Ottawa Airport (YOW):

LAST MONTH

Times in Eastern Standard Time (EST = GMT-5)
<-CTO Ottawa Airport <-CTO Home <-Units of Measure <-Browse logs, etc. <-Diagnostic Page
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   STATISTICS from Ottawa Airport (YOW) - October, 2026
   MONTHLY SUMMARY: MEANS AND TOTALS:

   Reading

Mean   

Normal   

RecHi   

YY

RecLo   

YY

  
   High Temp 14.1 °C 0.0 °C 19.6 °C 2017 10.8 °C 2018  
   Low Temp +2.2 °C 0.0 °C 7.1 °C 2017 +1.0 °C 2022  
   Mean Temp 8.2 °C 0.0 °C 13.4 °C 2017 7.0 °C 2018  
   Dew Point +3.4 °C     8.8 °C 2017 +2.8 °C 2018  
   Relative Humidity 71 %     81 % 2021 69 % 2022  
   Barometric Pressure 1021.5  mb     1021.5  mb 2026 1014.3  mb 2021  
   Visibility 22  km     22  km 2025 21  km 2024  
   Winds 13  km/h     15  km/h 2024 7  km/h 2022  
   - from ENE (056)       NE (049)     WSW (241)      
 

   Oct Precipitation

   Total   

Normal   

RecHi   

YY

RecLo   

YY

  
   Snowfall 0.0  cm 0.0  cm 0.0  cm 2017 0.0  cm 2017  
   - Water Equivalent 0.0  mm 0.0  mm 0.0  mm 2017 0.0  mm 2017  
   Rain 64.6  mm 0.0  mm 175.1  mm 2019 0.0  mm 2018  
   Total Precipitation 64.6  mm 0.0  mm 175.1  mm 2019 0.0  mm 2018  
 

   MONTHLY SUMMARY: SINGLE-DAY EXTREMES AND RECORDS:

   Reading

Max   

DD

Min   

DD

RecHi   

YY-DD

RecLo   

YY-DD

  

   High Temp

 19.5 °C 11 6.0 °C 17 29.7 °C 2025-05 +0.2 °C 2017-17  

   Low Temp

 14.8 °C 01 -2.2 °C 28 21.5 °C 2017-08 -6.9 °C 2020-31  

   Humidex

 n/a   31       36   2018-09        

   Wind Chill

       -5   28       -9   2020-30  

   Dew Point

 17.7 °C 01 -6.9 °C 17 20.4 °C 2018-09 -16.0 °C 2024-28  

   Relative Humidity

 99 % 01 28 % 24 100 % 2017-03 0 % n/a-n/a  

   Barometric Pressure

 1036.0  mb 24 1000.0  mb 16 1038.0  mb 2022-28 0.0  mb n/a-n/a  

   Winds

 41  km/h 05       42  km/h 2025-31        

   - from

 WNW (293)           W (270)            

   Wind Gust

 n/a  km/h n/a       66  km/h 2017-08        
 

   Daily Mean

Max   

DD

Min   

DD

RecHi   

YY-DD

RecLo   

YY-DD

  
   Temperature 16.5 °C 01 +2.6 °C 28 22.8 °C 2017-08 -2.0 °C 2020-30  
   Dew Point 15.9 °C 01 -4.2 °C 27 18.0 °C 2017-08 -11.2 °C 2024-28  
   Relative Humidity 94 % 01 56 % 23 100 % 2017-07 42 % 2024-28  
   Barometric Pressure 1034.5  mb 24 1007.5  mb 08 1035.5  mb 2022-28 979.0  mb 2017-30  
   Visibility 32  km 11 13  km 16 32  km 2026-11 10  km 2025-31  
   Winds 23  km/h 05 5  km/h 24 31  km/h 2017-30 0  km/h 2017-11  
   - from SE (126)     WNW (293)     SE (144)     E (079)      
 

   Daily Total

Max   

DD

      

RecHi   

YY-DD

        

   Snowfall

 0.0  cm 01       0.0  cm 2017-01        

   - Water Equiv.

 0.0  mm 01       0.0  mm 2017-01        

   Rainfall

 0.0  mm 01       57.2  mm 2019-31        
   Total Precipitation 0.0  mm 01       57.2  mm 2019-31        
 

Daily Temperatures Last Month:
 

Precipitation Last Month:
 

Last Month:
   Day    High    Low    Mean    MxHx    MnWC    MeRH    MeDP    MeBP    Snow    (RnEqu.)    Rain    Precip
   1    18.3°    14.7°    16.5°    n/a    n/a    94%    15.9°    1012.0 mb    0.0 cm    (0.0 mm)    5.1 mm    5.1 mm
   2    19.2°    7.3°    13.3°    n/a    n/a    78%    11.0°    1015.0 mb    0.0 cm    (0.0 mm)    6.1 mm    6.1 mm
   3    16.5°    +2.5°    9.5°    n/a    n/a    70%    +4.4°    1025.5 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   4    17.3°    +2.1°    9.7°    n/a    n/a    78%    7.2°    1019.5 mb    0.0 cm    (0.0 mm)    0.7 mm    0.7 mm
   5    12.8°    +2.7°    7.8°    n/a    n/a    70%    6.2°    1015.0 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   6    12.7°    +2.5°    7.6°    n/a    n/a    58%    -0.6°    1018.5 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   7    17.1°    5.9°    11.5°    n/a    n/a    75%    7.0°    1009.0 mb    0.0 cm    (0.0 mm)    1.3 mm    1.3 mm
   8    17.7°    5.8°    11.8°    n/a    n/a    70%    7.2°    1007.5 mb    0.0 cm    (0.0 mm)    1.6 mm    1.6 mm
   9    14.5°    +3.0°    8.8°    n/a    n/a    72%    5.1°    1019.5 mb    0.0 cm    (0.0 mm)    2.3 mm    2.3 mm
   10    13.6°    -0.9°    6.4°    n/a    -3    70%    +2.0°    1030.5 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   11    19.9°    +3.6°    11.8°    n/a    n/a    71%    5.9°    1020.5 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   12    15.9°    7.3°    11.6°    n/a    n/a    90%    10.6°    1012.0 mb    0.0 cm    (0.0 mm)    2.9 mm    2.9 mm
   13    7.5°    +5.0°    6.3°    n/a    n/a    94%    5.6°    1010.5 mb    0.0 cm    (0.0 mm)    24.2 mm    24.2 mm
   14    12.1°    6.4°    9.3°    n/a    n/a    86%    6.4°    1014.5 mb    0.0 cm    (0.0 mm)    0.3 mm    0.3 mm
   15    12.8°    +2.9°    7.9°    n/a    n/a    62%    +2.4°    1021.5 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   16    8.5°    +4.0°    6.3°    n/a    n/a    82%    +4.6°    1007.5 mb    0.0 cm    (0.0 mm)    17.4 mm    17.4 mm
   17    6.4°    +0.5°    +3.5°    n/a    n/a    60%    -2.6°    1022.5 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   18    15.7°    +0.2°    8.0°    n/a    n/a    64%    +1.4°    1030.0 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   19    19.1°    +3.0°    11.1°    n/a    n/a    66%    +4.6°    1027.5 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   20    16.4°    +3.1°    9.8°    n/a    n/a    61%    +1.8°    1030.0 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   21    14.8°    0.0°    7.4°    n/a    n/a    62%    +0.2°    1026.0 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   22    15.7°    +0.2°    8.0°    n/a    n/a    70%    +2.2°    1024.0 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   23    11.9°    -0.6°    5.7°    n/a    n/a    56%    -1.9°    1030.5 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   24    14.2°    -1.6°    6.3°    n/a    -3    60%    -1.7°    1034.5 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   25    18.5°    -2.2°    8.2°    n/a    -1    65%    +1.8°    1030.0 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   26    12.6°    +0.6°    6.6°    n/a    n/a    72%    +3.2°    1025.0 mb    0.0 cm    (0.0 mm)    2.7 mm    2.7 mm
   27    7.3°    -2.6°    +2.4°    n/a    -4    60%    -4.2°    1031.0 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   28    8.3°    -3.0°    +2.7°    n/a    -5    74%    -2.3°    1028.0 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   29    19.7°    -1.3°    9.2°    n/a    -3    74%    +4.0°    1017.0 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   30    12.2°    -0.1°    6.1°    n/a    n/a    66%    +2.2°    1020.5 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   31    8.9°    -2.1°    +3.4°    n/a    -5    66%    -2.9°    1030.0 mb    0.0 cm    (0.0 mm)    0.0 mm    0.0 mm
   Avg:    14.1°    +2.2°    8.2°     n/a     -5    71%    +3.4°    1021.5 mb    0.0 cm    (0.0 mm)    64.6 mm    64.6 mm