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 stands out as Clay Hill's coldest month, with temperatures ranging between an average high of 35.4°F (1.9°C) and a low of 22.5°F (-5.3°C).Humidity
In Clay Hill, the average relative humidity in January is 76%.Rainfall
January is the month with the least rainfall. Rain falls for 9.2 days and accumulates 1.85" (47mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. January is the month with the most snowfall. Snow falls for 8.1 days and accumulates 4.53" (115mm) of snow.Daylight
In January, the average length of the day is 9h and 44min.On the first day of January, sunrise is at 7:31 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:28 pm EST.
Sunshine
In January, the average sunshine is 4.7h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Clay Hill, Pennsylvania. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: During January, 2 as the daily maximum UV index converts into the following advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold is January?
What is the average humidity in January in Clay Hill?
What is the driest month?
How much does it rain in January?
When does it snow the most?
How many days does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January in Clay Hill?
How many hours of sunshine does Clay Hill have in January?
When is the lowest UV index?
How high is the UV index in January in Clay Hill?
Average temperature in January
Clay Hill, PA
- Average high temperature in January: 35.4°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in January: 22.5°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in January
Clay Hill, 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
Clay Hill, PA
- Average wind speed in January: 7.7mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in January
Clay Hill, PA
- Average humidity in January: 76%
The months with the highest relative humidity are February, May, October and December (79%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in January
Clay Hill, PA
- Average rainfall in January: 1.85"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in January
Clay Hill, PA
- Average rainfall days in January: 9.2 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is November (9 days).
Average snowfall in January
Clay Hill, PA
- Average snowfall in January: 4.53"
The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Clay Hill, PA
- Average snowfall days in January: 8.1 days
The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Clay Hill, PA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 54min).
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
Clay Hill, PA
- Average sunshine days in January: 16.4 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in January
Clay Hill, PA
- Average UV index in January: 2
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Clay Hill, PA
- Average cloud cover in January: 50
The months with the most cloud cover are January, February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in January
Clay Hill, PA
- Average visibility in January: 5mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).
Clay Hill, Pennsylvania, USA
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