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Almanac Averages and Extremes for December 20

ST. JOHN'S INTL A
NEWFOUNDLAND

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Almanac Averages & Extremes
Averages and Extremes
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
Most Recent Daily Data for December 20
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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