May weather forecast
Selma, CA

Share

Weather in May

May, the last month of the spring in Selma, is another warm month, with an average temperature fluctuating between 81.9°F (27.7°C) and 55.6°F (13.1°C).

Temperature

With the transition into May, Selma experiences a subtle uplift in average high-temperatures, adjusting from 73.6°F (23.1°C) in April to a still warm 81.9°F (27.7°C). Selma records a significant temperature drop in May nights, lowering to an average of 55.6°F (13.1°C).

Heat index

Throughout May, the heat index is evaluated at 82.4°F (28°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.
Understand that the heat index values take into account shaded locations and mild winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

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

Rainfall

In Selma, during May, the rain falls for 4.6 days and regularly aggregates up to 0.98" (25mm) of precipitation. In Selma, during the entire year, the rain falls for 60.9 days and collects up to 12.48" (317mm) of precipitation.

Daylight

In Selma, the average length of the day in May is 14h and 8min.
On the first day of the month, sunrise is at 6:03 am and sunset at 7:47 pm. On the last day of May, sunrise is at 5:41 am and sunset at 8:11 pm PDT.

Sunshine

The average sunshine in May is 11.5h.

UV index

The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In May, a regular UV index of 6 translates into these guidelines:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.

Frequently asked questions

What is the average May temperature?

In May, the average high-temperature and low-temperature are 81.9°F (27.7°C) and 55.6°F (13.1°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in May is evaluated at 82.4°F (28°C).

What is the average humidity in May?

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

How much does it rain in May?

In May, the rain falls for 4.6 days. Throughout May, 0.98" (25mm) of precipitation is accumulated.

What is the average length of the day in May?

The average day length in May is 14h and 8min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:03 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:11 pm PDT.

How many hours of sunshine does Selma have in May?

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

What is the UV index intensity in May?

In May, the average daily maximum UV index in Selma is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
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).

Average pressure in May
Selma, CA

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

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

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).

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%).

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").

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).

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

Average daylight in May / Average sunshine in May - Selma, CA
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in May: 11h and 3min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).

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).

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).
The months with the lowest UV index are January, November and December (UV index 3).

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).

Average visibility in May
Selma, CA

Average visibility in May - Selma, 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).

Selma, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location