New Brunswick (NJ) monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at New Brunswick

New Brunswick average temperature chart (Celsius) New Brunswick average temperature chart (Fahrenheit)
Average monthly temperatures in New Brunswick (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 2.7 4.5 10 15.9 21.8 26.7 29.2 28.3 24.5 18.6 12.2 5.5
°F 36.9 40 50 60.7 71.3 80.1 84.6 82.9 76.1 65.4 54 42

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

New Brunswick monthly rainfall chart (mm) New Brunswick monthly rainfall chart (inches)
Average monthly rainfall in New Brunswick (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 87 76 100 100 107 88 123 113 105 83 102 97
inches 3.4 3 3.9 3.9 4.2 3.5 4.9 4.5 4.1 3.2 4 3.8
Rainy days 10 10 11 11 11 10 10 9 8 8 10 11

Average daily sunshine

The bar chart below shows the average daily sunshine hours in New Brunswick

New Brunswick average daily sunshine chart
Average daily sunshine New Brunswick
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.7 6.4 7.3 8.1 8.7 9.4 9.4 9 7.8 7.2 5.4 5

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

New Brunswick average minimum / maximum temperatures (Celsius) New Brunswick average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in New Brunswick (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -6.2 -5.1 -0.4 4.4 9.9 15 17.9 17.3 13 6.8 2.4 -3
Max °C 3 4.7 10.3 16.2 22.1 27 29.5 28.6 24.8 18.9 12.5 5.8
Min °F 20.9 22.8 31.2 39.9 49.8 59 64.2 63.1 55.4 44.2 36.2 26.7
Max °F 29.1 31.6 40.8 50.5 60.8 69.8 74.7 73.2 66 55 45.3 34.5

Sea temperature

The graph below shows the average sea temperature.

New Brunswick average sea temperature chart (Celsius) New Brunswick average sea temperature chart (Fahrenheit)
Average sea temperature around New Brunswick in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 5.6 3.7 3.9 6.4 11 16.9 21.9 23.1 21 16.9 12.4 8.6
°F 42.1 38.7 39 43.5 51.8 62.4 71.4 73.6 69.8 62.4 54.3 47.5

Wind speed

The graph below shows the average wind speed.

New Brunswick average winspeed by month (km/h) New Brunswick average winspeed by month (mph)
Average wind speed in New Brunswick (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 19 20 21 20 18 16 15 15 16 16 18 19
mph 12 12 13 13 11 10 9 9 10 10 11 12

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

New Brunswick relative humidity averages
Average relative humidity in New Brunswick
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
66% 64% 62% 60% 65% 67% 67% 69% 71% 69% 68% 68%

Other monthly averages

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New Brunswick weather stats

New Brunswick weather statistics
Hottest month: July 29.2°C 84.6°F
Driest month: February 76mm 3ins
Sunniest month: August 9hrs
Coldest month: January 2.7°C 36.9°F
Wettest month: July 123mm 4.8ins
Warmest sea: August 23.1°C 73.6°F
Map showing location of New Brunswick (40.48622, -74.45182)

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