Historical weather data, all-time temperature records, and monthly climate averages for Calverton, MD. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Calverton sits in that classic mid-spring sweet spot — expect a high near 62° and a low around 39°, though history shows it can swing wildly. The date has seen an 85° scorcher back in 2011 and a brutal 21° freeze in 1965, a 64-degree gap that captures just how unpredictable early April can be here.
Calverton's weather has some serious teeth — an all-time high of 103° in July 1988 and an all-time low of -15° in January 1957 give this suburban Maryland spot a 118-degree range of extremes. The wettest single day on record, 9.38 inches on August 13, 1955, speaks to the area's vulnerability to heavy summer rain events.
Summer is the main event in Calverton, with highs peaking around 87-88° in mid-July and the wettest stretch of the year landing in early-to-mid July with over an inch of rain per week. If you're looking for mild and dry, aim for late September through October when highs hover in the upper 60s. Winters are cold but not brutal — average January highs sit at just 42°, though that -15° record is a reminder to never count out a serious cold snap.