Byram, Connecticut Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Byram weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Light Drizzle56%—80°73°—
- MondayJul 6Heavy Rain75%1.4″73°65°-7°
- TuesdayJul 7Light Rain92%0.15″68°63°-5°
- WednesdayJul 8Overcast19%—82°60°+14°
- ThursdayJul 9Overcast16%—85°69°+3°
- FridayJul 10Light Drizzle45%0.02″85°71°0°
- SaturdayJul 11Overcast33%—82°67°-3°
AQI 48 (Good), driven by Ozone. AQI up 11 over the last 6 hours (gradual rise). Ozone at AQI 78 — 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 during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 78 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
- Present
- AQI 78
- UV peak
- 1.1 at earlier today
- Sky at peak
- overcast
- Projected peak
- AQI 78
PM × Wind × Precip
PM2.5 at 15.5 µg/m³, PM10 at 16.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.95
- 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
- 11:12 PM
- Moonset
- 11:04 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Byram at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: April 22 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Byram
- Sun80°73°56%
- Mon73°65°75%
- Tue68°63°92%
- Wed82°60°19%
- Thu85°69°16%
- Fri85°71°45%
- Sat82°67°33%
- Sun82°69°22%
- Mon85°70°20%
- Tue77°68°14%
- Wed82°67°19%
- Thu79°68°32%
- Fri90°70°23%
- Sat85°72°24%
- Sun76°71°26%
- Mon71°67°27%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 — Byram
SPC has placed Byram in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Isolated severe storms possible. Limited threat for hail or damaging wind.
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 186 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
July is Byram's warmest stretch (~76°F) and January its coldest (~29°F); precipitation crests in December at 4.2 inches and ebbs in February to 2.9 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 29° | 3.5″ | 14 |
| February | 31° | 2.9″ | 13 |
| March | 39° | 3.6″ | 16 |
| April | 51° | 4.0″ | 17 |
| May | 60° | 3.9″ | 18 |
| June | 69° | 3.8″ | 17 |
| July | 76° | 3.6″ | 17 |
| August | 75° | 3.9″ | 17 |
| September | 68° | 3.4″ | 13 |
| October | 57° | 3.3″ | 12 |
| November | 44° | 3.9″ | 13 |
| December | 34° | 4.2″ | 13 |
Regional context
Drawing on NOAA NCEI 1991-2020 normals, Byram's January averages 29°F and July 76°F — 46°F apart — while precipitation totals roughly 43.9 inches over some 180 days.
Rainfall in Byram stays even across the calendar: December tops out at 4.2 inches over 13.2 rainy days, and February still logs 2.9 inches across 13.1 — a narrow range for Byram. It is a balanced pattern Byram shares with places like Pemberwick, CT, Rock Ridge, CT and Glenville, CT.
By mid-April the frosts ease in Byram, opening the season for kale, peas, spinach, and parsnips. In Byram, warm-season transplants — tomatoes, peppers, basil — wait two weeks past Byram's frost date. Around mid-November, freezing nights resume in Byram and tender crops must come in. Within Byram, cold-air pooling chills low spots by 5-10°F, shifting Byram's local frost dates.
Similar climates: Pemberwick, CT, Rock Ridge, CT, Glenville, CT, Indian Field, CT, Riverside, CT.
Frequently asked
- When does it freeze in Byram?
- Frost typically leaves Byram by mid-April and returns to Byram near mid-November.
- What is the rainy season in Byram?
- December is the wettest month in Byram, about 4.2 inches on average; the year totals roughly 44 inches.
- What is the warmest month in Byram?
- July is Byram's warmest month, averaging about 76°F.
- What is the coldest month in Byram?
- Byram bottoms out in January, with a mean near 29°F.
- When can I start a vegetable garden in Byram?
- Byram's last frost (mid-April) cues hardy greens; in Byram, hold heat-lovers two weeks past.
- How many rainy days does Byram get?
- Expect roughly 180 wet days a year in Byram.
- What hardiness zone is Byram?
- Byram's hardiness zone tracks its winter low; with January near 29°F, check the USDA ZIP map for the exact zone.
- What is the 10-day forecast for Byram?
- Byram'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 Byram?
- See this week's day-by-day rain chances for Byram in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Byram?
- Current conditions for Byram and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Byram forecast updated?
- The Byram forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Byram?
- Today's sunrise and sunset times for Byram 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 Byram?
- The next few days in Byram's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Byram's warm-summer humid continental climate in Connecticut pairs 29°F Januarys with 76°F Julys, 47°F apart across the seasons.
In a typical year Byram records about 44 inches of precipitation on around 180 days.
At 41.0°N, Byram's 47°F summer-to-winter swing sets when Byram's gardens wake and when frost returns.
Beaches near Byram
- Long Beach NY28.5 mi
- Jones Beach29.1 mi
Each linked page shows live water temperature, wave height, swim and surf verdicts, tides, and rip-current risk from NDBC + NOAA + NWS data.
ZIP codes in Byram
- 06830