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
As May arrives, Lewisville's weather shows an increase in high-temperatures, moving from April's fresh 52.3°F (11.3°C) to an enjoyable 63.5°F (17.5°C). The month of May sees a significant daily temperature drop, recording an average low-temperature of 40.1°F (4.5°C).Humidity
In Lewisville, Idaho, the average relative humidity in May is 54%.Rainfall
The month with the most rainfall is May, when the rain falls for 12.8 days and typically aggregates up to 1.26" (32mm) of precipitation.Snowfall
Months with snowfall in Lewisville are January through May, September through December. May is the last month it regularly snows. During 0.6 snowfall days, in May, Lewisville aggregates 0.67" (17mm) of snow. In Lewisville, during the entire year, snow falls for 79 days and aggregates up to 31.54" (801mm) of snow.Daylight
In Lewisville, the average length of the day in May is 14h and 45min.On the first day of the month, sunrise is at 6:18 am and sunset at 8:31 pm. On the last day of May, sunrise is at 5:49 am and sunset at 9:02 pm MDT.
Sunshine
In Lewisville, the average sunshine in May is 10.9h.UV index
The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: An average UV index of 4 in May transforms into this advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from 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?
What is the wettest month?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Lewisville 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
Lewisville, ID
- Average high temperature in May: 63.5°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is December (27.1°F).
- Average low temperature in May: 40.1°F
The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure in May
Lewisville, ID
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Lewisville, ID
- Average wind speed in May: 7.4mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).
Average humidity in May
Lewisville, ID
- Average humidity in May: 54%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (37%).
Average rainfall in May
Lewisville, ID
- Average rainfall in May: 1.26"
The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in May
Lewisville, ID
- Average rainfall days in May: 12.8 days
The month with the highest number of rainy days is April (14.2 days).
The month with the least rainy days is July (5.8 days).
Average snowfall in May
Lewisville, ID
- Average snowfall in May: 0.67"
The month with the highest snowfall is January (8.31").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Lewisville, ID
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Lewisville, ID
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 10h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in May
Lewisville, ID
- Average sunshine days in May: 14.8 days
The month with the most sunshine days is July (22.3 days).
The month with the least sunshine days is February (9.9 days).
Average UV index in May
Lewisville, ID
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Lewisville, ID
- Average cloud cover in May: 25
The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in May
Lewisville, ID
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
Lewisville, Idaho, USA
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