May weather forecastEmerson, IA
May
Weather in May
May, the last month of the spring in Emerson, is a pleasant month, with an average temperature fluctuating between 54°F (12.2°C) and 70.7°F (21.5°C).Temperature
The transition to May introduces an increase in the average high-temperature, shifting from a refreshing 61.3°F (16.3°C) in April to an agreeable 70.7°F (21.5°C). In May, the average low-temperature is a cool 54°F (12.2°C).Humidity
In May, the average relative humidity is 75%.Rainfall
In Emerson, Iowa, during May, the rain falls for 16.8 days and regularly aggregates up to 3.5" (89mm) of precipitation. In Emerson, during the entire year, the rain falls for 117.2 days and collects up to 21.77" (553mm) of precipitation.Snowfall
May through September are months without snowfall in Emerson, Iowa.Daylight
In May, the average length of the day is 14h and 30min.On the first day of May, sunrise is at 6:18 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:47 pm CDT.
Sunshine
In Emerson, the average sunshine in May is 8.6h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In May, the maximum UV index of 5 transforms into these recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Emerson, IA
- Average high temperature in May: 70.7°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in May: 54°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in May
Emerson, 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
Emerson, IA
- Average wind speed in May: 8.8mph
The windiest months (with the highest average wind speed) are March and April (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in May
Emerson, IA
- Average humidity in May: 75%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is October (68%).
Average rainfall in May
Emerson, IA
- Average rainfall in May: 3.5"
The wettest month (with the highest rainfall) is June (4.06").
The driest months (with the least rainfall) are January and February (0.63").
Average rainfall days in May
Emerson, IA
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in May
Emerson, IA
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.68").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Emerson, IA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.9 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
Emerson, IA
- Average daylight in May: 14h and 30min
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 18min).
- Average sunshine in May: 8h and 36min
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 36min).
Average sunshine days in May
Emerson, IA
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is December (23.1 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in May
Emerson, 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
Emerson, IA
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in May
Emerson, 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).
