Historical weather data, all-time temperature records, and monthly climate averages for Millburn, NJ. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Millburn sits right in that in-between zone of early spring — expect a high near 57° and a low around 35°, with roughly a 4-in-10 shot at rain. The date has seen some wild swings over 94 years of records, from a balmy 79° back in 1981 to a brutal 12° in 1954.
Millburn's weather has real range — the thermometer has touched 107° in the July heat of 2010 and plunged to -26° on a February day in 1934, a spread of 133 degrees. The wettest single day on record dropped a stunning 8.76 inches in August 1971, and a January 1961 storm buried the area under 20 inches of snow.
Summer is the main event here, with highs peaking around 87° in late July and the wettest stretch of the year arriving right on its heels in late July as well. Winters are cold but not punishing — January and February hover in the upper 30s to low 40s for highs. Spring and fall offer the most comfortable windows, with April through May and September through October bringing mild temps and manageable rainfall.