May weather forecastSalmon, ID
May
Weather in May
May in Salmon paves the way for a complete transition from spring to early summer. Substantial changes in the weather pattern offer warmer temperatures and increased daylight hours, making it perfect for multiple outdoor activities. Peaking at 54.1°F (12.3°C), temperatures in May are a respite from the lingering cold of previous months. A significant reduction in snowfall accompanied by a slight increase in humidity is observed. Gradual immersion into summer and the consistent growth in daylight hours paint a picture of long, sunny days ahead.Temperature
An escalation in the average high-temperature is seen with the onset of May, moving from a wintry 41.9°F (5.5°C) in April to a cool 54.1°F (12.3°C). An average low-temperature of 33.8°F (1°C) is observed during May nights.Humidity
The average relative humidity in May is 64%.Rainfall
In Salmon, in May, during 18.3 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. Throughout the year, there are 129.5 rainfall days, and 12.4" (315mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 1.7 snowfall days, in May, Salmon aggregates 0.94" (24mm) of snow. Throughout the year, in Salmon, there are 63.5 snowfall days, and 22.76" (578mm) of snow is accumulated.Daylight
In Salmon, the average length of the day in May is 14h and 53min.On the first day of the month, sunrise is at 6:22 am and sunset at 8:42 pm. On the last day of May, sunrise is at 5:51 am and sunset at 9:15 pm MDT.
Sunshine
In Salmon, the average sunshine in May is 10.5h.UV index
The average daily maximum UV index in May is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum daily UV index of 3 during May morphs into the following directions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. 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
Average temperature in May
Salmon, ID
- Average high temperature in May: 54.1°F
The warmest month (with the highest average high temperature) is July (75.7°F).
The month with the lowest average high temperature is December (25.2°F).
- Average low temperature in May: 33.8°F
The month with the highest average low temperature is August (47.5°F).
The coldest months (with the lowest average low temperature) are January and December (9.5°F).
Average pressure in May
Salmon, ID
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Salmon, ID
- Average wind speed in May: 4.8mph
The windiest months (with the highest average wind speed) are March and April (5.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in May
Salmon, ID
- Average humidity in May: 64%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is August (43%).
Average rainfall in May
Salmon, ID
- Average rainfall in May: 1.89"
The wettest month (with the highest rainfall) is June (2.05").
The driest months (with the least rainfall) are July and August (0.51").
Average rainfall days in May
Salmon, ID
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in May
Salmon, ID
- Average snowfall in May: 0.94"
The month with the highest snowfall is February (5").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Salmon, ID
- Average snowfall days in May: 1.7 days
The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Salmon, ID
- Average daylight in May: 14h and 54min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 10h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in May
Salmon, ID
- Average sunshine days in May: 8.1 days
The month with the most sunshine days is July (19.4 days).
The month with the least sunshine days is April (7.7 days).
Average UV index in May
Salmon, ID
- Average UV index in May: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in May
Salmon, ID
- Average cloud cover in May: 32
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in May
Salmon, ID
- Average visibility in May: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
