ClimateSearch

Oshawa, Ontario

Canada · 175k people · 108 m elevation · Northern Hemisphere

Every month in detail

Thirty-year averages for each calendar month.

Monthly climate normals. Values shown as an em dash are missing from the source data.
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Average high30°F (-1°C)32°F (0°C)40°F (5°C)52°F (11°C)65°F (18°C)74°F (24°C)79°F (26°C)78°F (26°C)71°F (22°C)58°F (14°C)46°F (8°C)35°F (2°C)
Average low16°F (-9°C)17°F (-8°C)26°F (-3°C)36°F (2°C)47°F (8°C)56°F (13°C)61°F (16°C)60°F (16°C)53°F (12°C)42°F (6°C)33°F (0°C)23°F (-5°C)
Dew point16°F (-9°C)16°F (-9°C)22°F (-6°C)32°F (0°C)44°F (7°C)55°F (13°C)61°F (16°C)61°F (16°C)55°F (13°C)43°F (6°C)32°F (0°C)23°F (-5°C)
Rainfall2.6 in (65 mm)2.3 in (59 mm)2 in (51 mm)3.2 in (82 mm)3.3 in (85 mm)3.3 in (85 mm)2.9 in (74 mm)3.1 in (79 mm)3.2 in (83 mm)3 in (76 mm)3.1 in (78 mm)2.6 in (65 mm)
Rainy days989101097781099
Snowfall9.8 in (24.9 cm)9.4 in (24 cm)6.9 in (17.6 cm)2.4 in (6 cm)0 in (0.1 cm)0 in (0 cm)0 in (0 cm)0 in (0 cm)0 in (0 cm)0.2 in (0.5 cm)3.1 in (8 cm)9.1 in (23 cm)
Sunshine88 h113 h157 h167 h218 h240 h269 h244 h199 h137 h93 h76 h

Scroll the table sideways for all twelve months.

Projected change, 2031–2050

Model projection, not an observation

How this city’s climate may change, measured against the same models’ own 1995–2014 output. Nothing here affects the match score above.

Change in summer afternoon highs

+3.4°F (+1.9°C)

Models range from +2.8°F (+1.6°C) to +4.1°F (+2.3°C)

Days above 90°F (32°C) a year

—

Too few hot days today to project a reliable change

Warming by month
  • January: +4.6°F (+2.5°C)
  • February: +3.9°F (+2.2°C)
  • March: +3.8°F (+2.1°C)
  • April: +3.3°F (+1.8°C)
  • May: +3.8°F (+2.1°C)
  • June: +2.9°F (+1.6°C)
  • July: +3.5°F (+2.0°C)
  • August: +3.7°F (+2.1°C)
  • September: +3.4°F (+1.9°C)
  • October: +2.8°F (+1.6°C)
  • November: +3.8°F (+2.1°C)
  • December: +3.7°F (+2.0°C)
Scenario
SSP5-8.5 (high emissions)
Models
4 · CMIP6 HighResMIP, downscaled

This is a high-emissions pathway — the upper end of plausible futures, not a central estimate. Changes are measured by each model against its own past output and then applied to the observed record, which cancels each model’s bias but not the genuine uncertainty about how much warming occurs. Where the models disagree widely, the range above is the honest answer.