Weather on October 20 in Ottawa

Historical weather data for October 20 in Ottawa, Canada

Avg High13°C (55°F)
Avg Low3°C (38°F)
Warmest202516°C
Coldest1972-1°C

Based on 54 years of data from OTTAWA CDA

About This Date

October 20th in Ottawa, Canada typically brings cool fall weather, with average highs around 13°C and lows near 3°C. Over 54 years of records, the warmest October 20th was in 2025 (16°C average), while the coldest was 1972 (-1°C) — a 30°F range across recorded history. Precipitation has occurred on 56% of recorded October 20th dates, with snow falling 4% of the time. The last decade has been 5.2°F warmer on this date compared to 20-30 years ago.

The last decade has been 5.2°F warmer on this date compared to 20-30 years ago.

Planning for October 20th in Ottawa? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecip
202522°C (71°F)11°C (52°F)--
202319°C (67°F)10°C (50°F)0.94"
20227°C (45°F)-1°C (31°F)0"
202120°C (68°F)6°C (43°F)0.28"
20209°C (48°F)4°C (39°F)0.68"
201915°C (59°F)0°C (32°F)0"
201812°C (54°F)8°C (47°F)0"
201719°C (66°F)8°C (46°F)0"
201612°C (54°F)5°C (41°F)1.71"
201517°C (63°F)7°C (45°F)0"
20147°C (44°F)-2°C (29°F)0.63"
201313°C (55°F)5°C (41°F)0.06"
201216°C (60°F)11°C (51°F)0"
201114°C (57°F)8°C (47°F)2.9"
201015°C (59°F)0°C (32°F)0.58"
200917°C (62°F)7°C (44°F)0"
200813°C (55°F)3°C (38°F)1.34"
200718°C (64°F)11°C (52°F)0"
20067°C (44°F)3°C (38°F)1.17"
200510°C (50°F)2°C (35°F)0"
200412°C (54°F)0°C (32°F)0.4"
20038°C (46°F)-2°C (29°F)3.56"
20029°C (48°F)3°C (37°F)0.06"
200117°C (62°F)9°C (48°F)0.06"
200019°C (66°F)1°C (34°F)0"
199915°C (59°F)2°C (36°F)0.04"
199812°C (54°F)7°C (44°F)0"
199713°C (55°F)-1°C (31°F)0.04"
19969°C (48°F)7°C (44°F)2.64"
199523°C (73°F)6°C (42°F)0.6"
199418°C (65°F)11°C (52°F)0.42"
199313°C (55°F)2°C (36°F)2.42"
19923°C (38°F)-2°C (28°F)0.28"
19918°C (47°F)-2°C (28°F)0"
19908°C (47°F)-3°C (27°F)0"
19898°C (47°F)3°C (37°F)3.85"
19889°C (48°F)-4°C (24°F)0"
198712°C (53°F)8°C (47°F)0.56"
198614°C (58°F)2°C (36°F)0.3"
198512°C (54°F)3°C (37°F)0"
198417°C (62°F)7°C (44°F)0"
19838°C (46°F)-2°C (28°F)0"
198219°C (66°F)6°C (42°F)0.14"
198113°C (55°F)-2°C (29°F)0"
19806°C (43°F)2°C (36°F)0.06"
197921°C (69°F)9°C (48°F)1.96"
197811°C (52°F)-1°C (31°F)0"
197714°C (57°F)4°C (39°F)0"
19765°C (41°F)-1°C (31°F)2.82"
197513°C (55°F)7°C (44°F)0.13"
19743°C (37°F)-3°C (27°F)0"
19738°C (47°F)5°C (41°F)0.03"
19726°C (43°F)-7°C (19°F)0"
197121°C (69°F)3°C (37°F)0"

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