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
Merrian experiences its lowest average temperatures in January, reaching a peak of 32°F (0°C) and a minimum of 20.1°F (-6.6°C).Humidity
In January, the average relative humidity in Merrian, Pennsylvania, is 80%.Rainfall
In Merrian, during January, the rain falls for 5.8 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, there are 129.2 rainfall days, and 16.42" (417mm) of precipitation is accumulated.Snowfall
Months with snowfall in Merrian are January through May, October through December. In January, in Merrian, Pennsylvania, it is snowing for 8 days. Throughout January, 2.13" (54mm) of snow is accumulated. In Merrian, during the entire year, snow falls for 28.6 days and aggregates up to 9.37" (238mm) of snow.Daylight
In January, the average length of the day in Merrian is 9h and 39min.On the first day of January, sunrise is at 7:29 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:21 pm EST.
Sunshine
The average sunshine in January in Merrian is 4.2h.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 the ordinary person.Note: The UV index of 2 in January translates into these instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take note! UV radiation from the Sun can double in intensity 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 in Merrian?
How cold is January in Merrian?
What is the average humidity in January in Merrian?
How much does it rain in Merrian in January?
How much does it snow in Merrian in January?
What is the average length of the day in January in Merrian?
When are sunrise and sunset in January in Merrian?
How long on average sun shines in January in Merrian?
What are the months with the lowest UV index in Merrian?
How high is the UV index in January in Merrian?
Average temperature in January
Merrian, PA
- Average high temperature in January: 32°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in January: 20.1°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in January
Merrian, 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
Merrian, PA
- Average wind speed in January: 8mph
The windiest months (with the highest average wind speed) are March and April (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in January
Merrian, PA
- Average humidity in January: 80%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are March and April (77%).
Average rainfall in January
Merrian, PA
- Average rainfall in January: 1.06"
The wettest months (with the highest rainfall) are May and July (1.97").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in January
Merrian, PA
- Average rainfall days in January: 5.8 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in January
Merrian, PA
- Average snowfall in January: 2.13"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Merrian, PA
- Average snowfall days in January: 8 days
The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Merrian, PA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 4h and 1min
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 6min).
Average sunshine days in January
Merrian, PA
- Average sunshine days in January: 19.4 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is May (12.5 days).
Average UV index in January
Merrian, 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
Merrian, PA
- Average cloud cover in January: 54
The month with the most cloud cover is February (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in January
Merrian, PA
- Average visibility in January: 5mi
The months with the highest visibility are March, April, November and December (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and October (5mi).
Merrian, Pennsylvania, USA
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