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Nogales, Arizona climate
BSk Cold semi-arid
Nogales has a seasonal mild-temperate climate (Cold semi-arid, Köppen BSk). The hottest month is July with an average daily high near 33°C, while the coldest is December averaging around 3°C at night. Precipitation totals about 476 mm a year and is strongly seasonal — August alone averages 119 mm while May barely receives 4 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Nogales climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 18 | 18 | 22 | 25 | 29 | 34 | 33 | 32 | 31 | 27 | 22 | 17 |
| Avg temp (°C) | 10 | 11 | 14 | 17 | 21 | 26 | 26 | 25 | 24 | 19 | 14 | 10 |
| Avg low (°C) | 3 | 3 | 5 | 8 | 12 | 17 | 19 | 18 | 16 | 11 | 6 | 3 |
| Precipitation (mm) | 31 | 33 | 18 | 5 | 4 | 20 | 105 | 119 | 55 | 22 | 25 | 38 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 18 | 18 | 22 | 25 | 29 | 34 |
| Avg temp (°C) | 10 | 11 | 14 | 17 | 21 | 26 |
| Avg low (°C) | 3 | 3 | 5 | 8 | 12 | 17 |
| Precipitation (mm) | 31 | 33 | 18 | 5 | 4 | 20 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 33 | 32 | 31 | 27 | 22 | 17 |
| Avg temp (°C) | 26 | 25 | 24 | 19 | 14 | 10 |
| Avg low (°C) | 19 | 18 | 16 | 11 | 6 | 3 |
| Precipitation (mm) | 105 | 119 | 55 | 22 | 25 | 38 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 37 | 41 | 34 | 26 | 23 | 26 | 61 | 56 | 35 | 25 | 30 | 36 |
| Relative humidity (%) | 48 | 46 | 40 | 31 | 25 | 22 | 45 | 51 | 48 | 41 | 42 | 48 |
| Wind speed (km/h) | 9.6 | 9.9 | 10.1 | 10.8 | 10.8 | 10.4 | 7.7 | 6.6 | 7.7 | 8.5 | 9.2 | 9.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 37 | 41 | 34 | 26 | 23 | 26 |
| Relative humidity (%) | 48 | 46 | 40 | 31 | 25 | 22 |
| Wind speed (km/h) | 9.6 | 9.9 | 10.1 | 10.8 | 10.8 | 10.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 56 | 35 | 25 | 30 | 36 |
| Relative humidity (%) | 45 | 51 | 48 | 41 | 42 | 48 |
| Wind speed (km/h) | 7.7 | 6.6 | 7.7 | 8.5 | 9.2 | 9.6 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Nogales (dge), about 3 km from the city centre.
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.