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 brings a temperature change, with average high-temperatures moving from April's refreshing 56.8°F (13.8°C) to a pleasant 68.4°F (20.2°C). An average nighttime temperature of 51.8°F (11°C) is witnessed throughout May.Humidity
The average relative humidity in May in Holland is 77%.Rainfall
May is the month with the most rainfall. Rain falls for 18.5 days and accumulates 4.45" (113mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Holland. May is the last month it regularly snows. During 0.2 snowfall days, in May, Holland aggregates 0.31" (8mm) of snow. Throughout the year, there are 42.6 snowfall days, and 17.36" (441mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 37min.On the first day of May, sunrise is at 6:05 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:41 pm CDT.
Sunshine
In Holland, the average sunshine in May is 8.6h.UV index
In Holland, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 5 in May leads to these recommendations:
Make use of precautions - It is urged to ward off sun damage. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Boost your sun resistance with garments that are densely woven yet spacious. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
What is the rainiest month?
How many days does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
What is the UV index intensity in May in Holland?
Average temperature in May
Holland, IA
- Average high temperature in May: 68.4°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in May: 51.8°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in May
Holland, IA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Holland, IA
- Average wind speed in May: 9.3mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in May
Holland, IA
- Average humidity in May: 77%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Holland, IA
- Average rainfall in May: 4.45"
The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in May
Holland, IA
- Average rainfall days in May: 18.5 days
The month with the highest number of rainy days is June (18.6 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in May
Holland, IA
- Average snowfall in May: 0.31"
The month with the highest snowfall is February (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Holland, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Holland, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
Holland, IA
- Average sunshine days in May: 10.6 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in May
Holland, IA
- Average UV index in May: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Holland, IA
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in May
Holland, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Holland, Iowa, USA
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