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
In Downey, stepping into May brings a temperature increase, moving up from April's fresh 51.8°F (11°C) to a comfortable 62.2°F (16.8°C). During May, Downey detects a significant contrast from its daytime temperatures, with nights averaging at an icy 39.2°F (4°C).Humidity
The average relative humidity in May is 57%.Rainfall
In Downey, during May, the rain falls for 15.9 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Downey, during the entire year, the rain falls for 118.3 days and collects up to 16.42" (417mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. May is the last month it regularly snows. During 0.6 snowfall days, in May, Downey aggregates 0.47" (12mm) of snow. Throughout the year, there are 68.7 snowfall days, and 48.82" (1240mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 38min.On the first day of May, sunrise is at 6:22 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 8:58 pm MDT.
Sunshine
In Downey, the average sunshine in May is 10.8h.UV index
In Downey, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high UV index of 4 in May translates into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Downey?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows in Downey?
What is the average length of the day in May?
When 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
Downey, ID
- Average high temperature in May: 62.2°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is December (28.9°F).
- Average low temperature in May: 39.2°F
The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in May
Downey, ID
- Average pressure in May: 29.9"Hg
The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Downey, ID
- Average wind speed in May: 6.1mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).
Average humidity in May
Downey, ID
- Average humidity in May: 57%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (35%).
Average rainfall in May
Downey, ID
- Average rainfall in May: 1.81"
The wettest month (with the highest rainfall) is February (2.05").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days in May
Downey, ID
- Average rainfall days in May: 15.9 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in May
Downey, ID
- Average snowfall in May: 0.47"
The month with the highest snowfall is January (13.78").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Downey, ID
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Downey, ID
- 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: 10h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in May
Downey, ID
- Average sunshine days in May: 11.7 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is February (9.9 days).
Average UV index in May
Downey, ID
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Downey, ID
- Average cloud cover in May: 26
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
Downey, 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).
Downey, Idaho, USA
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