Annual Weather Review
Armidale NSW - 2010
© Compiled and written by Peter Burr, using data recorded at the Bureau of Meteorology weather station at East Armidale. No part of this review may be reproduced for commercial purposes without prior permission from the author.
2010 was a cloudy, slightly cooler than normal year with above average rainfall. Fine sunny conditions prevailed on 139 days with rain on 154 days.
RAINFALL: Rain totals were close to or above
average in all months except February, March and June which were below average.
Total for the year of 823.2 millimetres was 36 millimetres higher than the long
term average. The wettest months were January and November both recording 99.8
millimetres, and the driest was June with 25.4 millimetres. The highest daily
fall was 36.6 millimetres which fell during the afternoon of April 6th causing
minor flooding in Dumaresq Creek.
TEMPERATURES: Day temperatures were reasonably close to normal in the first half of the year, but were much cooler than normal from August to December. Maximum temperatures in both November and December were the coolest since 1999. Temperatures exceeded 30 degrees throughout the year on 10 days (LTA 14 days). Overnight temperatures were a little higher than normal in all months except May. The hottest day of the year was January 24th at 32.6 degrees, the coldest day was August 12th with a maximum of 6.8 degrees, and the coldest overnight temperature was -11.2 degrees on June 30th which was the lowest temperature recorded since July 1970.
WINDS: Winds were light in January, April and May, and light to moderate in all other months. The year totaled 11 windy days* (annual average 19 days).
Winds at were westerly on 113 days, easterly on 106 days, south-westerly on 53 days, south-easterly on 36 days, north-easterly on 20 days, north-westerly on 16 days, southerly on 14 days, and northerly on 7 days.
EVAPORATION: Due to the high number of cloudy days, evaporation was much lower than normal. Total for the year was 942.4 millimetres which was 266 mm less than the LTA. Average daily evaporation for the year was 2.6 mm.
FROSTS: Total frosts for the year was 79 which was 19 less than the LTA. This was due to the numerous cloudy nights. June was the frostiest month recording 18 frosts. There were 24 light frosts, 32 moderate frosts and 23 severe frosts. The first frost was on April 13th which produced a frost-free period of 175 days over the summer of 2009-10. The last frost was late in the year on December 21st.
FOGS: There were fogs on 32 days which is equal to the annual average. The foggiest month was May with fogs on 9 days. All fogs were in the early mornings with none in the evenings.
SNOW: Although there were a number of cold outbreaks
during the winter months, there were no snowfalls in 2010. The annual average
is 2.3 days of snow. The last snowfall in Armidale was on July 9th 2008.
THUNDERSTORMS: Thunderstorm activity was a lower than
normal with storms on 24 days. January was the month with the most storms (10
days), and April, June and August were thunderstorm-free.
HAIL: Hail fell on 1 day, May 5th - hailstones 10 to 15 mm diameter. The annual average is 3.3 hail days.
FLOODS: Moderate flooding occurred in Dumaresq Creek on November 17th. Minor or flash flooding occurred on April 6th, October 16th, November 18th & 19th, and December 24th, 25th & 26th.
LTA - Long Term Average * Windy day - average wind speed higher than 20 kms per hour: 9am to 6pm
Weather Statistics 2010 - Armidale NSW
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