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St Helens, England Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in St Helens, England?
St Helens, England gets 1060 mm of precipitation a year over about 208 rainy days. July is the warmest month (average high 20°C) and January the coldest (average low 2°C).
Oceanic climate
St Helens, England has mild summers and chilly winters. Daytime highs range from about 8°C in January to 20°C in July. December is usually the wettest month. The most comfortable time to visit is typically June to September, when daytime highs sit near 19°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 2° | 8° |
| Spring | Mar–May | 5° | 13° |
| Summer | Jun–Aug | 12° | 19° |
| Autumn | Sep–Nov | 7° | 14° |
How much rain does St Helens get?
St Helens gets 1060 mm of precipitation in an average year, spread over about 208 days with measurable rain. That is more rainy days than 60% of the UK.
December is the wettest month, with 121 mm. April is the driest, with 55 mm. November has the most rainy days, about 22.
The longest dry spell in the last five years lasted 31 days, to May 22, 2025.
From October 2025 to September 2026 St Helens got 899 mm of rain, against a normal of 1060 mm for those months. November 2025 had the most, with 130 mm.
St Helens weather by month
St Helens weather in January
In January, St Helens averages a high of 8°C and a low of 2°C. It gets 90 mm of precipitation over about 20 rainy days. Estimated sunshine is 27% of daylight hours, derived from ERA5 cloud cover. The January record high is 14°C (2020) and the record low is -11°C (1970).
St Helens weather in February
In February, St Helens averages a high of 8°C and a low of 2°C. It gets 83 mm of precipitation over about 17 rainy days. Estimated sunshine is 24% of daylight hours, derived from ERA5 cloud cover. The February record high is 17°C (2008) and the record low is -8°C (1978).
St Helens weather in March
In March, St Helens averages a high of 11°C and a low of 3°C. It gets 67 mm of precipitation over about 16 rainy days. Estimated sunshine is 30% of daylight hours, derived from ERA5 cloud cover. The March record high is 22°C (2012) and the record low is -7°C (1986).
St Helens weather in April
In April, St Helens averages a high of 13°C and a low of 5°C. It gets 55 mm of precipitation over about 14 rainy days. Estimated sunshine is 35% of daylight hours, derived from ERA5 cloud cover. The April record high is 25°C (2025) and the record low is -4°C (2021).
St Helens weather in May
In May, St Helens averages a high of 16°C and a low of 8°C. It gets 63 mm of precipitation over about 14 rainy days. Estimated sunshine is 32% of daylight hours, derived from ERA5 cloud cover. The May record high is 31°C (2026) and the record low is -2°C (1996).
St Helens weather in June
In June, St Helens averages a high of 19°C and a low of 11°C. It gets 76 mm of precipitation over about 16 rainy days. Estimated sunshine is 33% of daylight hours, derived from ERA5 cloud cover. The June record high is 33°C (2026) and the record low is 1°C (1991). June is one of the most comfortable months to visit.
St Helens weather in July
In July, St Helens averages a high of 20°C and a low of 12°C. It gets 84 mm of precipitation over about 16 rainy days. Estimated sunshine is 26% of daylight hours, derived from ERA5 cloud cover. The July record high is 37°C (2022) and the record low is 4°C (1971). July is one of the most comfortable months to visit.
St Helens weather in August
In August, St Helens averages a high of 20°C and a low of 12°C. It gets 99 mm of precipitation over about 18 rainy days. Estimated sunshine is 31% of daylight hours, derived from ERA5 cloud cover. The August record high is 33°C (1990) and the record low is 3°C (1977). August is one of the most comfortable months to visit.
St Helens weather in September
In September, St Helens averages a high of 18°C and a low of 10°C. It gets 102 mm of precipitation over about 17 rainy days. Estimated sunshine is 28% of daylight hours, derived from ERA5 cloud cover. The September record high is 28°C (2021) and the record low is -1°C (1974). September is one of the most comfortable months to visit.
St Helens weather in October
In October, St Helens averages a high of 14°C and a low of 7°C. It gets 112 mm of precipitation over about 19 rainy days. Estimated sunshine is 22% of daylight hours, derived from ERA5 cloud cover. The October record high is 23°C (1995) and the record low is -5°C (1993).
St Helens weather in November
In November, St Helens averages a high of 11°C and a low of 4°C. It gets 107 mm of precipitation over about 22 rainy days. Estimated sunshine is 23% of daylight hours, derived from ERA5 cloud cover. The November record high is 18°C (2005) and the record low is -9°C (2010).
St Helens weather in December
In December, St Helens averages a high of 8°C and a low of 2°C. It gets 121 mm of precipitation over about 21 rainy days. Estimated sunshine is 21% of daylight hours, derived from ERA5 cloud cover. The December record high is 16°C (2016) and the record low is -13°C (1981).
Sunshine, humidity and wind in St Helens
April is the sunniest month in St Helens, with estimated sunshine of 35% of daylight hours from ERA5 cloud cover. December is the cloudiest, at 21%. The annual cloud-cover estimate is 28% of daylight hours; it is not a measurement of sunshine duration. St Helens is cloudier than 64% of the UK.
Humidity peaks in December at 87% and is lowest in April at 71%.
First and last freeze in St Helens
The first fall freeze in St Helens typically comes around November 4, and the last spring freeze around April 20. That leaves a frost-free growing season of about 198 days.
St Helens weather records
These records cover PRESTON: MOOR PARK during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the St Helens station is 37°C, on July 18, 2022. The coldest is -13°C, on December 18, 1981.
The wettest day in the available station history brought 72 mm of precipitation, on August 10, 2011.
39 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.3°C per decade since 1970.
The best time to visit St Helens
The most comfortable time to visit is typically June to September, when daytime highs sit near 19°C.
Winter (December–February) is chilly, with average highs around 8°C and lows near 2°C.
Spring (March–May) is mild, with average highs around 13°C and lows near 5°C.
Summer (June–August) is mild, with average highs around 20°C and lows near 12°C. It can feel humid.
Autumn (September–November) is mild, with average highs around 14°C and lows near 7°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 2° | 8° | 90 mm | 20 | 85% | 27% | 14° | -11° |
| February | 2° | 8° | 83 mm | 17 | 82% | 24% | 17° | -8° |
| March | 3° | 11° | 67 mm | 16 | 78% | 30% | 22° | -7° |
| April | 5° | 13° | 55 mm | 14 | 71% | 35% | 25° | -4° |
| May | 8° | 16° | 63 mm | 14 | 75% | 32% | 31° | -2° |
| June | 11° | 19° | 76 mm | 16 | 73% | 33% | 33° | 1° |
| July | 12° | 20° | 84 mm | 16 | 78% | 26% | 37° | 4° |
| August | 12° | 20° | 99 mm | 18 | 78% | 31% | 33° | 3° |
| September | 10° | 18° | 102 mm | 17 | 81% | 28% | 28° | -1° |
| October | 7° | 14° | 112 mm | 19 | 84% | 22% | 23° | -5° |
| November | 4° | 11° | 107 mm | 22 | 86% | 23% | 18° | -9° |
| December | 2° | 8° | 121 mm | 21 | 87% | 21% | 16° | -13° |
Station: PRESTON: MOOR PARK, 36 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
St Helens climate questions
How much rain does St Helens get?
St Helens gets 1060 mm of precipitation in an average year, over about 208 rainy days.
What is the wettest month in St Helens?
December is the wettest month in St Helens, with 121 mm. April is the driest, with 55 mm.
How many rainy days does St Helens have a year?
St Helens has about 208 days with measurable rain in an average year. November has the most, about 22.
What is the hottest month in St Helens?
July is the warmest month in St Helens, with an average high of 20°C.
What is the coldest month in St Helens?
January is the coldest month in St Helens, with an average low of 2°C.
What is the record high temperature in St Helens?
Within the available 1970–2026 station history, the record high at the St Helens station is 37°C, set on July 18, 2022. The record low is -13°C, on December 18, 1981.
What is the sunniest month in St Helens?
April is the sunniest month in St Helens, with estimated sunshine of 35% of daylight hours from ERA5 cloud cover. December is the cloudiest.
When is the first frost in St Helens?
The first fall freeze in St Helens typically comes around November 4. The last spring freeze is around April 20.
What is the best time to visit St Helens?
The most comfortable time to visit is typically June to September, when daytime highs sit near 19°C.