Norwich, Connecticut Weather
Apples hang heavy on the branch. Day 93 of summer. Read this microseason across nine climate regions →
Norwich weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 10:22 AM EDT · Open-Meteo
- TodaySep 21Overcast later27%0.01″67°56°—
- TuesdaySep 22Overcast——64°50°-3°
- WednesdaySep 23Overcast——65°48°+1°
- ThursdaySep 24Overcast23%—66°46°+1°
- FridaySep 25Overcast52%—66°49°0°
- SaturdaySep 26Overcast50%—74°50°+8°
- SundaySep 27Overcast41%—75°52°+1°
Air quality now AQI 28 · Good
AQI 28 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 32 now. With UV 2.4 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 7.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 8 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 32 now. With UV 2.4 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 7.
- Present
- AQI 32
- UV peak
- 2.4 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 7
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).
September dries up ditches or breaks down bridges.
- Moonrise
- 4:24 PM
- Moonset
- 1:02 AM
- In sign
- ♑︎ Capricorn
Apples hang heavy on the branch
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Norwich at a glance
- Today vs. normal: Today averages 62°F (high 67°F, low 56°F), about the 63°F normal for Sep 21
- Last frost: April 14 (1991–2020 median, NOAA station 3 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, winter squash
16-Day Forecast — Norwich
- Mon67°56°27%
- Tue64°50°1%
- Wed65°48°2%
- Thu66°46°23%
- Fri66°49°52%
- Sat74°50°50%
- Sun75°52°41%
- Mon72°51°20%
- Tue73°49°15%
- Wed71°53°22%
- Thu74°57°22%
- Fri71°52°18%
- Sat68°46°16%
- Sun71°52°23%
- Mon71°54°19%
- Tue58°42°19%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Norwich
Interactive wind and temperature map centered on Norwich — it loads in your browser. Open the full weather map.
Right now in the garden
Fall planting + final harvests
As of September 21, the season's first frost (typically October 24) is approaching. Pick what frost-tender plants still carry before the next cold front. This city's planting calendar for September: plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, and winter squash.
Sun & seasons in Norwich
Norwich sits in Southeastern Connecticut County, where the year’s longest day runs 15h 11m of daylight and its shortest just 9h 10m — a swing of +6h 2m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Hartford, the state’s largest city, lies about 34 miles to the WNW. The nearest town Norwich tracks is Hartford, roughly 34 miles to the WNW.
Air quality in Norwich
Air quality in Norwich’s county has held roughly steady since 2020; its cleanest year on record was 2024 (median AQI 37). See the full air-quality history for Norwich.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes | radishes |
| May | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, spinach |
| July | tomatoes, peppers, beans, squash | lettuce, peas, beans, summer squash, garlic |
| August | beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash |
| September | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| November | — | fall brassicas, carrots |
A year in weather
Norwich peaks at about 74°F in July and bottoms near 30°F in January; March brings the heaviest rain (5.1 inches) and July the least (3.6 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 30° | 3.9″ | 7 |
| February | 32° | 3.8″ | 6 |
| March | 39° | 5.1″ | 7 |
| April | 49° | 4.7″ | 7 |
| May | 59° | 3.6″ | 7 |
| June | 68° | 4.3″ | 6 |
| July | 74° | 3.6″ | 6 |
| August | 73° | 4.4″ | 6 |
| September | 65° | 4.8″ | 6 |
| October | 54° | 4.9″ | 6 |
| November | 44° | 4.2″ | 6 |
| December | 35° | 5.0″ | 7 |
Regional context
Similar climates Baltic, CT, Jewett City, CT, Oxoboxo River, CT
Per NOAA NCEI 1991-2020 normals, Norwich runs from a 30°F January mean to 74°F in July, a 45°F seasonal spread, with near 52.2 inches of precipitation across about 78 wet days.
Norwich's precipitation spreads evenly across the seasons: March peaks at 5.1 inches on 7.2 wet days, while July holds 3.6 inches over 5.6 — no season dominates Norwich's rain calendar. It is a balanced pattern Norwich shares with places like Baltic, CT, Jewett City, CT and Oxoboxo River, CT.
Norwich reaches its last hard frost near April 14; that is the cue for kale, peas, spinach, and parsnips. Tomatoes and peppers do best set out two weeks later in Norwich, once nights clear the mid-40s°F. By October 24, frost is back in Norwich — protect or harvest anything tender. Open lawns in Norwich whiten first when frost returns.
Similar climates: Baltic, CT, Jewett City, CT, Oxoboxo River, CT, Mashantucket, CT, Gales Ferry, CT.
Frequently asked
- When does it freeze in Norwich?
- Frost typically leaves Norwich by April 14 and returns to Norwich near October 24.
- What is the rainy season in Norwich?
- March is the wettest month in Norwich, about 5.1 inches on average; the year totals roughly 52 inches.
- What is the warmest month in Norwich?
- Norwich peaks in July, when the mean runs near 74°F.
- What is the coldest month in Norwich?
- January is Norwich's coldest month, averaging about 30°F.
- When can I start a vegetable garden in Norwich?
- Around April 14, start frost-hardy crops in Norwich; tomatoes and basil belong a fortnight later.
- How many rainy days does Norwich get?
- Expect roughly 78 wet days a year in Norwich.
- What hardiness zone is Norwich?
- Because Norwich bottoms near 30°F in January, that winter low sets Norwich's USDA zone — verify by ZIP.
- What is the 10-day forecast for Norwich?
- Norwich'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 Norwich?
- See this week's day-by-day rain chances for Norwich in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Norwich?
- Current conditions for Norwich and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Norwich forecast updated?
- The Norwich forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Norwich?
- Today's sunrise and sunset times for Norwich 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 Norwich?
- The next few days in Norwich's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Norwich sits at 41.5°N; its climate zone is warm-summer humid continental (Köppen approximation).
ZIP codes in Norwich
- 06360
- 06380
- 06389