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Union City weather by month

What a typical year looks like in Union City, New Jersey: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at New York-Central Park Area, 6 km from Union City; records cover 1869–2026.

Today’s Union City forecast

The year at a glance

January: typical high 39.5°F, low 27.9°F, precipitation 3.64 in. February: typical high 42.2°F, low 29.5°F, precipitation 3.19 in. March: typical high 49.9°F, low 35.8°F, precipitation 4.29 in. April: typical high 61.8°F, low 45.5°F, precipitation 4.09 in. May: typical high 71.4°F, low 55°F, precipitation 3.96 in. June: typical high 79.7°F, low 64.4°F, precipitation 4.54 in. July: typical high 84.9°F, low 70.1°F, precipitation 4.6 in. August: typical high 83.3°F, low 68.9°F, precipitation 4.56 in. September: typical high 76.2°F, low 62.3°F, precipitation 4.31 in. October: typical high 64.5°F, low 51.4°F, precipitation 4.38 in. November: typical high 54°F, low 42°F, precipitation 3.58 in. December: typical high 44.3°F, low 33.8°F, precipitation 4.38 in.−20°−29°0°−18°20°−7°40°4°60°16°80°27°100°38°120°49°40°4°28°−2°Jan42°6°30°−1°Feb50°10°36°2°Mar62°17°46°8°Apr71°22°55°13°May80°27°64°18°Jun85°29°70°21°Jul83°29°69°21°Aug76°25°62°17°Sep65°18°51°11°Oct54°12°42°6°Nov44°7°34°1°DecPrecipitation
Bars: typical low to high (official normals, 1991–2020) Record high Record low
Precipitation a year
49.5 in1258 mm
Snow a year
30 in76 cm
Last spring freeze
Mar 29
First fall freeze
Nov 18
Heating degree days
4,553
Cooling degree days
1,222

Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 12°−11° (heating, 99%) and 95°35° (cooling, 1%).

Month by month

Union City in January

Highs average 40°4° and lows 28°−2°, with 3.6 in92 mm of precipitation and 9 in22 cm of snow in a typical January.

Record high
72°22° (1950)
Record low
−6°−21° (1882)
Heating degree days
970
Cooling degree days
0

Union City in February

Highs average 42°6° and lows 30°−1°, with 3.2 in81 mm of precipitation and 10 in26 cm of snow in a typical February.

Record high
78°26° (2018)
Record low
−15°−26° (1934)
Heating degree days
816
Cooling degree days
0

Union City in March

Highs average 50°10° and lows 36°2°, with 4.3 in109 mm of precipitation and 5 in13 cm of snow in a typical March.

Record high
86°30° (1945)
Record low
3°−16° (1872)
Heating degree days
688
Cooling degree days
1

Union City in April

Highs average 62°17° and lows 46°8°, with 4.1 in104 mm of precipitation and 0.4 in1 cm of snow in a typical April.

Record high
96°36° (1976)
Record low
12°−11° (1923)
Heating degree days
354
Cooling degree days
14

Union City in May

Highs average 71°22° and lows 55°13°, with 4 in101 mm of precipitation in a typical May.

Record high
99°37° (1962)
Record low
32°0° (1891)
Heating degree days
122
Cooling degree days
66

Union City in June

Highs average 80°27° and lows 64°18°, with 4.5 in115 mm of precipitation in a typical June.

Record high
101°38° (1934)
Record low
44°7° (1945)
Heating degree days
15
Cooling degree days
226

Union City in July

Highs average 85°29° and lows 70°21°, with 4.6 in117 mm of precipitation in a typical July.

Record high
106°41° (1936)
Record low
52°11° (1943)
Heating degree days
0
Cooling degree days
388

Union City in August

Highs average 83°29° and lows 69°21°, with 4.6 in116 mm of precipitation in a typical August.

Record high
104°40° (1918)
Record low
50°10° (1885)
Heating degree days
1
Cooling degree days
345

Union City in September

Highs average 76°25° and lows 62°17°, with 4.3 in109 mm of precipitation in a typical September.

Record high
102°39° (1953)
Record low
39°4° (1912)
Heating degree days
32
Cooling degree days
159

Union City in OctoberThis month

Highs average 65°18° and lows 51°11°, with 4.4 in111 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.

Record high
94°34° (1941)
Record low
28°−2° (1936)
Heating degree days
240
Cooling degree days
22

Union City in November

Highs average 54°12° and lows 42°6°, with 3.6 in91 mm of precipitation and 0.5 in1.3 cm of snow in a typical November.

Record high
84°29° (1950)
Record low
5°−15° (1875)
Heating degree days
511
Cooling degree days
1

Union City in December

Highs average 44°7° and lows 34°1°, with 4.4 in111 mm of precipitation and 5 in12 cm of snow in a typical December.

Record high
75°24° (1998)
Record low
−13°−25° (1917)
Heating degree days
804
Cooling degree days
0