What do you think your average September high will be?

[dunno what to put here]

Average high 18.0C / 64.4F.

Average low 9.6C / 49.2F.

Bang on average.

[The East Frisian]

Looks like the daily mean and the daily low will be exactly at our longterm averages of 14.2°C / 11.1°C respectively. Only our daily high will be a few tenths higher than that.

[bemusement]

This September has been hot. 28c max average.

[MeteoMan]

The final figure came out at 15.3°C which is 0.2°C below average.

[Ariete]

September week by week:

1st: hi 19.7C / lo 8.3C
2nd: 21.0C / 10.5C
3rd: 16.8C / 11.1C
4th: 11.2C / 3.7C
5th: 8.8C / 3.6C (only 2 days)

[B87]

Originally Posted by Ariete

September week by week:

1st: hi 19.7C / lo 8.3C
2nd: 21.0C / 10.5C
3rd: 16.8C / 11.1C
4th: 11.2C / 3.7C
5th: 8.8C / 3.6C (only 2 days)

Heathrow

1st: 24.3C / 12.6C
2nd: 17.3C / 10.8C
3rd: 16.6C / 8.4C
4th: 20.2C / 12.4C
5th: 19.1C / 14.0C

[chicagogeorge]

Chicago/Midway (Hi/Lo)

1st 27.4C / 17.2C
2nd: 28.7C / 18.6C
3rd: 22.6C / 14.4C
4th: 23.4C / 11.9C
5th: 21.9C / 16.3C

[ksolina]

Zagreb:

1st: 25.3/12.5
2nd: 22.3/12.1
3rd: 21.7/9.8
4th: 21.9/9.6
5th (two days): 11.9/9.7

[Ariete]

Originally Posted by ksolina

Zagreb:

1st: 25.3/12.5
5th (two days): 11.9/9.7

Now we're talking.