May weather forecastBrownsville, OR

May

Weather in May

May, the last month of the spring in Brownsville, is a comfortable month, with an average temperature fluctuating between 41.5°F (5.3°C) and 65.3°F (18.5°C).

Temperature

Brownsville's transition into May brings a slight rise in the average high-temperature, moving from a moderate 57.6°F (14.2°C) in April to an enjoyable 65.3°F (18.5°C). Nightfall in May introduces a considerable dip in temperature, settling at an average of 41.5°F (5.3°C).

Humidity

In Brownsville, the average relative humidity in May is 78%.

Rainfall

In Brownsville, in May, during 13.3 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. Throughout the year, there are 163.3 rainfall days, and 29.92" (760mm) of precipitation is accumulated.

Snowfall

In Brownsville, snow does not fall in April through October.

Daylight

In May, the average length of the day is 14h and 49min.
On the first day of May, sunrise is at 6:01 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 8:48 pm PDT.

Sunshine

The average sunshine in May in Brownsville is 8.5h.

UV index

The average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, an average UV index of 4 transforms into the following instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.

Updated: Aug 1, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

May temperatures vary between a high-temperature of 65.3°F (18.5°C) and a low-temperature of 41.5°F (5.3°C).

In Brownsville, the average relative humidity in May is 78%.

In Brownsville, during May, the rain falls for 13.3 days and regularly aggregates up to 1.85" (47mm) of precipitation.

April through October are months without snowfall.

In May, the average day length is 14h and 49min.

On the first day of May, sunrise is at 6:01 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 8:48 pm PDT.

In May, the average sunshine duration is 8.5h.

In Brownsville, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health risk 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

57.6°F

65.3°F

70.9°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

5.3mph

4.8mph

4.7mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

17.8

13.3

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

15.5

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Brownsville, OR

Average high temperature in May: 65.3°F

The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (45.3°F).

Average low temperature in May: 41.5°F

The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).

Average pressure in May
Brownsville, OR

Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

Average wind speed in May
Brownsville, OR

Average wind speed in May: 4.3mph

The windiest months (with the highest average wind speed) are January and March (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in May
Brownsville, OR

Average humidity in May: 78%

The months with the highest relative humidity are January, February, March and December (86%).
The month with the lowest relative humidity is August (66%).

Average rainfall in May
Brownsville, OR

Average rainfall in May: 1.85"

The wettest month (with the highest rainfall) is December (4.41").
The driest month (with the least rainfall) is July (0.24").

Average rainfall days in May
Brownsville, OR

Average rainfall days in May: 13.3 days

The month with the highest number of rainy days is March (20.1 days).
The months with the least rainy days are July and August (3.8 days).

Average snowfall in May
Brownsville, OR

Average snowfall in May: 0"

The month with the highest snowfall is February (2.13").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May
Brownsville, OR

Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (2.5 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
Brownsville, OR

Average daylight in May: 14h and 48min

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: 8h and 30min

The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

Average sunshine days in May
Brownsville, OR

Average sunshine days in May: 15.5 days

The month with the most sunshine days is July (25.6 days).
The month with the least sunshine days is March (9.1 days).

Average UV index in May
Brownsville, OR

Average UV index in May: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).