Average climate of St. Helens
The climate of St. Helens has an average yearly temperature of 14°C. Throughout the year, the average monthly temperature can drop to 8°C and rise to 21°C.
Annually, about 748 mm of rain falls. This gives a good overview of how much rain to expect in St. Helens. Additionally, about 6,0 cm of snow falls each year.
The best time to visit St. Helens is June until September. During this period, you will experience pleasant temperatures and not too much rain, making it ideal to visit St. Helens.
8 to 21°C
748 mm
6,0 cm
Table of contents
- Average yearly temperature: 14°C
- Highest temperature: 21°C in July
- Lowest temperature: 8°C in January
- Precipitation: 748 mm per year, averaging 62 mm per month
- Driest months: 36 mm in April, 52 mm in May and 55 mm in February
- Wettest months: 80 mm in October, 77 mm in December and 73 mm in November
- Snowfall: 6,0 cm per year
Climate table St. Helens
The climate table for St. Helens shows the average temperatures, precipitation, snowfall, and UV index per month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daytime temperature (°C) | 8 | 9 | 10 | 13 | 16 | 20 | 21 | 20 | 18 | 14 | 10 | 9 |
| Nighttime temperature (°C) | 2 | 3 | 4 | 5 | 8 | 11 | 13 | 13 | 11 | 8 | 5 | 4 |
| Precipitation (mm) | 71 | 55 | 60 | 36 | 52 | 58 | 60 | 65 | 61 | 80 | 73 | 77 |
| Snowfall (cm) | 1,7 | 0,3 | 1,8 | 0,1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2,1 |
| UV Index | 1 | 2 | 4 | 5 | 6 | 6 | 6 | 5 | 4 | 3 | 2 | 1 |
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Temperature per month in St. Helens
This graph shows the average high temperatures in degrees Celsius for each month in St. Helens, England
Precipitation per month in St. Helens
This graph shows the average monthly precipitation in millimeters in St. Helens, England.
Snowfall per month in St. Helens
This graph shows the average snowfall in centimeters per month in St. Helens, England.
UV index per month in St. Helens
This graph shows the average UV index per month in St. Helens, England.
Yearly temperature in St. Helens
This graph shows the average yearly temperature in St. Helens, England, measured in degrees Celsius.
Yearly total precipitation in St. Helens
This graph shows the average yearly precipitation in millimeters in St. Helens, England.
Yearly snowfall in St. Helens
This graph shows the average yearly snowfall in St. Helens, England, measured in centimeters.
Weather experiences in St. Helens
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Average weather in St. Helens per month
Click on a month below to see in detail how the weather typically is in St. Helens and what to expect. Based on the historical weather data of St. Helens, you can view the average temperature, precipitation, wind, and UV index for each day of the month.