Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January, recording an average high temperature of 28.4°F (-2°C) and a low temperature of 17.2°F (-8.2°C), is Ralston's coldest month.Humidity
In January, the average relative humidity is 83%.Rainfall
January is the month with the least rainfall. Rain falls for 7.5 days and accumulates 1.73" (44mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Ralston, Pennsylvania, in January, snow falls for 14.5 days, with typically accumulated 6.42" (163mm) of snow. Throughout the year, there are 63.2 snowfall days, and 33.23" (844mm) of snow is accumulated.Daylight
In Ralston, the average length of the day in January is 9h and 35min.On the first day of January, sunrise is at 7:34 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:21 pm EST.
Sunshine
January and December, with an average of 3.2h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In January, the maximum UV index of 1 translates into these guidelines:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is January?
What is the average humidity in January?
What is the driest month?
How much does it rain in January?
How much does it snow in January?
What is the average length of the day in January in Ralston?
When are sunrise and sunset in January?
What are the months with the least sunshine?
How long on average sun shines in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Ralston, PA
- Average high temperature in January: 28.4°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in January: 17.2°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in January
Ralston, PA
- Average pressure in January: 30.08"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Ralston, PA
- Average wind speed in January: 8.5mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in January
Ralston, PA
- Average humidity in January: 83%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is July (78%).
Average rainfall in January
Ralston, PA
- Average rainfall in January: 1.73"
The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is January (1.73").
Average rainfall days in January
Ralston, PA
- Average rainfall days in January: 7.5 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in January
Ralston, PA
- Average snowfall in January: 6.42"
The month with the highest snowfall is February (7.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Ralston, PA
- Average snowfall days in January: 14.5 days
The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Ralston, 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 12min).
- Average sunshine in January: 3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The months with the least sunshine are January and December (Average sunshine: 3h and 12min).
Average sunshine days in January
Ralston, PA
- Average sunshine days in January: 13.5 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in January
Ralston, PA
- Average UV index in January: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Ralston, PA
- Average cloud cover in January: 68
The months with the most cloud cover are January and December (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in January
Ralston, PA
- Average visibility in January: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Ralston, Pennsylvania, USA
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