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 coldest time of the year is January, with temperatures averaging a high of 35.2°F (1.8°C) and a low of 22.8°F (-5.1°C).Humidity
In Harleysville, the average relative humidity in January is 77%.Rainfall
The month with the least rainfall in Harleysville is January, when the rain falls for 5.7 days and typically collects 0.87" (22mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. In Harleysville, in January, during 4.8 snowfall days, 1.06" (27mm) of snow is typically accumulated. Throughout the year, in Harleysville, there are 17 snowfall days, and 5.43" (138mm) of snow is accumulated.Daylight
The average length of the day in January in Harleysville is 9h and 41min.On the first day of January, sunrise is at 7:24 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:18 pm EST.
Sunshine
The average sunshine in January in Harleysville, Pennsylvania, is 4.7h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Harleysville. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In January, an average UV index of 2 transforms into the following instructions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What is the coldest month in Harleysville?
How cold is it in Harleysville in January?
What is the average humidity in January in Harleysville?
What is the driest month in Harleysville?
How many days does it rain in January in Harleysville?
How many days does it snow in January in Harleysville?
What is the average length of the day in January in Harleysville?
When is the sunrise / sunset in January in Harleysville?
How many hours of sunshine does Harleysville have in January?
When is the lowest UV index in Harleysville?
What is the UV index intensity in January in Harleysville?
Average temperature in January
Harleysville, PA
- Average high temperature in January: 35.2°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in January: 22.8°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in January
Harleysville, PA
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Harleysville, PA
- Average wind speed in January: 7.9mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
Harleysville, PA
- Average humidity in January: 77%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in January
Harleysville, PA
- Average rainfall in January: 0.87"
The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in January
Harleysville, PA
- Average rainfall days in January: 5.7 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is January (5.7 days).
Average snowfall in January
Harleysville, PA
- Average snowfall in January: 1.06"
The month with the highest snowfall is March (1.46").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Harleysville, PA
- Average snowfall days in January: 4.8 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Harleysville, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in January
Harleysville, PA
- Average sunshine days in January: 20.7 days
The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in January
Harleysville, PA
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (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
Harleysville, PA
- Average cloud cover in January: 47
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in January
Harleysville, PA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Harleysville, Pennsylvania, USA
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