Historical weather data, all-time temperature records, and monthly climate averages for Rockland, MA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Rockland lands right in that classic New England 'anything goes' zone — the average high is a modest 53° with a low of 35°, but the date has seen everything from a balmy 74° back in 1991 to a brutal 19° in 1995. There's a 32% chance of rain today historically, with a small but real 6% chance of snow still lurking.
Rockland plays the full hand when it comes to extremes — the thermometer has swung from a scorching 101° in July 2011 all the way down to -13° in January 1961, a spread of 114 degrees. On the wet side, a single March day in 2026 dropped a remarkable 9 inches of rain, and the Blizzard of '78 buried the town under 24 inches of snow in one shot.
Summer is the sweet spot, peaking the week of July 16–22 with average highs of 84°, while January is the time to stay inside — highs average just 36° during the coldest stretch. If you're rain-averse, note that mid-March is historically the wettest week of the year, averaging over an inch of precipitation in just seven days.