Oregon, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and Climate
Westfall, OR

  • The average high temperature in May: 72°F

The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (36.1°F).

  • The average low temperature in May: 42.2°F

The month with the highest average low temperature is July (55.5°F).
The coldest month (with the lowest average low temperature) is January (18.8°F).

  • The average rainfall in May: 1"

The wettest month (with the highest rainfall) is December (1.4").
The driest month (with the lowest rainfall) is July (0.4").

  • The average rainfall days in May: 7 days

Months with the highest number of rainy days are January, November and December (8 days).
Months with the lowest number of rainy days are July, August and September (3 days).

  • The average snowfall in May: 0"

The month with the highest snowfall is December (9.2").
Months with the lowest snowfall are May, June, July, August and September (0").