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
In Guilford, the month of January is known for its lowest average temperatures, reaching 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 is 77%.Rainfall
The month with the least rainfall is January, when the rain falls for 7.3 days and typically collects 1.85" (47mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. 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 is 9h and 43min.On the first day of January, sunrise is at 7:31 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:27 pm EST.
Sunshine
In Guilford, the average sunshine in January 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 reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 2 during January translates into these guidelines:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is it in January?
What is the average humidity in January in Guilford?
What is the driest month?
How many days does it rain in January?
When does it snow the most in Guilford?
How many days does it snow in January?
How many hours of daylight does Guilford have in January?
When are sunrise and sunset in January?
How many hours of sunshine does Guilford have in January?
What is the month with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Guilford, 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).
Average pressure in January
Guilford, 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).
Average wind speed in January
Guilford, 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).
Average humidity in January
Guilford, 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%).
Average rainfall in January
Guilford, 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").
Average rainfall days in January
Guilford, 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).
Average snowfall in January
Guilford, 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").
Average snowfall days in January
Guilford, 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).
Average daylight in January /
Average sunshine in January
Guilford, 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).
Average sunshine days in January
Guilford, 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).
Average UV index in January
Guilford, 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).
Average cloud cover in January
Guilford, 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).
Average visibility in January
Guilford, 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).
Guilford, Pennsylvania, USA
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