May weather forecast and climate
Glendora, CA

The beautiful city of Glendora, California, surrounded by the vast mountain ranges
The beautiful city of Glendora, California, surrounded by the vast mountain ranges

Weather in May

May, the last month of the spring, in Glendora, is a warm month, with average temperature varying between 75.2°F (24°C) and 54.1°F (12.3°C).

Temperature

In May, the average high-temperature is essentially the same as in April - a warm 75.2°F (24°C). The average low-temperature, is 54.1°F (12.3°C).

Humidity

Months with the highest humidity are March and May, with an average relative humidity of 55%.

Rainfall

In May, in Glendora, the rain falls for 2.8 days. Throughout May, 0.24" (6mm) of precipitation is accumulated. Throughout the year, there are 44.9 rainfall days, and 7.76" (197mm) of precipitation is accumulated.

Snowfall

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

Daylight

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

Sunshine

In Glendora, California, the average sunshine is 11.8h.

UV index

In Glendora, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 Glendora?

In Glendora, California, in May, the average high-temperature is 75.2°F (24°C), and the average low-temperature is 54.1°F (12.3°C).

What is the most humid month in Glendora?

Months with the highest humidity in Glendora, California, are March and May, with an average relative humidity of 55%.

What is the average humidity in May in Glendora?

In May, the average relative humidity in Glendora, California, is 55%.

How many days does it rain in May in Glendora?

In Glendora, in May, during 2.8 rainfall days, 0.24" (6mm) of precipitation is typically accumulated.

When it does not snow in Glendora?

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

How many hours of daylight does Glendora have in May?

The average length of the day in May in Glendora is 14h.

How long on average sun shines in May in Glendora?

In Glendora, California, the average sunshine in May is 11.8h.

What is the UV index reading in May in Glendora?

In Glendora, California, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in May
Glendora, CA

Average temperature in May - Glendora, CA
  • Average high temperature in May: 75.2°F

The warmest month (with the highest average high temperature) is August (88.7°F).
The month with the lowest average high temperature is December (61.5°F).

  • Average low temperature in May: 54.1°F

The month with the highest average low temperature is August (65.7°F).
The coldest month (with the lowest average low temperature) is December (45.5°F).

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Average pressure in May
Glendora, CA

Average pressure in May - Glendora, CA
  • Average pressure in May: 29.91"

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.87").

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Average wind speed in May
Glendora, CA

Average wind speed in May - Glendora, CA
  • Average wind speed in May: 5.8mph

The windiest months (with the highest average wind speed) are April and May (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).

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Average humidity in May
Glendora, CA

Average humidity in May - Glendora, CA
  • Average humidity in May: 55%

Months with the highest relative humidity are March and May (55%).
Months with the lowest relative humidity are August and November (45%).

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Average rainfall in May
Glendora, CA

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

The wettest month (with the highest rainfall) is February (1.73").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in May
Glendora, CA

Average rainfall days in May - Glendora, CA
  • Average rainfall days in May: 2.8 days

The month with the highest number of rainy days is March (7.2 days).
The month with the least rainy days is June (1.1 days).

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Average snowfall days in May
Glendora, CA

Average snowfall days in May - Glendora, 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
Glendora, CA

Average daylight in May / Average sunshine in May - Glendora, 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: 11.8h

Months with the most sunshine are June and July (Average sunshine: 12.1h).
The month with the least sunshine is February (Average sunshine: 6.9h).

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Average sunshine days in May
Glendora, CA

Average sunshine days in May - Glendora, CA
  • Average sunshine days in May: 27.3 days

The month with the most sunshine days is June (28.6 days).
The month with the least sunshine days is February (22.6 days).

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Average UV index in May
Glendora, CA

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

Months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in May
Glendora, CA

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

Months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 4).

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Average visibility in May
Glendora, CA

Average visibility in May - Glendora, 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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