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 |
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 | 39.7 | 26.7 | 0.12 | 0.12 | 0.31 | 0.80 |
| 2 Jan | 39.6 | 26.5 | 0.24 | 0.24 | 0.51 | 1.30 |
| 3 Jan | 39.4 | 26.3 | 0.39 | 0.39 | 0.79 | 2.00 |
| 4 Jan | 39.3 | 26.2 | 0.51 | 0.51 | 0.98 | 2.50 |
| 5 Jan | 39.2 | 26.0 | 0.63 | 0.63 | 1.30 | 3.30 |
| 6 Jan | 39.0 | 25.9 | 0.75 | 0.75 | 1.50 | 3.80 |
| 7 Jan | 38.9 | 25.8 | 0.87 | 0.87 | 1.81 | 4.60 |
| 8 Jan | 38.8 | 25.7 | 0.98 | 0.98 | 2.09 | 5.30 |
| 9 Jan | 38.7 | 25.6 | 1.10 | 1.10 | 2.40 | 6.10 |
| 10 Jan | 38.7 | 25.5 | 1.22 | 1.22 | 2.72 | 6.90 |
| 11 Jan | 38.6 | 25.4 | 1.38 | 1.38 | 2.91 | 7.40 |
| 12 Jan | 38.5 | 25.3 | 1.50 | 1.50 | 3.19 | 8.10 |
Weather history Riverhead - May 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 May | 63.0 | 46.0 | T | 0.00 | 0.0 |
| 02 May | 62.1 | 48.0 | 0.00 | 0.00 | 0.0 |
| 03 May | 55.9 | 43.0 | 0.00 | 0.00 | 0.0 |
| 04 May | 66.0 | 43.0 | 0.00 | 0.00 | 0.0 |
| 05 May | 70.0 | 53.1 | 0.00 | 0.00 | 0.0 |
| 06 May | 66.0 | 57.0 | 0.06 | 0.00 | 0.0 |
| 07 May | 62.1 | 48.0 | 0.21 | 0.00 | 0.0 |
| 08 May | 62.1 | 45.0 | 0.00 | 0.00 | 0.0 |
| 09 May | 66.9 | 50.0 | 0.01 | 0.00 | 0.0 |
| 10 May | 70.0 | 51.1 | 0.31 | 0.00 | 0.0 |
| 11 May | 71.1 | 51.1 | 0.05 | 0.00 | 0.0 |
| 12 May | 64.0 | 45.0 | 0.00 | 0.00 | 0.0 |
| 13 May | 64.9 | 48.9 | 0.00 | 0.00 | 0.0 |
| 14 May | 64.0 | 54.0 | 0.09 | 0.00 | 0.0 |
| 15 May | 66.0 | 51.1 | 0.00 | 0.00 | 0.0 |
| 16 May | 73.9 | 48.0 | 0.00 | 0.00 | 0.0 |
| 17 May | 84.9 | 57.9 | 0.00 | 0.00 | 0.0 |
| 18 May | 87.1 | 59.0 | 0.00 | 0.00 | 0.0 |
| 19 May | 87.1 | 64.0 | 0.00 | 0.00 | 0.0 |
| 20 May | 91.0 | 66.9 | 0.00 | 0.00 | 0.0 |
| 21 May | 88.0 | 57.9 | 0.84 | 0.00 | 0.0 |
| 22 May | 68.0 | 53.1 | 0.00 | 0.00 | 0.0 |
| 23 May | 62.1 | 53.1 | 0.08 | 0.00 | 0.0 |
| 24 May | 57.0 | 48.9 | 1.58 | 0.00 | 0.0 |
| 25 May | 71.1 | 54.0 | 0.25 | 0.00 | 0.0 |
| 26 May | 79.0 | 57.0 | 0.00 | 0.00 | 0.0 |
| 27 May | 81.0 | 59.0 | 0.00 | 0.00 | 0.0 |
| 28 May | 81.0 | 63.0 | 0.00 | 0.00 | 0.0 |
| 29 May | 72.0 | 55.9 | 0.00 | 0.00 | 0.0 |
| 30 May | 70.0 | 48.9 | 0.00 | 0.00 | 0.0 |
| 31 May | 72.0 | 39.9 | 0.00 | 0.00 | 0.0 |
Past weather Riverhead
| May 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 70.9 ºF | 39 ºF | |
| Average low temperature Av. low temp. | 52.3 ºF | 25 ºF | |
| Total precipitation Total precip. | 3.48 inch | 3.76 inch | |
| Total snowfall Total snowfall | 0.00 inch | 9 inch | |
| Highest max temperature Highest max temp. | 91.0 ºF | - | |
| Lowest max temperature Lowest max temp. | 55.9 ºF | - | |
| Highest min temperature Highest min temp. | 66.9 ºF | - | |
| Lowest min temperature Lowest min temp. | 39.9 ºF | - | |
Past weather May 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 | 12:54 AM | |
|---|---|---|
| Sunrise | 05:18 AM | |
| Sunset | 08:19 PM | |
| Day/Night | Night | |
| Timezone | New_York -5:00 | |
| 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, ...