So far, the month has been sunny, with little cloud and low humidity.
Rainfall of only 6 mm to date suggests that, like eleven Mays in the last thirteen, the total will be below average (40 mm).

As has been stated on the other threads, Observatory Hill is currently rainless for the month and the prospects don't look too good over the next couple of weeks. Having a rainless May would be quite a kick in the guts after the summer/early autumn we've just had.

Here is the rain forecast for OZ in the next 8 days
May..11th to `18th
Looking mostly DRY across the Australian continent for this coming week

Note: this picture is hot linked and may change or update

3.4mm MTD here so far, about 1.4mm of that has been melting frost.
Here is map of NSW worth watching... MTD Rain
I fully expect a very dry May with current models.
Would be happy with another winter like 2008 which also had a very dry May.

Have had a very dry start to may tho could get onshore flow later in the week

almost halfway through the month and 0mm.

May rainfall here is likely to be 25 mm below normal.
But the spring and summer months, on the average, were more than 30 mm above normal.

Yep, the rainfall in this neck of the woods has been very scant since last September. This is in the Wimmera region of Victoria. Had only 88mm September to end of December, and have only had 75mm so far this year. Hmm, it starts to get worrying - feeding sheep is constant.
It is a pathetic sight to see us being excited if we get 4mm of rain!
Thank goodness for the fogs.

The month is tending to very low daily minimums, very wide daily temperature ranges, and extremely low Dew Points.
Rainfall is low, but already well over the 0.2 mm total of May 2006.

Surly, its pretty definite now that you will get a huge boost to this month rain latter next week. What is your wettest May?

Peter, Manilla's wettest May was May 1983, which had 173 mm.
A boost of 162 mm to this month's rain would beat it.
Only 40% of May months have a rainfall above the average, which is 40.3 mm.

Pretty dry here so far for May. April was on the dry side of normal as well. Pretty much back to the status quo I guess as autumn/winter is showing a genuine drying trend down here in the SE.

We're currently on our 17th day since it last rained here. There is the chance of a shower over the next couple of days, but in all likelihood, it will probably stay dry until Thursday/Friday.

So far this month, the minimums are averaging 14.3ºC (Norm: 14.2) and maximums averaging 23.0ºC (Norm: 21.4)

The forecast State-wide deluge is almost over, adding 6.2 mm, for a monthly total so far of 12.6 mm. That is below the May median of 27 mm, let alone the mean of 40.3 mm.
It is going to be a cold day, but probably one or two degrees warmer than my 13-year record low for May of 11.1 degrees, set 30/5/11.

Drat!
It is one of those days when the diurnal temperature cycle fails.
At 10:30, the temperature is 1.3 degrees lower than at 09:00. It is likely that the 09:00 re-set reading (10.9) will be the highest temperature in the 24-hour day.

How much rain did this event give you Surly?.
My month total is now up to 63mm, but that is still below normal despite such a decent rainfall of 55mm.
Temp mean anomaly will be slightly negative for the month, but not a by a lot, only a few 10th.

Peter, not as much as 8 mm in that heralded event.

The total this month may not make it to the secondary mode of 16 to 20 mm on the histogram above.
Not that that secondary mode is likely to persist with future data. I think that the Weibull curve is a better predictor than the past observations that make up the columns of the histogram.
Provided that the histogram classes ( bins ) are all the same width (here 5 mm) the lowest class is the best predictor for May rainfall in Manilla. You can bet on it, provided that the bet is carefully stated.
Taking the actual record, the class 0-5 mm contains 13 observations, while the class 40-45 mm, which includes the mean (40.3 mm), contains only 4 observations - less than one third the number.
It would be a bit risky to bet that next May's rainfall would be 0 mm. Only two May months have registered 0 mm (including a 0.2 mm). The most frequent millimetre reading was 5 mm (five times), then four readings each of 18 mm and 22 mm.

12mm since midnight has tipped my May rainfall total to 57mm.

Brings my annual total to 1291mm (Tsv average 1047mm)

May for Bathurst has seen what may be a record min avge for the month.

Usual overnight for May is +3.3 we have had actual average 4 degrees lower at minus 0.7.

Daytime has been almost average at 16.3 instead of LT avge of 16.1.

Rainfall actual 47 vs avge about 41, pretty much all that rain was 1 single rain event of about 1.5 days. Ask anyone if it rained much in May and most people would say it was very dry.

25 nights below 2 dergees, most of those below zero. We had a run of 12 nights in a row below zero.

Up here, rainfall only 3mm below normal so pretty close. Mean temps -0.6 below normal, so a little on the cool side. Both max/min quite close to normal. In fact my average min came in right on normal, but max temp was -0.3 below. The true mean got pushed down below the mid point of max/min thanks to the excess of dry weather.