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 shift into May is characterized by a rise in the average high-temperature, transitioning from April's cold 41.7°F (5.4°C) to a cool 53.6°F (12°C). Throughout May nights, Riggins reports a steady thermal contrast from the day, with an average low-temperature of 31.6°F (-0.2°C).Humidity
The average relative humidity in May is 75%.Rainfall
In Riggins, Idaho, in May, during 15.3 rainfall days, 3.39" (86mm) of precipitation is typically accumulated. Throughout the year, there are 81 rainfall days, and 32.68" (830mm) of precipitation is accumulated.Snowfall
Months with snowfall in Riggins are January through December. In Riggins, in May, snow falls for 11.5 days, with typically accumulated 11.5" (292mm) of snow. Throughout the year, there are 160 snowfall days, and 210.63" (5350mm) of snow is accumulated.Daylight
In Riggins, the average length of the day in May is 14h and 55min.On the first day of May, sunrise is at 5:32 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:00 am and sunset at 8:26 pm PDT.
Sunshine
The average sunshine in May is 8.7h.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 exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 3 in May leads to these guidelines:
Ensure safety - Sun damage prevention is strongly urged. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Riggins in May?
What is the average humidity in May?
How many days does it rain in May?
How much does it snow in May?
What is the average length of the day in May in Riggins?
When are sunrise and sunset in May?
How long on average sun shines in May?
What is the UV index intensity in May?
Average temperature in May
Riggins, ID
- Average high temperature in May: 53.6°F
The warmest months (with the highest average high temperature) are July and August (75.7°F).
The month with the lowest average high temperature is December (25.3°F).
- Average low temperature in May: 31.6°F
The month with the highest average low temperature is August (45.7°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in May
Riggins, ID
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Riggins, ID
- Average wind speed in May: 5.3mph
The windiest month (with the highest average wind speed) is March (6mph).
The calmest months (with the lowest average wind speed) are May, June, August and September (5.3mph).
Average humidity in May
Riggins, ID
- Average humidity in May: 75%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (48%).
Average rainfall in May
Riggins, ID
- Average rainfall in May: 3.39"
The wettest month (with the highest rainfall) is February (4.49").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in May
Riggins, ID
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (1.8 days).
Average snowfall in May
Riggins, ID
- Average snowfall in May: 11.5"
The month with the highest snowfall is February (36.1").
The month with the least snowfall is August (0.08").
Average snowfall days in May
Riggins, ID
- Average snowfall days in May: 11.5 days
The month with the highest number of snowfall days is March (24.9 days).
The month with the least snowfall days is August (0.3 days).
Average daylight in May /
Average sunshine in May
Riggins, ID
- Average daylight in May: 14h and 5min
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: 8h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in May
Riggins, ID
- Average sunshine days in May: 8.6 days
The month with the most sunshine days is July (22.3 days).
The months with the least sunshine days are February and March (6.3 days).
Average UV index in May
Riggins, 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, March, April, November and December (UV index 1).
Average cloud cover in May
Riggins, ID
- Average cloud cover in May: 44
The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in May
Riggins, ID
- Average visibility in May: 5mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).
Riggins, Idaho, USA
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