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
During the coldest month, January, temperatures average a high of 33.6°F (0.9°C) and a low of 21.7°F (-5.7°C).Humidity
In Rehrersburg, the average relative humidity in January is 78%.Rainfall
In Rehrersburg, in January, during 9.3 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. Throughout the year, there are 168.8 rainfall days, and 33.27" (845mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Rehrersburg, during January, snow falls for 9.2 days and regularly aggregates up to 3.98" (101mm) of snow. In Rehrersburg, during the entire year, snow falls for 29.6 days and aggregates up to 15.59" (396mm) of snow.Daylight
In Rehrersburg, the average length of the day in January is 9h and 40min.On the first day of the month, sunrise is at 7:28 am and sunset at 4:48 pm. On the last day of January, sunrise is at 7:15 am and sunset at 5:21 pm EST.
Sunshine
In Rehrersburg, the average sunshine in January is 4.6h.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 of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: During January, 2 as the daily maximum UV index converts into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. To cut down UV radiation exposure by about half, sport a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is January?
What is the average humidity in January?
How many days does it rain in January?
How many days does it snow in January?
How many hours of daylight does Rehrersburg have in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Rehrersburg have in January?
What are the months with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Rehrersburg, PA
- Average high temperature in January: 33.6°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in January: 21.7°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in January
Rehrersburg, 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).
Average wind speed in January
Rehrersburg, PA
- Average wind speed in January: 8.5mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in January
Rehrersburg, PA
- Average humidity in January: 78%
The months with the highest relative humidity are February, May and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in January
Rehrersburg, PA
- Average rainfall in January: 2.52"
The wettest month (with the highest rainfall) is August (3.39").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days in January
Rehrersburg, PA
- Average rainfall days in January: 9.3 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in January
Rehrersburg, PA
- Average snowfall in January: 3.98"
The month with the highest snowfall is March (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Rehrersburg, PA
- Average snowfall days in January: 9.2 days
The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Rehrersburg, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in January
Rehrersburg, PA
- Average sunshine days in January: 15.4 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (10.2 days).
Average UV index in January
Rehrersburg, PA
- Average UV index in January: 2
The month with the highest UV index is June (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
Rehrersburg, PA
- Average cloud cover in January: 49
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in January
Rehrersburg, PA
- Average visibility in January: 6mi
The months with the highest visibility are January, March, April, June, July, November and December (6mi).
The months with the lowest visibility are February, May, August, September and October (5mi).
Rehrersburg, Pennsylvania, USA
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