May weather forecastLyons, OR

May

Weather in May

May, the last month of the spring in Lyons, is an enjoyable month, with temperature in the range of an average low of 39.9°F (4.4°C) and an average high of 62.1°F (16.7°C).

Temperature

May sees a marginal temperature increase, moving from a cool 53.6°F (12°C) in April to a refreshing 62.1°F (16.7°C). Nighttime temperatures throughout May register a significant deviation from the day's highs, averaging at a cold 39.9°F (4.4°C).

Humidity

The average relative humidity in May is 78%.

Rainfall

In May, the rain falls for 15.2 days. Throughout May, 2.76" (70mm) of precipitation is accumulated. In Lyons, during the entire year, the rain falls for 178.8 days and collects up to 45.31" (1151mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In May, the average length of the day is 14h and 51min.
On the first day of May, sunrise is at 5:58 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:48 pm PDT.

Sunshine

In Lyons, the average sunshine in May is 7.9h.

UV index

In Lyons, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In May, a daily maximum UV index of 4 leads to the following instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Updated: Jun 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature during May is 62.1°F (16.7°C) and the low-temperature is 39.9°F (4.4°C).

The average relative humidity in May is 78%.

In Lyons, in May, during 15.2 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

In Lyons, snow does not fall in May through October.

In May, it doesn't snow. April is the latest month when it typically snows.

In May, the average day length is 14h and 51min.

In May, on the first day of the month, sunrise is at 5:58 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:48 pm PDT.

The average sunshine duration in May is 7.9h.

The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

53.6°F

62.1°F

67.6°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

5.5mph

4.8mph

4.7mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

8.9

13.9

15.8

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Lyons, OR

Average high temperature in May: 62.1°F

The warmest month (with the highest average high temperature) is August (77.7°F).
The month with the lowest average high temperature is December (42.6°F).

Average low temperature in May: 39.9°F

The month with the highest average low temperature is August (48.4°F).
The coldest month (with the lowest average low temperature) is December (31.1°F).

Average pressure in May
Lyons, OR

Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

Average wind speed in May
Lyons, OR

Average wind speed in May: 4.4mph

The windiest month (with the highest average wind speed) is January (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in May
Lyons, OR

Average humidity in May: 78%

The month with the highest relative humidity is March (87%).
The month with the lowest relative humidity is August (67%).

Average rainfall in May
Lyons, OR

Average rainfall in May: 2.76"

The wettest month (with the highest rainfall) is December (6.65").
The driest month (with the least rainfall) is July (0.35").

Average rainfall days in May
Lyons, OR

Average rainfall days in May: 15.2 days

The month with the highest number of rainy days is March (21.2 days).
The month with the least rainy days is July (5.4 days).

Average snowfall in May
Lyons, OR

Average snowfall in May: 0"

The month with the highest snowfall is February (6.5").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Lyons, OR

Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Lyons, OR

Average daylight in May: 14h and 54min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

Average sunshine in May: 7h and 54min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).