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
January is the month that records the lowest temperatures, with averages ranging from a high of 40.6°F (4.8°C) to a low of 29.7°F (-1.3°C).Humidity
January and November, with an average relative humidity of 74%, are the least humid months.Rainfall
January is the month with the least rainfall in Houston. Rain falls for 8.4 days and accumulates 1.5" (38mm) of precipitation.Snowfall
Months with snowfall are January through March, May, November and December. January is the month with the most snowfall in Houston, Delaware. Snow falls for 3.3 days and accumulates 1.22" (31mm) of snow.Daylight
In January, the average length of the day in Houston is 9h and 49min.On the first day of January in Houston, sunrise is at 7:20 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:21 pm EST.
Sunshine
In Houston, Delaware, the average sunshine in January is 5.4h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 2 during January translates into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What is the coldest month in Houston?
Is January cold in Houston?
What are the least humid months in Houston?
What is the average humidity in January in Houston?
What is the driest month in Houston?
How much does it rain in Houston in January?
When does it snow the most in Houston?
How many days does it snow in January in Houston?
What is the average length of the day in January in Houston?
What time are sunrise and sunset in January in Houston?
How long on average sun shines in January in Houston?
What are the months with the lowest UV index in Houston?
How high is the UV index in January in Houston?
Average temperature in January
Houston, DE
- Average high temperature in January: 40.6°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in January: 29.7°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in January
Houston, 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
Houston, DE
- Average wind speed in January: 10.3mph
The windiest month (with the highest average wind speed) is February (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in January
Houston, DE
- Average humidity in January: 74%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in January
Houston, DE
- Average rainfall in January: 1.5"
The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days in January
Houston, DE
- Average rainfall days in January: 8.4 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in January
Houston, DE
- Average snowfall in January: 1.22"
The month with the highest snowfall is January (1.22").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in January
Houston, DE
- Average snowfall days in January: 3.3 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Houston, 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 30min).
- Average sunshine in January: 5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in January
Houston, DE
- Average sunshine days in January: 19.6 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in January
Houston, 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 and December (UV index 2).
Average cloud cover in January
Houston, DE
- Average cloud cover in January: 42
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in January
Houston, 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).
Houston, Delaware, USA
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