January weather forecastClaymont, DE
January
Weather in January
Claymont, Delaware ushers in frigid temperatures and an increased probability of snowfall in January. Highs in the vicinity of 37°F (2.8°C) and lows down to 25.3°F (-3.7°C) bring a chill to the air, accentuated by an average snowfall of 3.03" (77mm) spread across approximately 7 days. As a contrast to the many snow-filled days, there are also bright, crystal clear skies present for roughly 17 days of sunshine. Cold January winds cut through the city, blowing at an average speed of 8.6mph (13.8km/h) and reaching gusts up to 13.7mph (22km/h). Month sets the tone for the rest of winter, which is characterized by a blend of chilly days, snow scenes, and a fair amount of sunshine.Temperature
The lowest temperatures are recorded in January, with averages reaching a high of 37°F (2.8°C) and a low of 25.3°F (-3.7°C).Humidity
In January, the average relative humidity is 75%.Rainfall
The month with the least rainfall is January, when the rain falls for 9.3 days and typically collects 2.36" (60mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In January, in Claymont, it is snowing for 6.8 days. Throughout January, 3.03" (77mm) of snow is accumulated. In Claymont, during the entire year, snow falls for 21.9 days and aggregates up to 12.05" (306mm) of snow.Daylight
The average length of the day in January is 9h and 44min.On the first day of the month, sunrise is at 7:22 am and sunset at 4:47 pm. On the last day of January, sunrise is at 7:10 am and sunset at 5:19 pm EST.
Sunshine
In Claymont, the average sunshine in January is 5h.UV index
The months with the lowest UV index 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 unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 2 during January translates into the following directions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Claymont, DE
- Average high temperature in January: 37°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in January: 25.3°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 (25.3°F).
Average pressure in January
Claymont, DE
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Claymont, DE
- Average wind speed in January: 8.6mph
The windiest months (with the highest average wind speed) are January, February and March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in January
Claymont, DE
- Average humidity in January: 75%
The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in January
Claymont, DE
- Average rainfall in January: 2.36"
The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (2.36").
Average rainfall days in January
Claymont, DE
- Average rainfall days in January: 9.3 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in January
Claymont, DE
- Average snowfall in January: 3.03"
The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Claymont, DE
- 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
Claymont, DE
- Average daylight in January: 9h and 42min
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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in January
Claymont, DE
- Average sunshine days in January: 16.8 days
The month with the most sunshine days is November (18.6 days).
The months with the least sunshine days are May and July (9.8 days).
Average UV index in January
Claymont, 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
Claymont, DE
- Average cloud cover in January: 45
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in January
Claymont, 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).





