March weather forecast
Thornton, WA

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Weather in March

March, the first month of the spring in Thornton, is a chilly month, with an average temperature varying between 46.9°F (8.3°C) and 33.1°F (0.6°C).

Temperature

Thornton, Washington, observes a slight ascent in average high-temperatures during March, adjusting from a cold 39°F (3.9°C) in February to a chilly 46.9°F (8.3°C). March nights in Thornton, Washington, experience a consistent temperature drop to a wintry 33.1°F (0.6°C).

Humidity

In March, the average relative humidity is 76%.

Rainfall

In Thornton, Washington, during March, the rain falls for 13.7 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Thornton, Washington, during the entire year, the rain falls for 120.2 days and collects up to 14.69" (373mm) of precipitation.

Snowfall

Months with snowfall in Thornton are January through May, September through December. In Thornton, in March, snow falls for 4.8 days, with typically accumulated 2.95" (75mm) of snow. In Thornton, during the entire year, snow falls for 39.6 days and aggregates up to 22.68" (576mm) of snow.

Daylight

The average length of the day in March is 11h and 57min.
On the first day of the month, sunrise is at 6:27 am and sunset at 5:35 pm PST. On the last day of March, in Thornton, sunrise is at 6:28 am and sunset at 7:18 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 Thornton, the average sunshine in March is 6.8h.

UV index

The average daily maximum UV index in March is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: In March, the maximum UV index of 3 suggests this advice:
Prioritize safety - Suggestions to prevent sun damage are offered. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
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Frequently asked questions

What is the usual temperature for Thornton in March?

The average high-temperature, in March, in Thornton, is 46.9°F (8.3°C), while the average low-temperature is 33.1°F (0.6°C).

What is the average humidity in March in Thornton?

In March, the average relative humidity is 76%.

How much does it rain in Thornton in March?

In Thornton, Washington, in March, during 13.7 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

How many days does it snow in March in Thornton?

In Thornton, in March, during 4.8 snowfall days, 2.95" (75mm) of snow is typically accumulated.

How many hours of daylight does Thornton have in March?

In March, the average day length in Thornton, Washington, is 11h and 57min.

When are sunrise and sunset in March in Thornton?

In March, on the first day of the month, sunrise is at 6:27 am and sunset at 5:35 pm PST. On the last day of the month, in Thornton, sunrise is at 6:28 am and sunset at 7:18 pm PDT.

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

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Thornton, 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 Thornton?

In Thornton, Washington, the average sunshine duration in March is 6.8h.

How high is the UV index in March in Thornton?

The average daily maximum UV index in March in Thornton, Washington, is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
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
Thornton, WA

Average temperature in March - Thornton, WA
  • Average high temperature in March: 46.9°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 (34.7°F).

  • Average low temperature in March: 33.1°F

The month with the highest average low temperature is August (60.4°F).
The coldest month (with the lowest average low temperature) is December (24.6°F).

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Average pressure in March
Thornton, WA

Average pressure in March - Thornton, WA
  • Average pressure in March: 30.03"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in March
Thornton, WA

Average wind speed in March - Thornton, WA
  • Average wind speed in March: 8mph

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in March
Thornton, WA

Average humidity in March - Thornton, WA
  • Average humidity in March: 76%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (37%).

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Average rainfall in March
Thornton, WA

Average rainfall in March - Thornton, WA
  • Average rainfall in March: 1.61"

The wettest month (with the highest rainfall) is December (1.93").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in March
Thornton, WA

Average rainfall days in March - Thornton, WA
  • Average rainfall days in March: 13.7 days

The month with the highest number of rainy days is April (14.6 days).
The month with the least rainy days is July (4.5 days).

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Average snowfall in March
Thornton, WA

Average snowfall in March - Thornton, WA
  • Average snowfall in March: 2.95"

The month with the highest snowfall is February (6.69").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in March
Thornton, WA

Average snowfall days in March - Thornton, WA
  • Average snowfall days in March: 4.8 days

The months with the highest number of snowfall days are February and December (9.6 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in March /
Average sunshine in March
Thornton, WA

Average daylight in March / Average sunshine in March - Thornton, WA
  • Average daylight in March: 12h and 0min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in March: 6h and 5min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 4h and 36min).

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Average sunshine days in March
Thornton, WA

Average sunshine days in March - Thornton, WA
  • Average sunshine days in March: 14 days

The month with the most sunshine days is July (24.6 days).
The month with the least sunshine days is February (12.2 days).

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Average UV index in March
Thornton, WA

Average UV index in March - Thornton, WA
  • Average UV index in March: 3

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in March
Thornton, WA

Average cloud cover in March - Thornton, WA
  • Average cloud cover in March: 46

The months with the most cloud cover are January and December (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 11).

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Average visibility in March
Thornton, WA

Average visibility in March - Thornton, WA
  • Average visibility in March: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).

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Thornton, Washington, USA

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