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
December's transformation into January witnesses an average high-temperature of a still refreshing 56.8°F (13.8°C), noting a minor change from the preceding month. Throughout January, Pacheco records an average temperature of 42.3°F (5.7°C) at night.Humidity
January and March, with an average relative humidity of 73%, are the most humid months.Rainfall
In Pacheco, during January, the rain falls for 6.5 days and regularly aggregates up to 0.67" (17mm) of precipitation. Throughout the year, there are 49.3 rainfall days, and 3.82" (97mm) of precipitation is accumulated.Daylight
In Pacheco, the average length of the day in January is 9h and 53min.On the first day of the month, sunrise is at 7:24 am and sunset at 4:59 pm. On the last day of January, sunrise is at 7:13 am and sunset at 5:29 pm PST.
Sunshine
In January, the average sunshine is 5.9h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In January, the UV index of 3 transforms into the following advice:
Take precautions - Protection against sunburn is recommended. Avoiding the Sun during its peak radiation time around midday is a healthy practice. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in January?
What are the most humid months?
What is the average humidity in January?
How much does it rain in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Pacheco, CA
- Average high temperature in January: 56.8°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in January: 42.3°F
The month with the highest average low temperature is September (57.4°F).
The coldest month (with the lowest average low temperature) is January (42.3°F).
Average pressure in January
Pacheco, CA
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Pacheco, CA
- Average wind speed in January: 4.7mph
The windiest month (with the highest average wind speed) is May (7.6mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).
Average humidity in January
Pacheco, CA
- Average humidity in January: 73%
The months with the highest relative humidity are January and March (73%).
The month with the lowest relative humidity is September (56%).
Average rainfall in January
Pacheco, CA
- Average rainfall in January: 0.67"
The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days in January
Pacheco, CA
- Average rainfall days in January: 6.5 days
The month with the highest number of rainy days is March (9.8 days).
The month with the least rainy days is August (0.5 days).
Average daylight in January /
Average sunshine in January
Pacheco, CA
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January: 5h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in January
Pacheco, CA
- Average sunshine days in January: 23.3 days
The month with the most sunshine days is July (29.5 days).
The month with the least sunshine days is March (20 days).
Average UV index in January
Pacheco, CA
- Average UV index in January: 3
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in January
Pacheco, CA
- Average cloud cover in January: 35
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in January
Pacheco, 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).
Pacheco, California, USA
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