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Hume Reservoir: weather history since 1922

Hume Reservoir is a weather station located 184 m above sea level, 10 km from Albury. Its records go back to 1922: 54 years of temperature are available up to 2024, along with rainfall and a comparison with two reference normals. Over 1991–2020 the annual mean temperature there is 16.3 °C, clearly higher than over 1961–1990 (15.6 °C): a difference of 0.7 °C. The warmest year of the series is 2007 (18.0 °C) and the coldest 1966 (14.7 °C). The last complete year, 2024, ranks 11 out of 54, from warmest to coldest. Over 1961–2024, the annual mean temperature changes by +0.25 °C per decade. The station ranks 47 out of 227 stations, from the fastest rise to the slowest.

Annual mean temperature since 1922

141516171819
19221930194019501960197019801990200020102024
Mean temperature of the year   10-year running mean   1961–1990 normal (15.6 °C)   1991–2020 normal (16.3 °C)

The first ten years of the series (1966–1976) average 15.4 °C; the last ten (2014–2024) average 16.6 °C, a difference of +1.2 °C. Of the ten warmest years in the series, 9 fall after 1999. The warmest is 2007 (18.0 °C). The ten-year running mean peaks at 16.8 °C (2014) and bottoms out at 15.3 °C (1973).

Annual rainfall since 1922

050010001500
19221930194019501960197019801990200020102024
Rainfall of the year   Series average (702 mm)

On average 702 mm of rain falls per year over the 103 documented years. The wettest year, 2022, received 1218 mm; the driest, 2006, only 270 mm, which is 4.5 times less. The 1991–2020 normal (696 mm per year) is 15 mm (2.1 %) below the 1961–1990 one (711 mm). Over 1991–2020, July is on average the wettest month (73 mm) and February the driest (45 mm). Between 2005 and 2024, 11 years out of 20 exceeded the series average.

Monthly normals: 1961–1990 against 1991–2020

The table compares, month by month, the mean temperature and the rainfall total of two thirty-year reference periods. The difference column shows what the recent period changes compared with the earlier one.

Monthly temperature and rainfall normals, 1961–1990 and 1991–2020
MonthTemp. 1961–1990Temp. 1991–2020DifferenceRain 1961–1990Rain 1991–2020Difference
January23.5 °C24.8 °C+1.3 °C45 mm53 mm+8 mm
February23.8 °C24.1 °C+0.3 °C41 mm45 mm+4 mm
March20.6 °C20.9 °C+0.3 °C41 mm53 mm+12 mm
April16.1 °C16.5 °C+0.4 °C58 mm46 mm−12 mm
May12.0 °C12.3 °C+0.3 °C70 mm49 mm−21 mm
June8.7 °C9.6 °C+0.9 °C60 mm68 mm+8 mm
July7.8 °C8.8 °C+1.0 °C84 mm73 mm−11 mm
August9.5 °C9.8 °C+0.3 °C83 mm73 mm−10 mm
September11.6 °C12.4 °C+0.8 °C67 mm64 mm−3 mm
October14.8 °C15.7 °C+0.9 °C69 mm57 mm−12 mm
November18.1 °C19.3 °C+1.2 °C44 mm63 mm+19 mm
December21.1 °C22.0 °C+0.9 °C49 mm52 mm+3 mm

The largest temperature change is in January (+1.3 °C) and the smallest in March (+0.3 °C); over the year the mean difference is +0.7 °C, and 12 months out of twelve are warmer than before. For rainfall, the largest difference is in November (+19 mm) and the smallest in May (−21 mm).

Records at Hume Reservoir

  • Warmest year: 18.0 °C, in 2007
  • Coldest year: 14.7 °C, in 1966
  • Driest year: 270 mm, in 2006
  • Wettest year: 1218 mm, in 2022
  • Warmest month: 29.7 °C, in January 2019
  • Coldest month: 6.3 °C, in July 1966
  • Wettest month: 318 mm, in January 2022
  • Hottest day: 45.5 °C, on 31 January 2020
  • Coldest day: −2.8 °C, on 26 July 1986
  • Heaviest rain in one day: 134.2 mm, on 30 January 2023

3.3 °C separate the warmest year of the series from the coldest. Between the hottest and the coldest day on record, the range reaches 48.3 °C.

Temperature trend over 1961–2024

The regression line of annual mean temperature changes by +0.25 °C per decade between 1961 and 2024, about +1.6 °C over the whole period. That is faster than the median of the 227 stations (+0.19 °C per decade), by 0.06 °C per decade: the station ranks 47 out of 227.

The last 24 months against the 1991–2020 normal

−202
October 2024September 2026
Warmer than the 1991–2020 normal   Cooler than the 1991–2020 normal

Over the last 20 months (October 2024 to September 2026), 15 months out of 19 were warmer than the 1991–2020 normal for the same month; the mean departure is +1.0 °C. The highest departure was in January 2026 (+2.7 °C); the lowest, in June 2025 (−1.2 °C). The last twelve months add up to 686 mm of rain, which is 99 % of the 1991–2020 annual normal (696 mm).

Temperature and rainfall of recent months, compared with the 1991–2020 normals
MonthTemperatureDeparture from normalRainNormal rain
October 202417.1 °C+1.4 °C52 mm57 mm
November 202421.2 °C+1.9 °C122 mm63 mm
April 2025––9 mm46 mm
May 202513.7 °C+1.4 °C38 mm49 mm
June 20258.4 °C−1.2 °C57 mm68 mm
July 20259.2 °C+0.4 °C69 mm73 mm
August 202511.0 °C+1.2 °C38 mm73 mm
September 202512.5 °C+0.1 °C47 mm64 mm
October 202515.6 °C−0.1 °C28 mm57 mm
November 202518.6 °C−0.7 °C35 mm63 mm
December 202522.2 °C+0.2 °C56 mm52 mm
January 202627.5 °C+2.7 °C2 mm53 mm
February 202625.6 °C+1.5 °C71 mm45 mm
March 202622.0 °C+1.1 °C92 mm53 mm
April 202616.3 °C−0.2 °C25 mm46 mm
May 202613.7 °C+1.4 °C63 mm49 mm
June 202612.1 °C+2.5 °C99 mm68 mm
July 20269.3 °C+0.5 °C86 mm73 mm
August 202611.6 °C+1.8 °C92 mm73 mm
September 202614.8 °C+2.4 °C37 mm64 mm

Data source and licence

Data source: Bureau of Meteorology (ACORN-SAT) and NOAA NCEI (GHCN-Daily) (dataset “ACORN-SAT v2 daily (homogenised) + GHCN-Daily”), licence CC BY 4.0; Public domain (NOAA NCEI). Last updated: 29 October 2026.

The data for Hume Reservoir are shown as the source publishes them; this site does not correct them. A year is kept only if at least eleven months of measurements are available, and a normal is computed only with at least twenty years of data out of its thirty. Temperatures are rounded to 0.1 °C and rainfall to the millimetre. The station is one of 227 stations in Australia: the overview page lets you compare them.

Frequently asked questions

What is the annual mean temperature at Hume Reservoir?

Over 1991–2020, the annual mean temperature at Hume Reservoir is 16.3 °C. It was 15.6 °C over 1961–1990, a difference of +0.7 °C.

What is the warmest year ever measured at Hume Reservoir?

Since records began in 1922, the warmest year at Hume Reservoir is 2007, at 18.0 °C on average. The coldest is 1966 (14.7 °C).

Is the climate at Hume Reservoir getting warmer?

Yes: at Hume Reservoir, the annual mean temperature rises by 0.25 °C per decade between 1961 and 2024, +1.6 °C in total. 9 of the 10 warmest years in the series fall after 1999.

Towns near this station

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