Climate averages 1991–2020
Nepean weather
in March.
A cold, moderately wet month: the 9th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a cold month in Nepean: daytime highs average 2.7°C and nights cool to about -7.5°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 71 mm of rain on roughly 10 days, which makes March a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 53 min on an average March day.
The nearest other city in this atlas is Gloucester, Canada (7 km away). In March its highs average 2.5°C, about as warm as Nepean, with 71 mm of rain.
Among the 86 cities listed in Canada, Nepean ranks joint 50th of 86 for the warmest March highs and joint 47th of 86 for the driest March (rainfall, lowest first). The mean March high of those 86 cities is 3.8°C; Nepean is 1.1°C cooler than that mean.
From March to April, average highs rise by 8.1°C to 10.7°C, and monthly rainfall rises from 71 mm to 92 mm.
The annual picture
March in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Nepean climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -4.8°C-14.6°C | -14.6°C | 70 | 10.4 | 9.29 h |
| February | -3.0°C-13.4°C | -13.4°C | 57 | 8.9 | 10.410 h |
| March, selected | 2.7°C-7.5°C | -7.5°C | 71 | 10.2 | 11.912 h |
| April | 10.7°C0.3°C | 0.3°C | 92 | 11.3 | 13.513 h |
| May | 18.4°C7.7°C | 7.7°C | 85 | 11.3 | 14.915 h |
| June | 23.3°C13.3°C | 13.3°C | 95 | 11.3 | 15.616 h |
| July | 25.7°C16.3°C | 16.3°C | 94 | 11.7 | 15.315 h |
| August | 24.5°C15.7°C | 15.7°C | 86 | 10.8 | 14.114 h |
| September | 20.4°C11.8°C | 11.8°C | 90 | 9.9 | 12.613 h |
| October | 12.8°C5.4°C | 5.4°C | 97 | 11.7 | 11.011 h |
| November | 5.5°C-1.0°C | -1.0°C | 80 | 11.1 | 9.610 h |
| December | -1.1°C-8.4°C | -8.4°C | 76 | 11.5 | 8.89 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
March in nearby cities
- Gloucester, Canada in MarchCanada · 7 kmHigh 2.5°C · Low -7.4°C · 71 mm rain
- Ottawa in MarchCanada · 9 kmHigh 2.5°C · Low -7.0°C · 73 mm rain
- Kanata in MarchCanada · 16 kmHigh 2.7°C · Low -7.6°C · 69 mm rain
- Gatineau in MarchCanada · 16 kmHigh 2.5°C · Low -7.2°C · 73 mm rain
- Orléans, Canada in MarchCanada · 22 kmHigh 1.9°C · Low -7.3°C · 73 mm precipitation
- Kingston, Canada in MarchCanada · 137 kmHigh 2.3°C · Low -4.8°C · 73 mm rain
- Pierrefonds-Roxboro in MarchCanada · 148 kmHigh 1.9°C · Low -6.3°C · 73 mm precipitation
- Saint-Louis-de-Terrebonne in MarchCanada · 156 kmHigh 2.1°C · Low -7.5°C · 74 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Nepean) is explained once on the Nepean year overview and on the Sources, method and limits page.
Gloucester, Canada lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.