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Merlo, Argentina climate
Cfa Humid subtropical
Merlo has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is January with an average daily high near 86°F, while the coldest is July averaging around 42°F at night. Around 42 inches of precipitation falls each year, peaking in October (4.5 inches) and easing off in June (2.0 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)Merlo climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 86 | 83 | 80 | 73 | 66 | 61 | 59 | 64 | 67 | 72 | 78 | 83 |
| Avg temp (°F) | 75 | 73 | 69 | 63 | 56 | 52 | 50 | 54 | 57 | 62 | 68 | 73 |
| Avg low (°F) | 65 | 64 | 60 | 53 | 48 | 43 | 42 | 44 | 48 | 53 | 57 | 62 |
| Precipitation (in) | 4.2 | 4.4 | 4.4 | 4.1 | 3.1 | 2.0 | 2.2 | 2.3 | 2.6 | 4.5 | 4.1 | 3.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 86 | 83 | 80 | 73 | 66 | 61 |
| Avg temp (°F) | 75 | 73 | 69 | 63 | 56 | 52 |
| Avg low (°F) | 65 | 64 | 60 | 53 | 48 | 43 |
| Precipitation (in) | 4.2 | 4.4 | 4.4 | 4.1 | 3.1 | 2.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 59 | 64 | 67 | 72 | 78 | 83 |
| Avg temp (°F) | 50 | 54 | 57 | 62 | 68 | 73 |
| Avg low (°F) | 42 | 44 | 48 | 53 | 57 | 62 |
| Precipitation (in) | 2.2 | 2.3 | 2.6 | 4.5 | 4.1 | 3.9 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 47 | 47 | 46 | 51 | 56 | 58 | 59 | 54 | 55 | 55 | 50 | 46 |
| Relative humidity (%) | 63 | 68 | 71 | 77 | 82 | 83 | 82 | 79 | 76 | 74 | 68 | 63 |
| Wind speed (mph) | 6.2 | 5.9 | 5.8 | 5.7 | 5.5 | 5.8 | 6.1 | 6.3 | 6.6 | 6.6 | 6.6 | 6.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 47 | 47 | 46 | 51 | 56 | 58 |
| Relative humidity (%) | 63 | 68 | 71 | 77 | 82 | 83 |
| Wind speed (mph) | 6.2 | 5.9 | 5.8 | 5.7 | 5.5 | 5.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 59 | 54 | 55 | 55 | 50 | 46 |
| Relative humidity (%) | 82 | 79 | 76 | 74 | 68 | 63 |
| Wind speed (mph) | 6.1 | 6.3 | 6.6 | 6.6 | 6.6 | 6.4 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the WMO's CLINO 1991–2020 collection, measured at Castelar_inta, about 8 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.