Union City, New Jersey climate: NOAA's gridded normals for the city, beside the nearest station records
NOAA's gridded 1991-2020 normals put Union City's center at January lows of 25°F and July highs of 86°F, a yearly mean of 54.7°F and 47.5 inches of precipitation. No NOAA station keeps a record under the city's name. The nearest station record, New York (3 miles E, 130 ft), has January lows of 28°F and July highs of 85°F.
66,918 people (Census Bureau 2024). Distances and directions are from the city's center.
- Jan 40° 25°
- Feb 43° 26°
- Mar 51° 33°
- Apr 62° 42°
- May 72° 52°
- Jun 81° 62°
- Jul 86° 68°
- Aug 85° 66°
- Sep 77° 59°
- Oct 66° 47°
- Nov 55° 38°
- Dec 45° 30°
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 Union City's center.
What is each month like in Union City?
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. | New York high | New York low |
|---|---|---|---|---|---|---|
| January | 40°F | 25°F | 32.6°F | 3.43 | 40°F | 28°F |
| February | 43°F | 26°F | 34.5°F | 2.93 | 42°F | 30°F |
| March | 51°F | 33°F | 41.6°F | 4.16 | 50°F | 36°F |
| April | 62°F | 42°F | 52.2°F | 3.94 | 62°F | 46°F |
| May | 72°F | 52°F | 62.1°F | 3.91 | 71°F | 55°F |
| June | 81°F | 62°F | 71.6°F | 4.39 | 80°F | 64°F |
| July | 86°F | 68°F | 77.0°F | 4.40 | 85°F | 70°F |
| August | 85°F | 66°F | 75.3°F | 4.28 | 83°F | 69°F |
| September | 77°F | 59°F | 68.2°F | 4.16 | 76°F | 62°F |
| October | 66°F | 47°F | 56.7°F | 4.19 | 65°F | 51°F |
| November | 55°F | 38°F | 46.4°F | 3.50 | 54°F | 42°F |
| December | 45°F | 30°F | 37.7°F | 4.26 | 44°F | 34°F |
In metric: a yearly mean of 12.6°C, January lows of −4°C, July highs of 30°C and 1,208 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 Union City 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 |
|---|---|---|---|---|---|---|---|---|
| New YorkNew York Central Park Tower | 3 mi E | 130 ft | 55.8°F | 28°F | 85°F | 49.5 | 30 | March 30 |
| TeterboroTeterboro Airport | 6 mi N | 9 ft | 55.4°F | 26°F | 87°F | 46.3 | – | April 3 |
| Harrison | 6 mi W | 24 ft | 54.8°F | 25°F | 87°F | 50.4 | 28 | April 4 |
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 Union City?
NOAA's grid gives no snow, frost dates or records, so these come from the nearest station record, New York (3 miles E, 130 ft). It gets 30 inches of snow in a normal year. The last spring frost (32°F) comes after March 30 in half of years and the first autumn frost before November 20. Its record high is 106°F (1936) and its record low −15°F (1934) (kept since 1869).
The USDA's 2023 Plant Hardiness Zone Map puts Union City in zone 7b (ZIP code 07087).
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area (4.0 kWh per square metre a day, NASA POWER 2001-2020); July is the sunniest month (82%) and December the cloudiest (66%).
New York'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 Union City; the nearest record's month pages have them.
Source: NOAA NCEI 1991-2020 normals, station USW00094728; 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 Union City, ZIP code by ZIP code?
One ZIP code area lies wholly or partly in Union City. Each row also names the nearest station record and its frost dates.
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.