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Monitoring Station Details: 109

Upper Vernon Creek below Swalwell Lake

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: 109

Name: Upper Vernon Creek below Swalwell Lake

Site UID: 08NM0005

Latitude: 50.04100000

Longitude: -119.24500000

Elevation (m): –

Start Year: 2012

End Year: 2023

Timezone: UTC

Provider Organization: Government of British Columbia

Drainage: –

Land Classification: –

Water Body Type: stream

Collection Status: decommissioned

# Temperature Records: 98,237

# Days of Data: 4,094

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
2012 Jun 12.5 10.2 15.8
2012 Jul 17.5 12.5 23.1
2012 Aug 18.9 15.5 22.0
2012 Sep 14.4 12.4 17.5
2012 Oct 8.5 5.2 13.7
2012 Nov 5.5 4.9 5.8
2013 May 9.9 9.2 11.7
2013 Jun 13.0 8.2 16.9
2013 Jul 18.0 13.9 20.9
2013 Aug 18.1 14.9 21.2
2013 Sep 14.6 8.7 19.2
2013 Oct 7.7 5.6 9.2
2013 Nov 4.0 1.3 6.7
2013 Dec 2.7 2.3 3.1
2014 Jan 2.2 1.8 2.5
2014 Feb 1.7 1.5 2.0
2014 Mar 1.7 0.5 3.2
2014 Apr 2.1 1.7 2.8
2014 May 6.5 2.3 14.4
2014 Jun 14.7 8.1 19.2
2014 Jul 18.2 10.3 22.9
2014 Aug 19.4 15.7 23.3
2014 Sep 13.7 12.3 16.5
2014 Oct 9.7 7.0 13.0
2014 Nov 4.3 2.5 7.4
2014 Dec 2.7 2.3 3.0
2015 Jan 2.2 1.9 2.4
2015 Feb 2.1 1.9 2.4
2015 Mar 2.9 2.1 3.7
2015 Apr 4.4 2.5 6.4
2015 May 12.1 5.3 17.5
2015 Jun 17.3 13.1 22.3
2015 Jul 20.2 17.2 24.4
2015 Aug 18.2 14.8 20.8
2015 Sep 12.8 10.6 15.8
2015 Oct 9.4 6.8 13.4
2015 Nov 4.2 2.1 7.4
2015 Dec 2.2 1.9 2.6
2016 Jan 2.0 1.7 2.4
2016 Feb 2.0 1.3 2.2
2016 Mar 1.8 1.5 2.2
2016 Apr 3.5 1.3 9.7
2016 May 11.8 6.4 14.2
2016 Jun 14.2 11.4 18.2
2016 Jul 16.7 13.3 20.6
2016 Aug 18.9 16.7 22.1
2016 Sep 14.5 11.4 17.8
2016 Oct 8.4 6.0 12.9
2016 Nov 6.1 5.6 6.5
2016 Dec 1.6 1.5 1.6
2017 Jan 0.0 0.0 0.0
2017 Feb 1.5 1.4 1.6
2017 Mar 1.5 1.3 2.0
2017 Apr 1.9 1.4 2.6
2017 May 6.8 2.1 16.5
2017 Jun 14.5 8.8 19.1
2017 Aug 18.9 0.0 22.8
2017 Sep 14.9 10.8 20.6
2017 Oct 7.4 4.3 12.1
2017 Nov 2.6 1.4 5.2
2017 Dec 1.0 0.4 1.5
2018 Jan 0.4 0.2 1.2
2018 Feb 1.0 0.5 1.1
2018 Mar 1.0 0.7 1.5
2018 Apr 1.1 1.0 3.2
2018 May 8.0 1.2 18.0
2018 Jun 14.4 10.5 18.2
2018 Jul 17.6 12.8 23.1
2018 Aug 18.6 14.0 22.6
2018 Sep 13.0 10.4 16.0
2018 Oct 7.6 5.3 10.8
2018 Nov 3.9 2.3 6.3
2018 Dec 2.9 2.5 3.2
2019 Jan 2.3 1.9 2.7
2019 Feb 1.8 1.7 2.0
2019 Mar 2.0 1.9 2.7
2019 Apr 3.7 2.4 6.1
2019 May 11.1 4.6 17.4
2019 Jun 15.3 13.4 20.0
2019 Jul 16.7 15.1 18.0
2019 Aug 19.0 17.3 20.8
2019 Sep 11.2 9.0 18.5
2019 Oct 6.7 3.3 9.9
2019 Nov 3.4 2.0 4.8
2019 Dec 2.3 1.9 2.7
2020 Jan 1.9 1.8 2.1
2020 Feb 1.8 1.7 1.9
2020 Mar 1.8 1.7 1.9
2020 Apr 1.8 1.4 2.9
2020 May 6.5 2.3 14.6
2020 Jun 13.5 9.4 19.5
2020 Jul 16.4 12.9 21.3
2020 Aug 18.4 15.9 21.6
2020 Sep 15.2 10.9 19.7
2020 Oct 8.6 3.5 14.0
2020 Nov 2.9 1.7 4.9
2020 Dec 1.7 1.4 1.9
2021 Jan 1.3 1.2 1.5
2021 Feb 1.2 1.0 1.4
2021 Mar 1.3 0.8 1.5
2021 Apr 1.9 0.8 4.1
2021 May 8.4 3.7 13.9
2021 Jun 15.1 11.3 22.9
2021 Jul 21.2 16.3 25.1
2021 Aug 17.7 14.5 23.3
2021 Sep 13.2 10.4 16.2
2021 Oct 7.8 3.7 11.3
2021 Nov 3.4 2.0 5.4
2021 Dec 1.5 1.0 2.5
2022 Jan 1.1 0.9 1.2
2022 Feb 0.9 0.7 1.1
2022 Mar 0.9 0.4 1.7
2022 Apr 1.5 0.7 3.4
2022 May 5.0 2.7 10.8
2022 Jun 13.0 8.3 18.7
2022 Jul 19.2 15.6 23.8
2022 Aug 20.0 16.6 22.5
2022 Sep 15.0 11.5 19.7
2022 Oct 10.5 6.2 14.7
2022 Nov 2.9 1.3 6.5
2022 Dec 1.8 1.4 2.1
2023 Jan 1.6 1.2 1.8
2023 Feb 1.5 1.4 1.6
2023 Mar 1.4 1.2 1.7
2023 Apr 1.5 0.6 3.4
2023 May 8.8 2.8 15.8
2023 Jun 15.7 10.2 19.4
2023 Jul 18.9 11.9 21.9
2023 Aug 18.7 15.5 23.1
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
2012 14.2 4.9 23.1 4.5 6.1 Nov 7 Jul 14 3,528
2013 11.2 1.3 21.2 6.1 5.2 Nov 20 Aug 10 5,162
2014 8.1 0.5 23.3 6.7 8.7 Mar 22 Aug 5 8,760
2015 9.1 1.9 24.4 6.8 5.5 Jan 29 Jul 5 8,760
2016 9.0 1.3 22.1 6.5 4.1 Feb 3 Aug 16 7,058
2017 7.2 0.0 22.8 6.6 21.5 Jan 12 Aug 6 6,441
2018 7.5 0.2 23.1 6.8 8.4 Jan 19 Jul 28 8,760
2019 6.6 1.7 20.8 5.6 5.3 Feb 5 Aug 9 7,304
2020 7.6 1.4 21.6 6.5 5.9 Apr 11 Aug 1 8,784
2021 7.9 0.8 25.1 7.2 7.2 Mar 29 Jul 2 8,760
2022 7.7 0.4 23.8 7.3 4.3 Mar 19 Jul 30 8,760
2023 8.5 0.6 23.1 7.8 6.8 Apr 5 Aug 15 5,759
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
2012 20.1 21.0 18.9 85 34 20.0 3,528
2013 19.8 20.7 18.1 86 38 19.4 5,162
2014 20.6 22.0 19.4 92 40 20.0 8,760
2015 22.5 23.7 18.2 107 52 20.0 8,760
2016 20.2 21.3 18.9 80 29 19.1 7,058
2017 21.2 22.4 18.8 61 18 18.6 6,441
2018 21.1 22.2 18.6 84 35 20.2 8,760
2019 19.3 19.9 19.0 59 11 17.8 7,304
2020 19.9 21.1 18.4 94 28 18.6 8,784
2021 22.7 24.6 17.7 85 50 21.0 8,760
2022 22.1 23.4 20.0 86 50 20.7 8,760
2023 20.0 21.1 18.7 89 46 19.9 5,759
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.