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
As January takes hold, the average high-temperature is a still enjoyable 64.8°F (18.2°C), nearly mirroring that of the previous month. Throughout the nights in January, an average low-temperature of 47.1°F (8.4°C) is noted.Humidity
In Sierra Madre, the average relative humidity in January is 51%.Rainfall
In Sierra Madre, in January, during 5.3 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Sierra Madre, during the entire year, the rain falls for 48.7 days and collects up to 7.48" (190mm) of precipitation.Daylight
In Sierra Madre, the average length of the day in January 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
January, February and December, with an average of 6.9h of sunshine, are months with the least sunshine in Sierra Madre.UV index
In Sierra Madre, the average daily maximum UV index in January is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In January, the average maximum UV index of 4 translates into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are January temperatures in Sierra Madre?
What is the average humidity in January?
How many days does it rain in January?
How many hours of daylight does Sierra Madre have in January?
When are sunrise and sunset in January?
What are the months with the least sunshine?
How long on average sun shines in January?
How high is the UV index in January?
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).
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).
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).
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%).
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").
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).
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).
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).
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).
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).
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).
Sierra Madre, California, USA
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