Weather on May 15 in Ottawa

Historical weather data for May 15 in Ottawa, Canada

Avg High19°C (67°F)
Avg Low8°C (47°F)
Warmest201423°C
Coldest19737°C

Based on 55 years of data from OTTAWA CDA

About This Date

May 15th in Ottawa, Canada typically brings mild spring weather, with average highs around 19°C and lows near 8°C. Over 55 years of records, the warmest May 15th was in 2014 (23°C average), while the coldest was 1973 (7°C) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 44% of May 15th dates historically, with the wettest May 15th recording 2.9" of rain. The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.

The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.

Planning for May 15th in Ottawa? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecip
202524°C (76°F)12°C (54°F)0.08"
202422°C (71°F)11°C (52°F)0.03"
202323°C (74°F)8°C (46°F)0"
202226°C (79°F)17°C (63°F)2.9"
202124°C (75°F)11°C (52°F)0"
202013°C (55°F)9°C (49°F)1.83"
201913°C (55°F)3°C (38°F)0.02"
201820°C (68°F)13°C (55°F)0"
201719°C (67°F)8°C (47°F)0"
20169°C (49°F)5°C (41°F)0"
201521°C (69°F)5°C (41°F)0"
201428°C (83°F)18°C (64°F)--
201317°C (62°F)2°C (35°F)0.14"
201224°C (75°F)12°C (53°F)0"
201113°C (56°F)8°C (47°F)0.24"
201017°C (62°F)10°C (50°F)0"
200919°C (66°F)7°C (45°F)0"
200819°C (66°F)8°C (46°F)0"
200717°C (63°F)10°C (50°F)1.5"
200618°C (65°F)11°C (51°F)0.28"
200519°C (67°F)7°C (45°F)0"
200421°C (69°F)17°C (62°F)0"
200319°C (67°F)10°C (50°F)0"
200216°C (61°F)3°C (37°F)0.48"
200121°C (69°F)4°C (40°F)0"
200014°C (58°F)5°C (41°F)0"
199925°C (77°F)6°C (43°F)0"
199829°C (85°F)13°C (55°F)0"
199715°C (59°F)8°C (46°F)0.32"
199619°C (67°F)3°C (37°F)0"
199516°C (61°F)11°C (52°F)0"
199417°C (62°F)4°C (40°F)1.26"
199321°C (69°F)9°C (48°F)0.33"
199219°C (67°F)3°C (37°F)0"
199125°C (77°F)4°C (39°F)0"
199019°C (67°F)8°C (47°F)0.06"
198922°C (71°F)6°C (42°F)0"
198819°C (67°F)3°C (38°F)0.51"
198711°C (52°F)6°C (43°F)0"
198621°C (70°F)12°C (54°F)0.08"
198522°C (72°F)6°C (43°F)0.1"
198412°C (53°F)4°C (39°F)0.06"
198316°C (61°F)14°C (57°F)0"
198221°C (70°F)7°C (45°F)0"
198117°C (62°F)9°C (49°F)2.72"
198015°C (59°F)6°C (42°F)0.18"
197919°C (67°F)8°C (46°F)0.26"
197815°C (59°F)10°C (50°F)0.26"
197721°C (70°F)4°C (39°F)0"
197622°C (72°F)7°C (44°F)0"
197524°C (75°F)11°C (52°F)0.81"
197422°C (71°F)14°C (58°F)0.48"
197313°C (55°F)2°C (36°F)0"
197220°C (68°F)12°C (54°F)0"
197121°C (70°F)1°C (33°F)0"

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