May weather forecast
Rosemead, CA

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Weather in May

May, the last month of the spring in Rosemead, is a warm month, with an average temperature ranging between min 54.7°F (12.6°C) and max 75°F (23.9°C).

Temperature

At the onset of May, Rosemead records an average high-temperature of a warm 75°F (23.9°C), showing little deviation from the preceding month. Nighttime temperatures in Rosemead consistently average a cool 54.7°F (12.6°C) during May.

Humidity

The average relative humidity in May in Rosemead is 58%.

Rainfall

In Rosemead, California, in May, during 3.7 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. In Rosemead, California, during the entire year, the rain falls for 43 days and collects up to 6.06" (154mm) of precipitation.

Daylight

In May, the average length of the day in Rosemead is 13h and 57min.
On the first day of May, sunrise is at 6:01 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 7:58 pm PDT.

Sunshine

In Rosemead, California, the average sunshine in May is 11.6h.

UV index

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In May, an average UV index of 5 transforms into the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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Frequently asked questions

What is the average May temperature in Rosemead?

In Rosemead, 75°F (23.9°C) is the average high-temperature and 54.7°F (12.6°C) is the average low-temperature during May.

What is the average humidity in May in Rosemead?

In Rosemead, California, the average relative humidity in May is 58%.

How many days does it rain in May in Rosemead?

In Rosemead, during May, the rain falls for 3.7 days and regularly aggregates up to 0.16" (4mm) of precipitation.

How many hours of daylight does Rosemead have in May?

In May, the average day length in Rosemead, California, is 13h and 57min.

When is the sunrise / sunset in May in Rosemead?

In May, on the first day of the month, sunrise is at 6:01 am and sunset at 7:36 pm. On the last day of the month, in Rosemead, California, sunrise is at 5:41 am and sunset at 7:58 pm PDT.

How long on average sun shines in May in Rosemead?

In May, the average sunshine duration in Rosemead, California, is 11.6h.

How high is the UV index in May in Rosemead?

In Rosemead, California, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Rosemead, CA

Average temperature in May - Rosemead, CA
  • Average high temperature in May: 75°F

The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is December (63.5°F).

  • Average low temperature in May: 54.7°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is December (47.5°F).

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Average pressure in May
Rosemead, CA

Average pressure in May - Rosemead, CA
  • Average pressure in May: 29.92"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in May
Rosemead, CA

Average wind speed in May - Rosemead, CA
  • Average wind speed in May: 5.6mph

The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest months (with the lowest average wind speed) are September and October (4.5mph).

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Average humidity in May
Rosemead, CA

Average humidity in May - Rosemead, CA
  • Average humidity in May: 58%

The month with the highest relative humidity is June (59%).
The month with the lowest relative humidity is November (47%).

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Average rainfall in May
Rosemead, CA

Average rainfall in May - Rosemead, CA
  • Average rainfall in May: 0.16"

The wettest month (with the highest rainfall) is February (1.3").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in May
Rosemead, CA

Average rainfall days in May - Rosemead, CA
  • Average rainfall days in May: 3.7 days

The month with the highest number of rainy days is March (5.5 days).
The month with the least rainy days is June (1.2 days).

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

Average daylight in May / Average sunshine in May - Rosemead, 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 month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).

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Average sunshine days in May
Rosemead, CA

Average sunshine days in May - Rosemead, CA
  • Average sunshine days in May: 25.7 days

The month with the most sunshine days is June (27.5 days).
The month with the least sunshine days is February (22.2 days).

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Average UV index in May
Rosemead, CA

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

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).

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Average cloud cover in May
Rosemead, CA

Average cloud cover in May - Rosemead, CA
  • Average cloud cover in May: 14

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

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Average visibility in May
Rosemead, CA

Average visibility in May - Rosemead, 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).

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Rosemead, California, USA

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