Average change in
Temperature
Average change in high temperature day-to-day
Last Month:
3.0°
Last Year:
4.8°
Average change in low temperature day-to-day
Last Month:
4.9°
Last Year:
5.1°
Average change in
Precipitation
Chance of dry day after a precip day
Last Month:
18%
Last Year:
30%
Chance of precip day after a dry day
Last Month:
30%
Last Year:
21%
ForecastAdvisor Fact
1.1% of Foreca's low temperature forecasts for Portland were off by more than 10 degrees last month.