May weather forecast
Montclair, CA

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Weather in May

May, the last month of the spring in Montclair, is a moderately hot month, with temperature in the range of an average low of 53.6°F and an average high of 76.6°F.

Temperature

May's arrival brings an average high-temperature of a warm 76.6°F, demonstrating subtle variation from the preceding month. Montclair encounters a substantial decline from its daily high to a low-temperature of 53.6°F during May nights.

Humidity

March and May, with an average relative humidity of 54%, are the most humid months.

Rainfall

In Montclair, in May, it is raining for 3.8 days, with typically 0.24" of accumulated precipitation. In Montclair, during the entire year, the rain falls for 49.6 days and collects up to 7.8" of precipitation.

Snowfall

In Montclair, snow does not fall in January, March through December.

Daylight

In Montclair, the average length of the day in May is 13h and 57min.
On the first day of May, sunrise is at 6:01 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 7:56 pm PDT.

Sunshine

In Montclair, the average sunshine in May is 11.8h.

UV index

In Montclair, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 6 during May translates into the following directions:
Resist extreme sun exposure. Guarding against solar damage is essential. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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FAQ

What are the temperatures in Montclair in May?

The average high-temperature and low-temperature in Montclair during May are 76.6°F and 53.6°F respectively.

What are the most humid months in Montclair?

March and May, with an average relative humidity of 54%, are most humid months in Montclair, California.

What is the average humidity in May in Montclair?

In May, the average relative humidity is 54%.

How many days does it rain in May in Montclair?

In Montclair, California, during May, the rain falls for 3.8 days and regularly aggregates up to 0.24" of precipitation.

When it does not snow in Montclair?

January, March through December are months without snowfall.

What is the average length of the day in May in Montclair?

The average day length in May in Montclair, California, is 13h and 57min.

What time are sunrise and sunset in May in Montclair?

On the first day of May in Montclair, sunrise is at 6:01 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 7:56 pm PDT.

How long on average sun shines in May in Montclair?

In May, the average sunshine duration is 11.8h.

What is the UV index reading in May in Montclair?

In Montclair, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Montclair, CA

Average temperature in May - Montclair, CA
  • Average high temperature in May: 76.6°F

The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is December (62.1°F).

  • Average low temperature in May: 53.6°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (45.5°F).

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Average pressure in May
Montclair, CA

Average pressure in May - Montclair, CA
  • Average pressure in May: 29.91"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in May
Montclair, CA

Average wind speed in May - Montclair, CA
  • Average wind speed in May: 5.8mph

The windiest months (with the highest average wind speed) are April and May (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).

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Average humidity in May
Montclair, CA

Average humidity in May - Montclair, CA
  • Average humidity in May: 54%

The months with the highest relative humidity are March and May (54%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in May
Montclair, CA

Average rainfall in May - Montclair, CA
  • Average rainfall in May: 0.24"

The wettest month (with the highest rainfall) is February (1.77").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in May
Montclair, CA

Average rainfall days in May - Montclair, CA
  • Average rainfall days in May: 3.8 days

The month with the highest number of rainy days is March (7.1 days).
The month with the least rainy days is June (1.2 days).

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Average snowfall days in May
Montclair, CA

Average snowfall days in May - Montclair, CA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in May /
Average sunshine in May
Montclair, CA

Average daylight in May / Average sunshine in May - Montclair, CA
  • Average daylight in May: 14h 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 May: 11h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).

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Average sunshine days in May
Montclair, CA

Average sunshine days in May - Montclair, CA
  • Average sunshine days in May: 26 days

The month with the most sunshine days is June (28.2 days).
The month with the least sunshine days is February (21.5 days).

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Average UV index in May
Montclair, CA

Average UV index in May - Montclair, CA
  • Average UV index in May: 6

The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in May
Montclair, CA

Average cloud cover in May - Montclair, CA
  • Average cloud cover in May: 13

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in May
Montclair, CA

Average visibility in May - Montclair, CA
  • Average visibility in May: 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).

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Montclair, California, USA

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