Driest month record

[thegasman]

Now seems an appropriate time to ask...

Is there a way to see the record driest month somewhere in Cumulus?

Martin

[duke]

I might be missing something, but, how would you calculate this? If you have more than one month without rain (0mm), how would you decide which was the driest?

[water01]

If you have more than one month without rain (0mm), how would you decide which was the driest?

In England

Install Mark Crossley's Top 10 script.

[PaulMy]

Using Mark's Top 10 http://www.komokaweather.com/mysql/top_10.php mine is the winter months of Dec, Jan and Feb but then precipitation comes as snow and I don't have a heater on my rain gauge

The Cumulus "All time records" will likely be a good hint, i.e. - "Longest Dry Period 20 days to 19 September 2009"

Paul

[mcrossley]

Not directly, you will have to extract that data yourself, as David (edit: and Paul) said, check my Top 10's script for SQL (also I have put this on the All Time, and Monthly records pages).

Once you have your data in SQL it is (relatively!) easy to slice and dice it how you want.

[RayProudfoot]

Running a query on my Access database that reads dayfile.txt confirms September 2014 as the driest month at this station since I started using Cumulus in May 2009.

0.41" (plus 0.02" today) means the total of 0.43" (11mm) is a clear winner. The next driest month was May 2010 with 0.47".

Of course this is a meaningful record only in countries where rainfall is usual in every month. Needless to say the UK manages that without too much trouble!

I will manually add an entry to my all-time records since it's unlikely it will be broken any time soon.

[mcrossley]

0.41" (plus 0.02" today) means the total of 0.43" (11mm) is a clear winner.

We are in remarkable agreement for this month, my count is 10.8 mm, but only a third place for me. December 2010 (suspect) and April 2011 have it beat. It is my driest September though, and second place in the most dry days in month table at 23 days. The exact opposite of August which had 23 rain days!

[RayProudfoot]

Amazing Mark! 0.43" is actually 10.9mm making it virtually identical.

I used a hair dryer in Dec 2010 to melt the snow in the rain gauge! It was not a pleasant experience. I recorded 0.81". April 2011 had 0.61". My next driest month was May 2010 with 0.47".

With 6 rain days that leaves Sept 2014 with 24 dry ones. August here had 22 wet and 9 dry. Pretty similar records for something so variable.

[thegasman]

Ok, thanks for the suggestions.
I hadn't really considered how you would deal with multiple zero months. As has been said, it rains every month in the UK.

I don't suppose I need the computer to tell me that the 8mm I recorded for September was an all-time low for the notoriously wet west of Scotland.

Martin

[water01]

0.41" (plus 0.02" today) means the total of 0.43" (11mm) is a clear winner.

We are in remarkable agreement for this month, my count is 10.8 mm, but only a third place for me. December 2010 (suspect) and April 2011 have it beat. It is my driest September though, and second place in the most dry days in month table at 23 days. The exact opposite of August which had 23 rain days!

Well we only had 0.39" in September (9.91mm) which for the Mendips is record dry month for my weather station!!

[ICP963]

That wouldn't work here in Arizona either, we went 127 dry days into July 7th this year here in Chandler AZ.

It tried to make up for it recently when I recorded 5.17 inches in around 3-4 hours on September 14th. Had visions of building an Ark that day.

Roy

[duke]

I hadn't really considered how you would deal with multiple zero months. As has been said, it rains every month in the UK.

Or for that matter, months that happen to have identical rain fall amounts.

[mcrossley]

Or for that matter, months that happen to have identical rain fall amounts.

Hasn't happened yet in four years, but that applies to any record, high/lo temp etc.