May weather forecastMeridian, ID
May
Weather in May
With sunshine dominating the sky for about 14.7 hours, May certainly brightens up Meridian. A notable shift away from the brisk weather of earlier months is evident as temperatures soar into the high 60s°F. By the wrap of the month, the citizens brace themselves for the warmer and less humid days that June will bring. Therefore, May signifies the defining end of spring, with the city poised on the brink of summer.Temperature
As May arrives, Meridian's weather shows an increase in high-temperatures, moving from April's mild 59.5°F (15.3°C) to a pleasant 69.3°F (20.7°C). From the heights of the May heat, Meridian records a mean nighttime low of 46.6°F (8.1°C).Humidity
In May, the average relative humidity is 49%.Rainfall
In Meridian, Idaho, in May, it is raining for 10.4 days, with typically 1.18" (30mm) of accumulated precipitation. Throughout the year, there are 112.8 rainfall days, and 12.48" (317mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in May is 14h and 44min.On the first day of May, sunrise is at 6:36 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 9:19 pm MDT.
Sunshine
In Meridian, the average sunshine in May is 11h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Meridian, ID
- Average high temperature in May: 69.3°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is December (36°F).
- Average low temperature in May: 46.6°F
The month with the highest average low temperature is August (62.2°F).
The coldest month (with the lowest average low temperature) is December (24.6°F).
Average pressure in May
Meridian, ID
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Meridian, ID
- Average wind speed in May: 6.5mph
The windiest months (with the highest average wind speed) are March and April (7.3mph).
The calmest month (with the lowest average wind speed) is January (5.4mph).
Average humidity in May
Meridian, ID
- Average humidity in May: 49%
The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are July and August (30%).
Average rainfall in May
Meridian, ID
- Average rainfall in May: 1.18"
The wettest month (with the highest rainfall) is March (1.97").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in May
Meridian, ID
- Average rainfall days in May: 10.4 days
The month with the highest number of rainy days is March (16.2 days).
The month with the least rainy days is July (3.2 days).
Average snowfall in May
Meridian, ID
- Average snowfall in May: 0"
The month with the highest snowfall is December (4.88").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Meridian, ID
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is December (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Meridian, ID
- Average daylight in May: 14h and 42min
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: 11h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in May
Meridian, ID
- Average sunshine days in May: 16.3 days
The month with the most sunshine days is July (25.4 days).
The month with the least sunshine days is March (12.3 days).
Average UV index in May
Meridian, ID
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Meridian, ID
- Average cloud cover in May: 23
The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in May
Meridian, ID
- 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).
