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
May's arrival coincides with a temperature rise, moving from April's mild 56.8°F (13.8°C) to a still refreshing 66.2°F (19°C). During the nights in May, Ione experiences a consistent average temperature of 45.5°F (7.5°C).Humidity
In Ione, the average relative humidity in May is 57%.Rainfall
In Ione, during May, the rain falls for 12.3 days and regularly aggregates up to 1.18" (30mm) of precipitation. Throughout the year, there are 131.9 rainfall days, and 13.54" (344mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Ione aggregates 0.04" (1mm) of snow. Throughout the year, there are 31.3 snowfall days, and 18.54" (471mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 56min.On the first day of the month, sunrise is at 5:45 am and sunset at 8:06 pm. On the last day of May, in Ione, sunrise is at 5:13 am and sunset at 8:40 pm PDT.
Sunshine
In May, the average sunshine is 10.9h.UV index
In Ione, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A typical high UV index of 4 in May suggests the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Ione in May?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
Ione, OR
- Average high temperature in May: 66.2°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (37.9°F).
- Average low temperature in May: 45.5°F
The month with the highest average low temperature is August (60.8°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).
Average pressure in May
Ione, OR
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in May
Ione, OR
- Average wind speed in May: 8.7mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is September (7.2mph).
Average humidity in May
Ione, OR
- Average humidity in May: 57%
The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are July and August (39%).
Average rainfall in May
Ione, OR
- Average rainfall in May: 1.18"
The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in May
Ione, OR
- Average rainfall days in May: 12.3 days
The month with the highest number of rainy days is March (17 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in May
Ione, OR
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (6.61").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Ione, OR
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is December (9.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Ione, OR
- 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: 10h and 5min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and February (Average sunshine: 5h and 18min).
Average sunshine days in May
Ione, OR
- Average sunshine days in May: 16.3 days
The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is March (9.5 days).
Average UV index in May
Ione, OR
- Average UV index in May: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Ione, OR
- Average cloud cover in May: 28
The months with the most cloud cover are January and February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in May
Ione, OR
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Ione, Oregon, USA
Weather forecast for your location
2. Allow the app to use your location