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Laredo, Texas climate
BSh Hot semi-arid
Laredo has a seasonal warm-temperate climate (Hot semi-arid, Köppen BSh). The hottest month is August with an average daily high near 38°C, while the coldest is January averaging around 8°C at night. Precipitation totals about 542 mm a year and is strongly seasonal — September alone averages 92 mm while February barely receives 21 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsLaredo climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 20 | 24 | 27 | 31 | 34 | 37 | 38 | 38 | 34 | 31 | 25 | 21 |
| Avg temp (°C) | 14 | 17 | 21 | 25 | 28 | 31 | 31 | 32 | 28 | 25 | 19 | 15 |
| Avg low (°C) | 8 | 10 | 14 | 18 | 22 | 24 | 25 | 25 | 22 | 19 | 13 | 9 |
| Precipitation (mm) | 23 | 21 | 41 | 37 | 70 | 64 | 54 | 43 | 92 | 44 | 26 | 27 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 20 | 24 | 27 | 31 | 34 | 37 |
| Avg temp (°C) | 14 | 17 | 21 | 25 | 28 | 31 |
| Avg low (°C) | 8 | 10 | 14 | 18 | 22 | 24 |
| Precipitation (mm) | 23 | 21 | 41 | 37 | 70 | 64 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 38 | 38 | 34 | 31 | 25 | 21 |
| Avg temp (°C) | 31 | 32 | 28 | 25 | 19 | 15 |
| Avg low (°C) | 25 | 25 | 22 | 19 | 13 | 9 |
| Precipitation (mm) | 54 | 43 | 92 | 44 | 26 | 27 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 4 | 4 | 4 | 3 | 5 | 4 | 3 | 3 | 8 | 3 | 3 | 6 |
| Days with high ≥ 32°C (days) | 0.3 | 2 | 7 | 14 | 21 | 26 | 27 | 28 | 22 | 18 | 3 | 0.4 |
| Days with low ≤ 0°C (days) | 1 | 0.2 | — | — | — | — | — | — | — | — | 0.1 | 0.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 4 | 4 | 4 | 3 | 5 | 4 |
| Days with high ≥ 32°C (days) | 0.3 | 2 | 7 | 14 | 21 | 26 |
| Days with low ≤ 0°C (days) | 1 | 0.2 | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 3 | 3 | 8 | 3 | 3 | 6 |
| Days with high ≥ 32°C (days) | 27 | 28 | 22 | 18 | 3 | 0.4 |
| Days with low ≤ 0°C (days) | — | — | — | — | 0.1 | 0.5 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 57 | 58 | 57 | 55 | 52 | 42 | 39 | 38 | 45 | 40 | 48 | 56 |
| Clear days (≤ 30% cloud) | 8 | 7 | 8 | 8 | 9 | 12 | 15 | 15 | 12 | 15 | 11 | 9 |
| Partly cloudy days (30–70%) | 9 | 8 | 9 | 10 | 12 | 12 | 10 | 11 | 9 | 9 | 9 | 9 |
| Cloudy days (≥ 70%) | 14 | 13 | 14 | 12 | 10 | 6 | 6 | 5 | 8 | 8 | 10 | 13 |
| Relative humidity (%) | 67 | 64 | 61 | 58 | 61 | 59 | 59 | 58 | 67 | 67 | 67 | 67 |
| Wind speed (mph) | 6.1 | 6.8 | 7.8 | 8.3 | 8.7 | 8.9 | 9.2 | 8.2 | 6.4 | 6.6 | 6.2 | 5.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 57 | 58 | 57 | 55 | 52 | 42 |
| Clear days (≤ 30% cloud) | 8 | 7 | 8 | 8 | 9 | 12 |
| Partly cloudy days (30–70%) | 9 | 8 | 9 | 10 | 12 | 12 |
| Cloudy days (≥ 70%) | 14 | 13 | 14 | 12 | 10 | 6 |
| Relative humidity (%) | 67 | 64 | 61 | 58 | 61 | 59 |
| Wind speed (mph) | 6.1 | 6.8 | 7.8 | 8.3 | 8.7 | 8.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 39 | 38 | 45 | 40 | 48 | 56 |
| Clear days (≤ 30% cloud) | 15 | 15 | 12 | 15 | 11 | 9 |
| Partly cloudy days (30–70%) | 10 | 11 | 9 | 9 | 9 | 9 |
| Cloudy days (≥ 70%) | 6 | 5 | 8 | 8 | 10 | 13 |
| Relative humidity (%) | 59 | 58 | 67 | 67 | 67 | 67 |
| Wind speed (mph) | 9.2 | 8.2 | 6.4 | 6.6 | 6.2 | 5.8 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Laredo Intl AP (NOAA GHCN station USW00012907), about 5 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.