Historical weather data, all-time temperature records, and monthly climate averages for Commack, NY. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Commack sits squarely in the shoulder season — expect a high around 53° and a low near 38°, with a coin-flip chance of rain. The date has seen wild swings over 62 years of records, from a balmy 75° in 2010 to a bitter 26° low back in 1972.
Commack's weather history has some real extremes baked in — the mercury has hit 104° in July and plunged to -14° in February, a swing of 118 degrees. August 2014 brought a staggering 13.51 inches of rain in a single day, and a January 2022 storm dropped 23.5 inches of snow.
Summer is the sweet spot, with highs peaking around 82-84° in mid-July, while mid-January bottoms out at a chilly 37°. If you're dodging rain, avoid mid-August — it's the wettest stretch of the year. Spring and fall offer mild temps but plan for variable conditions.