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 sea temperature 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 is the coldest month of the year, registering average temperatures as high as 38.3°F (3.5°C) and as low as 26.8°F (-2.9°C).Humidity
In Delaware City, the average relative humidity in January is 74%.Rainfall
January is the month with the least rainfall. Rain falls for 7.8 days and accumulates 1.54" (39mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. January is the month with the most snowfall in Delaware City. Snow falls for 4.3 days and accumulates 1.65" (42mm) of snow.Ocean temperature
In Delaware City, in January, the average water temperature is 42.4°F (5.8°C).Note: Swimming in 42.4°F (5.8°C) feels unbearing at 55.4°F (13°C) and can be life-risking below 50°F (10°C), causing breathing issues and cold shock, depending on a person's capacity.
Daylight
The average length of the day in January is 9h and 45min.On the first day of January in Delaware City, Delaware, sunrise is at 7:22 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:20 pm EST.
Sunshine
The average sunshine in January is 5.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Delaware City. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In January, the maximum UV index of 2 transforms into these recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What time of the year is the coldest in Delaware City?
How cold does it get in Delaware City in January?
What is the average humidity in January in Delaware City?
What is the driest month in Delaware City?
How many days does it rain in January in Delaware City?
What is the snowiest month in Delaware City?
How much does it snow in Delaware City in January?
How cold is the water in January in Delaware City?
How many hours of daylight does Delaware City have in January?
When are sunrise and sunset in January in Delaware City?
How many hours of sunshine does Delaware City have in January?
What are the months with the lowest UV index in Delaware City?
What is the UV index intensity in January in Delaware City?
Average temperature in January
Delaware City, DE
- Average high temperature in January: 38.3°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in January: 26.8°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in January
Delaware City, DE
- 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
Delaware City, DE
- Average wind speed in January: 8.8mph
The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in January
Delaware City, DE
- Average humidity in January: 74%
The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in January
Delaware City, DE
- Average rainfall in January: 1.54"
The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is January (1.54").
Average rainfall days in January
Delaware City, DE
- Average rainfall days in January: 7.8 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in January
Delaware City, DE
- Average snowfall in January: 1.65"
The month with the highest snowfall is January (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Delaware City, DE
- Average snowfall days in January: 4.3 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in January
Delaware City, DE
- Average sea temperature in January: 42.4°F
The best month for swimming (with the highest average sea temperature) is August (76.3°F).
The coldest month (with the lowest average sea temperature) is February (40.9°F).
Average daylight in January /
Average sunshine in January
Delaware City, DE
- Average daylight in January: 9h and 5min
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 1min
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
Delaware City, DE
- Average sunshine days in January: 19.3 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in January
Delaware City, DE
- 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
Delaware City, DE
- Average cloud cover in January: 44
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in January
Delaware City, DE
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Delaware City, Delaware, USA
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