ClimateAverages

New Brunswick Climate

New Jersey, United States of America · population 57,035 · 584 weather stations within 200 km · records 1750 to 2025

Average annual daytime high
17.0°C
Warmest month · July
29.5°C
Typical daytime high
Coldest month · January
-5.6°C
Typical overnight low

New Brunswick has an average annual daytime high of 17.0°C, based on the 1951 to 1980 baseline. Its warmest month is July, when highs typically reach 29.5°C, and its coldest is January, with overnight lows near -5.6°C.

Month by month averages

MonthAvg highAvg low
January3.7°C-5.6°CColdest
February5.1°C-5.0°C
March9.9°C-0.7°C
April16.5°C4.3°C
May22.2°C9.6°C
June27.1°C14.7°C
July29.5°C17.5°CWarmest
August28.6°C17.0°C
September25.0°C13.1°C
October18.8°C6.7°C
November12.3°C1.9°C
December5.7°C-3.4°C

Temperature range across the year

-8°2°12°22°32°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2011
+2.3°C vs. 1951–1980
Coldest year on record
1783
-2.4°C vs. 1951–1980

These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.

Is New Brunswick getting hotter?

Since 1900, New Brunswick's average temperature has risen by +1.9°C. Compared to the earliest station records that begin in 1750, warming totals +2.5°C.

10.8°11.4°12.1°12.7°13.4°1951–1980 baseline190019251950197520002025

20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.

Best time to visit
April to October

Daytime highs sit within a comfortable 15°C to 26°C range.

FAQ

What is the average temperature in New Brunswick?

New Brunswick's average annual daytime high is 17.0°C, based on the 1951 to 1980 baseline period. The warmest month is July, with highs averaging 29.5°C, and the coldest is January, with lows averaging -5.6°C.

What is the warmest month in New Brunswick?

July is the warmest month in New Brunswick, with typical daytime highs of 29.5°C.

What is the hottest year on record for New Brunswick?

2011 is the hottest year on record for New Brunswick, running +2.3°C above the 1951 to 1980 baseline.

Is New Brunswick getting hotter?

Yes. Since 1900, New Brunswick has warmed by roughly +1.9°C.

When is the best time to visit New Brunswick?

April to October typically offers the most comfortable daytime highs, in the 15°C to 26°C range.

Nearby cities

Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.