Average change in
Temperature
Average change in high temperature day-to-day
Last Month:
2.6°
Last Year:
3.8°
Average change in low temperature day-to-day
Last Month:
1.7°
Last Year:
5.9°
Average change in
Precipitation
Chance of dry day after a precip day
Last Month:
45%
Last Year:
44%
Chance of precip day after a dry day
Last Month:
30%
Last Year:
23%
ForecastAdvisor Fact
68.2% of Open-Meteo's high temperature forecasts for Mount Vernon were within 3 degrees of actual temperatures last year.