Climate averages 1991–2020
Bolton weather
in April.
A cool, moderately wet month: the 7th warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Bolton: daytime highs average 11.5°C and nights cool to about 4.0°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 65 mm of rain on roughly 13 days, which makes April a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 58 min on an average April day.
The nearest other city in this atlas is Wigan (14 km away). In April its highs average 11.9°C, about as warm as Bolton, with 64 mm of rain.
Among the 143 cities listed in the United Kingdom, Bolton ranks joint 111th of 143 for the warmest April highs and joint 117th of 143 for the driest April (rainfall, lowest first). The mean April high of those 143 cities is 12.2°C; Bolton is 0.7°C cooler than that mean.
From April to May, average highs rise by 3.0°C to 14.5°C, and monthly rainfall rises from 65 mm to 67 mm.
The annual picture
April 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
Bolton climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.2°C1.7°C | 1.7°C | 83 | 15.1 | 8.18 h |
| February | 6.8°C1.4°C | 1.4°C | 72 | 13.3 | 9.810 h |
| March | 8.9°C2.4°C | 2.4°C | 70 | 13.0 | 11.812 h |
| April, selected | 11.5°C4.0°C | 4.0°C | 65 | 12.7 | 14.014 h |
| May | 14.5°C6.9°C | 6.9°C | 67 | 12.7 | 15.916 h |
| June | 16.9°C9.9°C | 9.9°C | 81 | 13.8 | 17.017 h |
| July | 18.6°C11.8°C | 11.8°C | 82 | 14.8 | 16.516 h |
| August | 18.2°C11.8°C | 11.8°C | 89 | 15.1 | 14.815 h |
| September | 16.1°C9.8°C | 9.8°C | 77 | 12.7 | 12.813 h |
| October | 12.7°C7.3°C | 7.3°C | 91 | 14.7 | 10.611 h |
| November | 8.9°C4.3°C | 4.3°C | 91 | 16.1 | 8.79 h |
| December | 6.5°C2.1°C | 2.1°C | 99 | 15.5 | 7.68 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
April in nearby cities
- Wigan in AprilUnited Kingdom · 14 kmHigh 11.9°C · Low 4.7°C · 64 mm rain
- Salford in AprilUnited Kingdom · 14 kmHigh 11.9°C · Low 4.2°C · 66 mm rain
- Manchester in AprilUnited Kingdom · 17 kmHigh 12.0°C · Low 4.2°C · 66 mm rain
- Rochdale in AprilUnited Kingdom · 19 kmHigh 11.5°C · Low 3.8°C · 66 mm rain
- Blackburn in AprilUnited Kingdom · 19 kmHigh 11.2°C · Low 3.8°C · 75 mm rain
- Oldham in AprilUnited Kingdom · 21 kmHigh 11.1°C · Low 3.6°C · 67 mm rain
- Warrington in AprilUnited Kingdom · 23 kmHigh 12.0°C · Low 4.7°C · 65 mm rain
- St Helens in AprilUnited Kingdom · 25 kmHigh 11.9°C · Low 4.9°C · 64 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 Bolton) is explained once on the Bolton year overview and on the Sources, method and limits page.
Warrington lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.