May weather forecast
Montalvo, CA

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Weather in May

May, the last month of the spring in Montalvo, is another refreshing month, with an average temperature fluctuating between 65.5°F (18.6°C) and 54.5°F (12.5°C).

Temperature

May's weather displays an average high-temperature of a still enjoyable 65.5°F (18.6°C), slightly varied from April's 63.1°F (17.3°C). Montalvo observes an average nighttime low-temperature of 54.5°F (12.5°C) during the month of May.

Humidity

In May, the average relative humidity is 67%.

Rainfall

In Montalvo, during May, the rain falls for 3.3 days and regularly aggregates up to 0.24" (6mm) of precipitation. Throughout the year, there are 47.8 rainfall days, and 6.97" (177mm) of precipitation is accumulated.

Daylight

The average length of the day in May is 13h and 58min.
On the first day of the month, sunrise is at 6:06 am and sunset at 7:41 pm. On the last day of May, sunrise is at 5:45 am and sunset at 8:03 pm PDT.

Sunshine

The average sunshine in May is 11.7h.

UV index

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 5 in May interprets into the following advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

During May, Montalvo experiences an average high-temperature of 65.5°F (18.6°C) and a low-temperature of 54.5°F (12.5°C).

What is the average humidity in May?

In May, the average relative humidity in Montalvo is 67%.

How much does it rain in May?

In Montalvo, in May, it is raining for 3.3 days, with typically 0.24" (6mm) of accumulated precipitation.

How many hours of daylight does Montalvo have in May?

In May, the average day length is 13h and 58min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:06 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:03 pm PDT.

How many hours of sunshine does Montalvo have in May?

The average sunshine duration in May is 11.7h.

How high is the UV index in May?

In Montalvo, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Montalvo, CA

Average temperature in May - Montalvo, CA
  • Average high temperature in May: 65.5°F

The warmest months (with the highest average high temperature) are August and September (74.3°F).
The month with the lowest average high temperature is February (59°F).

  • Average low temperature in May: 54.5°F

The month with the highest average low temperature is August (62.6°F).
The coldest month (with the lowest average low temperature) is February (48.9°F).

Average pressure in May
Montalvo, CA

Average pressure in May - Montalvo, CA
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.9"Hg).

Average wind speed in May
Montalvo, CA

Average wind speed in May - Montalvo, CA
  • Average wind speed in May: 6.5mph

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest months (with the lowest average wind speed) are August and September (5mph).

Average humidity in May
Montalvo, CA

Average humidity in May - Montalvo, CA
  • Average humidity in May: 67%

The months with the highest relative humidity are June and July (69%).
The month with the lowest relative humidity is November (56%).

Average rainfall in May
Montalvo, CA

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

The wettest month (with the highest rainfall) is January (1.34").
The driest month (with the least rainfall) is June (0.12").

Average rainfall days in May
Montalvo, CA

Average rainfall days in May - Montalvo, CA
  • Average rainfall days in May: 3.3 days

The month with the highest number of rainy days is March (6 days).
The month with the least rainy days is August (2.1 days).

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

Average daylight in May / Average sunshine in May - Montalvo, 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 4min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).

Average sunshine days in May
Montalvo, CA

Average sunshine days in May - Montalvo, CA
  • Average sunshine days in May: 23.3 days

The month with the most sunshine days is October (26 days).
The month with the least sunshine days is July (20.4 days).

Average UV index in May
Montalvo, CA

Average UV index in May - Montalvo, CA
  • Average UV index in May: 5

The month with the highest UV index is August (UV index 6).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in May
Montalvo, CA

Average cloud cover in May - Montalvo, CA
  • Average cloud cover in May: 12

The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).

Average visibility in May
Montalvo, CA

Average visibility in May - Montalvo, 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).

Montalvo, California, USA

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