The warmest days were the 21st and 22nd, getting to a maximum of 19C.
The city had four frosts in total that were all scattered throughout the month.
The average temperature in the city for the month was 9.7C, not even a degree below the September average of 10.6C. There was a total of 137mm of rainfall.
Holden described the month as "a cool miserable month apart from a few fine days".
He said he could not make any future predictions for October as the weather was always unpredictable.
FORECAST:
Today : Showers, chance thunder and hail, clearing this evening as northwest changes brisk southwest. High of 13C, low of 2C.
Tomorrow : Fine at first. A few showers from afternoon, possibly heavy, clearing evening. Strong, cold southwesterlies. High of 13C, low of 1C.
Thursday: Fine, but cloudy periods from afternoon. Southwesterlies. High of 12C, low of 1C.
Friday: Fine. Westerlies developing. High of 15C, low of 6C.