Climate averages 1991–2020
Erie weather
in August.
A warm, wet month: the 2nd warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Erie: daytime highs average 24.6°C and nights cool to about 19.1°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 111 mm of rain on roughly 13 days, which makes August a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 53 min on an average August day.
The nearest other city in this atlas is Brantford (113 km away). In August its highs average 25.3°C, 0.8°C warmer than Erie, with 75 mm of rain.
Among the 498 cities listed in the United States, Erie ranks joint 474th of 498 for the warmest August highs and joint 436th of 498 for the driest August (rainfall, lowest first). The mean August high of those 498 cities is 29.9°C; Erie is 5.3°C cooler than that mean.
From August to September, average highs fall by 3.3°C to 21.2°C, and monthly rainfall falls from 111 mm to 106 mm.
The annual picture
August 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
Erie climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 0.0°C-5.7°C | -5.7°C | 112 | 16.6 | 9.59 h |
| February | 0.5°C-6.2°C | -6.2°C | 78 | 12.1 | 10.511 h |
| March | 4.3°C-2.4°C | -2.4°C | 93 | 12.2 | 11.912 h |
| April | 10.9°C4.2°C | 4.2°C | 109 | 13.1 | 13.313 h |
| May | 17.8°C11.2°C | 11.2°C | 98 | 12.6 | 14.515 h |
| June | 23.1°C17.1°C | 17.1°C | 115 | 13.1 | 15.215 h |
| July | 25.3°C19.8°C | 19.8°C | 121 | 13.4 | 14.915 h |
| August, selected | 24.6°C19.1°C | 19.1°C | 111 | 12.6 | 13.914 h |
| September | 21.2°C15.6°C | 15.6°C | 106 | 11.1 | 12.513 h |
| October | 14.8°C9.5°C | 9.5°C | 125 | 14.5 | 11.111 h |
| November | 8.2°C3.5°C | 3.5°C | 123 | 15.5 | 9.810 h |
| December | 2.9°C-1.5°C | -1.5°C | 129 | 17.8 | 9.29 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
August in nearby cities
- Brantford in AugustCanada · 113 kmHigh 25.3°C · Low 16.5°C · 75 mm rain
- Stoney Creek in AugustCanada · 124 kmHigh 25.8°C · Low 17.6°C · 69 mm rain
- Hamilton in AugustCanada · 126 kmHigh 25.4°C · Low 18.7°C · 69 mm rain
- Buffalo in AugustUnited States · 130 kmHigh 24.5°C · Low 18.2°C · 85 mm rain
- London, Canada in AugustCanada · 134 kmHigh 25.1°C · Low 16.5°C · 84 mm rain
- St. Catharines in AugustCanada · 135 kmHigh 25.1°C · Low 19.1°C · 75 mm rain
- Niagara Falls in AugustCanada · 136 kmHigh 24.9°C · Low 18.5°C · 85 mm rain
- Cambridge, Canada in AugustCanada · 138 kmHigh 24.9°C · Low 16.0°C · 75 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 Erie) is explained once on the Erie year overview and on the Sources, method and limits page.