Climate averages 1991–2020
Dartmouth weather
in June.
A mild, wet month: the 4th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a mild month in Dartmouth: daytime highs average 18.4°C and nights cool to about 11.2°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 98 mm of rain on roughly 12 days, which makes June a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 30 min on an average June day.
The nearest other city in this atlas is Halifax (3 km away). In June its highs average 16.8°C, 1.6°C cooler than Dartmouth, with 98 mm of rain.
Among the 86 cities listed in Canada, Dartmouth ranks 79th of 86 for the warmest June highs and joint 58th of 86 for the driest June (rainfall, lowest first). The mean June high of those 86 cities is 21.4°C; Dartmouth is 3.1°C cooler than that mean.
From June to July, average highs rise by 3.8°C to 22.2°C, and monthly rainfall falls from 98 mm to 90 mm.
The annual picture
June 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
Dartmouth climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -0.5°C-7.9°C | -7.9°C | 111 | 11.5 | 9.29 h |
| February | -0.1°C-7.7°C | -7.7°C | 101 | 10.5 | 10.410 h |
| March | 3.0°C-4.0°C | -4.0°C | 108 | 12.0 | 11.912 h |
| April | 8.1°C1.1°C | 1.1°C | 92 | 12.1 | 13.413 h |
| May | 13.6°C6.0°C | 6.0°C | 83 | 11.2 | 14.815 h |
| June, selected | 18.4°C11.2°C | 11.2°C | 98 | 11.7 | 15.516 h |
| July | 22.2°C15.8°C | 15.8°C | 90 | 10.3 | 15.215 h |
| August | 22.5°C16.4°C | 16.4°C | 91 | 10.2 | 14.114 h |
| September | 19.3°C13.3°C | 13.3°C | 97 | 9.4 | 12.613 h |
| October | 13.5°C8.0°C | 8.0°C | 124 | 10.6 | 11.011 h |
| November | 7.9°C2.6°C | 2.6°C | 129 | 11.1 | 9.610 h |
| December | 2.9°C-3.0°C | -3.0°C | 134 | 13.3 | 8.99 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
June in nearby cities
- Halifax in JuneCanada · 3 kmHigh 16.8°C · Low 11.0°C · 98 mm rain
- Moncton in JuneCanada · 185 kmHigh 20.5°C · Low 11.5°C · 91 mm rain
- Saint John in JuneCanada · 206 kmHigh 17.8°C · Low 11.0°C · 108 mm rain
- Sydney, Canada in JuneCanada · 311 kmHigh 16.8°C · Low 9.9°C · 89 mm rain
- Québec in JuneCanada · 638 kmHigh 22.1°C · Low 12.6°C · 118 mm rain
- Lynn in JuneUnited States · 642 kmHigh 21.8°C · Low 15.0°C · 88 mm rain
- Lawrence (Massachusetts), United States in JuneUnited States · 648 kmHigh 24.5°C · Low 15.0°C · 87 mm rain
- Boston in JuneUnited States · 656 kmHigh 24.1°C · Low 14.9°C · 87 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 Dartmouth) is explained once on the Dartmouth year overview and on the Sources, method and limits page.
Halifax lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.