Climate graph St Helier
Precipitation is the lowest in February, with an average of 41 mm. With an average of 64 mm, the most precipitation falls in November.
Temperature graph St Helier
At an average temperature of 18.0 °C, July is the hottest month of the year. January has the lowest average temperature of the year. It is 4.4 °C.
Climate table // historical Weather data St Helier
|Avg. Temperature (°C)||4.4||4.8||6.8||9.3||12.7||16.1||18||17.6||14.8||11.3||7.3||5.2|
|Min. Temperature (°C)||1.3||1.7||2.9||5.2||8.1||11.3||13.1||12.6||10.2||7.3||4||2.2|
|Max. Temperature (°C)||7.5||7.9||10.7||13.4||17.3||20.9||23||22.6||19.5||15.3||10.7||8.3|
|Avg. Temperature (°F)||39.9||40.6||44.2||48.7||54.9||61.0||64.4||63.7||58.6||52.3||45.1||41.4|
|Min. Temperature (°F)||34.3||35.1||37.2||41.4||46.6||52.3||55.6||54.7||50.4||45.1||39.2||36.0|
|Max. Temperature (°F)||45.5||46.2||51.3||56.1||63.1||69.6||73.4||72.7||67.1||59.5||51.3||46.9|
|Precipitation / Rainfall (mm)||60||41||49||47||50||51||48||54||58||63||64||63|
Between the driest and wettest months, the difference in precipitation is 23 mm. During the year, the average temperatures vary by 13.6 °C.