Climate almanac
Nepean
Ontario, CA · 45.34°, -75.72°
What is the climate like in Nepean?
The best time to visit Nepean is typically September, the year's most comfortable month (7.0/10). Nepean is warmest in July, when daily highs average 81°F (27°C), and coolest in January, when lows fall to about 11°F (-12°C). The wettest month is typically April and the driest is September; the year sees roughly 43 in of precipitation.
- Best time to visitSeptember — the year's comfort peak (7.0/10)
- Warmest monthJuly — average high 81°F (27°C)
- Coolest monthJanuary — average low 11°F (-12°C)
- Wettest monthApril (4.4 in)
- Driest monthSeptember (2.3 in)
- Annual precipitation43 in