May weather forecast and climate
Moreno Valley, CA

Marina on Lake Perris State Park in Moreno Valley, California, with visible piers, luxury boats, and high hills
Marina on Lake Perris State Park in Moreno Valley, California, with visible piers, luxury boats, and high hills

Weather in May

May, the last month of the spring, in Moreno Valley, is a moderately hot month, with average temperature varying between 52.3°F (11.3°C) and 75.6°F (24.2°C).

Temperature

In Moreno Valley, the average high-temperature is essentially the same as in April - a warm 75.6°F (24.2°C). In Moreno Valley, in May, the average low-temperature is 52.3°F (11.3°C).

Humidity

Months with the highest humidity in Moreno Valley are February and May, with an average relative humidity of 56%.

Rainfall

In Moreno Valley, during 4.4 rainfall days, 0.28" (7mm) of precipitation is typically accumulated. In Moreno Valley, during the entire year, the rain falls for 52.6 days and collects up to 7.52" (191mm) of precipitation.

Snowfall

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

Daylight

In Moreno Valley, the average length of the day in May is 13.9h.

Sunshine

In Moreno Valley, the average sunshine is 11.6h.

UV index

In Moreno Valley, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to the UV radiation for the average person.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in May in Moreno Valley?

In Moreno Valley, in May, the average high-temperature is 75.6°F (24.2°C), and the average low-temperature is 52.3°F (11.3°C).

What are the most humid months in Moreno Valley?

Months with the highest humidity in Moreno Valley, California, are February and May, with an average relative humidity of 56%.

What is the average humidity in May in Moreno Valley?

In May, the average relative humidity in Moreno Valley is 56%.

How many days does it rain in May in Moreno Valley?

In Moreno Valley, California, in May, it is raining for 4.4 days, with typically 0.28" (7mm) of accumulated precipitation.

When it does not snow in Moreno Valley?

In Moreno Valley, California, snow does not fall in January, March through December.

What is the average length of the day in May in Moreno Valley?

The average length of the day in May in Moreno Valley is 13.9h.

How long on average sun shines in May in Moreno Valley?

In May, the average sunshine in Moreno Valley is 11.6h.

What is the UV index reading in May in Moreno Valley?

The average daily maximum UV index in May in Moreno Valley, California, is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to the UV radiation.

Average temperature in May
Moreno Valley, CA

Average temperature in May - Moreno Valley, CA
  • Average high temperature in May: 75.6°F

The warmest month (with the highest average high temperature) is August (90.7°F).
The month with the lowest average high temperature is December (60.8°F).

  • Average low temperature in May: 52.3°F

The month with the highest average low temperature is August (64.8°F).
The coldest months (with the lowest average low temperature) are February and December (43.5°F).

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Average pressure in May
Moreno Valley, CA

Average pressure in May - Moreno Valley, CA
  • Average pressure in May: 29.89"

The month with the highest atmospheric pressure is January (30.1").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in May
Moreno Valley, CA

Average wind speed in May - Moreno Valley, CA
  • Average wind speed in May: 5.5mph

The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).

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Average humidity in May
Moreno Valley, CA

Average humidity in May - Moreno Valley, CA
  • Average humidity in May: 56%

Months with the highest relative humidity are February and May (56%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in May
Moreno Valley, CA

Average rainfall in May - Moreno Valley, CA
  • Average rainfall in May: 0.28"

The wettest month (with the highest rainfall) is February (1.61").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in May
Moreno Valley, CA

Average rainfall days in May - Moreno Valley, CA
  • Average rainfall days in May: 4.4 days

The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1.3 days).

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Average snowfall in May
Moreno Valley, CA

Average snowfall in May - Moreno Valley, CA
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.04").
Months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in May
Moreno Valley, CA

Average snowfall days in May - Moreno Valley, CA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (0.1 days).
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
Moreno Valley, CA

Average daylight in May / Average sunshine in May - Moreno Valley, CA
  • Average daylight in May: 13.9h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in May: 11.6h

Months with the most sunshine are June and July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.8h).

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Average sunshine days in May
Moreno Valley, CA

Average sunshine days in May - Moreno Valley, CA
  • Average sunshine days in May: 24.3 days

The month with the most sunshine days is June (27.8 days).
The month with the least sunshine days is February (20.3 days).

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Average UV index in May
Moreno Valley, CA

Average UV index in May - Moreno Valley, CA
  • Average UV index in May: 5

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

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Average cloud cover in May
Moreno Valley, CA

Average cloud cover in May - Moreno Valley, CA
  • Average cloud cover in May: 15

The month with the most cloud cover is March (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in May
Moreno Valley, CA

Average visibility in May - Moreno Valley, CA
  • Average visibility in May: 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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