March weather forecast
Portola, CA

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Weather in March

March, the first month of the spring in Portola, is a frosty month, with an average temperature varying between 43.2°F (6.2°C) and 25.3°F (-3.7°C).

Temperature

With the transition into March, Portola notes an average high-temperature of a chilly 43.2°F (6.2°C), closely resembling February. An average nighttime temperature of 25.3°F (-3.7°C) is witnessed in Portola throughout March.

Humidity

The months with the highest humidity are January and March, with an average relative humidity of 81%.

Rainfall

The month with the most rainfall is March, when the rain falls for 10.1 days and typically aggregates up to 4.02" (102mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall. In Portola, in March, snow falls for 14.7 days, with typically accumulated 22.48" (571mm) of snow. In Portola, during the entire year, snow falls for 69.3 days and aggregates up to 103.5" (2629mm) of snow.

Daylight

The average length of the day in March is 11h and 59min.
On the first day of March, sunrise is at 6:33 am and sunset at 5:54 pm PST. On the last day of the month, sunrise is at 6:45 am and sunset at 7:25 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 March, the average sunshine is 7h.

UV index

In Portola, California, the average daily maximum UV index in March is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 2 during March translates into the following directions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.

Frequently asked questions

How cold is it in March?

The high-temperature, in March, in Portola, is 43.2°F (6.2°C), while the low-temperature averages to 25.3°F (-3.7°C).

What is the most humid month?

The months with the highest humidity are January and March, with an average relative humidity of 81%.

What is the average humidity in March?

In March, the average relative humidity is 81%.

What is the rainiest month?

The month with the most rainfall is March, when the rain falls for 10.1 days and typically aggregates up to 4.02" (102mm) of precipitation.

How much does it rain in March?

In March, the rain falls for 10.1 days. Throughout March, 4.02" (102mm) of precipitation is accumulated.

How much does it snow in March?

In Portola, in March, during 14.7 snowfall days, 22.48" (571mm) of snow is typically accumulated.

How many hours of daylight does Portola have in March?

In March, the average day length is 11h and 59min.

When is the sunrise / sunset in March?

In March, on the first day of the month, sunrise is at 6:33 am and sunset at 5:54 pm PST. On the last day of the month, sunrise is at 6:45 am and sunset at 7:25 pm PDT.

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

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

How many hours of sunshine does Portola have in March?

The average sunshine duration in March is 7h.

What is the UV index reading in March?

The average daily maximum UV index in March is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Portola, CA

Average temperature in March - Portola, CA
  • Average high temperature in March: 43.2°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (37.2°F).

  • Average low temperature in March: 25.3°F

The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is December (21.6°F).

Average pressure in March
Portola, CA

Average pressure in March - Portola, CA
  • Average pressure in March: 30.05"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in March
Portola, CA

Average wind speed in March - Portola, CA
  • Average wind speed in March: 6.6mph

The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest months (with the lowest average wind speed) are August and September (5.2mph).

Average humidity in March
Portola, CA

Average humidity in March - Portola, CA
  • Average humidity in March: 81%

The months with the highest relative humidity are January and March (81%).
The months with the lowest relative humidity are July and August (40%).

Average rainfall in March
Portola, CA

Average rainfall in March - Portola, CA
  • Average rainfall in March: 4.02"

The wettest month (with the highest rainfall) is March (4.02").
The driest month (with the least rainfall) is August (0.2").

Average rainfall days in March
Portola, CA

Average rainfall days in March - Portola, CA
  • Average rainfall days in March: 10.1 days

The month with the highest number of rainy days is May (11.8 days).
The month with the least rainy days is July (3.3 days).

Average snowfall in March
Portola, CA

Average snowfall in March - Portola, CA
  • Average snowfall in March: 22.48"

The month with the highest snowfall is December (22.52").
The months with the least snowfall are July and August (0").

Average snowfall days in March
Portola, CA

Average snowfall days in March - Portola, CA
  • Average snowfall days in March: 14.7 days

The month with the highest number of snowfall days is March (14.7 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in March /
Average sunshine in March
Portola, CA

Average daylight in March / Average sunshine in March - Portola, CA
  • Average daylight in March: 12h and 0min

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

  • Average sunshine in March: 7h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is January (Average sunshine: 5h).

Average sunshine days in March
Portola, CA

Average sunshine days in March - Portola, CA
  • Average sunshine days in March: 11.8 days

The month with the most sunshine days is August (26 days).
The month with the least sunshine days is March (11.8 days).

Average UV index in March
Portola, CA

Average UV index in March - Portola, CA
  • Average UV index in March: 2

The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is November (UV index 1).

Average cloud cover in March
Portola, CA

Average cloud cover in March - Portola, CA
  • Average cloud cover in March: 47

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 7).

Average visibility in March
Portola, CA

Average visibility in March - Portola, CA
  • Average visibility in March: 5mi

The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).

Portola, California, USA

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