Weather on October 31 in Ottawa

Historical weather data for October 31 in Ottawa, Canada

Avg High11°C (51°F)
Avg Low1°C (34°F)
Warmest202416°C
Coldest1988-1°C

Based on 55 years of data from OTTAWA CDA

About This Date

October 31st in Ottawa, Canada typically brings cool fall weather, with average highs around 11°C and lows near 1°C. Over 55 years of records, the warmest October 31st was in 2024 (16°C average), while the coldest was 1988 (-1°C) — a 30°F range across recorded history. Precipitation has occurred on 38% of recorded October 31st dates, with snow falling 4% of the time (heaviest snowfall: 1.5"). The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.

The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.

Planning for October 31st in Ottawa? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecip
20258°C (46°F)3°C (38°F)--
202423°C (74°F)8°C (46°F)0"
20234°C (39°F)-3°C (27°F)0"
202214°C (57°F)2°C (36°F)0.08"
202112°C (53°F)8°C (46°F)0.47"
20206°C (43°F)-5°C (23°F)0"
20199°C (49°F)7°C (44°F)3.81"
20185°C (41°F)-1°C (30°F)0.96"
201710°C (50°F)5°C (41°F)0"
20164°C (40°F)-3°C (27°F)0"
20157°C (44°F)-4°C (24°F)0"
20147°C (44°F)-1°C (30°F)0"
201315°C (59°F)-1°C (31°F)1.27"
201213°C (55°F)8°C (47°F)0.44"
201111°C (52°F)-2°C (29°F)0"
20102°C (35°F)1°C (33°F)0"
200914°C (58°F)6°C (42°F)0.79"
200816°C (60°F)-3°C (27°F)0"
200717°C (62°F)1°C (34°F)--
20067°C (44°F)0°C (32°F)0"
200513°C (56°F)6°C (42°F)0"
200414°C (57°F)7°C (44°F)0.22"
200321°C (69°F)4°C (40°F)0"
20024°C (40°F)-4°C (24°F)0"
20013°C (37°F)-4°C (24°F)0.91"
200011°C (51°F)-2°C (29°F)0"
199919°C (67°F)7°C (44°F)0.02"
199812°C (54°F)2°C (35°F)0"
199716°C (60°F)1°C (34°F)0.06"
19967°C (44°F)2°C (35°F)0"
19952°C (36°F)-3°C (27°F)0.02"
199412°C (54°F)2°C (35°F)0.38"
19934°C (40°F)1°C (34°F)0.37"
19924°C (40°F)-6°C (22°F)0"
199111°C (51°F)1°C (33°F)0"
199012°C (53°F)-3°C (26°F)0"
198922°C (71°F)7°C (44°F)0.94"
19886°C (42°F)-7°C (19°F)0"
19878°C (47°F)3°C (38°F)0"
19868°C (47°F)-6°C (22°F)0"
198511°C (51°F)-2°C (29°F)0"
19846°C (43°F)1°C (33°F)0"
198313°C (55°F)-2°C (28°F)0"
198217°C (63°F)8°C (46°F)0.1"
198111°C (52°F)-1°C (31°F)0"
198011°C (52°F)3°C (37°F)0.04"
197912°C (53°F)-1°C (30°F)0"
197816°C (60°F)4°C (39°F)0"
197713°C (55°F)-1°C (31°F)0"
19766°C (42°F)2°C (35°F)0.84"
19755°C (41°F)-5°C (23°F)0.43"
197419°C (67°F)10°C (50°F)0.23"
197311°C (52°F)7°C (45°F)0.81"
19723°C (38°F)-3°C (26°F)0"
197118°C (65°F)1°C (34°F)0"

Popular Dates in Ottawa

October 31 in Other Canada Cities

Browse by Country

Explore More Dates

See historical weather for other dates in Ottawa

Back to Ottawa