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's arrival signals a temperature shift, moving from a cool 54.5°F (12.5°C) in April to an enjoyable 66.6°F (19.2°C). Throughout the month of May, Navan reports a steady low-temperature average of 49.8°F (9.9°C).Humidity
In Navan, the average relative humidity in May is 80%.Rainfall
In Navan, during May, the rain falls for 19.8 days and regularly aggregates up to 4.37" (111mm) of precipitation. Throughout the year, there are 146.5 rainfall days, and 31.3" (795mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Navan. During 0.3 snowfall days, in May, Navan aggregates 0.2" (5mm) of snow. In Navan, during the entire year, snow falls for 59.9 days and aggregates up to 24.84" (631mm) of snow.Daylight
In May, the average length of the day in Navan is 14h and 41min.On the first day of the month, sunrise is at 6:00 am and sunset at 8:09 pm. On the last day of May, in Navan, Iowa, sunrise is at 5:31 am and sunset at 8:40 pm CDT.
Sunshine
In May, the average sunshine is 8.1h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Navan. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 5 during May morphs into the following directions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Enhance your sun protection with tightly woven, yet airy clothing. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Navan?
What is the average humidity in May in Navan?
How many days does it rain in May in Navan?
What is the last month it snows in Navan?
How many hours of daylight does Navan have in May?
What time are sunrise and sunset in May in Navan?
How long on average sun shines in May in Navan?
What is the month with the highest UV index in Navan?
How high is the UV index in May in Navan?
Average temperature in May
Navan, IA
- Average high temperature in May: 66.6°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.8°F).
- Average low temperature in May: 49.8°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in May
Navan, IA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Navan, IA
- Average wind speed in May: 9.3mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in May
Navan, IA
- Average humidity in May: 80%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in May
Navan, IA
- Average rainfall in May: 4.37"
The wettest month (with the highest rainfall) is June (5.08").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in May
Navan, IA
- Average rainfall days in May: 19.8 days
The months with the highest number of rainy days are May and June (19.8 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in May
Navan, IA
- Average snowfall in May: 0.2"
The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Navan, IA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Navan, IA
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Navan, IA
- Average sunshine days in May: 9 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (7.9 days).
Average UV index in May
Navan, 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
Navan, IA
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
Navan, IA
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
Navan, Iowa, USA
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