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
With average high temperatures of 37.6°F (3.1°C) and lows of 25.3°F (-3.7°C), January is the coldest month.Humidity
In Delta, the average relative humidity in January is 75%.Rainfall
January is the month with the least rainfall. Rain falls for 9.1 days and accumulates 2.36" (60mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. In Delta, during January, snow falls for 6.8 days and regularly aggregates up to 2.8" (71mm) of snow. Throughout the year, there are 21.9 snowfall days, and 10.55" (268mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 44min.On the first day of January, sunrise is at 7:26 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:23 pm EST.
Sunshine
The average sunshine in January is 5h.UV index
The months with the lowest UV index in Delta are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 2 in January suggests the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
Is January cold?
What is the average humidity in January?
What is the driest month in Delta?
How many days does it rain in January?
How many days does it snow in January?
How many hours of daylight does Delta have in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
When is the lowest UV index in Delta?
What is the UV index intensity in January?
Average temperature in January
Delta, PA
- Average high temperature in January: 37.6°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 (37.6°F).
- Average low temperature in January: 25.3°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure in January
Delta, PA
- Average pressure in January: 30.1"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
Delta, PA
- Average wind speed in January: 8.9mph
The windiest month (with the highest average wind speed) is March (9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in January
Delta, PA
- Average humidity in January: 75%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall in January
Delta, PA
- Average rainfall in January: 2.36"
The wettest month (with the highest rainfall) is August (4.49").
The driest month (with the least rainfall) is January (2.36").
Average rainfall days in January
Delta, PA
- Average rainfall days in January: 9.1 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in January
Delta, PA
- Average snowfall in January: 2.8"
The month with the highest snowfall is March (3.62").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Delta, PA
- Average snowfall days in January: 6.8 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Delta, 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: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in January
Delta, PA
- Average sunshine days in January: 16.8 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (8.8 days).
Average UV index in January
Delta, 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, November and December (UV index 2).
Average cloud cover in January
Delta, PA
- Average cloud cover in January: 45
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in January
Delta, PA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Delta, Pennsylvania, USA
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