Average change in
Temperature
Average change in high temperature day-to-day
Last Month:
4.7°
Last Year:
5.6°
Average change in low temperature day-to-day
Last Month:
6.8°
Last Year:
7.9°
Average change in
Precipitation
Chance of dry day after a precip day
Last Month:
60%
Last Year:
50%
Chance of precip day after a dry day
Last Month:
25%
Last Year:
31%
ForecastAdvisor Fact
16.7% of The Weather Channel's high temperature forecasts for Portland were exactly right last month.