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
The arrival of May brings a change in Declo's weather, with average high-temperatures moving from April's mild 55.6°F (13.1°C) to an enjoyable 66.6°F (19.2°C). Declo's average low-temperature of 44.1°F (6.7°C) in May reflects a considerable decline from the daytime peak.Humidity
The average relative humidity in May is 47%.Rainfall
In May, the rain falls for 12.3 days. Throughout May, 1.06" (27mm) of precipitation is accumulated. In Declo, during the entire year, the rain falls for 105.2 days and collects up to 10.63" (270mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Declo. May is the last month it regularly snows in Declo. During 0.6 snowfall days, in May, Declo aggregates 0.35" (9mm) of snow. In Declo, during the entire year, snow falls for 50.9 days and aggregates up to 24.57" (624mm) of snow.Daylight
The average length of the day in May in Declo is 14h and 38min.On the first day of the month, sunrise is at 6:28 am and sunset at 8:35 pm. On the last day of May, sunrise is at 5:59 am and sunset at 9:04 pm MDT.
Sunshine
The average sunshine in May in Declo is 10.9h.UV index
The average daily maximum UV index in May in Declo is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: During May, 5 as the daily maximum UV index converts into the following advice:
Take necessary precautions - Suggestions to elude sunburn are provided. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
What is the temperature in May in Declo?
What is the average humidity in May in Declo?
How many days does it rain in May in Declo?
What is the last month it snows in Declo?
How many hours of daylight does Declo have in May?
What time are sunrise and sunset in May in Declo?
How many hours of sunshine does Declo have in May?
What is the UV index reading in May in Declo?
Average temperature in May
Declo, ID
- Average high temperature in May: 66.6°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (32.5°F).
- Average low temperature in May: 44.1°F
The months with the highest average low temperature are July and August (60.8°F).
The coldest month (with the lowest average low temperature) is December (21.6°F).
Average pressure in May
Declo, ID
- Average pressure in May: 29.89"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in May
Declo, ID
- Average wind speed in May: 8.3mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is January (7.1mph).
Average humidity in May
Declo, ID
- Average humidity in May: 47%
The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (30%).
Average rainfall in May
Declo, ID
- Average rainfall in May: 1.06"
The wettest month (with the highest rainfall) is March (1.46").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in May
Declo, ID
- Average rainfall days in May: 12.3 days
The months with the highest number of rainy days are March and April (14 days).
The months with the least rainy days are July and August (5.2 days).
Average snowfall in May
Declo, ID
- Average snowfall in May: 0.35"
The month with the highest snowfall is December (6.54").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Declo, ID
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is December (13 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Declo, ID
- 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: 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: 5h and 42min).
Average sunshine days in May
Declo, ID
- Average sunshine days in May: 15.5 days
The month with the most sunshine days is July (22.6 days).
The month with the least sunshine days is March (12 days).
Average UV index in May
Declo, ID
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Declo, ID
- Average cloud cover in May: 24
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 11).
Average visibility in May
Declo, ID
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Declo, Idaho, USA
Weather forecast for your location
2. Allow the app to use your location
