Humid subtropical climate
Climate Riverhead - New York
Annual high62ºF
Annual low46ºF
Precipitation47.75 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 39 | 25 | 3.76 | 9 |
| Feb | 41 | 27 | 3.30 | 9 |
| Mar | 48 | 33 | 4.73 | 5 |
| Apr | 60 | 41 | 4.48 | 1 |
| May | 70 | 51 | 3.91 | 0 |
| Jun | 79 | 60 | 3.98 | 0 |
| Jul | 83 | 66 | 3.28 | 0 |
| Aug | 82 | 65 | 3.88 | 0 |
| Sep | 75 | 59 | 3.89 | 0 |
| Oct | 64 | 49 | 4.20 | 0 |
| Nov | 54 | 40 | 4.24 | 0 |
| Dec | 44 | 31 | 4.10 | 5 |
- JanHigh 39ºFLow 25ºFPrecip 3.76 inch
- FebHigh 41ºFLow 27ºFPrecip 3.30 inch
- MarHigh 48ºFLow 33ºFPrecip 4.73 inch
- AprHigh 60ºFLow 41ºFPrecip 4.48 inch
- MayHigh 70ºFLow 51ºFPrecip 3.91 inch
- JunHigh 79ºFLow 60ºFPrecip 3.98 inch
- JulHigh 83ºFLow 66ºFPrecip 3.28 inch
- AugHigh 82ºFLow 65ºFPrecip 3.88 inch
- SepHigh 75ºFLow 59ºFPrecip 3.89 inch
- OctHigh 64ºFLow 49ºFPrecip 4.20 inch
- NovHigh 54ºFLow 40ºFPrecip 4.24 inch
- DecHigh 44ºFLow 31ºFPrecip 4.10 inch
Climate summary
What is the average weather in Riverhead, New York?
Riverhead experiences a humid subtropical climate, characterized by warm summers and cold winters with strong seasonal contrast. Rainfall is fairly wet overall, spread evenly throughout the year, though heavy seasonal downpours can occur in warmer months. Winters bring regular snowfall to Riverhead.
Riverhead weather averages
Annual high62ºF
Annual low46ºF
Precipitation47.75 inch
Snowfall29 inch
Daily normals Riverhead - New York - January
| Day | HighºF | LowºF | Prec/ | Prec/ |
|---|---|---|---|---|
| Jan 1 | 41.3 | 28.1 | 0.13 | 0.13 |
| Jan 2 | 41.1 | 27.9 | 0.25 | 0.25 |
| Jan 3 | 40.9 | 27.7 | 0.37 | 0.37 |
| Jan 4 | 40.8 | 27.5 | 0.50 | 0.50 |
| Jan 5 | 40.6 | 27.3 | 0.62 | 0.62 |
| Jan 6 | 40.5 | 27.1 | 0.75 | 0.75 |
| Jan 7 | 40.3 | 26.9 | 0.88 | 0.88 |
| Jan 8 | 40.2 | 26.8 | 1.01 | 1.01 |
| Jan 9 | 40.0 | 26.6 | 1.13 | 1.13 |
| Jan 10 | 39.9 | 26.4 | 1.26 | 1.26 |
| Jan 11 | 39.8 | 26.3 | 1.39 | 1.39 |
| Jan 12 | 39.7 | 26.1 | 1.52 | 1.52 |
| Jan 13 | 39.6 | 26.0 | 1.65 | 1.65 |
| Jan 14 | 39.5 | 25.9 | 1.78 | 1.78 |
| Jan 15 | 39.4 | 25.8 | 1.91 | 1.91 |
| Jan 16 | 39.4 | 25.6 | 2.03 | 2.03 |
| Jan 17 | 39.3 | 25.5 | 2.15 | 2.15 |
| Jan 18 | 39.2 | 25.4 | 2.26 | 2.26 |
| Jan 19 | 39.2 | 25.4 | 2.38 | 2.38 |
| Jan 20 | 39.2 | 25.3 | 2.49 | 2.49 |
| Jan 21 | 39.1 | 25.2 | 2.61 | 2.61 |
| Jan 22 | 39.1 | 25.2 | 2.73 | 2.73 |
| Jan 23 | 39.1 | 25.1 | 2.85 | 2.85 |
| Jan 24 | 39.1 | 25.1 | 2.97 | 2.97 |
| Jan 25 | 39.1 | 25.1 | 3.09 | 3.09 |
| Jan 26 | 39.1 | 25.1 | 3.21 | 3.21 |
| Jan 27 | 39.1 | 25.1 | 3.32 | 3.32 |
| Jan 28 | 39.2 | 25.1 | 3.44 | 3.44 |
| Jan 29 | 39.2 | 25.1 | 3.55 | 3.55 |
| Jan 30 | 39.3 | 25.1 | 3.67 | 3.67 |
| Jan 31 | 39.3 | 25.2 | 3.79 | 3.79 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Riverhead - November 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Nov 1 | 59.0 | 37.9 | 0.00 |
| Nov 2 | 66.9 | 39.9 | 0.00 |
| Nov 3 | 70.0 | 46.9 | 0.00 |
| Nov 4 | 71.1 | 53.1 | 0.00 |
| Nov 5 | 71.1 | 59.0 | 0.00 |
| Nov 6 | 66.9 | 63.0 | 0.98 |
| Nov 7 | 63.0 | 55.9 | 1.05 |
| Nov 8 | – | – | – |
| Nov 9 | – | – | – |
| Nov 10 | – | – | – |
| Nov 11 | – | – | – |
| Nov 12 | – | – | – |
| Nov 13 | – | – | – |
| Nov 14 | – | – | – |
| Nov 15 | – | – | – |
| Nov 16 | – | – | – |
| Nov 17 | – | – | – |
| Nov 18 | – | – | – |
| Nov 19 | – | – | – |
| Nov 20 | – | – | – |
| Nov 21 | – | – | – |
| Nov 22 | – | – | – |
| Nov 23 | – | – | – |
| Nov 24 | – | – | – |
| Nov 25 | – | – | – |
| Nov 26 | – | – | – |
| Nov 27 | – | – | – |
| Nov 28 | – | – | – |
| Nov 29 | – | – | – |
| Nov 30 | – | – | – |
The data for November 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature71.1ºF · Nov 4
- Lowest max temperature59.0ºF · Nov 1
- Highest min temperature63.0ºF · Nov 6
- Lowest min temperature37.9ºF · Nov 1
Geo Riverhead - New York
Location
- Country
- United States
- State
- New York
- County
- Suffolk
- City
- Riverhead
- Zip Code
- 11901
- Elevation
- 26 ft
- Longitude
- -72.64
- Latitude
- 40.94
- ICAO
- –
- IATA
- –