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
Massey in May shows a temperature shift, moving from an average high of a moderate 55.9°F (13.3°C) in April to an enjoyable 67.3°F (19.6°C). In Massey, the average low-temperature during the month of May is a cool 50.4°F (10.2°C).Humidity
In May, the average relative humidity is 81%.Rainfall
The month with the most rainfall is May, when the rain falls for 18.1 days and typically aggregates up to 3.9" (99mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Massey, the average length of the day in May is 14h and 37min.On the first day of May in Massey, sunrise is at 5:56 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:32 pm CDT.
Sunshine
In Massey, Iowa, the average sunshine in May is 8.3h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 5 during May morphs into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
What is the rainiest month?
How much does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Massey have in May?
When is the highest UV index?
How high is the UV index in May?
Average temperature in May
Massey, IA
- Average high temperature in May: 67.3°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (24.6°F).
- Average low temperature in May: 50.4°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure in May
Massey, IA
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Massey, IA
- Average wind speed in May: 8.9mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in May
Massey, IA
- Average humidity in May: 81%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (75%).
Average rainfall in May
Massey, IA
- Average rainfall in May: 3.9"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in May
Massey, IA
- Average rainfall days in May: 18.1 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (4.6 days).
Average snowfall in May
Massey, IA
- Average snowfall in May: 0"
The month with the highest snowfall is January (5.08").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Massey, IA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (13.3 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
Massey, 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 6min).
- Average sunshine in May: 8h and 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Massey, IA
- Average sunshine days in May: 11.4 days
The month with the most sunshine days is December (17.3 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in May
Massey, IA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Massey, IA
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in May
Massey, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Massey, Iowa, USA
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