), is the coldest in the year.

How cold is it in Palo Alto in January?

In January, the average high-temperature and low-temperature are 32.5°F (0.3°C) and 20.5°F (-6.4°C) respectively.

What is the average humidity in January in Palo Alto?

In January, the average relative humidity in Palo Alto is 80%.

How much does it rain in Palo Alto in January?

In Palo Alto, during January, the rain falls for 10.8 days and regularly aggregates up to 2.68" (68mm) of precipitation.

What is the snowiest month in Palo Alto?

The month with the most snowfall in Palo Alto, Pennsylvania, is January, when snow falls for 11.8 days and typically aggregates up to 5.47" (139mm) of snow.

How much does it snow in Palo Alto in January?

In Palo Alto, in January, snow falls for 11.8 days, with typically accumulated 5.47" (139mm) of snow.

What is the average length of the day in January in Palo Alto?

The average day length in January is 9h and 39min.

What time are sunrise and sunset in January in Palo Alto?

In January, on the first day of the month, sunrise is at 7:28 am and sunset at 4:47 pm. On the last day of the month, in Palo Alto, Pennsylvania, sunrise is at 7:15 am and sunset at 5:20 pm EST.

What is the month with the least sunshine in Palo Alto?

January, February and December, with an average of 4.4h of sunshine, are months with the least sunshine in Palo Alto.

How long on average sun shines in January in Palo Alto?

In Palo Alto, the average sunshine duration in January is 4.4h.

What are the months with the lowest UV index in Palo Alto?

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

What is the UV index reading in January in Palo Alto?

In January, the average daily maximum UV index in Palo Alto, Pennsylvania, is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
38.8°F 3.8°C
32.5°F 0.3°C
36.1°F 2.3°C
Average low temperature
27.7°F -2.4°C
20.5°F -6.4°C
22.3°F -5.4°C
Average pressure
30.1" 765mmHg
30.09" 764mmHg
30.06" 764mmHg
Average wind speed
7.7mph 12.4km/h
8.1mph 13km/h
8.1mph 13km/h
Average max. wind speed
8.3mph 13.4km/h
8.8mph 14.2km/h
8.8mph 14.2km/h
Average wind speed gusts
12.5mph 20.1km/h
13mph 20.9km/h
13mph 20.9km/h
Average humidity
81%
80%
83%
Average rainfall
2.87" 73mm
2.68" 68mm
2.6" 66mm
Average rainfall days
13.5
10.8
10.9
Average snowfall
2.8" 71mm
5.47" 139mm
4.84" 123mm
Average snowfall days
6.9
11.8
10.4
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
4h 2min
4h 2min
4h 2min
Average sunshine days
14.2
13.3
10.6
Average UV index
2
2
2
Average cloud cover
53%
52%
53%
Average visibility
5mi 8km
5mi 8km
5mi 8km

Average temperature in January
Palo Alto, PA

Average temperature in January - Palo Alto, PA
  • Average high temperature in January: 32.5°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 (32.5°F).

  • Average low temperature in January: 20.5°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

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Average pressure in January
Palo Alto, PA

Average pressure in January - Palo Alto, 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).

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Average wind speed in January
Palo Alto, PA

Average wind speed in January - Palo Alto, PA
  • Average wind speed in January: 8.1mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in January
Palo Alto, PA

Average humidity in January - Palo Alto, PA
  • Average humidity in January: 80%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).

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Average rainfall in January
Palo Alto, PA

Average rainfall in January - Palo Alto, PA
  • Average rainfall in January: 2.68"

The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (2.09").

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Average rainfall days in January
Palo Alto, PA

Average rainfall days in January - Palo Alto, PA
  • Average rainfall days in January: 10.8 days

The month with the highest number of rainy days is May (18.7 days).
The months with the least rainy days are January and November (10.8 days).

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Average snowfall in January
Palo Alto, PA

Average snowfall in January - Palo Alto, PA
  • Average snowfall in January: 5.47"

The month with the highest snowfall is January (5.47").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Palo Alto, PA

Average snowfall days in January - Palo Alto, 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).

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Average daylight in January /
Average sunshine in January
Palo Alto, PA

Average daylight in January / Average sunshine in January - Palo Alto, 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: 4h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 24min).

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Average sunshine days in January
Palo Alto, PA

Average sunshine days in January - Palo Alto, PA
  • Average sunshine days in January: 13.3 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is May (9.6 days).

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Average UV index in January
Palo Alto, PA

Average UV index in January - Palo Alto, PA
  • Average UV index in January: 2

The month with the highest UV index is 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
Palo Alto, PA

Average cloud cover in January - Palo Alto, PA
  • Average cloud cover in January: 52

The months with the most cloud cover are February and December (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in January
Palo Alto, PA

Average visibility in January - Palo Alto, 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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Palo Alto, Pennsylvania, USA

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