Suffern, New York Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Suffern weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast47%—95°72°—
- SundayJul 5Heavy Showers57%1.5″89°71°-6°
- MondayJul 6Light Showers91%0.66″70°68°-19°
- TuesdayJul 7Heavy Drizzle78%0.06″68°60°-2°
- WednesdayJul 8Overcast25%—81°60°+13°
- ThursdayJul 9Overcast16%—89°65°+8°
- FridayJul 10Light Drizzle53%—84°67°-5°
AQI 66 (Moderate), driven by Ozone. AQI up 27 in the last 6 hours — air quality is degrading. Ozone at AQI 71 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 71 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 71
- UV peak
- 3.4 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 71
PM × Wind × Precip
PM2.5 at 6.8 µg/m³, PM10 at 7.7 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.88
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:52 PM
- Moonset
- 9:59 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Suffern at a glance
- Today vs. normal: 24°F above the seasonal normal for this latitude
- Last frost: April 23 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 10901
16-Day Forecast — Suffern
- Sat96°72°47%
- Sun89°71°57%
- Mon70°68°91%
- Tue68°60°78%
- Wed81°60°25%
- Thu89°65°16%
- Fri84°67°53%
- Sat84°70°33%
- Sun81°66°26%
- Mon77°63°23%
- Tue83°65°24%
- Wed87°60°28%
- Thu89°64°41%
- Fri92°67°45%
- Sat91°69°34%
- Sun89°71°39%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Suffern
SPC has placed Suffern in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
Microseason · July 1–5
Cicadas claim the afternoon
Annual cicada buzz begins, peaking in the heat of the day.
Day 185 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Suffern's warmest month is July (~75°F mean) and its coldest is January (~28°F). Rainfall peaks in December (4.3 inches) and bottoms out in February (3.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 28° | 3.6″ | 14 |
| February | 30° | 3.0″ | 13 |
| March | 38° | 3.7″ | 16 |
| April | 50° | 4.2″ | 17 |
| May | 59° | 4.2″ | 18 |
| June | 68° | 4.3″ | 17 |
| July | 75° | 4.0″ | 17 |
| August | 74° | 4.3″ | 17 |
| September | 67° | 3.9″ | 14 |
| October | 56° | 3.5″ | 12 |
| November | 43° | 4.1″ | 13 |
| December | 33° | 4.3″ | 14 |
Regional context
Drawing on NOAA NCEI 1991-2020 normals, Suffern's January averages 28°F and July 75°F — 47°F apart — while precipitation totals roughly 47 inches over some 183 days.
Rainfall in Suffern stays even across the calendar: December tops out at 4.3 inches over 13.6 rainy days, and February still logs 3.0 inches across 13.3 — a narrow range for Suffern. It is a balanced pattern Suffern shares with places like Hillburn, NY, Montebello, NY and Airmont, NY.
The cool-season window in Suffern starts at mid-April, when nights stop freezing — think kale, peas, spinach, and parsnips. Hold Suffern's tender crops — tomatoes, peppers, basil — until 10-14 days past Suffern's last frost. Around mid-November, freezing nights resume in Suffern and tender crops must come in. In Suffern, low spots run 4-7°F colder than nearby slopes, nudging Suffern's frost dates a week.
Similar climates: Hillburn, NY, Montebello, NY, Airmont, NY, Viola, NY, Monsey, NY.
Frequently asked
- When does it freeze in Suffern?
- Frost typically leaves Suffern by mid-April and returns to Suffern near mid-November.
- What is the rainy season in Suffern?
- Suffern sees its heaviest rain in December (around 4.3 inches), part of roughly 47 inches a year.
- What is the warmest month in Suffern?
- The warmest stretch in Suffern comes in July, around 75°F on average.
- What is the coldest month in Suffern?
- On average January is the chilliest month in Suffern, about 28°F.
- When can I start a vegetable garden in Suffern?
- Suffern's last frost (mid-April) cues hardy greens; in Suffern, hold heat-lovers two weeks past.
- How many rainy days does Suffern get?
- Expect roughly 183 wet days a year in Suffern.
- What hardiness zone is Suffern?
- Suffern's hardiness zone tracks its winter low; with January near 28°F, check the USDA ZIP map for the exact zone.
- What is the 10-day forecast for Suffern?
- Suffern's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Suffern?
- See this week's day-by-day rain chances for Suffern in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Suffern?
- Current conditions for Suffern and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Suffern forecast updated?
- The Suffern forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Suffern?
- Today's sunrise and sunset times for Suffern are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Suffern?
- The next few days in Suffern's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Suffern's warm-summer humid continental climate in New York pairs 28°F Januarys with 75°F Julys, 47°F apart across the seasons.
Suffern sees close to 47 inches of precipitation annually, falling across some 183 wet days.
The 47°F gap between Suffern's summer and winter, at 41.1°N, shapes Suffern's frost calendar.
ZIP codes in Suffern
- 10901