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Cessnock, New South Wales climate
Cfa Humid subtropical
Cessnock has a mildly seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is January with an average daily high near 31°C, while the coldest is July averaging around 5°C at night. Around 733 mm of precipitation falls each year, peaking in February (115 mm) and easing off in August (31 mm).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsCessnock climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 30 | 28 | 25 | 21 | 18 | 18 | 20 | 23 | 26 | 27 | 29 |
| Avg temp (°C) | 24 | 24 | 22 | 18 | 15 | 12 | 11 | 13 | 16 | 18 | 21 | 23 |
| Avg low (°C) | 18 | 18 | 16 | 11 | 9 | 6 | 5 | 5 | 8 | 11 | 14 | 16 |
| Precipitation (mm) | 67 | 115 | 75 | 48 | 47 | 65 | 36 | 31 | 49 | 53 | 70 | 77 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 30 | 28 | 25 | 21 | 18 |
| Avg temp (°C) | 24 | 24 | 22 | 18 | 15 | 12 |
| Avg low (°C) | 18 | 18 | 16 | 11 | 9 | 6 |
| Precipitation (mm) | 67 | 115 | 75 | 48 | 47 | 65 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 18 | 20 | 23 | 26 | 27 | 29 |
| Avg temp (°C) | 11 | 13 | 16 | 18 | 21 | 23 |
| Avg low (°C) | 5 | 5 | 8 | 11 | 14 | 16 |
| Precipitation (mm) | 36 | 31 | 49 | 53 | 70 | 77 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 11 | 10 | 9 | 9 | 10 | 9 | 7 | 7 | 8 | 11 | 10 |
| Days with high ≥ 32°C (days) | 11 | 9 | 5 | 0.4 | — | — | — | — | 0.6 | 3 | 6 | 9 |
| Days with low ≤ 0°C (days) | — | — | — | — | 0.2 | 2 | 3 | 3 | 0.2 | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 11 | 10 | 9 | 9 | 10 |
| Days with high ≥ 32°C (days) | 11 | 9 | 5 | 0.4 | — | — |
| Days with low ≤ 0°C (days) | — | — | — | — | 0.2 | 2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 7 | 7 | 8 | 11 | 10 |
| Days with high ≥ 32°C (days) | — | — | 0.6 | 3 | 6 | 9 |
| Days with low ≤ 0°C (days) | 3 | 3 | 0.2 | — | — | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 60 | 61 | 57 | 52 | 49 | 52 | 46 | 41 | 44 | 55 | 62 | 61 |
| Clear days (≤ 30% cloud) | 6 | 5 | 7 | 8 | 10 | 9 | 11 | 13 | 12 | 8 | 5 | 6 |
| Partly cloudy days (30–70%) | 10 | 10 | 12 | 13 | 10 | 11 | 11 | 11 | 11 | 12 | 11 | 11 |
| Cloudy days (≥ 70%) | 14 | 13 | 12 | 9 | 10 | 10 | 8 | 7 | 7 | 12 | 13 | 15 |
| Relative humidity (%) | 65 | 70 | 73 | 73 | 75 | 80 | 77 | 70 | 65 | 63 | 64 | 64 |
| Wind speed (km/h) | 2.3 | 2.2 | 2.1 | 1.9 | 2.0 | 2.1 | 2.1 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 60 | 61 | 57 | 52 | 49 | 52 |
| Clear days (≤ 30% cloud) | 6 | 5 | 7 | 8 | 10 | 9 |
| Partly cloudy days (30–70%) | 10 | 10 | 12 | 13 | 10 | 11 |
| Cloudy days (≥ 70%) | 14 | 13 | 12 | 9 | 10 | 10 |
| Relative humidity (%) | 65 | 70 | 73 | 73 | 75 | 80 |
| Wind speed (km/h) | 2.3 | 2.2 | 2.1 | 1.9 | 2.0 | 2.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 46 | 41 | 44 | 55 | 62 | 61 |
| Clear days (≤ 30% cloud) | 11 | 13 | 12 | 8 | 5 | 6 |
| Partly cloudy days (30–70%) | 11 | 11 | 11 | 12 | 11 | 11 |
| Cloudy days (≥ 70%) | 8 | 7 | 7 | 12 | 13 | 15 |
| Relative humidity (%) | 77 | 70 | 65 | 63 | 64 | 64 |
| Wind speed (km/h) | 2.1 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 21 years of daily observations at Cessnock (nulkaba), a weather station, about 3 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.