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Riverhead (NY) Weather and Climate: A Comprehensive Guide

The temperature in Riverhead can vary greatly throughout the year. The temperatures shift from warm to cold. It also experiences much rain/snowfall throughout the year. Now, let’s explore all the climate details to give you a full picture.

Average maximum day and minimum night temperature

Depending on the time of the year, temperatures range from comfortable to chilly in Riverhead. Average daytime temperatures reach a comfortable 28°C in July. In February, the coolest month of the year, temperatures drop to a chilly 4°C.

At night, you can expect cooler temperatures, with averages dropping to around -5°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Riverhead has a relatively rain/snowy climate with high precipitation levels, averaging 1167 mm of rain/snowfall annually. Despite minor fluctuations, Riverhead enjoys fairly consistent precipitation throughout the year. In December, you can expect around 132 mm of precipitation, while in July, Riverhead receives about 83 mm.

The mean monthly precipitation over the year, including rain, hail and snow

Forecast for Riverhead (NY)

Sat   Dec 21
1°C | -7°C
NW 8 m/s
5.6 mm
broken clouds and snow

broken clouds and snow

Sun   Dec 22
-3°C | -10°C
NW 7 m/s
clear and no rain

clear and no rain

Mon   Dec 23
0°C | -13°C
SW 2 m/s
almost clear and no rain

almost clear and no rain

The best time of year to visit Riverhead in the United States of America

During the months of June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Riverhead?
    July has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Riverhead?
    The coldest month is February with an average maximum temperature of 4°C.
  • Which is the wettest month in Riverhead?
    December tops the wettest month list with 132 mm of rainfall.
  • Which is the driest month in Riverhead?
    July is the driest month with 83 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.