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
May's onset brings a rise in the average high-temperature, moving from a refreshing 58.8°F (14.9°C) in April to an agreeable 69.4°F (20.8°C). During May, the nighttime temperature averages to a fresh 52.9°F (11.6°C).Humidity
In May, the average relative humidity is 73%.Rainfall
In Irwin, in May, it is raining for 15.7 days, with typically 2.6" (66mm) of accumulated precipitation. Throughout the year, there are 113.5 rainfall days, and 15.71" (399mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Irwin aggregates 0.16" (4mm) of snow. In Irwin, during the entire year, snow falls for 31.5 days and aggregates up to 7.13" (181mm) of snow.Daylight
The average length of the day in May is 14h and 34min.On the first day of May, sunrise is at 6:15 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:48 pm CDT.
Sunshine
In May, the average sunshine is 8.8h.UV index
In Irwin, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Prioritize safety - Suggestions to prevent sun damage are offered. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Irwin in May?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
When are sunrise and sunset in May?
How long on average sun shines in May?
How high is the UV index in May?
Average temperature in May
Irwin, IA
- Average high temperature in May: 69.4°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in May: 52.9°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure in May
Irwin, IA
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in May
Irwin, IA
- Average wind speed in May: 9.3mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in May
Irwin, IA
- Average humidity in May: 73%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (68%).
Average rainfall in May
Irwin, IA
- Average rainfall in May: 2.6"
The wettest month (with the highest rainfall) is June (2.64").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in May
Irwin, IA
- Average rainfall days in May: 15.7 days
The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in May
Irwin, IA
- Average snowfall in May: 0.16"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Irwin, IA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Irwin, IA
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in May
Irwin, IA
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in May
Irwin, 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, October, November and December (UV index 2).
Average cloud cover in May
Irwin, IA
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in May
Irwin, 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).
Irwin, Iowa, USA
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