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Monitoring Station Details: 218

Maxwell Lake - 6 m

Government of British Columbia - Water quality monitoring program
Dataset Catalog Metadata:

PSF ID: SWP_DTS_A010

Dataset Name: WaterTemperature

Provider Organization: Government of British Columbia

Program / Project: Water quality monitoring program

Count Sites: 266

Open Access: Y

FAIR Access: N

Digital Identifier: —

Date Catalog: 2023-11-22

Date PSE: –

Station Data:

ID: 218

Name: Maxwell Lake - 6 m

Site UID: MAX002

Latitude: 48.82200000

Longitude: -123.53800000

Elevation (m): –

Start Year: 2009

End Year: 2021

Timezone: UTC

Provider Organization: Government of British Columbia

Drainage: –

Land Classification: –

Water Body Type: stream

Collection Status: decommissioned

# Temperature Records: 109,987

# Days of Data: 4,584

Indigenous Territories:

(no records added yet)
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Water Temperature Time Series (Raw Data)

The following graph shows the raw temperature time series for this station. Use the date range selector to filter by specific dates, or click and drag on the chart to zoom in. Double-click to reset the zoom. Yellow highlighted regions indicate gaps in the data where values were out of range or missing.

Reset (last 10000)
Showing most recent 10,000 records (10,000 points).
Daily Summaries of Water Temperature

Daily summary statistics (mean, min, max) for each day of the year, plotted across all available years. Click the button below to load and display the chart.

Monthly Summaries of Water Temperature

The following table shows the mean, min, and max year-month summary statistics. Select "All months" from the dropdown to show the entire series, or filter by a specific month to compare values across years. The plot shows the mean monthly temperature for each year-month combination (solid lines) with shading indicating the min and max values for that month.

Year Month Monthly Mean Monthly Min Monthly Max
2009 Mar 5.2 4.9 5.6
2009 Apr 5.6 5.2 6.5
2009 May 7.0 6.0 8.4
2009 Jun 9.3 7.8 10.9
2009 Jul 11.8 10.1 13.9
2009 Aug 13.6 12.5 15.8
2009 Sep 15.5 13.6 17.5
2009 Oct 12.7 10.4 15.9
2009 Nov 8.1 6.5 10.5
2009 Dec 4.3 3.5 6.7
2010 Jan 4.1 3.6 4.6
2010 Feb 5.0 4.4 6.1
2010 Mar 5.9 5.2 7.1
2010 Apr 7.2 6.3 8.0
2010 May 8.5 7.5 9.6
2010 Jun 10.1 8.9 11.8
2010 Jul 12.0 10.6 13.7
2010 Aug 13.9 12.5 16.8
2010 Sep 15.7 14.1 17.7
2010 Oct 13.5 10.9 16.1
2010 Nov 8.2 4.7 11.0
2010 Dec 4.1 3.3 4.7
2011 Jan 3.6 3.1 4.0
2011 Feb 3.8 3.2 4.1
2011 Mar 4.2 3.1 6.1
2011 Apr 6.3 5.3 7.6
2011 May 7.7 6.5 11.2
2011 Jun 9.2 7.9 11.0
2011 Jul 11.1 9.6 13.2
2011 Aug 13.0 11.4 17.1
2011 Sep 14.7 13.2 17.0
2011 Oct 12.8 10.1 16.0
2011 Nov 7.3 5.3 10.2
2011 Dec 4.2 3.7 5.3
2012 Jan 3.5 3.1 3.9
2012 Feb 3.9 3.3 4.2
2012 Mar 4.4 3.8 5.8
2012 Apr 6.0 5.1 6.7
2012 May 7.2 6.2 8.4
2012 Jun 8.7 7.4 10.2
2012 Jul 10.6 9.2 12.4
2012 Aug 12.7 11.0 14.8
2012 Sep 14.8 12.9 16.9
2012 Oct 13.0 10.1 16.5
2012 Nov 8.3 6.4 10.1
2012 Dec 4.9 3.3 6.5
2013 Jan 3.4 3.0 3.7
2013 Feb 4.2 3.7 4.5
2013 Mar 5.2 4.3 6.2
2013 Apr 6.4 5.9 7.2
2013 May 7.7 6.7 8.8
2013 Jun 9.2 8.1 10.5
2013 Jul 11.5 9.4 13.7
2013 Aug 13.9 12.3 16.4
2013 Sep 15.6 14.0 19.3
2013 Oct 12.9 11.0 15.0
2013 Nov 8.4 6.2 11.0
2013 Dec 4.2 3.4 6.4
2014 Jan 3.7 3.3 4.0
2014 Feb 3.1 2.6 4.0
2014 Mar 4.4 3.4 5.8
2014 Apr 5.9 5.1 6.9
2014 May 7.5 6.4 8.8
2014 Jun 9.5 8.1 11.4
2014 Jul 11.8 10.0 13.8
2014 Aug 14.0 12.4 17.0
2014 Sep 15.7 13.7 17.8
2014 Oct 14.8 12.1 16.8
2014 Nov 8.8 6.1 12.1
2014 Dec 5.3 4.3 6.1
2015 Jan 4.1 4.0 4.3
2016 May 9.1 8.3 10.1
2016 Jun 10.9 9.3 12.8
2016 Jul 13.3 11.5 15.0
2016 Aug 15.5 13.8 17.2
2016 Sep 17.1 15.8 18.4
2016 Oct 12.8 10.6 15.9
2016 Nov 9.5 7.7 10.7
2016 Dec 4.8 3.3 7.7
2017 Jan 3.6 3.3 4.0
2017 Feb 4.1 4.0 4.4
2017 Mar 4.7 3.8 6.3
2017 Apr 6.7 5.5 7.9
2017 May 8.0 6.7 9.2
2017 Jun 9.9 8.6 11.5
2017 Jul 12.5 10.5 14.2
2017 Aug 14.8 13.1 16.5
2017 Sep 17.0 15.2 18.6
2017 Oct 13.2 10.7 17.0
2017 Nov 7.9 6.8 10.8
2017 Dec 5.1 3.6 6.8
2018 Jan 3.9 3.6 4.1
2018 Feb 4.3 3.8 5.0
2018 Mar 4.8 3.8 6.3
2018 Apr 6.6 5.1 8.0
2018 May 8.5 7.2 9.9
2018 Jun 10.5 9.2 12.6
2018 Jul 13.1 11.3 15.1
2018 Aug 15.7 14.0 17.8
2018 Sep 17.0 15.6 18.5
2018 Oct 13.0 11.4 15.7
2018 Nov 9.4 7.8 11.6
2018 Dec 5.8 4.8 7.8
2019 Jan 4.5 4.3 4.9
2019 Feb 4.0 3.8 4.5
2019 Mar 4.3 4.1 5.2
2019 Apr 5.6 4.7 6.8
2019 May 7.9 6.3 10.4
2019 Jun 11.4 9.5 13.5
2019 Jul 14.6 12.6 16.9
2019 Aug 17.4 15.2 19.7
2019 Sep 18.1 15.3 20.1
2019 Oct 12.4 9.4 15.4
2019 Nov 8.5 6.0 9.4
2019 Dec 5.3 4.8 6.1
2020 Jan 4.0 3.0 5.0
2020 Feb 4.1 3.6 5.1
2020 Mar 5.1 4.4 6.9
2020 Apr 6.8 5.5 8.0
2020 May 8.5 7.1 10.2
2020 Jun 10.7 9.0 13.1
2020 Jul 13.6 11.6 15.7
2020 Aug 16.5 14.6 18.7
2020 Sep 18.0 16.8 19.2
2020 Oct 14.1 10.4 17.2
2020 Nov 8.0 6.4 10.4
2020 Dec 5.3 4.3 6.4
2021 Jan 4.4 3.8 4.6
2021 Feb 3.4 2.7 4.4
2021 Mar 4.8 3.3 6.8
2021 Apr 7.0 5.5 8.2
2021 May 8.7 7.2 9.9
2021 Jun 11.0 9.2 13.4
2021 Jul 14.2 12.2 16.0
2021 Aug 16.6 15.0 18.8
2021 Sep 17.4 15.3 18.8
2021 Oct 14.1 12.3 15.3
Yearly Summaries of Water Temperature

The following tables show basic annual summary statistics for water temperature at this station. See the metric definitions below for details.

Basic Annual Statistics
Year Mean Annual Temp (MAT) Min Max SD Max Daily Range Day of Min Day of Max (n) Records
2009 9.7 3.5 17.5 3.7 2.9 Dec 15 Sep 26 6,698
2010 9.0 3.3 17.7 3.9 3.0 Dec 30 Sep 5 8,760
2011 8.2 3.1 17.1 3.9 4.6 Jan 14 Aug 24 8,759
2012 8.2 3.1 16.9 3.8 3.5 Jan 15 Sep 10 8,784
2013 8.6 3.0 19.3 4.0 4.0 Jan 11 Sep 21 8,758
2014 8.8 2.6 17.8 4.4 3.6 Feb 7 Sep 13 8,760
2015 4.1 4.0 4.3 0.1 0.2 Jan 3 Jan 1 332
2016 11.7 3.3 18.4 3.8 1.9 Dec 25 Sep 9 5,643
2017 9.0 3.3 18.6 4.4 1.9 Jan 4 Sep 16 8,760
2018 9.4 3.6 18.5 4.4 2.2 Jan 1 Sep 5 8,760
2019 9.5 3.8 20.1 5.0 1.9 Feb 5 Sep 12 8,759
2020 9.6 3.0 19.2 4.8 2.3 Jan 18 Sep 9 8,784
2021 9.9 2.7 18.8 5.0 2.4 Feb 15 Aug 29 6,856
Custom summary metrics for aquatic ecology

The following table shows additional annual summary statistics commonly used in fisheries and aquatic science, including thermal thresholds and rolling weekly averages.

Year Maximum Weekly Avg. Mean Temps (MWAT, 7-DADA, C) Maximum Weekly Avg. Max Temps (MWMT, 7-DADM, C) Mean Aug Temp (C) Days Above 15C (n) Days Above 19C (n) 95pct Daily Mean Temp (C) (n) Records
2009 16.2 17.0 13.6 40 0 15.6 6,698
2010 15.9 16.9 13.9 49 0 15.7 8,760
2011 15.9 16.5 13.0 31 0 14.5 8,759
2012 15.5 16.4 12.7 31 0 15.1 8,784
2013 16.5 17.7 13.9 45 1 15.3 8,758
2014 16.4 17.3 14.0 63 0 16.0 8,760
2015 4.1 4.2 — 0 0 4.2 332
2016 17.6 18.1 15.5 64 0 17.3 5,643
2017 17.7 18.3 14.8 53 0 16.8 8,760
2018 17.8 18.3 15.7 65 0 16.9 8,760
2019 19.0 19.5 17.4 83 19 18.6 8,759
2020 18.5 18.9 16.5 81 3 18.0 8,784
2021 18.1 18.6 16.6 74 0 17.9 6,856
Metric Definitions
Mean Annual Temp (MAT)
Mean annual temperature calculated from all records in the year.
Min
Minimum annual temperature recorded.
Max
Maximum annual temperature recorded.
SD
Standard deviation of yearly temperature values.
Max Daily Range
Maximum of daily range (maximum difference between the daily maximum and daily minimum temperatures).
(n) Records
Number of records in the year used to compute annual statistics.
MWAT (7-DADA)
Maximum Weekly Average Temperature. Annual maximum identified from a 7-day rolling average of daily mean temperatures.
MWMT (7-DADM)
Maximum Weekly Maximum Temperature. Annual maximum identified from a 7-day rolling average of daily maximum temperatures.
Mean Aug Temp
Annual mean of August daily mean temperatures.
Days Above 15C
Count of days where the daily maximum temperature exceeds 15°C.
Days Above 19C
Count of days where the daily maximum temperature exceeds 19°C.
95pct Daily Mean Temp
Value representing the 95th percentile of daily mean temperatures.