Climate Riverhead - New York
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 39 | 41 | 48 | 60 | 70 | 79 |
| Average low in ºF Av. low Lo | 25 | 27 | 33 | 41 | 51 | 60 |
| Av. precipitation in inch Av. precip. Pre. | 3.76 | 3.30 | 4.73 | 4.48 | 3.91 | 3.98 |
| Av. snowfall in inch Snowfall Sn | 9 | 9 | 5 | 1 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 83 | 82 | 75 | 64 | 54 | 44 |
| Average low in ºF Av. low Lo | 66 | 65 | 59 | 49 | 40 | 31 |
| Av. precipitation in inch Av. precip. Pre. | 3.28 | 3.88 | 3.89 | 4.20 | 4.24 | 4.10 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 0 | 0 | 5 |
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 Climate Graph - New York Climate Chart
Daily normals Riverhead - New York - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 41.3 | 28.1 | 0.13 | 0.13 | 0.00 | |
| 2 Jan | 41.1 | 27.9 | 0.25 | 0.25 | 0.00 | |
| 3 Jan | 40.9 | 27.7 | 0.37 | 0.37 | 0.00 | |
| 4 Jan | 40.8 | 27.5 | 0.50 | 0.50 | 0.00 | |
| 5 Jan | 40.6 | 27.3 | 0.62 | 0.62 | 0.00 | |
| 6 Jan | 40.5 | 27.1 | 0.75 | 0.75 | 0.00 | |
| 7 Jan | 40.3 | 26.9 | 0.88 | 0.88 | 0.00 | |
| 8 Jan | 40.2 | 26.8 | 1.01 | 1.01 | 0.00 | |
| 9 Jan | 40.0 | 26.6 | 1.13 | 1.13 | 0.00 | |
| 10 Jan | 39.9 | 26.4 | 1.26 | 1.26 | 0.00 | |
| 11 Jan | 39.8 | 26.3 | 1.39 | 1.39 | 0.00 | |
| 12 Jan | 39.7 | 26.1 | 1.52 | 1.52 | 0.00 | |
| 13 Jan | 39.6 | 26.0 | 1.65 | 1.65 | 0.00 | |
| 14 Jan | 39.5 | 25.9 | 1.78 | 1.78 | 0.00 | |
| 15 Jan | 39.4 | 25.8 | 1.91 | 1.91 | 0.00 | |
| 16 Jan | 39.4 | 25.6 | 2.03 | 2.03 | 0.00 | |
| 17 Jan | 39.3 | 25.5 | 2.15 | 2.15 | 0.00 | |
| 18 Jan | 39.2 | 25.4 | 2.26 | 2.26 | 0.00 | |
| 19 Jan | 39.2 | 25.4 | 2.38 | 2.38 | 0.00 | |
| 20 Jan | 39.2 | 25.3 | 2.49 | 2.49 | 0.00 | |
| 21 Jan | 39.1 | 25.2 | 2.61 | 2.61 | 0.00 | |
| 22 Jan | 39.1 | 25.2 | 2.73 | 2.73 | 0.00 | |
| 23 Jan | 39.1 | 25.1 | 2.85 | 2.85 | 0.00 | |
| 24 Jan | 39.1 | 25.1 | 2.97 | 2.97 | 0.00 | |
| 25 Jan | 39.1 | 25.1 | 3.09 | 3.09 | 0.00 | |
| 26 Jan | 39.1 | 25.1 | 3.21 | 3.21 | 0.00 | |
| 27 Jan | 39.1 | 25.1 | 3.32 | 3.32 | 0.00 | |
| 28 Jan | 39.2 | 25.1 | 3.44 | 3.44 | 0.00 | |
| 29 Jan | 39.2 | 25.1 | 3.55 | 3.55 | 0.00 | |
| 30 Jan | 39.3 | 25.1 | 3.67 | 3.67 | 0.00 | |
| 31 Jan | 39.3 | 25.2 | 3.79 | 3.79 | 0.00 |
Weather history Riverhead - July 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Jul | 86.0 | 66.9 | 0.58 | 0.00 | 0.0 |
| 02 Jul | 99.0 | 73.0 | 0.00 | 0.00 | 0.0 |
| 03 Jul | 98.1 | 77.0 | 0.00 | 0.00 | 0.0 |
| 04 Jul | 98.1 | 78.1 | 0.00 | 0.00 | 0.0 |
| 05 Jul | 93.0 | 69.1 | 0.84 | 0.00 | 0.0 |
| 06 Jul | 79.0 | 63.0 | 2.00 | 0.00 | 0.0 |
| 07 Jul | 69.1 | 63.0 | 0.08 | 0.00 | 0.0 |
| 08 Jul | 82.9 | 63.0 | 0.04 | 0.00 | 0.0 |
| 09 Jul | 84.0 | 68.0 | 0.00 | 0.00 | 0.0 |
| 10 Jul | 84.0 | 71.1 | 0.00 | 0.00 | 0.0 |
| 11 Jul | - | - | - | - | - |
| 12 Jul | - | - | - | - | - |
| 13 Jul | - | - | - | - | - |
| 14 Jul | - | - | - | - | - |
| 15 Jul | - | - | - | - | - |
| 16 Jul | - | - | - | - | - |
| 17 Jul | - | - | - | - | - |
| 18 Jul | - | - | - | - | - |
| 19 Jul | - | - | - | - | - |
| 20 Jul | - | - | - | - | - |
| 21 Jul | - | - | - | - | - |
| 22 Jul | - | - | - | - | - |
| 23 Jul | - | - | - | - | - |
| 24 Jul | - | - | - | - | - |
| 25 Jul | - | - | - | - | - |
| 26 Jul | - | - | - | - | - |
| 27 Jul | - | - | - | - | - |
| 28 Jul | - | - | - | - | - |
| 29 Jul | - | - | - | - | - |
| 30 Jul | - | - | - | - | - |
| 31 Jul | - | - | - | - | - |
Past weather Riverhead
| Jul 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 87.3 ºF | 39 ºF | |
| Average low temperature Av. low temp. | 69.2 ºF | 25 ºF | |
| Total precipitation Total precip. | 3.54 inch | 3.76 inch | |
| Total snowfall Total snowfall | 0.00 inch | 9 inch | |
| Highest max temperature Highest max temp. | 99.0 ºF | - | |
| Lowest max temperature Lowest max temp. | 69.1 ºF | - | |
| Highest min temperature Highest min temp. | 78.1 ºF | - | |
| Lowest min temperature Lowest min temp. | 63.0 ºF | - | |
Past weather July 2026 incomplete - Missing data
Geo Riverhead - New York
| Country | United States | |
|---|---|---|
| State | New York | |
| County | Suffolk | |
| City | Riverhead | |
| Zip Code | 11901 | |
| Longitude | -72.64 dec. degr. | |
| Latitude | 40.94 dec. degr. | |
| Altitude - Elevation | 26ft | |
| ICAO | - | |
| IATA | - |
Date and Time Riverhead - New York
| Local Time | 05:41 AM | |
|---|---|---|
| Sunrise | 05:29 AM | |
| Sunset | 08:23 PM | |
| Day/Night | Day | |
| Timezone | Eastern Daylight Time | |
| Timezone DB | America - New York |
Map of Riverhead - New York
USGS National Map — Open interactive map
Riverhead weather averages
| Annual high temperature | 62ºF |
| Annual low temperature | 46ºF |
| Average annual precip. | 47.75 inch |
| Av. annual snowfall | 29 inch |
Station Data
Monthly averages Riverhead
Longitude: -72.64, Latitude: 40.94
Average weather Riverhead, NY - 11901
Monthly: 1991-2020 normals
History: 2007-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...