May weather forecastElk River, ID
May
Weather in May
The last month of the spring, May, is an enjoyable month in Elk River, Idaho, with an average temperature fluctuating between 38.1°F (3.4°C) and 63.5°F (17.5°C).Temperature
In Elk River, the onset of May comes with an increased average high-temperature, moving from April's cool 53.2°F (11.8°C) to a refreshing 63.5°F (17.5°C). Elk River experiences a drastic reduction from day temperatures to an average low of 38.1°F (3.4°C) in May.Humidity
In May, the average relative humidity is 73%.Rainfall
In Elk River, during May, the rain falls for 13 days and regularly aggregates up to 1.42" (36mm) of precipitation. Throughout the year, there are 147.4 rainfall days, and 14.72" (374mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in May is 15h and 4min.On the first day of May, sunrise is at 5:28 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 4:54 am and sunset at 8:30 pm PDT.
Sunshine
In May, the average sunshine is 9.8h.UV index
In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 4 during May translates into the following guidance:
Prioritize safety - Suggestions to prevent sun damage are offered. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. 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
Average temperature in May
Elk River, ID
- Average high temperature in May: 63.5°F
The warmest month (with the highest average high temperature) is August (83.5°F).
The month with the lowest average high temperature is December (33.1°F).
- Average low temperature in May: 38.1°F
The month with the highest average low temperature is August (51.3°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).
Average pressure in May
Elk River, ID
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in May
Elk River, ID
- Average wind speed in May: 4mph
The windiest month (with the highest average wind speed) is April (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).
Average humidity in May
Elk River, ID
- Average humidity in May: 73%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (48%).
Average rainfall in May
Elk River, ID
- Average rainfall in May: 1.42"
The wettest month (with the highest rainfall) is January (1.69").
The driest month (with the least rainfall) is August (0.35").
Average rainfall days in May
Elk River, ID
- Average rainfall days in May: 13 days
The month with the highest number of rainy days is March (17.7 days).
The month with the least rainy days is August (4.9 days).
Average snowfall in May
Elk River, ID
- Average snowfall in May: 0"
The month with the highest snowfall is December (3.74").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Elk River, ID
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is December (9.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Elk River, ID
- Average daylight in May: 15h and 6min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in May: 9h and 48min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 4h and 6min).
Average sunshine days in May
Elk River, ID
- Average sunshine days in May: 15.3 days
The month with the most sunshine days is August (23.5 days).
The month with the least sunshine days is February (9.1 days).
Average UV index in May
Elk River, 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, February, November and December (UV index 1).
Average cloud cover in May
Elk River, ID
- Average cloud cover in May: 35
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in May
Elk River, 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 and December (4mi).





