January weather forecast
Sierra Madre, CA

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Weather in January

January, like December, in Sierra Madre, California, is another enjoyable winter month, with temperature in the range of an average low of 47.1°F (8.4°C) and an average high of 64.8°F (18.2°C).

Temperature

Sierra Madre sees the arrival of January with an average high-temperature of a still enjoyable 64.8°F (18.2°C), indicating a subtle variation from December. January nights observe an average temperature dip to a frosty 47.1°F (8.4°C).

Humidity

In Sierra Madre, the average relative humidity in January is 51%.

Rainfall

In Sierra Madre, California, in January, during 5.3 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. Throughout the year, there are 48.7 rainfall days, and 7.48" (190mm) of precipitation is accumulated.

Daylight

In January, the average length of the day in Sierra Madre, California, is 10h and 11min.
On the first day of the month, sunrise is at 6:57 am and sunset at 4:53 pm. On the last day of January, sunrise is at 6:50 am and sunset at 5:21 pm PST.

Sunshine

The months with the least sunshine are January, February and December, with an average of 6.9h of sunshine.

UV index

The average daily maximum UV index in January in Sierra Madre is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high UV index of 4 in January translates into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The solar radiation around mid-day is intense; avoid the Sun and stay safe. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
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Frequently asked questions

What are the temperatures in Sierra Madre in January?

The average high-temperature and low-temperature during January are 64.8°F (18.2°C) and 47.1°F (8.4°C) respectively.

What is the average humidity in January in Sierra Madre?

In Sierra Madre, California, the average relative humidity in January is 51%.

How much does it rain in Sierra Madre in January?

In Sierra Madre, in January, it is raining for 5.3 days, with typically 1.18" (30mm) of accumulated precipitation.

What is the average length of the day in January in Sierra Madre?

In January, the average day length is 10h and 11min.

When are sunrise and sunset in January in Sierra Madre?

On the first day of January in Sierra Madre, sunrise is at 6:57 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 5:21 pm PST.

What are the months with the least sunshine in Sierra Madre?

January, February and December, with an average of 6.9h of sunshine, are months with the least sunshine.

How many hours of sunshine does Sierra Madre have in January?

The average sunshine duration in January is 6.9h.

What is the UV index intensity in January in Sierra Madre?

In Sierra Madre, the average daily maximum UV index in January is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to 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
Sierra Madre, CA

Average temperature in January - Sierra Madre, CA
  • Average high temperature in January: 64.8°F

The warmest month (with the highest average high temperature) is August (88.2°F).
The month with the lowest average high temperature is December (62.1°F).

  • Average low temperature in January: 47.1°F

The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is December (46.2°F).

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Average pressure in January
Sierra Madre, CA

Average pressure in January - Sierra Madre, CA
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in January
Sierra Madre, CA

Average wind speed in January - Sierra Madre, CA
  • Average wind speed in January: 5.4mph

The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).

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Average humidity in January
Sierra Madre, CA

Average humidity in January - Sierra Madre, CA
  • Average humidity in January: 51%

The months with the highest relative humidity are March, May and June (56%).
The month with the lowest relative humidity is November (46%).

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Average rainfall in January
Sierra Madre, CA

Average rainfall in January - Sierra Madre, CA
  • Average rainfall in January: 1.18"

The wettest month (with the highest rainfall) is December (1.54").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in January
Sierra Madre, CA

Average rainfall days in January - Sierra Madre, CA
  • Average rainfall days in January: 5.3 days

The month with the highest number of rainy days is March (6.5 days).
The month with the least rainy days is June (1.3 days).

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Average daylight in January /
Average sunshine in January
Sierra Madre, CA

Average daylight in January / Average sunshine in January - Sierra Madre, CA
  • Average daylight in January: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in January: 6h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).

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Average sunshine days in January
Sierra Madre, CA

Average sunshine days in January - Sierra Madre, CA
  • Average sunshine days in January: 25.1 days

The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is February (22 days).

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Average UV index in January
Sierra Madre, CA

Average UV index in January - Sierra Madre, CA
  • Average UV index in January: 4

The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in January
Sierra Madre, CA

Average cloud cover in January - Sierra Madre, CA
  • Average cloud cover in January: 20

The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in January
Sierra Madre, CA

Average visibility in January - Sierra Madre, 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).

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Sierra Madre, California, USA

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