St. John's NL - Recent August Temperatures and Rainfall





The numbers here describe what the August weather in St. John's, Newfoundland Canada was like for every year since 2010. A series of tables gives August data by year for temperature and precipitation.

They begin with average maximum and minimum temperatures in degrees Fahrenheit and Celsius. That's followed by how many really hot days occurred each August. Then there's information on how much rain actually landed this month during recent years, as well as how often St. John's had wet weather.

The climate data come from weather measurements made at the St. John's Airport.

Temperature Weather iconTemperature

August temperature averages by year in St. John's
High °F Low °F Year High °C Low °C
71 54 2021 22 12
72 55 2020 22 13
70 54 2019 21 12
73 55 2018 23 13
68 53 2017 20 12
69 53 2016 21 12
72 55 2015 22 13
67 56 2014 19 14
70 55 2013 21 13
72 57 2012 22 14
65 52 2011 18 11
67 54 2010 19 12
Number of days in August when the temperature in St. John's rose to at least 21 or 32 degrees Celsius
Year 21 °C
70 °F
32 °C
90 °F
2021 18 0
2020 17 0
2019 16 0
2018 20 0
2017 13 0
2016 17 0
2015 23 0
2014 9 0
2013 16 0
2012 20 0
2011 15 0
2010 9 0

Rainy Weather iconRain

This table gives the total precipitation that fell on St. John's during August in each year from 2010. The number of days with precipitation counts the days when rainfall amounted to 0.254 millimeters (0.01 inches) or more.

Total rainfall for August in St. John's
Days Year Inches Milli­metres
12 2021 2.0 51
12 2020 5.4 136
13 2019 2.5 62
12 2018 3.3 85
17 2017 5.6 141
11 2016 4.2 106
11 2015 1.9 49
20 2014 7.8 199
13 2013 5.3 134
18 2012 3.9 99
8 2011 4.0 100
9 2010 2.7 69
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. 

St. John's - Recent Years
St. John's - Extremes
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