May weather forecast
Moreno Valley, CA

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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

The last month of the spring, May, is a warm month in Moreno Valley, California, with temperature in the range of an average low of 52.3°F (11.3°C) and an average high of 75.6°F (24.2°C).

Temperature

The high-temperature average in May for Moreno Valley is a moderately hot 75.6°F (24.2°C), staying closely aligned with April's conditions. Moreno Valley's May nights cool down significantly from the day's heat, to an average low-temperature of 52.3°F (11.3°C).

Humidity

The months with the highest humidity are February and May, with an average relative humidity of 56%.

Rainfall

In Moreno Valley, during May, the rain falls for 4.4 days and regularly aggregates up to 0.28" (7mm) of precipitation. Throughout the year, there are 52.6 rainfall days, and 7.52" (191mm) of precipitation is accumulated.

Snowfall

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

Daylight

In May, the average length of the day is 13h and 56min.
On the first day of the month, sunrise is at 5:58 am and sunset at 7:33 pm. On the last day of May, sunrise is at 5:38 am and sunset at 7:54 pm PDT.

Sunshine

In May, the average sunshine is 11.6h.

UV index

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 5 during May translates into the following directions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

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 is the most humid month?

February and May, with an average relative humidity of 56%, are most humid months.

What is the average humidity in May?

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

How much does it rain in May?

In Moreno Valley, during May, the rain falls for 4.4 days and regularly aggregates up to 0.28" (7mm) of precipitation.

When it does not snow?

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

What is the average length of the day in May?

In Moreno Valley, California, the average day length in May is 13h and 56min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:58 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 7:54 pm PDT.

How many hours of sunshine does Moreno Valley have in May?

The average sunshine duration in May is 11.6h.

What is the UV index reading in May?

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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).

Average pressure in May
Moreno Valley, CA

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

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

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).

Average humidity in May
Moreno Valley, CA

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

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

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").

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).

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").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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: 13h and 5min

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 4min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

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).

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).
The months with the lowest UV index are November and December (UV index 3).

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).

Average visibility in May
Moreno Valley, CA

Average visibility in May - Moreno Valley, 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).

Moreno Valley, California, USA

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