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
Shelley experiences a temperature shift with the start of May, with average high-temperatures moving from a cool 52.7°F (11.5°C) in April to a refreshing 63°F (17.2°C). During May, Shelley detects a significant contrast from its daytime temperatures, with nights averaging at a cold 41.2°F (5.1°C).Humidity
In Shelley, the average relative humidity in May is 53%.Rainfall
May is the month with the most rainfall. Rain falls for 15.9 days and accumulates 1.57" (40mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. May is the last month it regularly snows in Shelley. During 0.6 snowfall days, in May, Shelley aggregates 0.59" (15mm) of snow. Throughout the year, there are 75.1 snowfall days, and 30.59" (777mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 43min.On the first day of May in Shelley, sunrise is at 6:20 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 9:01 pm MDT.
Sunshine
In Shelley, the average sunshine in May is 10.8h.UV index
The average daily maximum UV index in May in Shelley, Idaho, is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 4 during May translates into the following directions:
Undertake precautions - Obligation exists to protect against skin and eye damage. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. During bright days, sunglasses that offer UVA and UVB defense are recommended. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What are May temperatures in Shelley?
What is the average humidity in May in Shelley?
What is the wettest month in Shelley?
How much does it rain in Shelley in May?
What is the last month it snows in Shelley?
What is the average length of the day in May in Shelley?
When are sunrise and sunset in May in Shelley?
How long on average sun shines in May in Shelley?
What is the UV index intensity in May in Shelley?
Average temperature in May
Shelley, ID
- Average high temperature in May: 63°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in May: 41.2°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure in May
Shelley, ID
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Shelley, ID
- Average wind speed in May: 8mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest month (with the lowest average wind speed) is January (6mph).
Average humidity in May
Shelley, ID
- Average humidity in May: 53%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are July and August (36%).
Average rainfall in May
Shelley, ID
- Average rainfall in May: 1.57"
The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in May
Shelley, 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 (6.1 days).
Average snowfall in May
Shelley, ID
- Average snowfall in May: 0.59"
The month with the highest snowfall is January (7.44").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Shelley, ID
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is December (16.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Shelley, 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: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in May
Shelley, ID
- Average sunshine days in May: 11 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is March (10 days).
Average UV index in May
Shelley, 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
Shelley, ID
- Average cloud cover in May: 26
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in May
Shelley, ID
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Shelley, Idaho, USA
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