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 beginning of May signals a rise in the average high-temperature, moving from an enjoyable 62.4°F (16.9°C) in April to a pleasant 72°F (22.2°C). The nighttime temperature, during May, averages of 54.5°F (12.5°C).Humidity
The average relative humidity in May is 73%.Rainfall
In Percival, Iowa, in May, it is raining for 16.9 days, with typically 4.17" (106mm) of accumulated precipitation. Throughout the year, there are 125.7 rainfall days, and 26.73" (679mm) of precipitation is accumulated.Snowfall
In Percival, Iowa, snow does not fall in May through September.Daylight
The average length of the day in May in Percival is 14h and 28min.On the first day of the month, sunrise is at 6:20 am and sunset at 8:19 pm. On the last day of May, sunrise is at 5:54 am and sunset at 8:47 pm CDT.
Sunshine
The average sunshine in May is 8.9h.UV index
In May, the average daily maximum UV index in Percival is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
What are the temperatures in Percival in May?
What is the average humidity in May in Percival?
How many days does it rain in May in Percival?
When it does not snow in Percival?
Does it snow in Percival in May?
How many hours of daylight does Percival have in May?
When are sunrise and sunset in May in Percival?
How many hours of sunshine does Percival have in May?
What is the UV index intensity in May in Percival?
Average temperature in May
Percival, IA
- Average high temperature in May: 72°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in May: 54.5°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in May
Percival, IA
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in May
Percival, IA
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in May
Percival, IA
- Average humidity in May: 73%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is October (66%).
Average rainfall in May
Percival, IA
- Average rainfall in May: 4.17"
The wettest month (with the highest rainfall) is June (4.29").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in May
Percival, IA
- Average rainfall days in May: 16.9 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in May
Percival, IA
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.07").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Percival, IA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Percival, IA
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in May
Percival, IA
- Average sunshine days in May: 12.6 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in May
Percival, IA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Percival, IA
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in May
Percival, IA
- 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).
Percival, Iowa, USA
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