Historical weather data, all-time temperature records, and monthly climate averages for Smyrna, DE. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Smyrna typically lands right in that sweet spot of early spring, with average highs around 62° and lows still dipping to 40° overnight. There's about a 1-in-3 chance of rain today historically, though snow is nearly off the table at just 1%. The date's seen some wild swings over 119 years — from a balmy 82° in 2010 to a bitter 27° low back in 1915.
Smyrna's weather has real range — 115 degrees of it, to be exact, stretching from a scorching 104° in July 1930 to a bone-chilling -11° in February 1934. Summer storms can pack a punch too: a single day in July 1975 dumped 8.5 inches of rain, and a February 1979 snowstorm buried the area under 25 inches in one shot.
Summers in Smyrna are legitimately hot, with the warmest week of the year (July 16–22) averaging highs of 88°, while January is when you'll feel the chill most — average highs in the mid-40s. If you're trying to dodge rain, late summer is your trickiest window; the week of August 13–19 is historically the wettest, averaging over an inch of precipitation. Spring and fall offer the most pleasant shoulder seasons, with highs climbing from 55° in March to 65° in April and easing back through the 60s in November.