Historical weather data, all-time temperature records, and monthly climate averages for Randallstown, MD. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Randallstown typically lands in that pleasant in-between zone — average highs of 61° and lows of 40° signal spring without committing to it. The date's range tells the real story though: a 84° scorcher back in 2010 and a teeth-chattering 26° low in 1964 show how wildly this calendar square can swing. Rain is possible but unlikely, with just a 28% chance of precipitation and essentially no shot at snow.
Randallstown has seen it all across 87 years of records — from a brutal -7° on January 29, 1963, to a sweltering 106° on July 22, 2011, a spread of 113 degrees. A single August day in 2014 dumped 6.3 inches of rain, and the January 2016 blizzard buried the area under 25.5 inches of snow. This is a place that earns its Mid-Atlantic reputation for weather that refuses to play it safe.
Randallstown runs hot in summer and cool but not brutal in winter — peak warmth arrives mid-July with average highs near 89°, while January bottoms out around 41°. If you're avoiding heat and humidity, aim for May (75°) or September (79°), when conditions are comfortable without the summer edge. Late May into early June is the wettest stretch of the year, averaging over an inch of rain per week, so pack accordingly.