Historical weather data, all-time temperature records, and monthly climate averages for Hanover, NJ. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Hanover runs cool but transitional — expect a high around 57° and a low near 35°. The date has seen wild swings over 94 years of records, from a balmy 82° in 1950 down to a bitter 21° in 1932. There's a 38% chance of rain, but snow is essentially off the table.
Hanover's weather has real teeth at both extremes — the thermometer has touched 107° in July and plunged to -26° in February, a swing of 133 degrees. A single August day in 1971 dumped 8.76 inches of rain, and a January storm in 1961 buried the area under 20 inches of snow.
Summer is the clear headliner, with highs averaging 87° the third week of July and the wettest stretch of the year immediately after. Winter bottoms out mid-January at a frigid 38° average high. Spring and fall offer the most comfortable windows, with April climbing to a 62° average and October holding at 66°.