Average change in
Temperature
Average change in high temperature day-to-day
Last Month:
4.5°
Last Year:
5.7°
Average change in low temperature day-to-day
Last Month:
7.7°
Last Year:
7.9°
Average change in
Precipitation
Chance of dry day after a precip day
Last Month:
67%
Last Year:
57%
Chance of precip day after a dry day
Last Month:
33%
Last Year:
29%
ForecastAdvisor Fact
73.8% of The Weather Channel's low temperature forecasts for Groton were within 3 degrees of actual temperatures last year.