Temperatures in January
It's cool to moderate in January in Walnut Creek with an average temperature of 16°C. Temperatures this month range from a low of 14°C to a high of 19°C. At night, you can expect temperatures between 4°C and 10°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Walnut Creek in January. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of January
The month of January starts in Walnut Creek with cool temperatures, averaging around 15°C during the day and nights close to 7°C. Plenty of days with a chance of precipitation.
Mid-January
By mid-January, the average daytime temperature rises to around 17°C, with nights close to 7°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
End of January
By the end of January, the average daytime temperature in Walnut Creek will be around 17°C, with nights close to 8°C. A shower might show up, but overall the weather will be dry and sunny.
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Precipitation in January
In January, there is an average of 132 mm of precipitation, spread over 8 days. The wind speed is around 3 Bft, mostly coming from the Southeast.
The average precipitation chance is 25% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in January for Walnut Creek. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Walnut Creek in January |
London | ||
|---|---|---|---|
 Average Temperature |
16°C | 8°C | |
 High Temp |
19°C | 9°C | |
| Low Temp |
14°C | 6°C | |
 Total Precipitation |
132 mm | 58 mm | |
| Rainy Days |
8 days | 9 days | |
December
UV index
The UV index is a maximum of 4 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is January a good time to visit Walnut Creek?
Looking for sun and warm weather? Then January isn’t the best time to be in Walnut Creek. The temperature is too low this month for a warm stay.
Temperature records for Walnut Creek in January
With 26°C, Walnut Creek hit the highest temperature in the last 10 years in January 2021. The lowest daytime temperature in this month was 8°C in 2023. The extreme night temperatures ranged from a low of -2°C to a high of 14°C.
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Daily Temperature in January in Walnut Creek
This chart shows the average daily temperatures, both day and night, for each day in January in Walnut Creek, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in January in Walnut Creek
The chart below shows the average daily precipitation in January for Walnut Creek, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for January, you can expect around 8 days of rain in Walnut Creek.
Daily UV Index in January in Walnut Creek
This chart shows the average daily UV index in January in Walnut Creek, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in January in Walnut Creek Over the Years
This chart shows the average temperature in January in Walnut Creek, measured in degrees Celsius, over the past years.
Total Precipitation in January in Walnut Creek Over the Years
This chart shows the average precipitation in January in Walnut Creek, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in January for Walnut Creek
Click on a specific day in January for detailed info on the typical weather on that day in Walnut Creek. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in January in Walnut Creek
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Average Weather in Walnut Creek by Month
Click on a month below to see detailed weather info for Walnut Creek. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Walnut Creek for all months at once
