May weather forecast and climate
Highland, CA

Weather in May

The last month of the spring, May, is a moderately hot month in Highland, California, with average temperature varying between 75.7°F (24.3°C) and 52.2°F (11.2°C).

Temperature

In May, the average high-temperature slightly increases, from an agreeable 69.4°F (20.8°C) in April, to a moderately hot 75.7°F (24.3°C). In May, in Highland, the average low-temperature is 52.2°F (11.2°C).

Humidity

The average relative humidity in May is 49%.

Rainfall

In May, in Highland, the rain falls for 4.1 days. Throughout May, 0.2" (5mm) of precipitation is accumulated. In Highland, during the entire year, the rain falls for 51.8 days and collects up to 6.69" (170mm) of precipitation.

Snowfall

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

Daylight

In May, the average length of the day is 14h.

Sunshine

In May, the average sunshine in Highland is 11.9h.

UV index

The average daily maximum UV index in Highland is 6. A UV Index of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in May in Highland?

In May, in Highland, the average high-temperature is 75.7°F (24.3°C), and the average low-temperature is 52.2°F (11.2°C).

What is the average humidity in May in Highland?

In May, the average relative humidity in Highland, California, is 49%.

How many days does it rain in May in Highland?

In Highland, in May, during 4.1 rainfall days, 0.2" (5mm) of precipitation is typically accumulated.

When it does not snow in Highland?

January, March through December are months without snowfall in Highland, California.

How many hours of daylight does Highland have in May?

In Highland, the average length of the day in May is 14h.

How long on average sun shines in May in Highland?

The average sunshine in May is 11.9h.

What is the UV index intensity in May in Highland?

In Highland, California, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to the Sun's UV rays.

Average temperature in May
Highland, CA

Average temperature in May - Highland, CA
  • Average high temperature in May: 75.7°F

The warmest month (with the highest average high temperature) is August (90.9°F).
The month with the lowest average high temperature is December (57.7°F).

  • Average low temperature in May: 52.2°F

The month with the highest average low temperature is August (66.6°F).
The coldest months (with the lowest average low temperature) are February and December (41.5°F).

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Average pressure in May
Highland, CA

Average pressure in May - Highland, CA
  • Average pressure in May: 29.88"

The month with the highest atmospheric pressure is January (30.1").
The month with the lowest atmospheric pressure is June (29.84").

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Average wind speed in May
Highland, CA

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

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is September (4.8mph).

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Average humidity in May
Highland, CA

Average humidity in May - Highland, CA
  • Average humidity in May: 49%

The month with the highest relative humidity is February (52%).
The month with the lowest relative humidity is August (36%).

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Average rainfall in May
Highland, CA

Average rainfall in May - Highland, CA
  • Average rainfall in May: 0.2"

The wettest month (with the highest rainfall) is December (1.42").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in May
Highland, CA

Average rainfall days in May - Highland, CA
  • Average rainfall days in May: 4.1 days

The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is June (1.3 days).

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Average snowfall days in May
Highland, CA

Average snowfall days in May - Highland, 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
Highland, CA

Average daylight in May / Average sunshine in May - Highland, CA
  • Average daylight in May: 14h

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: 11.9h

The month with the most sunshine is July (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 6.9h).

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Average sunshine days in May
Highland, CA

Average sunshine days in May - Highland, CA
  • Average sunshine days in May: 25.1 days

The month with the most sunshine days is June (28.5 days).
The month with the least sunshine days is February (20.9 days).

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Average UV index in May
Highland, CA

Average UV index in May - Highland, CA
  • Average UV index in May: 6

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
Highland, CA

Average cloud cover in May - Highland, CA
  • Average cloud cover in May: 11

Months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in May
Highland, CA

Average visibility in May - Highland, 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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