Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
With the transition into May, Menlo Park notes an average high-temperature of a pleasant 68.2°F (20.1°C), closely resembling April. An average nighttime temperature of 49.6°F (9.8°C) is observed during May.Humidity
In Menlo Park, the average relative humidity in May is 69%.Rainfall
In Menlo Park, during May, the rain falls for 4.4 days and regularly aggregates up to 0.47" (12mm) of precipitation. Throughout the year, there are 63.3 rainfall days, and 9.53" (242mm) of precipitation is accumulated.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
The average sunshine in May is 10.9h.UV index
April through October, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 5 during May translates into the following directions:
Take precautions - Protection against sun damage is advised. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May?
How much does it rain in May?
How many hours of daylight does Menlo Park have in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Menlo Park have in May?
When is the highest UV index?
How high is the UV index in May?
Average temperature in May
Menlo Park, CA
- Average high temperature in May: 68.2°F
The warmest months (with the highest average high temperature) are July and August (77.5°F).
The month with the lowest average high temperature is December (56.3°F).
- Average low temperature in May: 49.6°F
The month with the highest average low temperature is August (57°F).
The coldest months (with the lowest average low temperature) are January and February (45.1°F).
Average pressure in May
Menlo Park, CA
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June and September (29.92"Hg).
Average wind speed in May
Menlo Park, CA
- Average wind speed in May: 6.5mph
The windiest months (with the highest average wind speed) are April and May (6.5mph).
The calmest months (with the lowest average wind speed) are September and October (4.9mph).
Average humidity in May
Menlo Park, CA
- Average humidity in May: 69%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are September and October (65%).
Average rainfall in May
Menlo Park, CA
- Average rainfall in May: 0.47"
The wettest month (with the highest rainfall) is February (2.01").
The driest month (with the least rainfall) is July (0").
Average rainfall days in May
Menlo Park, CA
- Average rainfall days in May: 4.4 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (0.6 days).
Average daylight in May /
Average sunshine in May
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 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in May
Menlo Park, CA
- Average sunshine days in May: 25.8 days
The month with the most sunshine days is July (30.2 days).
The month with the least sunshine days is March (18 days).
Average UV index in May
Menlo Park, CA
- Average UV index in May: 5
The months with the highest UV index are April, May, June, July, August, September and October (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in May
Menlo Park, CA
- Average cloud cover in May: 23
The months with the most cloud cover are March and December (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in May
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).
Menlo Park, California, USA
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