May weather forecast
Simpson, LA

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Weather in May

May, the last month of the spring in Simpson, is another warm month, with an average temperature ranging between max 85.1°F (29.5°C) and min 64.9°F (18.3°C).

Temperature

The shift from April to May introduces a subtle increase in the average high-temperature, moving from 77.5°F (25.3°C) to a still moderately hot 85.1°F (29.5°C). In Simpson, May's nights observe an average temperature dip to an enjoyable 64.9°F (18.3°C).

Heat index

In May, the heat index is evaluated at a very hot 95°F (35°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In May, the average relative humidity is 75%.

Rainfall

In May, the rain falls for 13.3 days. Throughout May, 2.4" (61mm) of precipitation is accumulated. Throughout the year, in Simpson, there are 156.9 rainfall days, and 25.98" (660mm) of precipitation is accumulated.

Snowfall

In Simpson, snow does not fall in March through November.

Daylight

In Simpson, the average length of the day in May is 13h and 45min.
On the first day of the month, sunrise is at 6:26 am and sunset at 7:51 pm. On the last day of May, sunrise is at 6:08 am and sunset at 8:11 pm CDT.

Sunshine

In May, the average sunshine is 9.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 in May interprets into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

How hot is May?

In May, in Simpson, the average high-temperature is 85.1°F (29.5°C), and the average low-temperature is 64.9°F (18.3°C). In May, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 95°F (35°C).

What is the average humidity in May?

In Simpson, the average relative humidity in May is 75%.

How much does it rain in May?

In Simpson, during May, the rain falls for 13.3 days and regularly aggregates up to 2.4" (61mm) of precipitation.

When it does not snow?

In Simpson, Louisiana, snow does not fall in March through November.

How many hours of daylight does Simpson have in May?

The average day length in May is 13h and 45min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:26 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:11 pm CDT.

How long on average sun shines in May?

In Simpson, the average sunshine duration in May is 9.4h.

What are the months with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 7.

What is the UV index intensity in May?

The average daily maximum UV index in May in Simpson is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from unprotected exposure to 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
Simpson, LA

Average temperature in May - Simpson, LA
  • Average high temperature in May: 85.1°F

The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in May: 64.9°F

The month with the highest average low temperature is August (73.2°F).
The coldest month (with the lowest average low temperature) is January (41°F).

Average pressure in May
Simpson, LA

Average pressure in May - Simpson, LA
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in May
Simpson, LA

Average wind speed in May - Simpson, LA
  • Average wind speed in May: 6.3mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).

Average humidity in May
Simpson, LA

Average humidity in May - Simpson, LA
  • Average humidity in May: 75%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Simpson, LA

Average rainfall in May - Simpson, LA
  • Average rainfall in May: 2.4"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is November (1.34").

Average rainfall days in May
Simpson, LA

Average rainfall days in May - Simpson, LA
  • Average rainfall days in May: 13.3 days

The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is November (8.2 days).

Average snowfall in May
Simpson, LA

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

The month with the highest snowfall is January (0.51").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Simpson, LA

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

The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).

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

Average daylight in May / Average sunshine in May - Simpson, LA
  • Average daylight in May: 13h and 5min

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 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in May
Simpson, LA

Average sunshine days in May - Simpson, LA
  • Average sunshine days in May: 14.7 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is August (9.8 days).

Average UV index in May
Simpson, LA

Average UV index in May - Simpson, LA
  • Average UV index in May: 7

The months with the highest UV index are May, 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
Simpson, LA

Average cloud cover in May - Simpson, LA
  • Average cloud cover in May: 39

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is October (Cloud cover 30).

Average visibility in May
Simpson, LA

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

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

Simpson, Louisiana, USA

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