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, with an average high of 55.8°F (13.2°C) and a low of 39°F (3.9°C), signifies the coldest month of the year.Humidity
In January, the average relative humidity is 64%.Rainfall
In January, the rain falls for 6.1 days. Throughout January, 1.73" (44mm) of precipitation is accumulated. In Rio Vista, during the entire year, the rain falls for 135 days and collects up to 29.92" (760mm) of precipitation.Snowfall
In Rio Vista, snow does not fall in January, April through October and December.Daylight
In January, the average length of the day is 10h and 19min.On the first day of the month, sunrise is at 7:30 am and sunset at 5:35 pm. On the last day of January, sunrise is at 7:24 am and sunset at 6:01 pm CST.
Sunshine
In January, the average sunshine is 6.1h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In January, the maximum UV index of 3 transforms into these recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
What is the temperature in January?
What is the average humidity in January in Rio Vista?
How much does it rain in January?
When it does not snow?
Does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
How many hours of sunshine does Rio Vista have in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Rio Vista, TX
- Average high temperature in January: 55.8°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (55.8°F).
- Average low temperature in January: 39°F
The month with the highest average low temperature is August (75.6°F).
The coldest month (with the lowest average low temperature) is January (39°F).
Average pressure in January
Rio Vista, 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 (29.9"Hg).
Average wind speed in January
Rio Vista, TX
- Average wind speed in January: 9.6mph
The windiest months (with the highest average wind speed) are March and April (10.6mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity in January
Rio Vista, TX
- Average humidity in January: 64%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (57%).
Average rainfall in January
Rio Vista, TX
- Average rainfall in January: 1.73"
The wettest month (with the highest rainfall) is October (4.21").
The driest month (with the least rainfall) is February (1.5").
Average rainfall days in January
Rio Vista, TX
- Average rainfall days in January: 6.1 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in January
Rio Vista, TX
- Average snowfall in January: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are January, April, May, June, July, August, September, October and December (0").
Average snowfall days in January
Rio Vista, TX
- Average snowfall days in January: 0.2 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Rio Vista, TX
- Average daylight in January: 10h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in January: 6h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in January
Rio Vista, TX
- Average sunshine days in January: 23.8 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is May (13.4 days).
Average UV index in January
Rio Vista, TX
- Average UV index in January: 3
The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in January
Rio Vista, TX
- Average cloud cover in January: 30
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in January
Rio Vista, TX
- 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).
Rio Vista, Texas, USA
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