Climate averages 1991–2020
Milton weather
in May.
A mild, moderately wet month: the 5th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Milton: daytime highs average 18.5°C and nights cool to about 8.8°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 83 mm of rain on roughly 11 days, which makes May a moderately wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 41 min on an average May day.
The nearest other city in this atlas is Burlington (15 km away). In May its highs average 17.4°C, 1.1°C cooler than Milton, with 81 mm of rain.
Among the 86 cities listed in Canada, Milton ranks joint 8th of 86 for the warmest May highs and joint 38th of 86 for the driest May (rainfall, lowest first). The mean May high of those 86 cities is 17.0°C; Milton is 1.5°C warmer than that mean.
From May to June, average highs rise by 5.2°C to 23.6°C, and monthly rainfall rises from 83 mm to 88 mm.
The annual picture
May 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
Milton climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -1.2°C-8.5°C | -8.5°C | 63 | 10.2 | 9.39 h |
| February | -0.3°C-8.8°C | -8.8°C | 53 | 8.1 | 10.510 h |
| March | 4.7°C-4.1°C | -4.1°C | 61 | 9.5 | 11.912 h |
| April | 11.4°C2.1°C | 2.1°C | 84 | 11.5 | 13.413 h |
| May, selected | 18.5°C8.8°C | 8.8°C | 83 | 11.2 | 14.715 h |
| June | 23.6°C14.6°C | 14.6°C | 88 | 11.8 | 15.415 h |
| July | 26.2°C17.5°C | 17.5°C | 81 | 10.8 | 15.115 h |
| August | 25.2°C17.0°C | 17.0°C | 72 | 9.5 | 14.014 h |
| September | 21.4°C13.5°C | 13.5°C | 73 | 9.1 | 12.613 h |
| October | 14.2°C7.3°C | 7.3°C | 76 | 10.9 | 11.111 h |
| November | 7.3°C1.2°C | 1.2°C | 70 | 9.9 | 9.710 h |
| December | 1.8°C-4.0°C | -4.0°C | 62 | 10.1 | 9.09 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
May in nearby cities
- Burlington in MayCanada · 15 kmHigh 17.4°C · Low 8.8°C · 81 mm rain
- Oakville in MayCanada · 18 kmHigh 16.8°C · Low 8.8°C · 81 mm rain
- Mississauga in MayCanada · 19 kmHigh 17.7°C · Low 8.1°C · 81 mm rain
- Brampton in MayCanada · 21 kmHigh 18.5°C · Low 8.0°C · 79 mm rain
- Etobicoke in MayCanada · 29 kmHigh 17.0°C · Low 8.1°C · 72 mm rain
- Hamilton in MayCanada · 30 kmHigh 17.0°C · Low 9.6°C · 83 mm rain
- Guelph in MayCanada · 30 kmHigh 18.3°C · Low 7.8°C · 88 mm rain
- Stoney Creek in MayCanada · 35 kmHigh 19.1°C · Low 9.0°C · 83 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 Milton) is explained once on the Milton year overview and on the Sources, method and limits page.