Climate at a glance · Nepean
Annual mean6°day and night
Precipitation942 mma year
Warmest monthJulyavg high 27°
Coldest monthJanuaryavg low -15°
Average temperature by month
High · lowJanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation by month
942 mm a yearJanFebMarAprMayJunJulAugSepOctNovDec
Monthly averages
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | -6° | -3° | 3° | 12° | 19° | 24° | 27° | 25° | 20° | 13° | 5° | -2° |
| Avg low | -15° | -13° | -7° | 1° | 8° | 13° | 16° | 14° | 10° | 3° | -2° | -10° |
| Precip, mm | 65 | 54 | 64 | 75 | 80 | 93 | 92 | 85 | 90 | 86 | 82 | 76 |
Climate normals 1981–2010 · Ottawa Macdonald-cartier Int'l A station (4 km away) · Environment and Climate Change Canada
45.3362°N, 75.7225°W · Elevation 87 m