September Statistics

[stephenprudence]

Coming later... in a few hours... a very average month though with not much deviation from normal average. Within that though minimums were fairly extreme. Anyhow, they'll be on later. Feel free to add your own until then.

[Dave Brown]

Just reminded me. I did mine last week, but forgot to post them

[Dave Brown]

September 2013 Statistics

Summary: A very dry, but below average temperature month. First 5 days and 21st to 25th were above average, but most of the month was cool with often persistent NE winds. The predominantly sunny August gave way to a much more cloudy September which also contributed to below average temps. Many days had a tendency to be cloudy during daylight hours, but with skies clearing overnight allowing radiation cooling.

Below are the statistics for my weather station at Chalk ikentgra2 for the month of September2013

Mean Maximum: 19.3C (0.5C below LTA)
Mean Minimum: 10.6C (0.6C below LTA)
Overall Mean 14.9C (0.6C below LTA)

Monthly Rainfall total: 19.7mm (39.1 % LTA)
Rainfall days: 6 (2.5 days below LTA)
Max rainfall in one day: 11.4mm (13th Sep)
Total Snowfall: 0cm
Snowfall Days: 0

Highest daily maximum temperature: 27.1C (5th Sep)
Lowest daily maximum temperature: 13.9C (9th Sep)
Highest daily minimum temperature: 15.5C (5th Sep)
Lowest daily minimum temperature: 6.9C (15th Sep)

Days with Ground Frost: 0
Days with Air Frost: 0
Days of falling snow: 0
Days of lying snow: 0
Thunder days: 0

Temperature frequency breakdown

Maximum temperature:
10.0C to 14.9C: 1 day
15.0C to 19.9C: 18 days
20.0C to 24.9C: 8 days
25.0C to 29.9C: 3 days

Minimum temperature:
5.0C .to. 9.9C: 14 days
10.0C to 14.9C: 15 days
15.0C to 19.9C: 1 day

Wind ave
Month: 4.5mph
Max : 9.9mph (16th )

Wind max gust breakdown

Calm: days 0
1 to 10 mph: 0 Days
11 to 20 mph: 15 days
21 to 30 mph: 12 days
31 to 40 mph: 2 days
41 to 50 mph: 1 day
Max gust 41.0 mph (15th )

Compared to the Greenwich 1981-2010 LTA (LTA average = 15.5C), my average comes in at 14.9C, 0.6C below the average, so is a cool month.

[stephenprudence]

September 2013 Statistics

Below are the statistics for my weather station during the month of September

Mean Maximum: 18.7C
Mean Minimum: 10.9C
Overall Mean: 14.8C

Monthly Rainfall total: 35.6mm
Rainfall days: 10 days
Max rainfall in one day: 9.1mm (15th September)
Total Snowfall: 0cm
Snowfall Days (snow falling): 0cm
Max snowfall in one day: 0cm


Highest daily maximum temperature: 25.6C (4th September)
Lowest daily maximum temperature: 12.5C (17th September)
Highest daily minimum temperature: 13.7C (12th September)
Lowest daily minimum temperature: 7.4C (15th September)

Days with Ground Frost: 0
Days with Air Frost: 0
Days of falling snow: 0
Days of lying snow: 0
Thunder days: 0

Temperature frequency breakdown

Maximum temperature:
10.0C to 14.9C: 3 days
15.0C to 19.9C: 16 days
20.0C to 24.9C: 10 days
25.0C to 29.9C: 1 day

Minimum temperature:
5.0C to 9.9C: 12 days
10.0C to 14.9C: 18 days


Compared to the Colwyn Bay September average (81-10 average = 14.05), my average comes in at +0.75C above the Colwyn Bay average, making it a slightly above average month

[cheshirepalms]

Pretty happy with September up here, pretty dry and pretty warm, can't really ask for more.

Mean Maximum: 18.5c
Mean Minimum: 10.6c
Overall Mean: 14.5c

Highest daily maximum temperature: 26.3c 4/9/13
Lowest daily maximum temperature: 11.9c 17/9/13
Highest daily minimum temperature: 13.6c 25/9/13
Lowest daily minimum temperature: 6.3c 9/9/13

[madgav]

A little disappointed with Sep despite it being pretty much average. Often unsettled (after a fantastic first few days) particularly at weekends with only the final weekend of the month delivering some nice weather.

Mean maximum: 17.5°C (0.4°C above normal)
Mean minimum: 10.4°C (0.8°C above normal)
Mean: 13.3°C (0.0°C below normal)

Highest maximum: 24.0°C on the 2nd
Lowest maximum: 12.2°C on the 17th
Highest minimum: 14.3°C on the 2nd
Lowest minimum: 6.3°C on the 16th

Maximum temperature distribution:
10.0°C to 14.9°C: 7 days
15.0°C to 19.9°C: 18 days
20.0°C to 24.9°C: 5 days

Minimum temperature distribution:
5.0°C to 9.9°C: 12 days
10.0°C to 14.9°C: 18 days

Days when air frost occurred: 0 days
Ice days: 0 days

[Nathan]

September 2013 Statistics

The month started with some high temperatures & also ended with some warm temperatures, so despite the rest of the month having temperatures around average the month came in above average. Rainfall was once again below average...

Below are the statistics for my weather station in Southsea during September

Mean Maximum: 21.1C (+1.8C)
Mean Minimum: 13.8C (+1.0C)
Overall Mean: 17.5C (+1.4C)

Monthly Rainfall total: 38.0 mm (61%)
Rainfall days: 11 days
Max rainfall in one day: 7.9 mm (17th September)
Total Snowfall: 0cm
Snowfall Days (snow falling): 0cm
Max snowfall in one day: 0cm


Highest daily maximum temperature: 30.0C (5th September)
Lowest daily maximum temperature: 16.7C (8th September)
Highest daily minimum temperature: 17.6C (22nd September)
Lowest daily minimum temperature: 9.1C (15th September)

Days with Ground Frost: 0
Days with Air Frost: 0
Days of falling snow: 0
Days of lying snow: 0
Thunder days: 0

Temperature frequency breakdown

Maximum temperature:
15.0C to 19.9C: 12 days
20.0C to 24.9C: 14 days
25.0C to 29.9C: 3 day
30.0C to 34.9C: 1 day

Minimum temperature:
5.0C to 9.9C: 1 day
10.0C to 14.9C: 20 days
15.0C to 19.9C: 9 days


Compared to the Southsea September average (LTA = 16.1C), my average comes in at +1.4C above the average, making it an above average month.

[Dave Brown]

mmmm..... basically September was a spring month with a high across the centre of the country with low to the southeast across France. This set up gave winds totally opposite direction to normal, so therefore reversed temperature fortunes. Although I have had reasonably high temps compared to most, there was a cold wind which made if feel bad.