January weather forecast
Harvey, LA

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Weather in January

January, the same as December, in Harvey, Louisiana, is another refreshing winter month, with an average temperature fluctuating between 48.6°F (9.2°C) and 60.4°F (15.8°C).

Temperature

The lowest temperatures are recorded in January, with averages reaching a high of 60.4°F (15.8°C) and a low of 48.6°F (9.2°C).

Humidity

In January, the average relative humidity is 74%.

Rainfall

In Harvey, in January, it is raining for 5.8 days, with typically 0.47" (12mm) of accumulated precipitation. Throughout the year, in Harvey, there are 112.1 rainfall days, and 9.37" (238mm) of precipitation is accumulated.

Snowfall

The only month with snowfall is January. January has the most snowfall days of the year. Snow falls for 0.1 days.

Daylight

In January, the average length of the day is 10h and 29min.
On the first day of January in Harvey, sunrise is at 6:55 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 5:36 pm CST.

Sunshine

The average sunshine in January in Harvey is 5.7h.

UV index

The average daily maximum UV index in January is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 4 during January translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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Frequently asked questions

What are the coldest months in Harvey?

January is the coldest month in Harvey, with the temperature often reaching an average high of 60.4°F (15.8°C) and an average low of 48.6°F (9.2°C).

What are the temperatures in Harvey in January?

In January, the average high-temperature and low-temperature in Harvey, Louisiana, are 60.4°F (15.8°C) and 48.6°F (9.2°C) respectively.

What is the average humidity in January in Harvey?

In January, the average relative humidity in Harvey is 74%.

How many days does it rain in January in Harvey?

In Harvey, during January, the rain falls for 5.8 days and regularly aggregates up to 0.47" (12mm) of precipitation.

When does it snow the most in Harvey?

January has the most snowfall days of the year. Snow falls for 0.1 days.

When does it start snowing in Harvey?

January is the first month it typically snows in Harvey. Throughout January, there are 0.1 snowfall days.

What is the average length of the day in January in Harvey?

The average day length in January in Harvey is 10h and 29min.

When is the sunrise / sunset in January in Harvey?

In January, on the first day of the month, sunrise is at 6:55 am and sunset at 5:11 pm. On the last day of the month, in Harvey, Louisiana, sunrise is at 6:50 am and sunset at 5:36 pm CST.

How many hours of sunshine does Harvey have in January?

In Harvey, Louisiana, the average sunshine duration in January is 5.7h.

How high is the UV index in January in Harvey?

In Harvey, Louisiana, the average daily maximum UV index in January is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Harvey, LA

Average temperature in January - Harvey, LA
  • Average high temperature in January: 60.4°F

The warmest months (with the highest average high temperature) are July and August (89.4°F).
The month with the lowest average high temperature is January (60.4°F).

  • Average low temperature in January: 48.6°F

The month with the highest average low temperature is August (79.5°F).
The coldest month (with the lowest average low temperature) is January (48.6°F).

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Average pressure in January
Harvey, LA

Average pressure in January - Harvey, LA
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).

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Average wind speed in January
Harvey, LA

Average wind speed in January - Harvey, LA
  • Average wind speed in January: 9.6mph

The windiest months (with the highest average wind speed) are February and April (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in January
Harvey, LA

Average humidity in January - Harvey, LA
  • Average humidity in January: 74%

The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in January
Harvey, LA

Average rainfall in January - Harvey, LA
  • Average rainfall in January: 0.47"

The wettest month (with the highest rainfall) is July (1.57").
The driest months (with the least rainfall) are March and April (0.43").

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Average rainfall days in January
Harvey, LA

Average rainfall days in January - Harvey, LA
  • Average rainfall days in January: 5.8 days

The month with the highest number of rainy days is August (17.2 days).
The month with the least rainy days is November (4.7 days).

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Average snowfall days in January
Harvey, LA

Average snowfall days in January - Harvey, LA
  • Average snowfall days in January: 0.1 days

The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in January /
Average sunshine in January
Harvey, LA

Average daylight in January / Average sunshine in January - Harvey, LA
  • Average daylight in January: 10h and 3min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in January: 5h and 4min

The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in January
Harvey, LA

Average sunshine days in January - Harvey, LA
  • Average sunshine days in January: 23.1 days

The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is August (8.9 days).

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Average UV index in January
Harvey, LA

Average UV index in January - Harvey, LA
  • Average UV index in January: 4

The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in January
Harvey, LA

Average cloud cover in January - Harvey, LA
  • Average cloud cover in January: 36

The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 24).

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Average visibility in January
Harvey, LA

Average visibility in January - Harvey, LA
  • 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).

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Harvey, Louisiana, USA

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