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Monitoring Station Details: 219

Maxwell Lake - 1 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: 219

Name: Maxwell Lake - 1 m

Site UID: MAX003

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 5.6 5.3 6.2
2009 Apr 9.4 5.2 13.9
2009 May 14.9 11.9 20.4
2009 Jun 21.1 18.7 23.8
2009 Jul 22.2 19.0 27.6
2009 Aug 22.4 20.0 27.5
2009 Sep 19.0 16.0 21.8
2009 Oct 12.9 10.5 16.2
2009 Nov 8.1 6.5 10.7
2009 Dec 4.3 3.2 6.8
2010 Jan 4.1 3.4 4.9
2010 Feb 5.3 4.8 6.1
2010 Mar 6.8 5.7 8.6
2010 Apr 9.6 6.8 12.4
2010 May 14.2 10.9 17.6
2010 Jun 17.7 14.3 20.8
2010 Jul 21.9 18.0 24.8
2010 Aug 22.4 19.3 24.7
2010 Sep 17.5 16.1 20.1
2010 Oct 13.7 11.0 17.0
2010 Nov 8.3 4.7 11.0
2010 Dec 4.1 3.1 4.8
2011 Jan 3.6 2.8 4.1
2011 Feb 3.7 2.7 4.3
2011 Mar 4.4 2.8 6.9
2011 Apr 8.2 6.5 10.5
2011 May 13.1 10.2 16.2
2011 Jun 17.8 14.9 20.8
2011 Jul 20.0 17.5 22.1
2011 Aug 21.8 20.7 23.3
2011 Sep 19.5 16.1 21.9
2011 Oct 12.9 10.1 16.2
2011 Nov 7.3 5.3 10.3
2011 Dec 4.3 3.4 5.3
2012 Jan 3.3 2.5 3.9
2012 Feb 3.9 3.2 4.6
2012 Mar 4.7 3.6 6.5
2012 Apr 9.4 5.8 13.0
2012 May 14.7 11.6 17.5
2012 Jun 16.4 14.7 18.6
2012 Jul 21.2 17.1 24.7
2012 Aug 22.4 19.5 24.3
2012 Sep 18.6 17.0 20.4
2012 Oct 13.3 10.1 17.6
2012 Nov 8.4 6.4 10.5
2012 Dec 4.8 3.0 6.6
2013 Jan 3.3 2.7 4.0
2013 Feb 4.2 3.7 4.7
2013 Mar 6.2 4.4 10.3
2013 Apr 10.7 8.8 13.5
2013 May 16.1 11.5 20.0
2013 Jun 18.8 15.5 20.9
2013 Jul 23.5 20.8 25.3
2013 Aug 22.7 20.2 25.1
2013 Sep 19.5 15.1 21.9
2013 Oct 13.0 11.0 15.2
2013 Nov 8.4 6.2 11.1
2013 Dec 4.1 3.0 6.5
2014 Jan 3.6 2.8 4.1
2014 Feb 3.0 1.8 4.0
2014 Mar 5.2 3.4 7.8
2014 Apr 10.5 7.5 12.7
2014 May 16.5 12.8 19.5
2014 Jun 19.8 18.0 22.0
2014 Jul 22.5 19.7 26.0
2014 Aug 23.5 21.4 25.2
2014 Sep 19.4 17.3 21.8
2014 Oct 15.2 12.2 17.7
2014 Nov 8.9 6.2 12.2
2014 Dec 5.3 4.3 6.2
2015 Jan 4.2 4.0 4.4
2016 Apr 18.1 12.4 22.0
2016 May 18.5 14.1 21.3
2016 Jun 19.5 17.6 23.9
2016 Jul 21.7 19.8 25.3
2016 Aug 22.8 20.9 24.8
2016 Sep 18.6 16.0 22.1
2016 Oct 12.9 10.7 16.7
2016 Nov 9.7 7.7 10.9
2016 Dec 4.7 2.9 7.7
2017 Jan 3.5 2.7 4.7
2017 Feb 4.5 4.1 5.2
2017 Mar 5.2 3.8 8.0
2017 Apr 9.8 7.5 12.8
2017 May 15.7 11.7 23.2
2017 Jun 19.6 16.9 23.9
2017 Jul 23.0 21.2 25.1
2017 Aug 23.5 22.0 25.8
2017 Sep 20.1 17.2 23.9
2017 Oct 13.4 10.8 17.2
2017 Nov 8.0 6.8 11.3
2017 Dec 5.0 3.1 6.9
2018 Jan 3.8 2.9 4.3
2018 Feb 4.4 3.7 5.3
2018 Mar 5.7 3.7 8.4
2018 Apr 9.9 7.6 16.0
2018 May 18.9 13.6 22.7
2018 Jun 19.5 16.9 23.9
2018 Jul 22.9 19.2 27.2
2018 Aug 23.4 20.4 26.9
2018 Sep 18.2 15.8 21.2
2018 Oct 13.3 11.5 16.1
2018 Nov 9.5 7.8 11.9
2018 Dec 5.9 4.8 7.9
2019 Jan 4.6 4.3 5.1
2019 Feb 4.0 3.4 4.8
2019 Mar 5.5 4.1 11.2
2019 Apr 11.3 9.9 13.8
2019 May 17.6 13.4 22.5
2019 Jun 21.0 18.9 23.7
2019 Jul 21.8 20.2 23.9
2019 Aug 22.7 21.1 25.0
2019 Sep 19.3 15.4 22.7
2019 Oct 12.5 9.4 15.8
2019 Nov 8.5 6.0 9.6
2019 Dec 5.4 4.7 6.0
2020 Jan 3.9 2.4 5.0
2020 Feb 4.1 3.2 5.5
2020 Mar 5.9 4.6 8.0
2020 Apr 11.1 7.0 14.6
2020 May 16.0 12.4 20.0
2020 Jun 18.6 16.6 22.6
2020 Jul 21.3 18.5 25.2
2020 Aug 22.6 20.6 25.3
2020 Sep 19.7 17.0 22.0
2020 Oct 14.3 10.4 18.5
2020 Nov 8.0 6.3 10.6
2020 Dec 5.3 4.2 6.4
2021 Jan 4.3 3.7 5.0
2021 Feb 3.3 2.1 4.5
2021 Mar 5.4 3.3 7.7
2021 Apr 11.2 7.3 16.0
2021 May 16.1 13.5 20.0
2021 Jun 20.7 16.8 29.0
2021 Jul 25.0 22.3 27.7
2021 Aug 23.1 19.6 26.6
2021 Sep 18.2 15.3 20.9
2021 Oct 14.1 12.3 15.5
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 14.8 3.2 27.6 6.6 2.3 Dec 25 Jul 31 6,698
2010 12.2 3.1 24.8 6.6 2.2 Dec 31 Jul 29 8,760
2011 11.4 2.7 23.3 6.8 1.7 Feb 28 Aug 8 8,759
2012 11.8 2.5 24.7 6.8 1.7 Jan 16 Jul 15 8,784
2013 12.6 2.7 25.3 7.2 2.4 Jan 11 Jul 26 8,759
2014 12.9 1.8 26.0 7.4 1.4 Feb 7 Jul 17 8,759
2015 4.2 4.0 4.4 0.1 0.3 Jan 3 Jan 1 330
2016 16.1 2.9 25.3 6.1 9.2 Dec 24 Jul 29 5,984
2017 12.7 2.7 25.8 7.4 2.4 Jan 5 Aug 12 8,760
2018 13.0 2.9 27.2 7.2 2.1 Jan 5 Jul 31 8,760
2019 12.9 3.4 25.0 7.1 1.9 Feb 6 Aug 8 8,759
2020 12.6 2.4 25.3 6.9 1.9 Jan 20 Aug 5 8,784
2021 14.2 2.1 29.0 7.9 2.5 Feb 15 Jun 30 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 26.6 27.1 22.4 142 112 23.7 6,698
2010 24.0 24.6 22.4 144 73 23.2 8,760
2011 22.4 22.9 21.8 134 86 21.6 8,759
2012 23.5 24.0 22.4 150 67 23.0 8,784
2013 24.5 25.1 22.7 150 109 23.9 8,759
2014 24.9 25.5 23.5 165 115 23.8 8,759
2015 4.2 4.2 — 0 0 4.2 330
2016 24.0 24.7 22.8 165 117 23.5 5,984
2017 24.5 25.1 23.5 147 111 23.6 8,760
2018 25.9 26.6 23.4 157 111 24.3 8,760
2019 23.8 24.4 22.7 152 118 22.9 8,759
2020 24.2 25.0 22.6 158 98 22.8 8,784
2021 26.4 27.4 23.1 153 99 25.7 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.