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Zacatecas, Zacatecas climate
BSk Cold semi-arid
Zacatecas has a mildly seasonal mild-temperate climate (Cold semi-arid, Köppen BSk). The hottest month is May with an average daily high near 80°F, while the coldest is January averaging around 42°F at night. Precipitation totals about 21 inches a year and is strongly seasonal — July alone averages 4.3 inches while April barely receives 0.30 inches.
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)Zacatecas climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 64 | 68 | 72 | 76 | 80 | 78 | 75 | 75 | 73 | 72 | 69 | 65 |
| Avg temp (°F) | 53 | 56 | 60 | 64 | 67 | 67 | 64 | 65 | 63 | 61 | 57 | 54 |
| Avg low (°F) | 42 | 44 | 47 | 51 | 54 | 56 | 54 | 54 | 53 | 51 | 46 | 44 |
| Precipitation (in) | 0.7 | 0.5 | 0.4 | 0.3 | 0.8 | 3.5 | 4.3 | 3.8 | 3.9 | 1.4 | 0.6 | 0.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 64 | 68 | 72 | 76 | 80 | 78 |
| Avg temp (°F) | 53 | 56 | 60 | 64 | 67 | 67 |
| Avg low (°F) | 42 | 44 | 47 | 51 | 54 | 56 |
| Precipitation (in) | 0.7 | 0.5 | 0.4 | 0.3 | 0.8 | 3.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 75 | 75 | 73 | 72 | 69 | 65 |
| Avg temp (°F) | 64 | 65 | 63 | 61 | 57 | 54 |
| Avg low (°F) | 54 | 54 | 53 | 51 | 46 | 44 |
| Precipitation (in) | 4.3 | 3.8 | 3.9 | 1.4 | 0.6 | 0.5 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 39 | 33 | 33 | 37 | 38 | 55 | 61 | 57 | 59 | 41 | 30 | 38 |
| Relative humidity (%) | 53 | 48 | 39 | 34 | 38 | 52 | 60 | 63 | 68 | 64 | 61 | 57 |
| Wind speed (mph) | 6.4 | 6.9 | 7.2 | 7.4 | 6.5 | 6.8 | 7.0 | 6.8 | 6.3 | 5.6 | 5.7 | 6.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 39 | 33 | 33 | 37 | 38 | 55 |
| Relative humidity (%) | 53 | 48 | 39 | 34 | 38 | 52 |
| Wind speed (mph) | 6.4 | 6.9 | 7.2 | 7.4 | 6.5 | 6.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 57 | 59 | 41 | 30 | 38 |
| Relative humidity (%) | 60 | 63 | 68 | 64 | 61 | 57 |
| Wind speed (mph) | 7.0 | 6.8 | 6.3 | 5.6 | 5.7 | 6.1 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Zacatecas (dge), inside the city.
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.