Temperatures in May
It's hot in May in Umatilla with an average temperature of 31°C. Temperatures this month range from a low of 29°C to a high of 33°C. At night, you can expect temperatures between 18°C and 23°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Umatilla in May. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of May
The month of May starts in Umatilla with hot temperatures, averaging around 31°C during the day and nights close to 20°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-May
By mid-May, the average daytime temperature rises to around 32°C, with nights close to 22°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
End of May
By the end of May, the average daytime temperature in Umatilla will be around 33°C, with nights close to 23°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
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Precipitation in May
In May, there is an average of 114 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
The average precipitation chance is 28% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in May for Umatilla. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Umatilla in May |
London | ||
|---|---|---|---|
 Average Temperature |
31°C | 18°C | |
 High Temp |
33°C | 21°C | |
| Low Temp |
29°C | 15°C | |
 Total Precipitation |
114 mm | 46 mm | |
| Rainy Days |
9 days | 8 days | |
April
UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is May a good time to visit Umatilla?
After some sun? Then May isn’t the best time to be in Umatilla. The temperature is pleasant, but there’s too much chance of rain this month.
The hurricane season in Umatilla runs from June to November.
Temperature records for Umatilla in May
With 36°C, Umatilla hit the highest temperature in the last 10 years in May 2020. The lowest daytime temperature in this month was 21°C in 2014. The extreme night temperatures ranged from a low of 11°C to a high of 26°C.
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Daily Temperature in May in Umatilla
This chart shows the average daily temperatures, both day and night, for each day in May in Umatilla, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in May in Umatilla
The chart below shows the average daily precipitation in May for Umatilla, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for May, you can expect around 9 days of rain in Umatilla.
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.
Temperature in May in Umatilla Over the Years
This chart shows the average temperature in May in Umatilla, measured in degrees Celsius, over the past years.
Total Precipitation in May in Umatilla Over the Years
This chart shows the average precipitation in May in Umatilla, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in May for Umatilla
Click on a specific day in May for detailed info on the typical weather on that day in Umatilla. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Umatilla
Have you been to Umatilla in May?
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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.
