Państwa w Europie, Hertfordshire, Wielka Brytania – A
- Abbots Langley 1°C
- Albury 2,2°C
- Albury End 2,2°C
- Aldbury 0,4°C
- Aldenham 1°C
- Allen's Green 2,2°C
- Anstey 2,2°C
- Ardeley 0°C
- Ashwell 0°C
- Aspenden 0°C
- Aston 0°C
- Aston End 0°C
- Ayot St Lawrence 0,9°C
- Ayot St Peter 0,9°C