Armidale NSW - 2015
© Compiled and written by Peter Burr, using data
recorded at the Bureau of Meteorology weather station at East Armidale, station
no 56037. No part of this review may be reproduced
for commercial purposes without prior permission from the author.
was a warm and very dry year.
RAINFALL: The total of 621.6 mm was 163 mm lower than the long term average (LTA) and was the fourth consecutive year with below average rain. Above average rain fell in January, May, August and December, and below average in the remainder. January was the wettest month recording 113.2 mm, and March was the driest with just 11.6 millimetres. Conditions were particularly dry from May through to November with good falls finally arriving in December. The highest daily fall during the year was 36.2 mm on 23rd December.
TEMPERATURES: It was a slightly warmer than normal year with March, October and November having the highest deviations above the LTA for day temperatures. The hottest day of the year was 20th March recording 33.8 degrees which was the highest for the month of March since 7th March 1938 (34.4 deg). The coldest day was 12th July with a maximum of 5.7 degrees, and the coldest overnight minimum was -7.1 degrees on 2nd July. Overnight temperatures were mostly close to normal except in May, October and November which were much warmer than the LTA.
WINDS: Winds were light in January, March, June, and October, and light to moderate in all other months. The year totalled 8 windy days* (annual average 19 days).
Wind direction at 3pm: west: 145 days, east: 97 days, south-west: 44 days, north-west: 27 days, south-east: 26 days, south: 12 days, north-east: 11 days, north: 3 days.
EVAPORATION: Total pan evaporation for the year was 1,131.6 millimetres which was 59 mm lower than the LTA. Average daily evaporation for the year was 3.1 mm.
FROSTS: Total frosts was 92 which was 7 less than the LTA. August was the frostiest month recording 23 frosts. There were 26 light frosts, 43 moderate frosts and 23 severe frosts**. The first frost was on 28th March which produced a frost-free period of 175 days over the summer of 2014-15. The last frost was on 2nd October.
FOGS: There were fogs on 23 days which is nine less than the annual average. The foggiest month was June with fogs on 7 days. There was one late evening fog with the remainder in the early mornings.
SNOW: Snow fell on four days:
12th July - very light snow showers during the day, not settling.
13th July - early morning snow showers partly settled to give a patchy cover in centre of city, a little heavier in South Armidale.
16th July - intermittent light snow from 9pm continuing throughout the night.
17th July - morning light snow until around 11am. Snow settled to give a patchy cover on the ground about 1 cm.
The annual average is 2.2 days of snow.
THUNDERSTORMS: It was a thundery year with storms on 46
days, 9 more than the LTA. Thunderstorm activity was highest in January,
February, October and November. There were no severe storms.
HAIL: Hail fell on 3 days - 18th March (small hailstones less than 10 mm diameter, sparse), 16th September (hailstones up to 18 mm diameter), 13th October (hailstones up to 10 mm diameter). The annual average is 3.3 hail days.
FLOODS: Minor flooding occurred in Dumaresq Creek on 27th January, 4th April, 24th August, 22nd December. Minor brief flash flooding events may have occurred on other dates not noted here.
LTA - Long Term Average * Windy day - average wind speed higher than 20 kms per hour: 9am to 6pm
** Intensity of frosts: light - minimum temp > 0.0C, moderate - minimum temp -3.9C to -0.1C, severe - minimum temperature <-3.9C.
Statistics 2015 - Armidale NSW
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