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
May
Weather in May
Temperature
The shift from April to May sees an increase in the average high-temperature, transitioning from a refreshing 59.5°F (15.3°C) to a pleasant 69.6°F (20.9°C). During the month of May, the temperature generally drops to a low average of 52.7°F (11.5°C).Humidity
In May, the average relative humidity is 77%.Rainfall
In Dallas Center, in May, it is raining for 15.4 days, with typically 2.56" (65mm) of accumulated precipitation. Throughout the year, there are 112.7 rainfall days, and 16.06" (408mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Dallas Center, Iowa. During 0.2 snowfall days, in May, Dallas Center aggregates 0.2" (5mm) of snow. In Dallas Center, during the entire year, snow falls for 32 days and aggregates up to 7.32" (186mm) of snow.Daylight
In Dallas Center, Iowa, the average length of the day in May is 14h and 34min.On the first day of May, sunrise is at 6:11 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:43 pm CDT.
Sunshine
The average sunshine in May is 8.6h.UV index
In Dallas Center, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In May, a daily maximum UV index of 5 leads to the following instructions:
Undertake precautions - Guarding against sun damage is counselled. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May in Dallas Center?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Dallas Center have in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
Dallas Center, IA
- Average high temperature in May: 69.6°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in May: 52.7°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in May
Dallas Center, 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
Dallas Center, IA
- Average wind speed in May: 8.8mph
The windiest months (with the highest average wind speed) are January and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in May
Dallas Center, IA
- Average humidity in May: 77%
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
Dallas Center, IA
- Average rainfall in May: 2.56"
The wettest month (with the highest rainfall) is June (2.68").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in May
Dallas Center, IA
- Average rainfall days in May: 15.4 days
The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in May
Dallas Center, IA
- Average snowfall in May: 0.2"
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
Dallas Center, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Dallas Center, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Dallas Center, IA
- Average sunshine days in May: 12.4 days
The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is June (11.9 days).
Average UV index in May
Dallas Center, IA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Dallas Center, IA
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in May
Dallas Center, 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).