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Silao, Guanajuato climate
BSh Hot semi-arid
Silao has a mildly seasonal warm-temperate climate (Hot semi-arid, Köppen BSh). The hottest month is May with an average daily high near 89°F, while the coldest is January averaging around 43°F at night. Precipitation totals about 25 inches a year and is strongly seasonal — July alone averages 5.9 inches while December barely receives 0.17 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)Silao climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 75 | 79 | 83 | 87 | 89 | 85 | 81 | 81 | 79 | 79 | 77 | 76 |
| Avg temp (°F) | 59 | 62 | 66 | 70 | 73 | 72 | 70 | 69 | 69 | 66 | 62 | 60 |
| Avg low (°F) | 43 | 45 | 49 | 53 | 57 | 59 | 58 | 58 | 58 | 53 | 47 | 44 |
| Precipitation (in) | 0.4 | 0.4 | 0.4 | 0.3 | 1.1 | 4.3 | 5.9 | 5.8 | 5.1 | 1.1 | 0.4 | 0.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 75 | 79 | 83 | 87 | 89 | 85 |
| Avg temp (°F) | 59 | 62 | 66 | 70 | 73 | 72 |
| Avg low (°F) | 43 | 45 | 49 | 53 | 57 | 59 |
| Precipitation (in) | 0.4 | 0.4 | 0.4 | 0.3 | 1.1 | 4.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 81 | 81 | 79 | 79 | 77 | 76 |
| Avg temp (°F) | 70 | 69 | 69 | 66 | 62 | 60 |
| Avg low (°F) | 58 | 58 | 58 | 53 | 47 | 44 |
| Precipitation (in) | 5.9 | 5.8 | 5.1 | 1.1 | 0.4 | 0.2 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 35 | 29 | 27 | 34 | 41 | 61 | 67 | 62 | 63 | 44 | 30 | 33 |
| Relative humidity (%) | 58 | 52 | 44 | 39 | 44 | 59 | 69 | 71 | 73 | 69 | 66 | 62 |
| Wind speed (mph) | 5.4 | 5.5 | 5.8 | 5.9 | 5.6 | 6.4 | 6.2 | 6.3 | 6.4 | 6.0 | 5.7 | 5.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 35 | 29 | 27 | 34 | 41 | 61 |
| Relative humidity (%) | 58 | 52 | 44 | 39 | 44 | 59 |
| Wind speed (mph) | 5.4 | 5.5 | 5.8 | 5.9 | 5.6 | 6.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 62 | 63 | 44 | 30 | 33 |
| Relative humidity (%) | 69 | 71 | 73 | 69 | 66 | 62 |
| Wind speed (mph) | 6.2 | 6.3 | 6.4 | 6.0 | 5.7 | 5.2 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Santa Maria (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.