Whitehorse Weather in September
Average highs run from 11°C on September 1 to 4°C on September 30, and lows from 2°C to -3°C. Normal precipitation for the month is 63 mm over about 15 wet days.
September day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
September at a glance
- Average high
- 8°C
- Average low
- 0°C
- Precipitation
- 63 mm
- Reanalysis high
- 19°CSep 5, 2017
- Reanalysis low
- -10°CSep 24, 1992
- Daylight
- 14 h 11 min to 11 h 29 min
- Cloud cover
- 72%
- Humidity
- 85%
- Dew point
- 1°C
- Wind
- 9.7 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 11°C | 2°C | 17°C 1993 | -4°C 2015 | 54% |
| Sep 2 | 10°C | 2°C | 15°C 2013 | -4°C 2000 | 53% |
| Sep 3 | 10°C | 2°C | 15°C 1993 | -2°C 2000 | 52% |
| Sep 4 | 10°C | 1°C | 15°C 1993 | -2°C 1992 | 52% |
| Sep 5 | 10°C | 1°C | 19°C 2017 | -3°C 1996 | 51% |
| Sep 6 | 10°C | 1°C | 17°C 2017 | -4°C 1996 | 50% |
| Sep 7 | 10°C | 1°C | 17°C 2019 | -4°C 2004 | 49% |
| Sep 8 | 9°C | 1°C | 16°C 2019 | -5°C 2014 | 47% |
| Sep 9 | 9°C | 1°C | 16°C 2019 | -4°C 2014 | 46% |
| Sep 10 | 9°C | 1°C | 14°C 2019 | -4°C 2012 | 47% |
| Sep 11 | 9°C | 0°C | 14°C 2013 | -6°C 1992 | 48% |
| Sep 12 | 9°C | 0°C | 15°C 2007 | -6°C 1992 | 48% |
| Sep 13 | 8°C | 0°C | 14°C 2007 | -7°C 1992 | 49% |
| Sep 14 | 8°C | 0°C | 14°C 2014 | -4°C 1992 | 48% |
| Sep 15 | 8°C | 0°C | 14°C 1993 | -7°C 2003 | 48% |
| Sep 16 | 8°C | 0°C | 13°C 2020 | -9°C 1992 | 48% |
| Sep 17 | 8°C | -1°C | 13°C 2010 | -9°C 1992 | 48% |
| Sep 18 | 7°C | -1°C | 14°C 1998 | -6°C 2003 | 48% |
| Sep 19 | 7°C | -1°C | 13°C 1995 | -9°C 2003 | 48% |
| Sep 20 | 7°C | -1°C | 15°C 2012 | -6°C 1992 | 48% |
| Sep 21 | 7°C | -1°C | 17°C 2012 | -6°C 1992 | 48% |
| Sep 22 | 6°C | -1°C | 15°C 1995 | -7°C 1992 | 48% |
| Sep 23 | 6°C | -1°C | 17°C 1995 | -10°C 1992 | 49% |
| Sep 24 | 6°C | -2°C | 17°C 1995 | -10°C 1992 | 49% |
| Sep 25 | 6°C | -2°C | 14°C 1995 | -7°C 1992 | 48% |
| Sep 26 | 5°C | -2°C | 11°C 1995 | -7°C 1992 | 47% |
| Sep 27 | 5°C | -2°C | 9°C 2006 | -7°C 1992 | 48% |
| Sep 28 | 5°C | -2°C | 10°C 1995 | -7°C 2010 | 49% |
| Sep 29 | 5°C | -2°C | 10°C 2003 | -7°C 2000 | 49% |
| Sep 30 | 4°C | -3°C | 10°C 2003 | -8°C 2000 | 49% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-7).
- September 1
- sunrise 6:54 AM, sunset 9:05 PM
- September 30
- sunrise 8:05 AM, sunset 7:34 PM
Other months
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.