May weather forecast
West Menlo Park, CA

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Weather in May

May, the last month of the spring in West Menlo Park, is another refreshing month, with an average temperature varying between 50.2°F (10.1°C) and 64.9°F (18.3°C).

Temperature

West Menlo Park, California, signifies an average high-temperature of a still enjoyable 64.9°F (18.3°C) in May, closely mirroring the 62.2°F (16.8°C) of April. West Menlo Park's nighttime temperature in May falls to an average of 50.2°F (10.1°C).

Humidity

In May, the average relative humidity is 74%.

Rainfall

In May, the rain falls for 3.8 days. Throughout May, 0.31" (8mm) of precipitation is accumulated. In West Menlo Park, during the entire year, the rain falls for 57.5 days and collects up to 4.76" (121mm) of precipitation.

Daylight

The average length of the day in May is 14h and 12min.
On the first day of the month, sunrise is at 6:12 am and sunset at 7:59 pm. On the last day of May, sunrise is at 5:49 am and sunset at 8:23 pm PDT.

Sunshine

In West Menlo Park, the average sunshine in May is 10.7h.

UV index

In West Menlo Park, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 4 during May translates into the following directions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.

Frequently asked questions

What are the temperatures in May?

The high-temperature, in May, in West Menlo Park, records 64.9°F (18.3°C), while the low-temperature is 50.2°F (10.1°C).

What is the average humidity in May?

The average relative humidity in May is 74%.

How much does it rain in May?

In May, the rain falls for 3.8 days. Throughout May, 0.31" (8mm) of precipitation is accumulated.

What is the average length of the day in May?

In West Menlo Park, the average day length in May is 14h and 12min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:12 am and sunset at 7:59 pm. On the last day of the month, in West Menlo Park, sunrise is at 5:49 am and sunset at 8:23 pm PDT.

How long on average sun shines in May?

The average sunshine duration in May is 10.7h.

How high is the UV index in May?

The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's 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
West Menlo Park, CA

Average temperature in May - West Menlo Park, CA
  • Average high temperature in May: 64.9°F

The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is December (55.8°F).

  • Average low temperature in May: 50.2°F

The months with the highest average low temperature are August and September (56.7°F).
The coldest months (with the lowest average low temperature) are January and February (46.4°F).

Average pressure in May
West Menlo Park, CA

Average pressure in May - West Menlo Park, CA
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).

Average wind speed in May
West Menlo Park, CA

Average wind speed in May - West Menlo Park, CA
  • Average wind speed in May: 7.5mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in May
West Menlo Park, CA

Average humidity in May - West Menlo Park, CA
  • Average humidity in May: 74%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is October (68%).

Average rainfall in May
West Menlo Park, CA

Average rainfall in May - West Menlo Park, CA
  • Average rainfall in May: 0.31"

The wettest month (with the highest rainfall) is February (0.98").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in May
West Menlo Park, CA

Average rainfall days in May - West Menlo Park, CA
  • Average rainfall days in May: 3.8 days

The month with the highest number of rainy days is March (10.6 days).
The month with the least rainy days is June (0.9 days).

Average daylight in May /
Average sunshine in May
West Menlo Park, CA

Average daylight in May / Average sunshine in May - West Menlo Park, CA
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in May: 10h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days in May
West Menlo Park, CA

Average sunshine days in May - West Menlo Park, CA
  • Average sunshine days in May: 22.9 days

The months with the most sunshine days are June and July (26.3 days).
The month with the least sunshine days is March (18.3 days).

Average UV index in May
West Menlo Park, CA

Average UV index in May - West Menlo Park, CA
  • Average UV index in May: 4

The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).

Average cloud cover in May
West Menlo Park, CA

Average cloud cover in May - West Menlo Park, CA
  • Average cloud cover in May: 25

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 9).

Average visibility in May
West Menlo Park, CA

Average visibility in May - West Menlo Park, 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).

West Menlo Park, California, USA

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