March weather forecastFullerton, CA
March
Weather in March
As Fullerton transitions from winter to spring in March, it experiences a minor increase in both temperatures and rainfall. Temperatures rise gently to 52°F (11.1°C) to 67.6°F (19.8°C) with slightly higher rainfall than February. A contrasting element of March weather is the relatively higher daylight hours that could offer more outdoor activities. Yet, the cooler temperatures and frequent rainfall might demand an extra layer and a raincoat for comfortable outings. On the upside, Fullerton's cloud coverage remains somewhat low, allowing for clear saggy skies.Temperature
The advent of March signifies a minor shift to an average high-temperature of a still refreshing 67.6°F (19.8°C), aligning closely with February. Throughout March, Fullerton anticipates an average low-temperature of 52°F (11.1°C).Humidity
In Fullerton, the average relative humidity in March is 60%.Rainfall
In March, the rain falls for 7.3 days. Throughout March, 0.87" (22mm) of precipitation is accumulated. In Fullerton, during the entire year, the rain falls for 52.5 days and collects up to 7.09" (180mm) of precipitation.Daylight
In Fullerton, the average length of the day in March is 12h and 0min.On the first day of the month, sunrise is at 6:19 am and sunset at 5:48 pm PST. On the last day of March, in Fullerton, sunrise is at 6:39 am and sunset at 7:12 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 8.8h.UV index
The average daily maximum UV index in March in Fullerton is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 5 during March translates into these guidelines:
Put precautions into practice - Guidance to elude sunburn is provided. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Fullerton, CA
- Average high temperature in March: 67.6°F
The warmest month (with the highest average high temperature) is August (83.5°F).
The month with the lowest average high temperature is December (64°F).
- Average low temperature in March: 52°F
The month with the highest average low temperature is August (65.5°F).
The coldest month (with the lowest average low temperature) is February (50.2°F).
Average pressure in March
Fullerton, CA
- Average pressure in March: 30.03"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in March
Fullerton, CA
- Average wind speed in March: 5.3mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest months (with the lowest average wind speed) are September and October (4.7mph).
Average humidity in March
Fullerton, CA
- Average humidity in March: 60%
The month with the highest relative humidity is June (65%).
The month with the lowest relative humidity is November (51%).
Average rainfall in March
Fullerton, CA
- Average rainfall in March: 0.87"
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 March
Fullerton, CA
- Average rainfall days in March: 7.3 days
The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is June (1.5 days).
Average daylight in March /
Average sunshine in March
Fullerton, 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 48min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in March
Fullerton, CA
- Average sunshine days in March: 22.9 days
The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is February (20.6 days).
Average UV index in March
Fullerton, CA
- Average UV index in March: 5
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in March
Fullerton, CA
- Average cloud cover in March: 22
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 March
Fullerton, 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).
