Ottawa Airport (YOW):

LAST MONTH

Times in Eastern Standard Time (EST = GMT-5)
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   STATISTICS from Ottawa Airport (YOW) - November, 2025
   MONTHLY SUMMARY: MEANS AND TOTALS:

   Reading

Mean   

Normal   

RecHi   

YY

RecLo   

YY

  
   High Temp +3.3 °C 0.0 °C 15.6 °C 2017 +2.7 °C 2018  
   Low Temp -3.0 °C 0.0 °C 6.7 °C 2017 -6.9 °C 2019  
   Mean Temp +0.2 °C 0.0 °C 11.2 °C 2017 -1.9 °C 2019  
   Dew Point -2.8 °C     8.3 °C 2017 -5.3 °C 2019  
   Relative Humidity 80 %     88 % 2017 72 % 2022  
   Barometric Pressure 1011.5  mb     1024.5  mb 2017 1011.5  mb 2025  
   Visibility 16  km     21  km 2024 16  km 2025  
   Winds 16  km/h     16  km/h 2024 3  km/h 2017  
   - from S (188)       W (279)     SSE (153)      
 

   Nov Precipitation

   Total   

Normal   

RecHi   

YY

RecLo   

YY

  
   Snowfall 32.5  cm 0.0  cm 32.5  cm 2025 0.0  cm 2025  
   - Water Equivalent 23.8  mm 0.0  mm 23.8  mm 2025 0.0  mm 2017  
   Rain 41.8  mm 0.0  mm 123.0  mm 2022 0.0  mm 2017  
   Total Precipitation 65.6  mm 0.0  mm 123.0  mm 2022 0.0  mm 2017  
 

   MONTHLY SUMMARY: SINGLE-DAY EXTREMES AND RECORDS:

   Reading

Max   

DD

Min   

DD

RecHi   

YY-DD

RecLo   

YY-DD

  

   High Temp

 11.9 °C 04 -3.4 °C 20 24.7 °C 2020-10 -9.6 °C 2018-22  

   Low Temp

 +2.9 °C 04 -7.8 °C 29 16.0 °C 2022-06 -20.7 °C 2018-23  

   Humidex

 n/a   30       28   2022-05        

   Wind Chill

       -12   29       -26   2018-22  

   Dew Point

 8.5 °C 08 -10.4 °C 29 17.3 °C 2024-01 -23.3 °C 2018-23  

   Relative Humidity

 99 % 07 38 % 04 100 % 2017-19 0 % n/a-n/a  

   Barometric Pressure

 1032.0  mb 29 986.0  mb 16 1041.0  mb 2022-08 0.0  mb n/a-n/a  

   Winds

 41  km/h 16       62  km/h 2024-08        

   - from

 W (270)           NNW (338)            

   Wind Gust

 n/a  km/h n/a       58  km/h 2017-29        
 

   Daily Mean

Max   

DD

Min   

DD

RecHi   

YY-DD

RecLo   

YY-DD

  
   Temperature 7.4 °C 04 -4.6 °C 20 20.3 °C 2022-05 -13.0 °C 2018-22  
   Dew Point +2.8 °C 03 -9.3 °C 29 13.8 °C 2017-06 -18.7 °C 2018-22  
   Relative Humidity 94 % 20 60 % 04 98 % 2017-02 44 % 2024-15  
   Barometric Pressure 1025.0  mb 29 992.0  mb 16 1036.0  mb 2017-11 992.0  mb 2025-16  
   Visibility 24  km 02 8  km 20 24  km 2024-02 8  km 2025-20  
   Winds 31  km/h 17 6  km/h 20 31  km/h 2018-07 1  km/h 2017-12  
   - from W (263)     S (185)     W (268)     WNW (288)      
 

   Daily Total

Max   

DD

      

RecHi   

YY-DD

        

   Snowfall

 5.4  cm 30       5.4  cm 2025-30        

   - Water Equiv.

 4.0  mm 30       4.0  mm 2025-30        

   Rainfall

 0.0  mm 01       14.0  mm 2022-30        
   Total Precipitation 4.0  mm 30       14.0  mm 2022-30        
 

Daily Temperatures Last Month:
 

Precipitation Last Month:
 

Last Month:
   Day    High    Low    Mean    MxHx    MnWC    MeRH    MeDP    MeBP    Snow    (RnEqu.)    Rain    Precip
   1    5.9°    +2.6°    +4.3°    n/a    n/a    70%    -0.2°    1009.5 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   2    7.5°    +1.4°    +4.5°    n/a    n/a    64%    -1.8°    1022.5 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   3    10.8°    +1.7°    6.3°    n/a    n/a    80%    +2.8°    1012.5 mb    0.0 cm    (0.0 mm)    3.4 mm    3.4 mm
   4    12.5°    +1.6°    7.1°    n/a    n/a    60%    -1.0°    1012.0 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   5    5.1°    0.0°    +2.6°    n/a    n/a    81%    +0.2°    1010.0 mb    0.0 cm    (0.0 mm)    7.7 mm    7.7 mm
   6    +3.8°    -4.3°    -0.3°    n/a    -7    74%    -2.4°    1013.0 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   7    9.3°    -4.9°    +2.2°    n/a    -7    86%    +1.2°    1006.5 mb    0.0 cm    (0.0 mm)    7.0 mm    7.0 mm
   8    9.3°    -3.8°    +2.8°    n/a    -7    80%    +0.4°    1005.5 mb    0.0 cm    (0.0 mm)    0.5 mm    0.5 mm
   9    -1.0°    -4.2°    -2.6°    n/a    -9    82%    -5.1°    1014.5 mb    11.7 cm    (9.6 mm)    0.0 mm    9.6 mm
   10    -1.9°    -3.4°    -2.7°    n/a    -9    86%    -4.8°    1007.5 mb    0.3 cm    (0.2 mm)    0.0 mm    0.2 mm
   11    -0.1°    -3.7°    -1.9°    n/a    -10    70%    -6.6°    1003.5 mb    0.3 cm    (0.2 mm)    0.0 mm    0.2 mm
   12    +1.7°    -1.6°    +0.1°    n/a    -8    88%    -2.6°    1002.0 mb    3.4 cm    (2.0 mm)    0.0 mm    2.0 mm
   13    +4.5°    -0.4°    +2.1°    n/a    n/a    80%    -0.9°    1010.0 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   14    +3.0°    -4.9°    -1.0°    n/a    -9    86%    -2.5°    1016.0 mb    3.4 cm    (2.2 mm)    0.0 mm    2.2 mm
   15    -0.2°    -8.4°    -4.3°    n/a    -10    88%    -4.4°    1002.0 mb    0.0 cm    (0.0 mm)    10.0 mm    10.0 mm
   16    +1.9°    -2.4°    -0.3°    n/a    -9    84%    -2.7°    992.0 mb    1.8 cm    (1.4 mm)    0.0 mm    1.4 mm
   17    -0.7°    -2.5°    -1.6°    n/a    -10    78%    -5.4°    1005.5 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   18    -0.2°    -6.6°    -3.4°    n/a    -10    84%    -5.2°    1017.5 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   19    +0.4°    -6.5°    -3.1°    n/a    -10    82%    -6.0°    1023.5 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   20    -3.3°    -6.1°    -4.7°    n/a    -8    94%    -5.4°    1022.5 mb    0.2 cm    (0.0 mm)    0.0 mm    0.0 mm
   21    7.5°    -3.9°    +1.8°    n/a    -8    88%    +0.2°    1013.5 mb    0.8 cm    (0.8 mm)    2.8 mm    3.6 mm
   22    +3.8°    -6.9°    -1.6°    n/a    -7    79%    -4.0°    1013.5 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   23    +0.2°    -6.6°    -3.2°    n/a    -9    93%    -4.2°    1013.0 mb    4.2 cm    (3.2 mm)    0.0 mm    3.2 mm
   24    +3.2°    -1.3°    +1.0°    n/a    -5    85%    -1.2°    1018.5 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   25    6.4°    +0.8°    +3.6°    n/a    n/a    84%    +0.6°    1015.0 mb    0.0 cm    (0.0 mm)    1.7 mm    1.7 mm
   26    5.5°    +1.0°    +3.3°    n/a    n/a    84%    +0.8°    1006.0 mb    0.0 cm    (0.0 mm)    8.7 mm    8.7 mm
   27    +3.7°    -1.9°    +0.9°    n/a    -5    70%    -3.2°    1002.5 mb    0.4 cm    (0.0 mm)    0.0 mm    0.0 mm
   28    -1.2°    -3.6°    -2.4°    n/a    -11    76%    -5.8°    1009.5 mb    0.6 cm    (0.2 mm)    0.0 mm    0.2 mm
   29    -0.8°    -7.8°    -4.3°    n/a    -12    67%    -9.3°    1025.0 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   30    +1.7°    -4.4°    -1.4°    n/a    -10    84%    -4.2°    1019.5 mb    5.4 cm    (4.0 mm)    0.0 mm    4.0 mm
   Avg:    +3.3°    -3.0°    +0.2°     n/a     -12    80%    -2.8°    1011.5 mb    32.5 cm    (23.8 mm)    41.8 mm    65.6 mm