Weather in South Valley Stream, New York
Roses open along the stoops. Day 59 of spring. Read this microseason across nine climate regions →
- TodayMay 16Mostly Clear—74°49°
- SundayMay 17Overcast—85°59°
- MondayMay 18Drizzle10%82°64°
- TuesdayMay 19Drizzle10%86°63°
- WednesdayMay 20Heavy Drizzle67%92°67°
- ThursdayMay 21Overcast43%73°57°
- FridayMay 22Light Drizzle19%65°50°
- PM 2.5
- 15.0 μg/m³
- PM 10
- 19.3 μg/m³
- NO₂
- 27.4 μg/m³
- Ozone
- 90.0 μg/m³
- UV Index
- 0.0 Low
When the dew is on the grass, rain will never come to pass.
- Moonrise
- 9:40 AM
- Moonset
- 12:33 AM
- In sign
- ♉︎ Taurus
Roses open along the stoops
South Valley Stream at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: 28 of 72, May 16–20
- Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.
Right now in the garden
Warm-season window is open
As of May 17, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.
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
South Valley Stream's warmest month is July (~79°F mean) and its coldest is January (~34°F). Rainfall peaks in August (4.4 inches) and bottoms out in February (2.9 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 34° | 3.3″ | 6 |
| February | 36° | 2.9″ | 6 |
| March | 43° | 4.0″ | 7 |
| April | 54° | 3.9″ | 6 |
| May | 64° | 3.6″ | 7 |
| June | 73° | 4.0″ | 7 |
| July | 79° | 4.3″ | 6 |
| August | 78° | 4.4″ | 6 |
| September | 71° | 3.9″ | 6 |
| October | 60° | 3.8″ | 5 |
| November | 49° | 3.1″ | 6 |
| December | 40° | 4.1″ | 7 |
Regional context
South Valley Stream sits within a warm-summer humid continental climate region — a cohort that shares similar temperature ranges, seasonal patterns, and growing conditions across nearby cities.
Similar climates: New York, NY, Brooklyn, NY, Queens, NY, Manhattan, NY, Bronx, NY.
Frequently asked
- When does it freeze in South Valley Stream?
- South Valley Stream's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in South Valley Stream?
- August is the wettest month with about 4.4 inches of rain on average; the city receives roughly 45 inches annually.
- What is the warmest month in South Valley Stream?
- July is typically warmest, averaging about 79°F.
- What is the coldest month in South Valley Stream?
- January is typically coldest, averaging about 34°F.
- When can I start a vegetable garden in South Valley Stream?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-April); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does South Valley Stream get?
- South Valley Stream averages about 75 rainy days per year.
- What hardiness zone is South Valley Stream?
- South Valley Stream's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
South Valley Stream, New York sits in a warm-summer humid continental climate zone. January means hover near 34°F while July averages 79°F — a 45°F seasonal swing.
Across the year, South Valley Stream receives about 45 inches of precipitation spread over roughly 75 rainy days.
The rhythm of the year is set by latitude (40.7°N), proximity to large water bodies, and elevation — all of which shape what grows here, when frost is likely, and what the weather story looks like day to day.