Climate averages 1991–2020
Blackburn weather
in August.
A mild, wet month: the 2nd warmest and the joint 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Blackburn: daytime highs average 17.9°C and nights cool to about 11.6°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 108 mm of rain on roughly 16 days, which makes August a wet month (the joint 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 50 min on an average August day.
The nearest other city in this atlas is Preston (15 km away). In August its highs average 18.2°C, about as warm as Blackburn, with 112 mm of rain.
Among the 143 cities listed in the United Kingdom, Blackburn ranks 130th of 143 for the warmest August highs and 139th of 143 for the driest August (rainfall, lowest first). The mean August high of those 143 cities is 19.7°C; Blackburn is 1.8°C cooler than that mean.
From August to September, average highs fall by 2.1°C to 15.7°C, and monthly rainfall falls from 108 mm to 91 mm.
The annual picture
August in context
Monthly rainfall
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
Blackburn climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.0°C1.5°C | 1.5°C | 103 | 16.3 | 8.18 h |
| February | 6.5°C1.3°C | 1.3°C | 90 | 14.1 | 9.710 h |
| March | 8.5°C2.1°C | 2.1°C | 84 | 13.8 | 11.812 h |
| April | 11.2°C3.8°C | 3.8°C | 75 | 13.6 | 14.014 h |
| May | 14.2°C6.7°C | 6.7°C | 79 | 13.6 | 15.916 h |
| June | 16.5°C9.7°C | 9.7°C | 91 | 14.3 | 17.017 h |
| July | 18.2°C11.6°C | 11.6°C | 99 | 15.9 | 16.517 h |
| August, selected | 17.9°C11.6°C | 11.6°C | 108 | 16.4 | 14.815 h |
| September | 15.7°C9.6°C | 9.6°C | 91 | 13.6 | 12.813 h |
| October | 12.4°C7.1°C | 7.1°C | 108 | 15.4 | 10.611 h |
| November | 8.7°C4.1°C | 4.1°C | 107 | 16.4 | 8.69 h |
| December | 6.3°C1.8°C | 1.8°C | 119 | 16.2 | 7.58 h |
Rainfall is the average of the 30 separate monthly totals. A rain 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
- Preston in AugustUnited Kingdom · 15 kmHigh 18.2°C · Low 12.5°C · 112 mm rain
- Burnley in AugustUnited Kingdom · 17 kmHigh 18.1°C · Low 11.5°C · 106 mm rain
- Bolton in AugustUnited Kingdom · 19 kmHigh 18.2°C · Low 11.8°C · 89 mm rain
- Wigan in AugustUnited Kingdom · 25 kmHigh 18.7°C · Low 12.5°C · 89 mm rain
- Rochdale in AugustUnited Kingdom · 26 kmHigh 18.3°C · Low 11.6°C · 89 mm rain
- Fylde in AugustUnited Kingdom · 30 kmHigh 17.8°C · Low 13.4°C · 117 mm rain
- Salford in AugustUnited Kingdom · 32 kmHigh 18.8°C · Low 11.9°C · 89 mm rain
- Oldham in AugustUnited Kingdom · 33 kmHigh 18.0°C · Low 11.4°C · 88 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 Blackburn) is explained once on the Blackburn year overview and on the Sources, method and limits page.