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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 90°F, while the coldest is January averaging around 47°F at night. Precipitation totals about 29 inches a year and is strongly seasonal — July alone averages 7.4 inches while December barely receives 0.28 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)Purísima de Bustos climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 75 | 80 | 84 | 88 | 90 | 86 | 82 | 82 | 81 | 81 | 79 | 76 |
| Avg temp (°F) | 61 | 65 | 69 | 73 | 75 | 74 | 71 | 71 | 70 | 69 | 65 | 62 |
| Avg low (°F) | 47 | 50 | 53 | 58 | 61 | 62 | 60 | 60 | 60 | 56 | 51 | 48 |
| Precipitation (in) | 0.5 | 0.5 | 0.4 | 0.3 | 1.1 | 4.7 | 7.4 | 6.7 | 5.0 | 1.5 | 0.4 | 0.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 75 | 80 | 84 | 88 | 90 | 86 |
| Avg temp (°F) | 61 | 65 | 69 | 73 | 75 | 74 |
| Avg low (°F) | 47 | 50 | 53 | 58 | 61 | 62 |
| Precipitation (in) | 0.5 | 0.5 | 0.4 | 0.3 | 1.1 | 4.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 82 | 82 | 81 | 81 | 79 | 76 |
| Avg temp (°F) | 71 | 71 | 70 | 69 | 65 | 62 |
| Avg low (°F) | 60 | 60 | 60 | 56 | 51 | 48 |
| Precipitation (in) | 7.4 | 6.7 | 5.0 | 1.5 | 0.4 | 0.3 |
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 (mph) | 5.1 | 5.2 | 5.4 | 5.6 | 5.2 | 5.6 | 5.4 | 5.5 | 5.7 | 5.5 | 5.2 | 4.9 |
| 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 (mph) | 5.1 | 5.2 | 5.4 | 5.6 | 5.2 | 5.6 |
| 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 (mph) | 5.4 | 5.5 | 5.7 | 5.5 | 5.2 | 4.9 |
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.