Average Rainy - Precipitation days in St Helens

St Helens sees 166 days of precipitation annually, totaling to 749 mm of rain. Learn more about it on this page.

Monthly Distribution of Rainy Days

The wettest month is November, with 14 rainy days bringing 77 mm of rain. In contrast, May sees 14 rainy days with 42 mm of rain.

Amsterdam Precipitation Days Compared World Wide

On average, St Helens receives over 166 days of precipitation annually. For comparison, here is some data from popular tourist destinations around the world:

In Riyadh, Saudi Arabia, there are about 29 precipitation days annually, reflecting its dry desert environment.

In Kuala Lumpur, Malaysia, the city experiences around 212 precipitation days annually, consistent with its tropical rainforest climate.

In Athens, Greece, it rains around 70 days in the year; therefore, it is one of the driest Mediterranean cities, mainly dominated by winter rainfall.

The climate in San Francisco, USA, sees around 70 precipitation days annually, mostly during the winter months.

Osaka, Japan, experiences 198 precipitation days annually, with wetter summers compared to winter.

Adelaide, Australia, records about 86 precipitation days per year, with dry summers and wet winters.

Rain Facts From Around the Globe

Let’s explore more fascinating precipitation records:

• Tutunendo, Colombia, gets about 340 days of rain every year, which arguably makes it the wettest place in the world.
• On Réunion Island, a tropical cyclone generated 1825 mm in just 24 hours.
• Singapore receives thunder on 167 days in the year and is considered one of the most thunderous cities in the world.
• The smallest drops that fall are called drizzle drops, and they have a diameter of 0.5 mm.
• Some heavy storms generate "diamond dust," which consists of very small ice crystals that float in the air.

For more detailed information about rainfall patterns in St Helens, visit our Rainfall & Precipitation page.