May weather forecast
Washington, LA

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Weather in May

The last month of the spring, May, is also a moderately hot month in Washington, Louisiana, with an average temperature ranging between min 65.8°F (18.8°C) and max 84.6°F (29.2°C).

Temperature

May's arrival is noted with a slight increase in the average high-temperature, moving from a moderately hot 77.5°F (25.3°C) in April to a still warm 84.6°F (29.2°C). The average low-temperature during May nights is an enjoyable 65.8°F (18.8°C).

Heat index

The heat index value during May is appraised at a fiery hot 95°F (35°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In May, the average relative humidity is 77%.

Rainfall

In Washington, during May, the rain falls for 10.1 days and regularly aggregates up to 0.94" (24mm) of precipitation. Throughout the year, there are 127.3 rainfall days, and 11.65" (296mm) of precipitation is accumulated.

Snowfall

In Washington, snow does not fall in February through November.

Daylight

The average length of the day in May is 13h and 43min.
On the first day of the month, sunrise is at 6:23 am and sunset at 7:46 pm. On the last day of May, sunrise is at 6:06 am and sunset at 8:05 pm CDT.

Sunshine

In May, the average sunshine in Washington is 9.7h.

UV index

In Washington, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 6 in May converts into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Updated: Jun 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in May?

An average high-temperature, in May, in Washington, is 84.6°F (29.2°C) and the average low-temperature is 65.8°F (18.8°C). In May, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is appraised at 95°F (35°C).

What is the average humidity in May?

In May, the average relative humidity is 77%.

How much does it rain in May?

In Washington, in May, it is raining for 10.1 days, with typically 0.94" (24mm) of accumulated precipitation.

When it does not snow?

February through November are months without snowfall.

How many hours of daylight does Washington have in May?

In May, the average day length is 13h and 43min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 6:23 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 8:05 pm CDT.

How long on average sun shines in May in Washington?

In May, the average sunshine duration is 9.7h.

How high is the UV index in May?

The average daily maximum UV index in May in Washington is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Washington, LA

Average temperature in May - Washington, LA
  • Average high temperature in May: 84.6°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (57.7°F).

  • Average low temperature in May: 65.8°F

The month with the highest average low temperature is August (73.8°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

Average pressure in May
Washington, LA

Average pressure in May - Washington, LA
  • Average pressure in May: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in May
Washington, LA

Average wind speed in May - Washington, LA
  • Average wind speed in May: 6.4mph

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest month (with the lowest average wind speed) is July (5mph).

Average humidity in May
Washington, LA

Average humidity in May - Washington, LA
  • Average humidity in May: 77%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in May
Washington, LA

Average rainfall in May - Washington, LA
  • Average rainfall in May: 0.94"

The wettest months (with the highest rainfall) are July and August (1.57").
The driest months (with the least rainfall) are February and March (0.63").

Average rainfall days in May
Washington, LA

Average rainfall days in May - Washington, LA
  • Average rainfall days in May: 10.1 days

The month with the highest number of rainy days is August (15.9 days).
The month with the least rainy days is November (6.6 days).

Average snowfall in May
Washington, LA

Average snowfall in May - Washington, LA
  • Average snowfall in May: 0"

The months with the highest snowfall are January and December (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Washington, LA

Average snowfall days in May - Washington, LA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in May /
Average sunshine in May
Washington, LA

Average daylight in May / Average sunshine in May - Washington, LA
  • Average daylight in May: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in May: 9h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in May
Washington, LA

Average sunshine days in May - Washington, LA
  • Average sunshine days in May: 18.3 days

The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is August (10.7 days).

Average UV index in May
Washington, LA

Average UV index in May - Washington, LA
  • Average UV index in May: 6

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in May
Washington, LA

Average cloud cover in May - Washington, LA
  • Average cloud cover in May: 35

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 28).

Average visibility in May
Washington, LA

Average visibility in May - Washington, LA
  • Average visibility in May: 5mi

The months with the highest visibility are January, February, October, November and December (6mi).
The months with the lowest visibility are March, April, May, June, July, August and September (5mi).

Washington, Louisiana, USA

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