Mount Mansfield rainfall deficit points to lower streamflow

Month-to-date precipitation at Mount Mansfield station is 0.9 in, running 3.5 in below normal for this date.¹ The Lamoille River at Johnson measured 134 cubic feet per second on September 22, near the week's low range but within recent variability.¹ Below-normal rainfall in early fall typically translates to reduced base flow as groundwater recharge lags; this deficit suggests streamflow may continue to run lower than seasonal norms into early October without significant precipitation.¹