January weather forecastDelaware City, DE
January
Weather in January
January is the coldest month of the year in Delaware City, kicking off with typical winter conditions. Despite it being the start of the year, those looking to enjoy outdoor activities should be prepared for the cold. The average high temperature reaches 38.3°F (3.5°C), while the low can drop to 26.8°F (-2.9°C). Daylight hours are shortest as expected during this period, but the city is not completely devoid of sunshine. Although a fair share of rainy and snowy days dot the month, the weather does have its fair share of sunny spells.Temperature
Delaware City's temperature records reveal January as the coldest month, marked by average highs of 38.3°F (3.5°C) and lows of 26.8°F (-2.9°C).Humidity
In Delaware City, the average relative humidity in January is 74%.Rainfall
The month with the least rainfall is January, when the rain falls for 7.8 days and typically collects 1.54" (39mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. The month with the most snowfall is January, when snow falls for 4.3 days and typically aggregates up to 1.65" (42mm) of snow.Ocean temperature
In Delaware City, the average seawater temperature in January is 42.4°F (5.8°C).Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.
Daylight
In Delaware City, the average length of the day in January is 9h and 45min.On the first day of the month, sunrise is at 7:22 am and sunset at 4:48 pm. On the last day of January, in Delaware City, sunrise is at 7:10 am and sunset at 5:20 pm EST.
Sunshine
In Delaware City, the average sunshine in January is 5.2h.UV index
The months with the lowest UV index in Delaware City are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: During January, 2 as the daily maximum UV index converts into the following advice:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 48min
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 12min
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).
