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 snowfall in March
- Average snowfall 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
The introduction of March notes a subtle temperature variation to a still chilly 48.7°F (9.3°C) from February's 44.6°F (7°C). The temperature dips to an average of 33.8°F (1°C) during March nights.Humidity
The average relative humidity in March is 86%.Rainfall
In Saint Helens, during March, the rain falls for 16 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Saint Helens, during the entire year, the rain falls for 149 days and collects up to 19.37" (492mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Saint Helens, in March, snow falls for 2.1 days, with typically accumulated 1.14" (29mm) of snow. Throughout the year, there are 10.2 snowfall days, and 5.91" (150mm) of snow is accumulated.Daylight
In Saint Helens, the average length of the day in March is 11h and 58min.On the first day of March in Saint Helens, sunrise is at 6:48 am and sunset at 5:58 pm PST. On the last day of the month, sunrise is at 6:51 am and sunset at 7:39 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 Saint Helens, the average sunshine in March is 4.8h.UV index
In Saint Helens, the average daily maximum UV index in March is 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 2 during March translates into these guidelines:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average March temperature?
What is the average humidity in March?
How much does it rain in March?
How much does it snow in March?
How many hours of daylight does Saint Helens have in March?
What time are sunrise and sunset in March?
When does Daylight Saving Time (DST) start in March?
How long on average sun shines in March?
What is the UV index intensity in March?
Average temperature in March
Saint Helens, OR
- Average high temperature in March: 48.7°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (41.9°F).
- Average low temperature in March: 33.8°F
The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (31.8°F).
Average pressure in March
Saint Helens, OR
- Average pressure in March: 30.02"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in March
Saint Helens, OR
- Average wind speed in March: 4.8mph
The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in March
Saint Helens, OR
- Average humidity in March: 86%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are July and August (72%).
Average rainfall in March
Saint Helens, OR
- Average rainfall in March: 1.93"
The wettest month (with the highest rainfall) is January (2.64").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in March
Saint Helens, OR
- Average rainfall days in March: 16 days
The month with the highest number of rainy days is March (16 days).
The month with the least rainy days is July (5.9 days).
Average snowfall in March
Saint Helens, OR
- Average snowfall in March: 1.14"
The month with the highest snowfall is January (1.97").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in March
Saint Helens, OR
- Average snowfall days in March: 2.1 days
The month with the highest number of snowfall days is February (3.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in March /
Average sunshine in March
Saint Helens, OR
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in March: 4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 42min).
Average sunshine days in March
Saint Helens, OR
- Average sunshine days in March: 12.8 days
The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is February (12.1 days).
Average UV index in March
Saint Helens, OR
- Average UV index in March: 2
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in March
Saint Helens, OR
- Average cloud cover in March: 63
The month with the most cloud cover is March (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in March
Saint Helens, OR
- Average visibility in March: 4mi
The months with the highest visibility are July and August (5mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (4mi).
Saint Helens, Oregon, USA
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