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 Jennerstown, January is the month with the lowest recorded average temperatures, measuring a high of 31.1°F (-0.5°C) and a low of 18.5°F (-7.5°C).Humidity
The average relative humidity in January is 86%.Rainfall
In January, in Jennerstown, Pennsylvania, the rain falls for 8.2 days. Throughout January, 2.24" (57mm) of precipitation is accumulated. In Jennerstown, during the entire year, the rain falls for 164.4 days and collects up to 30.08" (764mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall in Jennerstown is January, when snow falls for 15.3 days and typically aggregates up to 6.46" (164mm) of snow.Daylight
In Jennerstown, Pennsylvania, the average length of the day in January is 9h and 42min.On the first day of January, sunrise is at 7:38 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:33 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 2.9h of sunshine.UV index
In Jennerstown, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In January, a daily UV index of 2 turns into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
What is the coldest month in Jennerstown?
How cold is it in Jennerstown in January?
What is the average humidity in January in Jennerstown?
How many days does it rain in January in Jennerstown?
When does it snow the most in Jennerstown?
How many days does it snow in January in Jennerstown?
What is the average length of the day in January in Jennerstown?
When are sunrise and sunset in January in Jennerstown?
What is the month with the least sunshine in Jennerstown?
How long on average sun shines in January in Jennerstown?
How high is the UV index in January in Jennerstown?
Average temperature in January
Jennerstown, PA
- Average high temperature in January: 31.1°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 (31.1°F).
- Average low temperature in January: 18.5°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in January
Jennerstown, PA
- Average pressure in January: 30.11"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
Jennerstown, PA
- Average wind speed in January: 10.2mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in January
Jennerstown, PA
- Average humidity in January: 86%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, June and July (79%).
Average rainfall in January
Jennerstown, PA
- Average rainfall in January: 2.24"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is November (1.65").
Average rainfall days in January
Jennerstown, PA
- Average rainfall days in January: 8.2 days
The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in January
Jennerstown, PA
- Average snowfall in January: 6.46"
The month with the highest snowfall is January (6.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Jennerstown, PA
- Average snowfall days in January: 15.3 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Jennerstown, 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: 2h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in January
Jennerstown, PA
- Average sunshine days in January: 9.5 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in January
Jennerstown, 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).
Average cloud cover in January
Jennerstown, PA
- Average cloud cover in January: 72
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in January
Jennerstown, 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).
Jennerstown, Pennsylvania, USA
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