Ottawa Airport (YOW):
NEXT MONTH
Times in Eastern Daylight Time (EDT = GMT-4)
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STATISTICS from Ottawa Airport (YOW) - September, 2026
MONTHLY SUMMARY: MEANS AND TOTALS: |
Reading |
Mean |
Normal |
RecHi |
Year |
RecLo |
Year |
|
| High Temperature |
|
|
0.0 |
°C |
24.1 |
°C |
2017 |
20.0 |
°C |
2024 |
|
| Low Temperature |
|
|
0.0 |
°C |
11.3 |
°C |
2017 |
7.4 |
°C |
2020 |
|
| Mean Temperature |
|
|
0.0 |
°C |
17.7 |
°C |
2017 |
14.0 |
°C |
2020 |
|
| Dew Point |
|
|
|
|
13.3 |
°C |
2017 |
9.4 |
°C |
2025 |
|
| Relative Humidity |
|
|
|
|
78 |
% |
2022 |
69 |
% |
2025 |
|
| Barometric Pressure |
|
|
|
|
1021.5 |
mb |
2018 |
1013.8 |
mb |
2021 |
|
| Visibility |
|
|
|
|
21 |
km |
2025 |
21 |
km |
2025 |
|
| Winds |
|
|
|
|
11 |
km/h |
2025 |
6 |
km/h |
2021 |
|
| - from |
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|
S (188) |
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SW (219) |
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Sep Precipitation |
Total |
Normal |
RecHi |
Year |
RecLo |
Year |
|
| Snowfall |
|
|
0.0 |
cm |
0.0 |
cm |
2017 |
0.0 |
cm |
2017 |
|
| - Water Equiv. |
|
|
0.0 |
mm |
0.0 |
mm |
2017 |
0.0 |
mm |
2017 |
|
| Rain |
|
|
0.0 |
mm |
110.2 |
mm |
2019 |
0.0 |
mm |
2018 |
|
| Total Precipitation |
|
|
0.0 |
mm |
110.2 |
mm |
2019 |
0.0 |
mm |
2018 |
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MONTHLY SUMMARY: SINGLE-DAY EXTREMES AND RECORDS: |
Reading |
Max |
DD |
Min |
DD |
RecHi |
YY-DD |
RecLo |
YY-DD |
|
High Temperature |
|
|
|
|
|
|
33.2 |
°C |
2018-05 |
6.3 |
°C |
2017-02 |
|
Low Temp |
|
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|
|
28.0 |
°C |
2017-16 |
-3.0 |
°C |
2020-21 |
|
Humidex |
|
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|
41 |
|
2017-24 |
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Wind Chill |
|
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|
-2 |
|
2020-19 |
|
Dew Point |
|
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|
|
|
|
23.6 |
°C |
2018-03 |
-3.6 |
°C |
2025-20 |
|
Relative Humidity |
|
|
|
|
|
|
100 |
% |
2017-04 |
0 |
% |
n/a-n/a |
|
Barometric Pressure |
|
|
|
|
|
|
1038.0 |
mb |
2020-21 |
0.0 |
mb |
n/a-n/a |
|
Winds |
|
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|
41 |
km/h |
2025-05 |
|
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- from |
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SSW (203) |
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Wind Gust |
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46 |
km/h |
2017-04 |
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Daily Mean |
Max |
DD |
Min |
DD |
RecHi |
YY-DD |
RecLo |
YY-DD |
|
| Temperature |
|
|
|
|
|
|
28.0 |
°C |
2017-16 |
5.6 |
°C |
2017-02 |
|
| Dew Point |
|
|
|
|
|
|
22.0 |
°C |
2018-03 |
-0.3 |
°C |
2025-20 |
|
| Relative Humidity |
|
|
|
|
|
|
100 |
% |
2017-18 |
48 |
% |
2017-17 |
|
| Barometric Pressure |
|
|
|
|
|
|
1033.5 |
mb |
2020-20 |
1000.0 |
mb |
2017-05 |
|
| Visibility |
|
|
|
|
|
|
24 |
km |
2025-01 |
12 |
km |
2025-05 |
|
| Winds |
|
|
|
|
|
|
19 |
km/h |
2024-08 |
0 |
km/h |
2017-15 |
|
| - from |
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NNW (339) |
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N (000) |
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Daily Total |
Max |
DD |
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RecHi |
YY-DD |
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Snowfall |
|
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|
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|
0.0 |
cm |
2017-01 |
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- Water Equivalent |
|
|
|
|
|
|
0.0 |
mm |
2017-01 |
|
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Rainfall |
|
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|
|
28.0 |
mm |
2017-16 |
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Total Precipitation |
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|
28.0 |
mm |
2017-16 |
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