Siena College, New York Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Siena College weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast28%—85°71°—
- SundayJul 5Overcast10%—84°66°-1°
- MondayJul 6Rain61%1.6″74°62°-10°
- TuesdayJul 7Showers64%0.83″64°60°-10°
- WednesdayJul 8Light Drizzle19%—77°60°+13°
- ThursdayJul 9Light Drizzle26%0.01″82°63°+5°
- FridayJul 10Light Drizzle58%—79°65°-3°
AQI 54 (Moderate), driven by Ozone. AQI up 9 over the last 6 hours (gradual rise). Ozone at AQI 48 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 48 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
- Present
- AQI 48
- UV peak
- 2.3 at earlier today
- Sky at peak
- overcast
- Projected peak
- AQI 48
PM × Wind × Precip
PM2.5 at 5.8 µg/m³, PM10 at 6.6 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.88
- Wind
- breezy
- 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
- 10:53 PM
- Moonset
- 9:55 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Siena College at a glance
- Today vs. normal: 16°F above the seasonal normal for this latitude
- Last frost: May 2 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Siena College
- Sat86°71°28%
- Sun84°68°10%
- Mon74°62°61%
- Tue64°60°64%
- Wed77°60°19%
- Thu82°63°26%
- Fri79°65°58%
- Sat74°67°34%
- Sun72°61°25%
- Mon77°58°29%
- Tue76°61°32%
- Wed83°56°35%
- Thu82°62°69%
- Fri92°63°45%
- Sat92°66°48%
- Sun78°68°47%
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 — Siena College
SPC has placed Siena College in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- 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 | — | — |
| May | lettuce, peas, spinach, radishes | lettuce, peas, radishes |
| June | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | tomatoes, peppers, beans, squash, fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | — | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Siena College's warmest month is July (~72°F mean) and its coldest is January (~23°F). Rainfall peaks in May (4.1 inches) and bottoms out in February (2.8 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 23° | 3.2″ | 17 |
| February | 25° | 2.8″ | 16 |
| March | 34° | 3.5″ | 19 |
| April | 47° | 4.0″ | 19 |
| May | 57° | 4.1″ | 19 |
| June | 66° | 4.1″ | 18 |
| July | 72° | 3.7″ | 18 |
| August | 71° | 3.9″ | 18 |
| September | 64° | 3.5″ | 16 |
| October | 53° | 3.7″ | 16 |
| November | 38° | 4.1″ | 17 |
| December | 28° | 3.8″ | 18 |
Regional context
Siena College's climate, from NOAA NCEI 1991-2020 station normals, pairs 23°F Januarys with 72°F Julys — a 49°F swing. About 44.3 inches of precipitation falls over roughly 210 days a year.
Siena College's precipitation spreads evenly: May peaks at 4.1 inches on 18.5 wet days, while February holds 2.8 inches over 16.5 — no month dominates Siena College's rain calendar. That even rhythm groups Siena College with places like Loudonville, NY, Latham, NY and Watervliet, NY.
By late-May the frosts ease in Siena College, opening the season for kale, peas, spinach, and parsnips. Warm-soil crops in Siena College wait about two weeks past Siena College's last frost, once the soil warms. It shuts near early-October, when freezes return to Siena College and tender plants need cover. Within Siena College, cold-air pooling chills low spots by 5-10°F, shifting Siena College's local frost dates.
Similar climates: Loudonville, NY, Latham, NY, Watervliet, NY, Menands, NY, Roessleville, NY.
Frequently asked
- When does it freeze in Siena College?
- Frost typically leaves Siena College by mid-May and returns to Siena College near mid-October.
- What is the rainy season in Siena College?
- May is the wettest month in Siena College, about 4.1 inches on average; the year totals roughly 44 inches.
- What is the warmest month in Siena College?
- The warmest stretch in Siena College comes in July, around 72°F on average.
- What is the coldest month in Siena College?
- On average January is the chilliest month in Siena College, about 23°F.
- When can I start a vegetable garden in Siena College?
- Frost-hardy sowings begin at mid-May in Siena College; warm-season starts follow two weeks on.
- How many rainy days does Siena College get?
- Siena College averages about 210 days with measurable rain or snow each year.
- What hardiness zone is Siena College?
- Siena College's hardiness zone tracks its winter low; with January near 23°F, check the USDA ZIP map for the exact zone.
- What is the 10-day forecast for Siena College?
- Siena College'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 Siena College?
- See this week's day-by-day rain chances for Siena College in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Siena College?
- Current conditions for Siena College and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Siena College forecast updated?
- The Siena College forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Siena College?
- Today's sunrise and sunset times for Siena College 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 Siena College?
- The next few days in Siena College's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Siena College's warm-summer humid continental climate in New York pairs 23°F Januarys with 72°F Julys, 49°F apart across the seasons.
Across the year, Siena College collects about 44 inches of precipitation over roughly 210 days with measurable rain or snow.
The 49°F gap between Siena College's summer and winter, at 42.7°N, shapes Siena College's frost calendar.
ZIP codes in Siena College
- 12211