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 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
The average high-temperature during January registers at a pleasant 69.1°F (20.6°C), maintaining a close resemblance to the previous month. Holtville, during January nights, observes an average temperature of 50°F (10°C).Humidity
The average relative humidity in January is 38%.Rainfall
In Holtville, in January, during 2.4 rainfall days, 0.28" (7mm) of precipitation is typically accumulated. In Holtville, California, during the entire year, the rain falls for 29.5 days and collects up to 2.99" (76mm) of precipitation.Daylight
In Holtville, the average length of the day in January is 10h and 17min.On the first day of January in Holtville, California, sunrise is at 6:43 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 5:12 pm PST.
Sunshine
In Holtville, the average sunshine in January is 7.2h.UV index
In Holtville, the average daily maximum UV index in January is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 5 during January leads to these instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average January temperature in Holtville?
What is the average humidity in January in Holtville?
How much does it rain in Holtville in January?
How many hours of daylight does Holtville have in January?
When is the sunrise / sunset in January in Holtville?
How many hours of sunshine does Holtville have in January?
What is the UV index intensity in January in Holtville?
Average temperature in January
Holtville, CA
- Average high temperature in January: 69.1°F
The warmest month (with the highest average high temperature) is July (107.2°F).
The month with the lowest average high temperature is December (67.3°F).
- Average low temperature in January: 50°F
The month with the highest average low temperature is August (85.6°F).
The coldest month (with the lowest average low temperature) is January (50°F).
Average pressure in January
Holtville, CA
- Average pressure in January: 30.08"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.77"Hg).
Average wind speed in January
Holtville, CA
- Average wind speed in January: 5.5mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest months (with the lowest average wind speed) are January and August (5.5mph).
Average humidity in January
Holtville, CA
- Average humidity in January: 38%
The month with the highest relative humidity is December (39%).
The month with the lowest relative humidity is June (21%).
Average rainfall in January
Holtville, CA
- Average rainfall in January: 0.28"
The wettest month (with the highest rainfall) is July (0.55").
The driest month (with the least rainfall) is May (0.04").
Average rainfall days in January
Holtville, CA
- Average rainfall days in January: 2.4 days
The month with the highest number of rainy days is July (6.3 days).
The month with the least rainy days is May (0.9 days).
Average daylight in January /
Average sunshine in January
Holtville, CA
- Average daylight in January: 10h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January: 7h and 1min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in January
Holtville, CA
- Average sunshine days in January: 28 days
The month with the most sunshine days is May (29.9 days).
The month with the least sunshine days is July (21.8 days).
Average UV index in January
Holtville, CA
- Average UV index in January: 5
The months with the highest UV index are July and August (UV index 9).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in January
Holtville, CA
- Average cloud cover in January: 14
The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in January
Holtville, CA
- 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).
Holtville, California, USA
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