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
The month of January, characterized by an average high of 35.1°F (1.7°C) and a low of 22.1°F (-5.5°C), is recognized as the coldest.Humidity
In Orrstown, 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 in Orrstown. Snow falls for 8.6 days and accumulates 4.92" (125mm) of snow.Daylight
The average length of the day in January in Orrstown is 9h and 43min.On the first day of the month, sunrise is at 7:32 am and sunset at 4:55 pm. On the last day of January, sunrise is at 7:20 am and sunset at 5:27 pm EST.
Sunshine
The average sunshine in January is 4.5h.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 minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 2 during January, leads to the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
What are the coldest months in Orrstown?
How cold is it in Orrstown in January?
What is the average humidity in January in Orrstown?
What is the driest month in Orrstown?
How many days does it rain in January in Orrstown?
What is the snowiest month in Orrstown?
How many days does it snow in January in Orrstown?
What is the average length of the day in January in Orrstown?
What time are sunrise and sunset in January in Orrstown?
How long on average sun shines in January in Orrstown?
What are the months with the lowest UV index in Orrstown?
What is the UV index intensity in January in Orrstown?
Average temperature in January
Orrstown, 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
Orrstown, 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
Orrstown, 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
Orrstown, 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
Orrstown, 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
Orrstown, 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
Orrstown, 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
Orrstown, 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
Orrstown, 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
Orrstown, 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
Orrstown, 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
Orrstown, 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
Orrstown, 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).
Orrstown, Pennsylvania, USA
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