Ottawa Airport (YOW):
BAROMETRIC PRESSURE
RELATIVE HUMIDITY
Times in Eastern Standard Time (EST = GMT-5)
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LIVE OBSERVATIONS at Ottawa Airport (YOW) - Wednesday, January 7, 2026 at 01:30 EST
TODAY: |
Wednesday |
Reading |
Time |
CTO |
RecHi |
YY |
RecLo |
YY |
|
Current Barometric Pressure: |
1004.0 |
mb |
|
1002.9 |
mb |
|
|
|
|
|
|
|
Maximum Today: |
1004.0 |
mb |
00:00 |
1003.6 |
mb |
1037.0 |
mb |
2019 |
|
|
|
|
Minimum: |
1004.0 |
mb |
00:00 |
1002.9 |
mb |
|
|
|
1006.0 |
mb |
2024 |
|
| Mean: |
1004.0 |
mb |
|
1003.2 |
mb |
1028.0 |
mb |
2019 |
1010.5 |
mb |
2024 |
|
| |
Current Relative Humidity: |
89 |
% |
|
92 |
% |
|
|
|
|
|
|
|
Maximum Today: |
89 |
% |
01:00 |
92 |
% |
95 |
% |
2016 |
|
|
|
|
Minimum: |
88 |
% |
00:00 |
92 |
% |
|
|
|
45 |
% |
2018 |
|
| Mean: |
88 |
% |
|
92 |
% |
90 |
% |
2024 |
64 |
% |
2019 |
|
| |
|
YESTERDAY: |
Tuesday |
Reading |
Time |
CTO |
RecHi |
YY |
RecLo |
YY |
|
Maximum Barometric Pressure: |
1017.0 |
mb |
03:00 |
1015.8 |
mb |
1032.0 |
mb |
2018 |
|
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|
|
Minimum: |
1005.0 |
mb |
23:00 |
1003.6 |
mb |
|
|
|
1000.0 |
mb |
2014 |
|
| Mean: |
1011.0 |
mb |
|
1009.7 |
mb |
1028.2 |
mb |
2016 |
1007.0 |
mb |
2022 |
|
| |
Maximum Relative Humidity: |
88 |
% |
21:00 |
92 |
% |
99 |
% |
2023 |
|
|
|
|
Minimum: |
80 |
% |
01:00 |
80 |
% |
|
|
|
47 |
% |
2016 |
|
| Mean: |
84 |
% |
|
86 |
% |
98 |
% |
2023 |
56 |
% |
2016 |
|
| |
|
TOMORROW: |
Thursday |
|
RecHi |
YY |
RecLo |
YY |
|
Barometric Pressure: |
|
1038.0 |
mb |
2014 |
1000.0 |
mb |
2019 |
|
| Daily Mean BP: |
|
1034.1 |
mb |
2014 |
1008.0 |
mb |
2019 |
|
| |
Relative Humidity: |
|
98 |
% |
2016 |
48 |
% |
2015 |
|
| Daily Mean BP: |
|
1034.1 |
% |
2014 |
1008.0 |
% |
2019 |
|
| |
|
THIS MONTH: |
Jan Means + Records |
Mean |
CTO |
RecHi |
YY |
RecLo |
YY |
|
| Monthly Mean BP: |
1012.2 |
mb |
1011.0 |
mb |
170199997.2 |
mb |
2017 |
-108179039.6 |
mb |
2015 |
|
| |
| Monthly Mean RH: |
74 |
% |
76 |
% |
1881171822 |
% |
2017 |
-1225562384 |
% |
2015 |
|
| |
|
Daily Extremes + Records |
Max |
DD |
Min |
DD |
RecHi |
YY-DD |
RecLo |
YY-DD |
|
Barometric Pressure: |
1024.0 |
mb |
04 |
998.0 |
mb |
01 |
1046.0 |
mb |
2018-15 |
0.0 |
mb |
2015-01 |
|
| Daily Mean BP: |
1020.0 |
mb |
04 |
1003.5 |
mb |
01 |
1041.0 |
mb |
2018-15 |
883.0 |
mb |
2015-01 |
|
| |
Relative Humidity: |
88 |
% |
06 |
54 |
% |
01 |
100 |
% |
2016-01 |
32 |
% |
2017-11 |
|
| Daily Mean RH: |
84 |
% |
06 |
70 |
% |
01 |
100 |
% |
2017-18 |
53 |
% |
2019-28 |
|
| |
|
LAST MONTH: |
Dec Means + Records |
Mean |
CTO |
RecHi |
YY |
RecLo |
YY |
|
| Mean Barometric Pressure: |
1013.6 |
mb |
1012.7 |
mb |
1019.9 |
mb |
2024 |
1010.8 |
mb |
2023 |
|
| |
| Mean Relative Humidity: |
75 |
% |
77 |
% |
84 |
% |
2024 |
75 |
% |
2017 |
|
| |
|
Daily Extremes + Records |
Max |
DD |
Min |
DD |
RecHi |
YY-DD |
RecLo |
YY-DD |
|
Barometric Pressure: |
1032.0 |
mb |
22 |
985.0 |
mb |
19 |
1050.0 |
mb |
2024-14 |
0.0 |
mb |
n/a-n/a |
|
| Daily Mean BP: |
1029.0 |
mb |
22 |
992.0 |
mb |
29 |
1047.0 |
mb |
2024-14 |
989.0 |
mb |
2022-24 |
|
| |
Relative Humidity: |
97 |
% |
29 |
40 |
% |
04 |
100 |
% |
2022-06 |
0 |
% |
n/a-n/a |
|
| Daily Mean RH: |
90 |
% |
10 |
62 |
% |
30 |
100 |
% |
2024-10 |
49 |
% |
2022-05 |
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| |
|
NEXT MONTH: |
February Monthly Records |
|
RecHi |
YY |
RecLo |
YY |
|
| Mean Barometric Pressure: |
|
169988485.1 |
mb |
2017 |
-107499066.0 |
mb |
2015 |
|
| |
| Mean Relative Humidity: |
|
1869762592 |
% |
2017 |
-1225804048 |
% |
2015 |
|
| |
|
February Daily Records |
|
RecHi |
YY-DD |
RecLo |
YY-DD |
|
Barometric Pressure: |
|
1045.0 |
mb |
2018-13 |
985.0 |
mb |
2020-07 |
|
| Daily Mean BP: |
|
1039.2 |
mb |
2015-28 |
989.7 |
mb |
2016-25 |
|
| |
Relative Humidity: |
|
100 |
% |
2014-01 |
32 |
% |
2021-26 |
|
| Daily Mean RH: |
|
100 |
% |
2018-20 |
48 |
% |
2024-29 |
|
| |
|
THIS YEAR: |
2026 Means + Records |
Mean |
CTO |
RecHi |
YY |
RecLo |
YY |
|
| Annual Mean BP: |
n/a |
mb |
n/a |
mb |
13545939.2 |
mb |
2013 |
-121942637.6 |
mb |
2013 |
|
| |
| Annual Mean RH: |
n/a |
% |
n/a |
% |
134532195 |
% |
2013 |
-1225007104 |
% |
2056 |
|
| |
|
Monthly Extremes + Records |
Max |
MM |
Min |
MM |
RecHi |
YY-MM |
RecLo |
YY-MM |
|
| Monthly Mean BP: |
n/a |
mb |
n/a |
n/a |
mb |
n/a |
170199997.2 |
mb |
2016-Sep |
-108179039.6 |
mb |
2015-Jan |
|
| |
| Monthly Mean RH: |
n/a |
% |
n/a |
n/a |
% |
n/a |
1881171822 |
% |
2016-Sep |
-1225804048 |
% |
2015-Feb |
|
| |
|
Daily Extremes + Records |
Max |
MM-DD |
Min |
MM-DD |
RecHi |
Date |
RecLo |
Date |
|
Barometric Pressure: |
1024.0 |
mb |
Jan-04 |
998.0 |
mb |
Jan-01 |
13554508.8 |
mb |
2014-01-31 |
-122673840.8 |
mb |
2014-01-31 |
|
| Daily Mean BP: |
1020.0 |
mb |
Jan-04 |
1003.5 |
mb |
Jan-01 |
13554518.4 |
mb |
2014-01-31 |
0.0 |
mb |
2014-01-31 |
|
| |
Relative Humidity: |
88 |
% |
Jan-06 |
54 |
% |
Jan-01 |
100 |
% |
2015-03-15 |
-1224780080 |
% |
2014-01-31 |
|
| Daily Mean RH: |
84 |
% |
Jan-06 |
70 |
% |
Jan-01 |
100 |
% |
2015-12-02 |
-1081677968 |
% |
2056-01-31 |
|
| |
|
LAST YEAR: |
2025 Means |
Mean |
CTO |
|
| Annual Mean BP: |
1015.2 |
mb |
1014.4 |
mb |
|
| |
| Annual Mean RH: |
72 |
% |
67 |
% |
|
|
Monthly Extremes |
Max |
MM |
Min |
MM |
|
| Monthly Mean BP: |
1019.3 |
mb |
Oct |
1010.6 |
mb |
Mar |
|
| |
| Monthly Mean RH: |
80 |
% |
Nov |
66 |
% |
Apr |
|
|
Daily Extremes |
Max |
MM-DD |
Min |
MM-DD |
|
Barometric Pressure: |
1037.0 |
mb |
Feb-01 |
985.0 |
mb |
Dec-19 |
|
| Daily Mean BP: |
1033.0 |
mb |
Oct-09 |
985.0 |
mb |
Oct-31 |
|
| |
Relative Humidity: |
100 |
% |
Jan-01 |
18 |
% |
Apr-17 |
|
| Daily Mean RH: |
100 |
% |
Jul-07 |
40 |
% |
May-11 |
|
| |
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