New York, NY 71° Los Angeles, CA 80° Chicago, IL 81° Houston, TX 87° Miami, FL 89° Phoenix, AZ 93° Seattle, WA 54° Denver, CO 80° Toronto, ON 60° Vancouver, BC 52°
WeatherLive › Ontario › Ottawa › Climate

Ottawa, ON Climate

Climate in Ottawa

The typical year in Ottawa (Ontario), from 1991-2020 normals. For what's happening now, see the current forecast; a month ahead — the 30-day outlook.

Annual mean temp
7.7°C
average across 12 months
Annual precipitation
1077 mm
yearly total
Warmest month
Jul
⌀ max 27°C
Coldest month
Jan
⌀ min -12°C

Temperatures by month

typical high (orange) · typical low (blue)
Jan
9° … 25°
Feb
11° … 29°
Mar
21° … 40°
Apr
33° … 52°
May
46° … 67°
Jun
57° … 75°
Jul
64° … 81°
Aug
62° … 78°
Sep
55° … 71°
Oct
44° … 58°
Nov
31° … 42°
Dec
19° … 32°

Precipitation by month

monthly totals across the year
Jan
77 mm
Feb
68 mm
Mar
77 mm
Apr
110 mm
May
83 mm
Jun
112 mm
Jul
108 mm
Aug
115 mm
Sep
76 mm
Oct
91 mm
Nov
74 mm
Dec
86 mm

The short version

RegionOntario
RegionOntario
Latitude45.4112°N
Annual mean7.7°C
Annual precipitation1077 mm

Weather map — Ottawa

Ottawa →
Source · 1991-2020 normals
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 3:33 PM