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 onset of May marks an increase in the average high-temperature, moving from a refreshing 59.2°F (15.1°C) in April to an agreeable 69.3°F (20.7°C). During May, the nighttime temperature in Dexter, Iowa, averages of 52.3°F (11.3°C).Humidity
In May, the average relative humidity is 78%.Rainfall
In Dexter, during May, the rain falls for 16.4 days and regularly aggregates up to 3.07" (78mm) of precipitation. Throughout the year, there are 117.3 rainfall days, and 19.09" (485mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Dexter. May is the last month it regularly snows in Dexter. During 0.2 snowfall days, in May, Dexter aggregates 0.2" (5mm) of snow. Throughout the year, in Dexter, there are 31.7 snowfall days, and 9.29" (236mm) of snow is accumulated.Daylight
In Dexter, the average length of the day in May is 14h and 32min.On the first day of May in Dexter, sunrise is at 6:12 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:44 pm CDT.
Sunshine
In May, the average sunshine in Dexter, Iowa, is 8.5h.UV index
In Dexter, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Take necessary precautions - Suggestions to elude sunburn are provided. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Experience reduced UV exposure by about half when donning a wide-brim hat. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
What is the average May temperature in Dexter?
What is the average humidity in May in Dexter?
How many days does it rain in May in Dexter?
What is the last month it snows in Dexter?
How many hours of daylight does Dexter have in May?
What time are sunrise and sunset in May in Dexter?
How many hours of sunshine does Dexter have in May?
How high is the UV index in May in Dexter?
Average temperature in May
Dexter, IA
- Average high temperature in May: 69.3°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in May: 52.3°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
Dexter, IA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Dexter, IA
- Average wind speed in May: 8.9mph
The windiest months (with the highest average wind speed) are January and February (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in May
Dexter, IA
- Average humidity in May: 78%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in May
Dexter, IA
- Average rainfall in May: 3.07"
The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in May
Dexter, IA
- Average rainfall days in May: 16.4 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in May
Dexter, IA
- Average snowfall in May: 0.2"
The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Dexter, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Dexter, IA
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Dexter, IA
- Average sunshine days in May: 12.1 days
The month with the most sunshine days is December (22 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in May
Dexter, 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 and December (UV index 1).
Average cloud cover in May
Dexter, IA
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in May
Dexter, IA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Dexter, Iowa, USA
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