Contents
- Weather in March
- Frequently asked questions
- Average temperature in March
- Average pressure in March
- Average wind speed in March
- Average humidity in March
- Average rainfall in March
- Average rainfall days in March
- Average daylight in March
- Average sunshine in March
- Average sunshine days in March
- Average UV index in March
- Average cloud cover in March
- Average visibility in March
Weather in March
Temperature
March's commencement is accompanied by an average high-temperature of a still enjoyable 66°F (18.9°C), diverging marginally from February's 62.4°F (16.9°C). The month of March records an average low-temperature of 46.9°F (8.3°C).Humidity
March, May and June, with an average relative humidity of 56%, are the most humid months.Rainfall
In Altadena, in March, it is raining for 7.5 days, with typically 1.1" (28mm) of accumulated precipitation. In Altadena, California, during the entire year, the rain falls for 52 days and collects up to 8.82" (224mm) of precipitation.Daylight
In March, the average length of the day is 12h and 0min.On the first day of the month, sunrise is at 6:20 am and sunset at 5:49 pm PST. On the last day of March, sunrise is at 6:39 am and sunset at 7:13 pm PDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from PDT to PST.
Sunshine
In Altadena, the average sunshine in March is 8.9h.UV index
In March, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In March, the maximum UV index of 4 suggests these recommendations:
Make use of precautions - It is urged to ward off sun damage. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average March temperature?
What are the most humid months?
What is the average humidity in March?
How many days does it rain in March?
How many hours of daylight does Altadena have in March?
When is the sunrise / sunset in March?
When does Daylight Saving Time (DST) start in March?
How many hours of sunshine does Altadena have in March?
What is the UV index reading in March?
Average temperature in March
Altadena, CA
- Average high temperature in March: 66°F
The warmest month (with the highest average high temperature) is August (86.2°F).
The month with the lowest average high temperature is December (61°F).
- Average low temperature in March: 46.9°F
The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is December (45.5°F).
Average pressure in March
Altadena, CA
- Average pressure in March: 30.03"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 March
Altadena, CA
- Average wind speed in March: 5.3mph
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 March
Altadena, CA
- Average humidity in March: 56%
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 March
Altadena, CA
- Average rainfall in March: 1.1"
The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in March
Altadena, CA
- Average rainfall days in March: 7.5 days
The month with the highest number of rainy days is March (7.5 days).
The month with the least rainy days is June (1.3 days).
Average daylight in March /
Average sunshine in March
Altadena, CA
- Average daylight in March: 12h and 0min
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 March: 8h and 5min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in March
Altadena, CA
- Average sunshine days in March: 22.6 days
The month with the most sunshine days is June (27.2 days).
The month with the least sunshine days is February (21.3 days).
Average UV index in March
Altadena, CA
- Average UV index in March: 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 March
Altadena, CA
- Average cloud cover in March: 22
The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in March
Altadena, CA
- Average visibility in March: 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).
Altadena, California, USA
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