March weather forecast
San Dimas, CA

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Weather in March

March, the first month of the spring in San Dimas, is an agreeable month, with an average temperature varying between 47.5°F (8.6°C) and 68.2°F (20.1°C).

Temperature

The transition into March marks the average high-temperature at an agreeable 68.2°F (20.1°C), differing minimally from February's 64.4°F (18°C). San Dimas experiences an average low-temperature reading of 47.5°F (8.6°C) throughout March.

Humidity

March and May, with an average relative humidity of 55%, are the most humid months in San Dimas.

Rainfall

In San Dimas, during March, the rain falls for 6.3 days and regularly aggregates up to 0.67" (17mm) of precipitation. Throughout the year, there are 45.2 rainfall days, and 6.5" (165mm) of precipitation is accumulated.

Daylight

In San Dimas, the average length of the day in March is 12h and 0min.
On the first day of the month, sunrise is at 6:18 am and sunset at 5:48 pm PST. On the last day of March, in San Dimas, sunrise is at 6:38 am and sunset at 7:11 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

The average sunshine in March is 9h.

UV index

The average daily maximum UV index in March is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: A maximum daily UV index of 5 during March morphs into the following directions:
Ensure safety - Imperative it is to shield skin and eyes from damage. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for San Dimas in March?

In San Dimas, in March, the average high-temperature is 68.2°F (20.1°C), and the average low-temperature is 47.5°F (8.6°C).

What are the most humid months?

March and May, with an average relative humidity of 55%, are most humid months.

What is the average humidity in March?

In San Dimas, California, the average relative humidity in March is 55%.

How many days does it rain in March in San Dimas?

In San Dimas, in March, it is raining for 6.3 days, with typically 0.67" (17mm) of accumulated precipitation.

How many hours of daylight does San Dimas have in March?

In March, the average day length in San Dimas is 12h and 0min.

When is the sunrise / sunset in March?

On the first day of March in San Dimas, sunrise is at 6:18 am and sunset at 5:48 pm PST. On the last day of the month, sunrise is at 6:38 am and sunset at 7:11 pm PDT.

When does Daylight Saving Time (DST) start in March?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How long on average sun shines in March?

In March, the average sunshine duration is 9h.

How high is the UV index in March?

In San Dimas, the average daily maximum UV index in March is 5. 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 March
San Dimas, CA

Average temperature in March - San Dimas, CA
  • Average high temperature in March: 68.2°F

The warmest month (with the highest average high temperature) is August (89.4°F).
The month with the lowest average high temperature is December (62.4°F).

  • Average low temperature in March: 47.5°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is December (45.5°F).

Average pressure in March
San Dimas, CA

Average pressure in March - San Dimas, CA
  • Average pressure in March: 30.02"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in March
San Dimas, CA

Average wind speed in March - San Dimas, CA
  • Average wind speed in March: 5.1mph

The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).

Average humidity in March
San Dimas, CA

Average humidity in March - San Dimas, CA
  • Average humidity in March: 55%

The months with the highest relative humidity are March and May (55%).
The months with the lowest relative humidity are August and November (45%).

Average rainfall in March
San Dimas, CA

Average rainfall in March - San Dimas, CA
  • Average rainfall in March: 0.67"

The wettest month (with the highest rainfall) is February (1.46").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in March
San Dimas, CA

Average rainfall days in March - San Dimas, CA
  • Average rainfall days in March: 6.3 days

The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (1.2 days).

Average daylight in March /
Average sunshine in March
San Dimas, CA

Average daylight in March / Average sunshine in March - San Dimas, 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: 9h and 0min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 7h and 0min).

Average sunshine days in March
San Dimas, CA

Average sunshine days in March - San Dimas, CA
  • Average sunshine days in March: 24.6 days

The month with the most sunshine days is June (27.8 days).
The month with the least sunshine days is February (22 days).

Average UV index in March
San Dimas, CA

Average UV index in March - San Dimas, CA
  • Average UV index in March: 5

The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in March
San Dimas, CA

Average cloud cover in March - San Dimas, CA
  • Average cloud cover in March: 21

The months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).

Average visibility in March
San Dimas, CA

Average visibility in March - San Dimas, 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).

San Dimas, California, USA

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