New Britain, Connecticut climate: NOAA's gridded normals for the city, beside the nearest station records
NOAA's gridded 1991-2020 normals put New Britain's center at January lows of 19°F and July highs of 85°F, a yearly mean of 50.8°F and 49.4 inches of precipitation. No NOAA station keeps a record under the city's name. The nearest station record, Burlington (11 miles NW, 505 ft), has January lows of 17°F and July highs of 84°F.
75,871 people (Census Bureau 2024). Distances and directions are from the city's center.
- Jan 36° 19°
- Feb 39° 21°
- Mar 48° 28°
- Apr 60° 37°
- May 71° 47°
- Jun 80° 57°
- Jul 85° 63°
- Aug 83° 61°
- Sep 75° 54°
- Oct 64° 42°
- Nov 52° 33°
- Dec 41° 25°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
The months above are NOAA's gridded normals at New Britain's center.
What is each month like in New Britain?
NOAA's grid estimates the normals every 5 km or so from the stations around each point, terrain included. It smooths between stations, so night lows at the heart of a large city can run warmer than the grid shows: at five big-city airports we compared, the grid's highs were within about 1°F of the station and its lows 1-6°F cooler. The nearest record's high and low are beside each month.
| Month | High | Low | Mean | Precip. | Burlington high | Burlington low |
|---|---|---|---|---|---|---|
| January | 36°F | 19°F | 27.7°F | 3.58 | 36°F | 17°F |
| February | 39°F | 21°F | 30.1°F | 3.10 | 39°F | 18°F |
| March | 48°F | 28°F | 37.6°F | 4.11 | 47°F | 26°F |
| April | 60°F | 37°F | 48.7°F | 4.18 | 60°F | 36°F |
| May | 71°F | 47°F | 59.3°F | 3.73 | 70°F | 47°F |
| June | 80°F | 57°F | 68.1°F | 4.50 | 79°F | 57°F |
| July | 85°F | 63°F | 73.7°F | 4.18 | 84°F | 62°F |
| August | 83°F | 61°F | 71.8°F | 4.05 | 82°F | 60°F |
| September | 75°F | 54°F | 64.6°F | 4.39 | 75°F | 53°F |
| October | 64°F | 42°F | 52.8°F | 5.18 | 63°F | 41°F |
| November | 52°F | 33°F | 42.3°F | 3.97 | 52°F | 32°F |
| December | 41°F | 25°F | 33.1°F | 4.37 | 41°F | 24°F |
In metric: a yearly mean of 10.4°C, January lows of −7°C, July highs of 29°C and 1,254 mm of precipitation a year.
Source: NOAA NCEI U.S. Monthly Gridded Climate Normals 1991-2020 (nClimGrid, accession 0245564); NOAA NCEI 1991-2020 station normals. The grid cell holding the city's Census center point.
What do the station records around New Britain say?
Each row is a NOAA station's own 1991-2020 normals, with the snow and frost dates the grid does not give. A record downhill or nearer the coast than the city can run warmer, one uphill cooler: compare the elevations.
| Record | Where | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Burlington | 11 mi NW | 505 ft | 50.0°F | 17°F | 84°F | 53.5 | 39 | April 25 |
| MeridenMeriden Markham Municipal Airport | 12 mi S | 103 ft | 50.7°F | 19°F | 84°F | 44.9 | – | April 26 |
| Bakersville | 16 mi NW | 686 ft | 47.3°F | 15°F | 82°F | 54.3 | 59 | May 8 |
Source: NOAA NCEI 1991-2020 U.S. Climate Normals; place center and population: Census Bureau 2024. Last frost: the median last spring date of 32°F.
How much snow, how late a frost, what zone and how much sun in New Britain?
NOAA's grid gives no snow, frost dates or records, so these come from the nearest station record, Burlington (11 miles NW, 505 ft). It gets 39 inches of snow in a normal year. The last spring frost (32°F) comes after April 25 in half of years and the first autumn frost before October 18. Its record high is 101°F (2026) and its record low −25°F (2016) (kept since 1961).
The USDA's 2023 Plant Hardiness Zone Map puts New Britain in zone 6b across its 3 ZIP code areas.
Over a year 73% of the sunlight that would reach the ground under clear skies gets through the clouds in the area (3.9 kWh per square metre a day, NASA POWER 2001-2020); July is the sunniest month (79%) and December the cloudiest (67%).
Burlington's page has its months, frost probabilities, records by month and recent years. NOAA's grid has monthly figures only, so there are no day-by-day month pages for New Britain; the nearest record's month pages have them.
Source: NOAA NCEI 1991-2020 normals, station USC00060973; records: ACIS; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; sunshine: NASA POWER.
How does the climate vary across New Britain, ZIP code by ZIP code?
3 ZIP code areas lie wholly or partly in New Britain. On NOAA's grid 06051 is the warmest (51.0°F a year) and 06052 the coolest (50.4°F), a spread of 0.6°F. Each row also names the nearest station record and its frost dates.
| ZIP code | Zone | Year | Jan low | Jul high | Precip. | Nearest record | Last frost | First frost |
|---|---|---|---|---|---|---|---|---|
| 06051 | 6b | 51.0°F | 19°F | 85°F | 48.4 | Meriden (11 mi) | April 26 | October 16 |
| 06052 | 6b | 50.4°F | 19°F | 84°F | 49.8 | Meriden (10 mi) | April 26 | October 16 |
| 06053 | 6b | 50.8°F | 19°F | 85°F | 49.4 | Burlington (10 mi) | April 25 | October 18 |
Source: Census Bureau 2020 ZCTA-to-place relationship file and ZCTA centers; NOAA NCEI gridded and station normals, 1991-2020. A ZIP area counts when at least a tenth of its land (and 0.5 km²) is in the city; its figures are the grid cell at its center; frost dates are the nearest record's medians of 32°F.