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
In Castroville, the month of January registers the lowest temperatures, averaging 61.3°F (16.3°C) at the peak and 43.3°F (6.3°C) at the lowest.Humidity
In January, the average relative humidity is 63%.Rainfall
In Castroville, in January, during 8.3 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. Throughout the year, there are 138.8 rainfall days, and 19.76" (502mm) of precipitation is accumulated.Snowfall
Months with snowfall are January and February. January is the month with the most snowfall. Snow falls for 0.4 days and accumulates 0.12" (3mm) of snow.Daylight
In Castroville, the average length of the day in January is 10h and 31min.On the first day of January, sunrise is at 7:29 am and sunset at 5:48 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 6:12 pm CST.
Sunshine
In Castroville, the average sunshine in January is 6.5h.UV index
In January, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during January translates into these guidelines:
Act with care - The need to guard against sun damage is communicated. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. 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 are the coldest months?
What are the temperatures in January?
What is the average humidity in January?
How much does it rain in January?
What is the snowiest month?
When does it start to snow?
How many hours of daylight does Castroville have in January?
When are sunrise and sunset in January?
How long on average sun shines in January in Castroville?
What is the UV index intensity in January?
Average temperature in January
Castroville, TX
- Average high temperature in January: 61.3°F
The warmest month (with the highest average high temperature) is August (95.7°F).
The month with the lowest average high temperature is January (61.3°F).
- Average low temperature in January: 43.3°F
The month with the highest average low temperature is August (74.3°F).
The coldest month (with the lowest average low temperature) is January (43.3°F).
Average pressure in January
Castroville, TX
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are May and June (29.89"Hg).
Average wind speed in January
Castroville, TX
- Average wind speed in January: 7.8mph
The windiest months (with the highest average wind speed) are April and May (9.1mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).
Average humidity in January
Castroville, TX
- Average humidity in January: 63%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (58%).
Average rainfall in January
Castroville, TX
- Average rainfall in January: 0.94"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in January
Castroville, TX
- Average rainfall days in January: 8.3 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in January
Castroville, TX
- Average snowfall in January: 0.12"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in January
Castroville, TX
- Average snowfall days in January: 0.4 days
The months with the highest number of snowfall days are January and February (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Castroville, 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: 6h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are November and December (Average sunshine: 5h and 18min).
Average sunshine days in January
Castroville, TX
- Average sunshine days in January: 20.7 days
The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in January
Castroville, 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
Castroville, TX
- Average cloud cover in January: 36
The months with the most cloud cover are March and May (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in January
Castroville, 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).
Castroville, Texas, USA
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