Weather on October 20 in Montreal

Historical weather data for October 20 in Montreal, Canada

Avg High12°C (54°F)
Avg Low6°C (42°F)
Warmest202518°C
Coldest19741°C

Based on 52 years of data from MONTREAL MCGILL

About This Date

October 20th in Montreal, Canada typically brings cool fall weather, with average highs around 12°C and lows near 6°C. Over 52 years of records, the warmest October 20th was in 2025 (18°C average), while the coldest was 1974 (1°C) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 42% of October 20th dates historically, with the wettest October 20th recording 4.72" of rain. The last decade has been 5.8°F warmer on this date compared to 20-30 years ago.

The last decade has been 5.8°F warmer on this date compared to 20-30 years ago.

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

Year by Year History

YearHighLowPrecip
202521°C (69°F)15°C (59°F)--
202318°C (65°F)13°C (55°F)0"
20227°C (45°F)4°C (40°F)0.14"
202118°C (64°F)8°C (46°F)0"
202011°C (51°F)6°C (43°F)1.64"
201912°C (53°F)3°C (37°F)0"
201813°C (56°F)3°C (37°F)0"
201717°C (63°F)9°C (48°F)0"
201613°C (56°F)10°C (50°F)2.75"
201517°C (63°F)7°C (45°F)0"
20147°C (45°F)2°C (36°F)--
201312°C (54°F)6°C (42°F)0.1"
201219°C (66°F)8°C (46°F)0.95"
201114°C (57°F)9°C (48°F)2.54"
201013°C (55°F)4°C (40°F)0"
200914°C (57°F)8°C (46°F)0"
200811°C (52°F)6°C (42°F)0"
200718°C (64°F)14°C (57°F)0"
20069°C (48°F)1°C (34°F)2.63"
200511°C (51°F)3°C (37°F)0"
200411°C (52°F)1°C (34°F)0"
20037°C (44°F)2°C (35°F)1.9"
20026°C (42°F)1°C (33°F)0"
200116°C (60°F)11°C (51°F)--
200018°C (65°F)7°C (44°F)0"
199911°C (52°F)3°C (37°F)0.24"
199812°C (53°F)5°C (41°F)0.1"
199713°C (55°F)4°C (39°F)0"
199612°C (53°F)7°C (44°F)1.4"
199415°C (59°F)12°C (54°F)1.23"
19924°C (40°F)2°C (35°F)0.42"
19916°C (43°F)2°C (35°F)0.12"
19907°C (44°F)-1°C (30°F)0"
198910°C (50°F)1°C (34°F)3.96"
19888°C (47°F)0°C (32°F)0"
198714°C (58°F)11°C (51°F)0.7"
198614°C (57°F)8°C (46°F)0.04"
198512°C (54°F)4°C (40°F)0"
198416°C (60°F)12°C (53°F)0"
19837°C (45°F)1°C (33°F)0"
198218°C (65°F)9°C (48°F)0.36"
198113°C (55°F)1°C (33°F)0"
19808°C (46°F)4°C (40°F)0"
197917°C (62°F)12°C (54°F)0.51"
19789°C (49°F)2°C (36°F)0"
197713°C (55°F)7°C (45°F)0"
19766°C (42°F)1°C (34°F)4.72"
197512°C (53°F)8°C (46°F)0.56"
19742°C (36°F)-1°C (30°F)0"
19738°C (47°F)7°C (45°F)0.13"
19725°C (41°F)-3°C (27°F)0"
197118°C (64°F)5°C (41°F)0"

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