Weather on October 21 in Montreal

Historical weather data for October 21 in Montreal, Canada

Avg High12°C (53°F)
Avg Low5°C (41°F)
Warmest197919°C
Coldest19741°C

Based on 52 years of data from MONTREAL MCGILL

About This Date

October 21st in Montreal, Canada typically brings cool fall weather, with average highs around 12°C and lows near 5°C. Over 52 years of records, the warmest October 21st was in 1979 (19°C average), while the coldest was 1974 (1°C) — a 32°F range across recorded history. Precipitation has occurred on 52% of recorded October 21st dates, with snow falling 2% of the time (heaviest snowfall: 1.1"). The last decade has been 6.9°F warmer on this date compared to 20-30 years ago.

The last decade has been 6.9°F warmer on this date compared to 20-30 years ago.

Planning for October 21st in Montreal? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecip
202515°C (59°F)9°C (48°F)--
202314°C (58°F)8°C (47°F)2.08"
202214°C (58°F)5°C (41°F)0.03"
202114°C (58°F)9°C (49°F)0.49"
202016°C (61°F)5°C (41°F)1.4"
201916°C (60°F)4°C (40°F)0"
20185°C (41°F)1°C (33°F)0"
201721°C (70°F)12°C (53°F)0"
201610°C (50°F)8°C (46°F)4.21"
20159°C (49°F)3°C (37°F)0"
20148°C (46°F)6°C (42°F)0.32"
201314°C (58°F)4°C (40°F)0"
201213°C (55°F)8°C (46°F)0.11"
201113°C (55°F)8°C (47°F)0.22"
201010°C (50°F)3°C (37°F)0.64"
20099°C (49°F)3°C (38°F)0.18"
20088°C (47°F)3°C (37°F)1.74"
200723°C (74°F)12°C (53°F)0"
20067°C (44°F)2°C (35°F)0"
20059°C (49°F)2°C (35°F)0"
20048°C (46°F)3°C (37°F)0"
20033°C (38°F)2°C (35°F)3.67"
20026°C (43°F)0°C (32°F)0.1"
200116°C (60°F)9°C (49°F)1.06"
200018°C (65°F)4°C (40°F)0"
199911°C (52°F)4°C (40°F)0.1"
19989°C (48°F)3°C (38°F)0"
19978°C (46°F)1°C (34°F)0"
19967°C (45°F)6°C (42°F)5.7"
199417°C (63°F)12°C (53°F)0"
19926°C (42°F)2°C (36°F)0.06"
199110°C (50°F)3°C (37°F)0"
199018°C (64°F)3°C (37°F)0.26"
19897°C (45°F)4°C (40°F)0.4"
198810°C (50°F)1°C (34°F)0.28"
19876°C (43°F)5°C (41°F)0.06"
198612°C (54°F)8°C (46°F)0.04"
198511°C (51°F)3°C (38°F)0"
198418°C (64°F)9°C (49°F)0.7"
19838°C (46°F)1°C (33°F)0"
19829°C (48°F)6°C (43°F)0"
19817°C (45°F)7°C (44°F)0.82"
19807°C (44°F)2°C (36°F)0.62"
197923°C (73°F)15°C (59°F)0"
197818°C (64°F)7°C (45°F)0"
197716°C (60°F)5°C (41°F)0.36"
19767°C (44°F)4°C (40°F)0.05"
197516°C (60°F)9°C (49°F)0"
19743°C (38°F)-1°C (31°F)0"
197310°C (50°F)3°C (37°F)0"
197211°C (51°F)2°C (35°F)0"
197119°C (66°F)11°C (52°F)0"

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