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Purísima de Bustos, Guanajuato climate
Cwa Monsoon-influenced humid subtropical
Purísima de Bustos has a mildly seasonal warm-temperate climate (Monsoon-influenced humid subtropical, Köppen Cwa). The hottest month is May with an average daily high near 32°C, while the coldest is January averaging around 8°C at night. Precipitation totals about 730 mm a year and is strongly seasonal — July alone averages 188 mm while December barely receives 7 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)Purísima de Bustos climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 26 | 29 | 31 | 32 | 30 | 28 | 28 | 27 | 27 | 26 | 25 |
| Avg temp (°C) | 16 | 18 | 20 | 23 | 24 | 23 | 22 | 22 | 21 | 20 | 18 | 17 |
| Avg low (°C) | 8 | 10 | 12 | 14 | 16 | 17 | 16 | 16 | 15 | 13 | 11 | 9 |
| Precipitation (mm) | 13 | 13 | 9 | 8 | 28 | 120 | 188 | 170 | 126 | 38 | 10 | 7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 26 | 29 | 31 | 32 | 30 |
| Avg temp (°C) | 16 | 18 | 20 | 23 | 24 | 23 |
| Avg low (°C) | 8 | 10 | 12 | 14 | 16 | 17 |
| Precipitation (mm) | 13 | 13 | 9 | 8 | 28 | 120 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 28 | 27 | 27 | 26 | 25 |
| Avg temp (°C) | 22 | 22 | 21 | 20 | 18 | 17 |
| Avg low (°C) | 16 | 16 | 15 | 13 | 11 | 9 |
| Precipitation (mm) | 188 | 170 | 126 | 38 | 10 | 7 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 38 | 32 | 31 | 36 | 41 | 57 | 63 | 58 | 61 | 44 | 33 | 37 |
| Relative humidity (%) | 57 | 51 | 42 | 37 | 41 | 56 | 67 | 69 | 72 | 67 | 64 | 61 |
| Wind speed (km/h) | 8.2 | 8.4 | 8.7 | 9.0 | 8.4 | 9.0 | 8.6 | 8.8 | 9.1 | 8.8 | 8.4 | 7.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 38 | 32 | 31 | 36 | 41 | 57 |
| Relative humidity (%) | 57 | 51 | 42 | 37 | 41 | 56 |
| Wind speed (km/h) | 8.2 | 8.4 | 8.7 | 9.0 | 8.4 | 9.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 58 | 61 | 44 | 33 | 37 |
| Relative humidity (%) | 67 | 69 | 72 | 67 | 64 | 61 |
| Wind speed (km/h) | 8.6 | 8.8 | 9.1 | 8.8 | 8.4 | 7.8 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Leon (dge), about 22 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.