Almanac Averages and Extremes for December 20
ST. JOHN'S INTL A
NEWFOUNDLAND
| Category (Period of Record) | Value | Year |
|---|---|---|
| Average Maximum Temperature | ||
| Average Minimum Temperature | ||
| Monthly Frequency of Precipitation | ||
| Highest Temperature (2012-2024) | 12.6 °C | 2023 |
| Lowest Temperature (2012-2024) | -11.2 °C | 2016 |
| Greatest Precipitation (2012-2024) | 17.6 mm | 2017 |
| Greatest Rainfall (2012-2024) | 15.6 mm | 2017 |
| Greatest Snowfall (2012-2024) | 4.4 cm | 2019 |
| Most Snow on the Ground (2012-2024) | 25.0 cm | 2017 |
| Year | Maximum Temperature DefinitionMax Temp °C |
Minimum Temperature DefinitionMin Temp °C |
Mean Temperature DefinitionMean Temp °C |
Total Rain DefinitionTotal Rain mm |
Total Snow DefinitionTotal Snow cm |
Total Precipitation DefinitionTotal Precip mm |
Snow on Ground DefinitionSnow on Grnd cm |
Direction of Maximum Gust DefinitionDir of Max Gust 10's deg |
Speed of Maximum Gust DefinitionSpd of Max Gust km/h |
|---|---|---|---|---|---|---|---|---|---|
| 2024 | 3.0 | -2.2 | 0.4 | 0.0 | LegendTT | LegendTT | LegendTT | 10 | 45 |
| 2023 | 12.6 | 7.6 | 10.1 | 0.0 | 0.0 | 0.0 | 21 | 72 | |
| 2022 | 2.6 | -0.2 | 1.2 | 5.8 | 0.0 | 5.8 | 6 | 71 | |
| 2021 | -4.7 | -8.7 | -6.7 | 0.0 | LegendTT | LegendTT | 8 | 32 | 36 |
| 2020 | -2.9 | -6.2 | -4.6 | 0.0 | 0.0 | 0.0 | LegendTT | 35 | 37 |
Legend
- A = Accumulated
- B = More than one occurrence and estimated
- C = Precipitation occurred, amount uncertain
- E = Estimated
- F = Accumulated and estimated
- L = Precipitation may or may not have occurred
- M = Missing
- N = Temperature missing but known to be > 0
- S = More than one occurrence
- T = Trace
- Y = Temperature missing but known to be < 0
- [empty] = Indicates an unobserved value
- ^ = The value displayed is based on incomplete data
- † = Data that is not subject to review by the National Climate Archives
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