May weather forecast and climate
Selma, CA

Weather in May

May, the last month of the spring, in Selma, is also a moderately hot month, with average temperature ranging between max 81.9°F (27.7°C) and min 55.6°F (13.1°C).

Temperature

In Selma, the average high-temperature in May marginally rises, from 73.6°F (23.1°C) in April, to a still warm 81.9°F (27.7°C). The average low-temperature, in Selma, California, is 55.6°F (13.1°C).

Heat index

In May, the average heat index is appraised at 81.9°F (27.7°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, metabolic differences, pregnancy), and activity. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in May is 45%.

Rainfall

In Selma, during 4.6 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. In Selma, California, during the entire year, the rain falls for 60.9 days and collects up to 12.48" (317mm) of precipitation.

Daylight

The average length of the day in May is 14.1h.

Sunshine

In May, the average sunshine in Selma, California, is 11.5h.

UV index

In May, the average daily maximum UV index in Selma is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In May, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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 Selma?

In May, the average high-temperature is 81.9°F (27.7°C), and the average low-temperature is 55.6°F (13.1°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), that represents influence of the relative humidity to air temperaure, in May is calculated to 81.9°F (27.7°C).

What is the average humidity in May in Selma?

In Selma, the average relative humidity in May is 45%.

How many days does it rain in May in Selma?

In Selma, during May, the rain falls for 4.6 days and regularly aggregates up to 0.98" (25mm) of precipitation.

How many hours of daylight does Selma have in May?

In May, the average length of the day in Selma, California, is 14.1h.

How many hours of sunshine does Selma have in May?

The average sunshine in May in Selma is 11.5h.

What is the UV index intensity in May in Selma?

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

Average temperature in May
Selma, CA

Average temperature in May - Selma, CA
  • Average high temperature in May: 81.9°F

The warmest month (with the highest average high temperature) is July (100.9°F).
The month with the lowest average high temperature is December (56.5°F).

  • Average low temperature in May: 55.6°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is December (42.1°F).

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Average pressure in May
Selma, CA

Average pressure in May - Selma, CA
  • Average pressure in May: 29.93"

The month with the highest atmospheric pressure is January (30.15").
The month with the lowest atmospheric pressure is June (29.89").

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Average wind speed in May
Selma, CA

Average wind speed in May - Selma, CA
  • Average wind speed in May: 5.7mph

The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest months (with the lowest average wind speed) are January, November and December (4.2mph).

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Average humidity in May
Selma, CA

Average humidity in May - Selma, CA
  • Average humidity in May: 45%

The month with the highest relative humidity is January (67%).
The month with the lowest relative humidity is July (29%).

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Average rainfall in May
Selma, CA

Average rainfall in May - Selma, CA
  • Average rainfall in May: 0.98"

The wettest month (with the highest rainfall) is March (2.32").
The driest month (with the least rainfall) is August (0.04").

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Average rainfall days in May
Selma, CA

Average rainfall days in May - Selma, CA
  • Average rainfall days in May: 4.6 days

The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is August (0.9 days).

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

Average daylight in May / Average sunshine in May - Selma, CA
  • Average daylight in May: 14.1h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in May: 11.5h

The month with the most sunshine is July (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 6.3h).

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Average sunshine days in May
Selma, CA

Average sunshine days in May - Selma, CA
  • Average sunshine days in May: 25.3 days

The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is March (19.4 days).

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Average UV index in May
Selma, CA

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

The month with the highest UV index is July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 3).

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Average cloud cover in May
Selma, CA

Average cloud cover in May - Selma, CA
  • Average cloud cover in May: 16

The month with the most cloud cover is March (Cloud cover 29).
The month with the least cloud cover is August (Cloud cover 4).

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Average visibility in May
Selma, CA

Average visibility in May - Selma, 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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