Saint John NB - Recent December Temperatures, Rain & Snow
The numbers here describe what the December weather in Saint John, New Brunswick Canada was like for every year since 2010. A series of tables gives December data by year for temperature, precipitation and snowfall.
They begin with average maximum and minimum temperatures in degrees Fahrenheit and Celsius. That's followed by how many hot or cold days occurred each December. Then there's information on how much rain and snow actually landed this month during recent years, as well as how often Saint John had wet or snowy weather.
The climate data come from weather measurements made at the Saint John Airport.
Temperature
| High °F | Low °F | Year | High °C | Low °C |
|---|---|---|---|---|
| 38 | 22 | 2023 | 3 | -5 |
| 38 | 24 | 2022 | 3 | -5 |
| 36 | 19 | 2021 | 2 | -7 |
| 40 | 25 | 2020 | 5 | -4 |
| 35 | 18 | 2019 | 2 | -8 |
| 31 | 13 | 2018 | 0 | -11 |
| 30 | 13 | 2017 | -1 | -11 |
| 33 | 14 | 2016 | 0 | -10 |
| 40 | 26 | 2015 | 5 | -3 |
| 37 | 23 | 2014 | 3 | -5 |
| 29 | 12 | 2013 | -2 | -11 |
| 36 | 19 | 2012 | 2 | -7 |
| 40 | 20 | 2011 | 4 | -7 |
| 36 | 23 | 2010 | 2 | -5 |
| -18 °C 0 °F |
0 °C 32 °F |
Year | 21 °C 70 °F |
|---|---|---|---|
| 0 | 24 | 2023 | 0 |
| 0 | 25 | 2022 | 0 |
| 0 | 24 | 2021 | 0 |
| 0 | 22 | 2020 | 0 |
| 0 | 27 | 2019 | 0 |
| 0 | 29 | 2018 | 0 |
| 5 | 30 | 2017 | 0 |
| 5 | 30 | 2016 | 0 |
| 0 | 23 | 2015 | 0 |
| 2 | 27 | 2014 | 0 |
| 8 | 26 | 2013 | 0 |
| 0 | 23 | 2012 | 0 |
| 1 | 28 | 2011 | 0 |
| 0 | 22 | 2010 | 0 |
Precipitation
This table gives the total precipitation that fell on Saint John during December in each year from 2010. The number of days with precipitation counts the days when rainfall or snowfall (when melted) amounted to 0.254 millimeters (0.01 inches) or more.
| Days | Year | Inches | Millimetres |
|---|---|---|---|
| 12 | 2023 | 5.7 | 144 |
| 17 | 2022 | 7.7 | 196 |
| – | 2021 | – | – |
| – | 2020 | – | – |
| 11 | 2019 | 7.0 | 177 |
| 10 | 2018 | 6.1 | 156 |
| 12 | 2017 | 4.7 | 119 |
| 15 | 2016 | 5.4 | 137 |
| 19 | 2015 | 6.9 | 176 |
| 14 | 2014 | 11.1 | 282 |
| 18 | 2013 | 5.2 | 131 |
| 14 | 2012 | 5.5 | 140 |
| 11 | 2011 | 5.2 | 133 |
| 14 | 2010 | 6.8 | 172 |
Snow
| Days | Year | Inches | Centimetres |
|---|---|---|---|
| 1 | 2023 | 4.0 | 10.2 |
| 5 | 2022 | 10.7 | 27.2 |
| 3 | 2021 | 10.2 | 25.9 |
| – | 2020 | – | – |
| 1 | 2019 | 3.7 | 9.4 |
| 4 | 2018 | 12.6 | 32.0 |
| 3 | 2017 | 12.4 | 31.5 |
| 7 | 2016 | 30.6 | 77.7 |
| 5 | 2015 | 22.8 | 57.9 |
| 1 | 2014 | 3.2 | 8.1 |
| 6 | 2013 | 27.6 | 70.1 |
| 4 | 2012 | 22.8 | 57.9 |
| 2 | 2011 | 4.9 | 12.4 |
| 7 | 2010 | 20.1 | 51.1 |
Reference
Environment and Climate Change Canada. Historical Climate Data. Historical Data
Jay Lawrimore. 2016. Global Summary of the Month, Version 1.0. NOAA National Centers for Environmental Information.