Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The start of May brings a subtle shift in the average high-temperature, edging up from April's agreeable 71.2°F (21.8°C) to a moderately hot 80.1°F (26.7°C). The average low-temperature, in May, is a refreshing 64°F (17.8°C).Humidity
In May, the average relative humidity is 75%.Rainfall
In Helena, in May, during 12 rainfall days, 1.54" (39mm) of precipitation is typically accumulated. In Helena, during the entire year, the rain falls for 123 days and collects up to 16.02" (407mm) of precipitation.Snowfall
March through November are months without snowfall in Helena.Daylight
In Helena, the average length of the day in May is 13h and 59min.On the first day of the month, sunrise is at 6:11 am and sunset at 7:47 pm. On the last day of May, in Helena, Arkansas, sunrise is at 5:50 am and sunset at 8:09 pm CDT.
Sunshine
The average sunshine in May in Helena is 9.7h.UV index
In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 6 in May transforms into this advice:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Helena?
What is the average humidity in May in Helena?
How many days does it rain in May in Helena?
When it does not snow in Helena?
What is the average length of the day in May in Helena?
What time are sunrise and sunset in May in Helena?
How many hours of sunshine does Helena have in May?
What is the UV index reading in May in Helena?
Average temperature in May
Helena, AR
- Average high temperature in May: 80.1°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (48°F).
- Average low temperature in May: 64°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).
Average pressure in May
Helena, AR
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Helena, AR
- Average wind speed in May: 7.3mph
The windiest month (with the highest average wind speed) is February (9.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Helena, AR
- Average humidity in May: 75%
The months with the highest relative humidity are March and December (78%).
The month with the lowest relative humidity is October (67%).
Average rainfall in May
Helena, AR
- Average rainfall in May: 1.54"
The wettest month (with the highest rainfall) is April (1.89").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in May
Helena, AR
- Average rainfall days in May: 12 days
The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is November (6.7 days).
Average snowfall in May
Helena, AR
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.28").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Helena, AR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Helena, AR
- 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: 9h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in May
Helena, AR
- Average sunshine days in May: 16.5 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in May
Helena, AR
- Average UV index in May: 6
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in May
Helena, AR
- Average cloud cover in May: 33
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in May
Helena, AR
- 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).
Helena, Arkansas, USA
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