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 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 average temperatures reaching a high of 69.8°F (21°C) and a low of 52.7°F (11.5°C), is the coldest month.Humidity
In January, the average relative humidity in San Isidro is 61%.Rainfall
In San Isidro, Texas, in January, it is raining for 7.1 days, with typically 0.55" (14mm) of accumulated precipitation. In San Isidro, during the entire year, the rain falls for 98.5 days and collects up to 13.11" (333mm) of precipitation.Snowfall
January and February are months with snowfall. The months with the most snowfall days are January and February, with an average of 0.1 snowfall days.Daylight
The average length of the day in January is 10h and 41min.On the first day of January, sunrise is at 7:22 am and sunset at 5:52 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 6:15 pm CST.
Sunshine
In January, the average sunshine is 7.2h.UV index
The average daily maximum UV index in January is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In January, the maximum UV index of 5 suggests these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Always opt for UVA and UVB-resistant sunglasses on radiant days. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
What is the average January temperature?
What is the average humidity in January in San Isidro?
How many days does it rain in January?
What is the snowiest month?
When does it start snowing?
How many hours of daylight does San Isidro have in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
What is the UV index reading in January in San Isidro?
Average temperature in January
San Isidro, TX
- Average high temperature in January: 69.8°F
The warmest month (with the highest average high temperature) is August (100°F).
The month with the lowest average high temperature is January (69.8°F).
- Average low temperature in January: 52.7°F
The month with the highest average low temperature is August (80.1°F).
The coldest month (with the lowest average low temperature) is January (52.7°F).
Average pressure in January
San Isidro, TX
- Average pressure in January: 30.12"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are May and June (29.87"Hg).
Average wind speed in January
San Isidro, TX
- Average wind speed in January: 9.3mph
The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is December (9.2mph).
Average humidity in January
San Isidro, TX
- Average humidity in January: 61%
The month with the highest relative humidity is December (65%).
The month with the lowest relative humidity is August (53%).
Average rainfall in January
San Isidro, TX
- Average rainfall in January: 0.55"
The wettest month (with the highest rainfall) is September (2.56").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in January
San Isidro, TX
- Average rainfall days in January: 7.1 days
The month with the highest number of rainy days is September (15.3 days).
The month with the least rainy days is February (5.8 days).
Average snowfall days in January
San Isidro, TX
- Average snowfall days in January: 0.1 days
The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in January /
Average sunshine in January
San Isidro, TX
- Average daylight in January: 10h and 4min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in January: 7h and 1min
The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in January
San Isidro, TX
- Average sunshine days in January: 21.7 days
The months with the most sunshine days are July and August (22.6 days).
The month with the least sunshine days is September (12.9 days).
Average UV index in January
San Isidro, TX
- Average UV index in January: 5
The months with the highest UV index are July and August (UV index 8).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in January
San Isidro, TX
- Average cloud cover in January: 33
The month with the most cloud cover is December (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in January
San Isidro, 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).
San Isidro, Texas, USA
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