January weather forecast
Duncans Mills, CA

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Weather in January

January, the same as December, in Duncans Mills, California, is another refreshing winter month, with an average temperature ranging between min 42.3°F (5.7°C) and max 57.7°F (14.3°C).

Temperature

The advent of January brings an average high-temperature of a still moderate 57.7°F (14.3°C), exhibiting minor difference from the previous month. Duncans Mills's nighttime temperature in January falls to an average of 42.3°F (5.7°C).

Humidity

The average relative humidity in January is 75%.

Rainfall

In Duncans Mills, during January, the rain falls for 8.1 days and regularly aggregates up to 1.97" (50mm) of precipitation. In Duncans Mills, during the entire year, the rain falls for 60.1 days and collects up to 12.87" (327mm) of precipitation.

Daylight

In January, the average length of the day is 9h and 51min.
On the first day of January, sunrise is at 7:29 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:32 pm PST.

Sunshine

The average sunshine in January is 5.6h.

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 value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 3 in January leads to these recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in January in Duncans Mills?

The average high-temperature, in January, in Duncans Mills, is 57.7°F (14.3°C), while the average low-temperature is 42.3°F (5.7°C).

What is the average humidity in January?

In January, the average relative humidity is 75%.

How much does it rain in January?

In Duncans Mills, during January, the rain falls for 8.1 days and regularly aggregates up to 1.97" (50mm) of precipitation.

How many hours of daylight does Duncans Mills have in January?

The average day length in January in Duncans Mills is 9h and 51min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:29 am and sunset at 5:01 pm. On the last day of the month, in Duncans Mills, sunrise is at 7:18 am and sunset at 5:32 pm PST.

How long on average sun shines in January?

In January, the average sunshine duration is 5.6h.

When is the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.

How high is the UV index in January?

In January, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Duncans Mills, CA

Average temperature in January - Duncans Mills, CA
  • Average high temperature in January: 57.7°F

The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (56.3°F).

  • Average low temperature in January: 42.3°F

The months with the highest average low temperature are August and September (53.4°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).

Average pressure in January
Duncans Mills, CA

Average pressure in January - Duncans Mills, CA
  • Average pressure in January: 30.13"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).

Average wind speed in January
Duncans Mills, CA

Average wind speed in January - Duncans Mills, CA
  • Average wind speed in January: 5.3mph

The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest month (with the lowest average wind speed) is November (5mph).

Average humidity in January
Duncans Mills, CA

Average humidity in January - Duncans Mills, CA
  • Average humidity in January: 75%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (62%).

Average rainfall in January
Duncans Mills, CA

Average rainfall in January - Duncans Mills, CA
  • Average rainfall in January: 1.97"

The wettest month (with the highest rainfall) is February (3.27").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in January
Duncans Mills, CA

Average rainfall days in January - Duncans Mills, CA
  • Average rainfall days in January: 8.1 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.9 days).

Average daylight in January /
Average sunshine in January
Duncans Mills, CA

Average daylight in January / Average sunshine in January - Duncans Mills, 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 30min).

  • Average sunshine in January: 5h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in January
Duncans Mills, CA

Average sunshine days in January - Duncans Mills, CA
  • Average sunshine days in January: 22 days

The month with the most sunshine days is July (28.9 days).
The month with the least sunshine days is February (19.9 days).

Average UV index in January
Duncans Mills, CA

Average UV index in January - Duncans Mills, CA
  • Average UV index in January: 3

The months with the highest UV index are June, July 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
Duncans Mills, CA

Average cloud cover in January - Duncans Mills, CA
  • Average cloud cover in January: 38

The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 11).

Average visibility in January
Duncans Mills, CA

Average visibility in January - Duncans Mills, 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).

Duncans Mills, California, USA

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