United StatesThe weather in May in Umatilla
It's warm in May in Umatilla with an average temperature of 25°C. Temperatures this month range from a low of 22°C to a high of 29°C. At night, you can expect temperatures between 7°C and 14°C.
Looking for great weather? May is a good time to be in Umatilla. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Umatilla, Oregon. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 37°C in 2023, Umatilla reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 13°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of 0°C to a highest value of 20°C.
Rainfall amount
In May, there is an average of 53 mm of precipitation, spread over 8 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in May for Umatilla
Click on any day in May to get detailed info about the usual weather on that day in Umatilla. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| Umatilla | New York | |
|---|---|---|
| Average temperature | 25°C | 22°C |
| Max. temperature | 29°C | 28°C |
| Min. temperature | 7°C | -5°C |
| Total precipitation | 53 mm | 105 mm |
| Rainy days | 8 days | 14 days |
Start of May
The month of May starts in Umatilla with warm temps, averaging around 24°C during the day and nights around 9°C.
Mid May
By mid-May, daytime temps rise to around 26°C, with nights around 11°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of May
By the end of May, the average daytime temperature in Umatilla is around 28°C, while nighttime temps are about 12°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Umatilla for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in May in Umatilla, Oregon. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in Umatilla
Temperature in May in Umatilla over the years
Precipitation charts
These charts show the average amount of precipitation in May in Umatilla, Oregon. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in Umatilla
Total precipitation in May in Umatilla over the years
Daily UV index in May in Umatilla
This chart shows the average daily UV index in May in Umatilla, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in May in Umatilla
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Average weather in Umatilla by month
Click on a month below to see detailed weather info for Umatilla. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.