March weather forecast and climate
Grass Valley, CA

Weather in March

The first month of the spring, March, is a mild month in Grass Valley, California, with temperature in the range of an average high of 56.5°F (13.6°C) and an average low of 39.9°F (4.4°C).

Temperature

In Grass Valley, California, the average high-temperature is relatively the same as in February - a moderate 56.5°F (13.6°C). In Grass Valley, the average low-temperature is 39.9°F (4.4°C).

Humidity

With an average relative humidity of 75%, March is the most humid month.

Rainfall

The month with the most rainfall is March when the rain falls for 15.1 days and typically aggregates up to 6.57" (167mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Grass Valley, California, during March, snow falls for 2.4 days and regularly aggregates up to 4.13" (105mm) of snow. In Grass Valley, during the entire year, snow falls for 6.8 days, and aggregates up to 14.41" (366mm) of snow.

Daylight

The average length of the day in March is 12h.

Sunshine

In Grass Valley, the average sunshine is 7.2h.

UV index

The average daily maximum UV index in March is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in March in Grass Valley?

In March, in Grass Valley, California, the average high-temperature is 56.5°F (13.6°C), and the average low-temperature is 39.9°F (4.4°C).

What is the most humid month in Grass Valley?

With an average relative humidity of 75%, March is the most humid month.

What is the average humidity in March in Grass Valley?

In March, the average relative humidity in Grass Valley is 75%.

How many days does it rain in March in Grass Valley?

In Grass Valley, in March, it is raining for 15.1 days, with typically 6.57" (167mm) of accumulated precipitation.

What is the wettest month in Grass Valley?

March is the month with the most rainfall. Rain falls for 15.1 days and accumulates 6.57" (167mm) of precipitation.

How many days does it snow in March in Grass Valley?

In Grass Valley, California, in March, during 2.4 snowfall days, 4.13" (105mm) of snow is typically accumulated.

What is the average length of the day in March in Grass Valley?

The average length of the day in March is 12h.

How long on average sun shines in March in Grass Valley?

In March, the average sunshine in Grass Valley, California, is 7.2h.

What is the UV index reading in March in Grass Valley?

In March, the average daily maximum UV index in Grass Valley is 3. A UV Index estimate of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.

Average temperature in March
Grass Valley, CA

Average temperature in March - Grass Valley, CA
  • Average high temperature in March: 56.5°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (51.3°F).

  • Average low temperature in March: 39.9°F

The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is December (37.2°F).

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Average pressure in March
Grass Valley, CA

Average pressure in March - Grass Valley, CA
  • Average pressure in March: 30.06"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.9").

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Average wind speed in March
Grass Valley, CA

Average wind speed in March - Grass Valley, CA
  • Average wind speed in March: 5.9mph

The windiest month (with the highest average wind speed) is February (6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in March
Grass Valley, CA

Average humidity in March - Grass Valley, CA
  • Average humidity in March: 75%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (37%).

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Average rainfall in March
Grass Valley, CA

Average rainfall in March - Grass Valley, CA
  • Average rainfall in March: 6.57"

The wettest month (with the highest rainfall) is March (6.57").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in March
Grass Valley, CA

Average rainfall days in March - Grass Valley, CA
  • Average rainfall days in March: 15.1 days

The month with the highest number of rainy days is March (15.1 days).
The month with the least rainy days is July (1.1 days).

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Average snowfall in March
Grass Valley, CA

Average snowfall in March - Grass Valley, CA
  • Average snowfall in March: 4.13"

The month with the highest snowfall is February (6.42").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in March
Grass Valley, CA

Average snowfall days in March - Grass Valley, CA
  • Average snowfall days in March: 2.4 days

The month with the highest number of snowfall days is March (2.4 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in March /
Average sunshine in March
Grass Valley, CA

Average daylight in March / Average sunshine in March - Grass Valley, CA
  • Average daylight in March: 12h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in March: 7.2h

The month with the most sunshine is July (Average sunshine: 12.2h).
The month with the least sunshine is January (Average sunshine: 5.7h).

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Average sunshine days in March
Grass Valley, CA

Average sunshine days in March - Grass Valley, CA
  • Average sunshine days in March: 14.8 days

The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (14.8 days).

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Average UV index in March
Grass Valley, CA

Average UV index in March - Grass Valley, CA
  • Average UV index in March: 3

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 2).

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Average cloud cover in March
Grass Valley, CA

Average cloud cover in March - Grass Valley, CA
  • Average cloud cover in March: 41

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in March
Grass Valley, CA

Average visibility in March - Grass Valley, CA
  • Average visibility in March: 6mi

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

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