Climate averages 1991–2020

St Helens 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.

Average high 11.9°C Daytime mean, April
Average low 4.9°C Night-time mean, April
Rainfall 64 mm 13 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in St Helens · average highYear overview

April is a cool month in St Helens: daytime highs average 11.9°C and nights cool to about 4.9°C. By daytime temperature it is the 7th warmest of the 12 months.

Expect about 64 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 57 min on an average April day.

The nearest other city in this atlas is Warrington (12 km away). In April its highs average 12.0°C, about as warm as St Helens, with 65 mm of rain.

Among the 143 cities listed in the United Kingdom, St Helens ranks joint 96th of 143 for the warmest April highs and joint 111th of 143 for the driest April (rainfall, lowest first). The mean April high of those 143 cities is 12.2°C; St Helens is 0.3°C cooler than that mean.

From April to May, average highs rise by 3.0°C to 14.8°C, and monthly rainfall rises from 64 mm to 66 mm.

The annual picture

April in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 0510152025 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1000

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

St Helens climate table

1991–2020
Monthly climate averages for St Helens, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 6.9°C2.6°C2.6°C7915.08.18 h
February 7.4°C2.4°C2.4°C6813.29.810 h
March 9.4°C3.3°C3.3°C6713.011.812 h
April, selected 11.9°C4.9°C4.9°C6412.514.014 h
May 14.8°C7.8°C7.8°C6612.615.916 h
June 17.2°C10.7°C10.7°C7913.316.917 h
July 18.9°C12.7°C12.7°C8014.916.516 h
August 18.7°C12.7°C12.7°C8915.214.815 h
September 16.6°C10.8°C10.8°C7812.712.813 h
October 13.3°C8.2°C8.2°C9114.610.611 h
November 9.6°C5.2°C5.2°C9216.18.79 h
December 7.2°C3.0°C3.0°C9815.57.68 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

Distance from St Helens

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 limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for St Helens) is explained once on the St Helens year overview and on the Sources, method and limits page.

Wigan lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.