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 tends to be the coldest month, with temperatures averaging a daily high of 33.1°F (0.6°C) and a low of 20.7°F (-6.3°C).Humidity
In Monroeville, the average relative humidity in January is 84%.Rainfall
In Monroeville, Pennsylvania, during January, the rain falls for 7.7 days and regularly aggregates up to 1.1" (28mm) of precipitation. Throughout the year, in Monroeville, there are 151 rainfall days, and 20.39" (518mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Monroeville, during January, snow falls for 9.7 days and regularly aggregates up to 2.28" (58mm) of snow. Throughout the year, there are 35.4 snowfall days, and 10.35" (263mm) of snow is accumulated.Daylight
In Monroeville, the average length of the day in January is 9h and 41min.On the first day of January in Monroeville, sunrise is at 7:42 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:35 pm EST.
Sunshine
The month with the least sunshine in Monroeville is January, with an average of 2.9h of sunshine.UV index
In January, the average daily maximum UV index in Monroeville is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In January, the maximum UV index of 2 suggests this advice:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What is the coldest time of year in Monroeville?
How cold is it in Monroeville in January?
What is the average humidity in January in Monroeville?
How much does it rain in Monroeville in January?
How many days does it snow in January in Monroeville?
How many hours of daylight does Monroeville have in January?
When is the sunrise / sunset in January in Monroeville?
What is the month with the least sunshine in Monroeville?
How many hours of sunshine does Monroeville have in January?
How high is the UV index in January in Monroeville?
Average temperature in January
Monroeville, PA
- Average high temperature in January: 33.1°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in January: 20.7°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 (20.7°F).
Average pressure in January
Monroeville, PA
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in January
Monroeville, PA
- Average wind speed in January: 8.1mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in January
Monroeville, PA
- Average humidity in January: 84%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (76%).
Average rainfall in January
Monroeville, PA
- Average rainfall in January: 1.1"
The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is November (1.06").
Average rainfall days in January
Monroeville, PA
- Average rainfall days in January: 7.7 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in January
Monroeville, PA
- Average snowfall in January: 2.28"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Monroeville, PA
- Average snowfall days in January: 9.7 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Monroeville, 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: 2h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in January
Monroeville, PA
- Average sunshine days in January: 16.7 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in January
Monroeville, PA
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Monroeville, PA
- Average cloud cover in January: 69
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in January
Monroeville, PA
- Average visibility in January: 5mi
The months with the highest visibility are April, June, August and November (6mi).
The months with the lowest visibility are January, February, March, May, July, September, October and December (5mi).
Monroeville, Pennsylvania, USA
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