January 2015: cool rainy days

Crepe myrtle shrubs

Crepe Myrtles in Arthur Street

Only five days were warmer than average. The final five days and four nights were very cool, taking the weekly average (normally the hottest of the year) down to five degrees below normal. (This would be normal for the end of March, not January!) There were fifteen rain days, equalling the 125-year record number for January, set in 1941. Rain was spread evenly through the month, with the highest reading 29.2 mm on the 2nd.

Weather log January 2015

Comparing January months

The mean daily maximum temperature (31.4°) was well below the average of 33.8°. Since nights, at 17.6°, were near normal, the daily temperature range was the record narrow value for January of 13.8°.
The dew point (humidity) returned to a normal value of 12.9°, after last January’s arid 6.9°. Subsoil temperature (25.3°) fell to normal after two January months above normal.
The total rainfall of 117.4 mm was in the 75th percentile, well above the average of 87 mm. This clears all shortages in rainfall totals for groups of months. The lowest percentile value remaining (15th) is for the 18 month total of 746 mm.

Climate for January 2015

Data. Rainfall data is from Manilla Post Office, courtesy of Phil Pinch. Temperatures, including subsoil at 750 mm, and other data are from 3 Monash  Street, Manilla.

Very cloudy November 2007

The daily weather logWeather log November 2007

Warm humid weather, including one night 8° above normal, continued into early November. This developed into a cool rainy week. The coldest day (the 7th), registering 18.6° (9.8° below normal!), followed the wettest day, which had 17.2 mm of rain.

Eight sunny days followed, (Good luck for the NSW Gliding Championships at Lake Keepit!) ending with a storm on the 19th. Four more cool wet days brought the rain total to 67.8 mm. The last days of the month were overcast with very little rain (0.4 mm).
This was an average November for rainfall and mean temperature. Generally, days were cooler than normal, and nights were warmer, making the daily temperature range (12.8°) the lowest by far in nine Novembers. It was also the cloudiest of those months, with 50% cloudy mornings. Typically, November has about two days hotter than 35°, but there were none this time.

 Comparing November monthsClimate November 2007

November 2007 was not a drought month. The total rainfall was near average, not only for the month itself, but also for the last 2, 3, 4…months up to 60 months. Beyond that, total rainfalls for the last 6 to 9 years were rather low, because they included the extreme drought of 2002.

Since 2002 there has been only one extreme drought event: May 2006 had no rain. A less extreme, but still severe event was the two to five month drought peaking in May 2005.

Data. Rainfall data is from Manilla Post Office, courtesy of Phil Pinch. Dew point values before August 2005 are from Tamworth Airport 6 am data supplied by the Bureau of Meteorology. Temperature and other data are from 3 Monash Street, Manilla.