The best time to visit Haskell, New Jersey, for pleasant weather and outdoor activities is during late spring (May to June) and early autumn (September to October).During these months, the weather is generally mild and comfortable, with fewer extreme temperatures compared to the peak of summer or the depths of winter. This makes it ideal for exploring the local parks, hiking trails, and enjoying any outdoor events in the area.Late spring offers blooming landscapes and fresh air, superb for those who enjoy nature walks or cycling.