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 61°F (16.1°C) to a low of 45°F (7.2°C).Humidity
In Altair, the average relative humidity in January is 73%.Rainfall
The months with the least rainfall in Altair are January and February Rain falls for 10.3 days and accumulates 1.46" (37mm) of rain.Snowfall
January, February and December are months with snowfall. The months with the most snowfall are January and December, with an average 0.08" (2mm) of accumulated snow.Daylight
The average length of the day in January is 10h and 30min.On the first day of the month, sunrise is at 7:20 am and sunset at 5:37 pm. On the last day of January, sunrise is at 7:15 am and sunset at 6:02 pm CST.
Sunshine
In January, the average sunshine in Altair is 5.5h.UV index
In Altair, the average daily maximum UV index in January is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 4 during January leads to these advisories:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
What is the temperature in January?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
When does it snow the most?
How much does it snow in January?
How many hours of daylight does Altair have in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
What is the UV index reading in January?
Average temperature in January
Altair, TX
- Average high temperature in January: 61°F
The warmest month (with the highest average high temperature) is August (94.6°F).
The month with the lowest average high temperature is January (61°F).
- Average low temperature in January: 45°F
The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (45°F).
Average pressure in January
Altair, TX
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Altair, TX
- Average wind speed in January: 8.1mph
The windiest month (with the highest average wind speed) is April (8.7mph).
The calmest month (with the lowest average wind speed) is September (5.8mph).
Average humidity in January
Altair, TX
- Average humidity in January: 73%
The months with the highest relative humidity are February, March, May and June (78%).
The month with the lowest relative humidity is August (71%).
Average rainfall in January
Altair, TX
- Average rainfall in January: 1.46"
The wettest month (with the highest rainfall) is May (4.13").
The driest months (with the least rainfall) are January and February (1.46").
Average rainfall days in January
Altair, TX
- Average rainfall days in January: 10.3 days
The month with the highest number of rainy days is September (19 days).
The month with the least rainy days is January (10.3 days).
Average snowfall in January
Altair, TX
- Average snowfall in January: 0.08"
The months with the highest snowfall are January and December (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Altair, TX
- Average snowfall days in January: 0.3 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in January /
Average sunshine in January
Altair, TX
- 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 3min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in January
Altair, TX
- Average sunshine days in January: 19.4 days
The month with the most sunshine days is January (19.4 days).
The month with the least sunshine days is September (8.8 days).
Average UV index in January
Altair, TX
- Average UV index in January: 4
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in January
Altair, TX
- Average cloud cover in January: 40
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in January
Altair, TX
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, August, September, October, November and December (6mi).
The months with the lowest visibility are May, June and July (5mi).
Altair, Texas, USA
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