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San Benito, Texas climate
Cfa Humid subtropical
San Benito has a seasonal tropical climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 37°C, while the coldest is January averaging around 11°C at night. Precipitation totals about 716 mm a year and is strongly seasonal — September alone averages 146 mm while February barely receives 30 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 countsSan Benito climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 22 | 24 | 27 | 30 | 33 | 35 | 36 | 37 | 34 | 31 | 27 | 23 |
| Avg temp (°C) | 16 | 19 | 21 | 25 | 28 | 30 | 30 | 31 | 29 | 25 | 21 | 17 |
| Avg low (°C) | 11 | 13 | 16 | 19 | 22 | 24 | 25 | 25 | 23 | 19 | 15 | 11 |
| Precipitation (mm) | 31 | 30 | 38 | 58 | 69 | 60 | 62 | 53 | 146 | 78 | 51 | 40 |
| Snowfall (cm) | — | — | — | — | — | — | — | — | — | — | — | 0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 22 | 24 | 27 | 30 | 33 | 35 |
| Avg temp (°C) | 16 | 19 | 21 | 25 | 28 | 30 |
| Avg low (°C) | 11 | 13 | 16 | 19 | 22 | 24 |
| Precipitation (mm) | 31 | 30 | 38 | 58 | 69 | 60 |
| Snowfall (cm) | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 36 | 37 | 34 | 31 | 27 | 23 |
| Avg temp (°C) | 30 | 31 | 29 | 25 | 21 | 17 |
| Avg low (°C) | 25 | 25 | 23 | 19 | 15 | 11 |
| Precipitation (mm) | 62 | 53 | 146 | 78 | 51 | 40 |
| Snowfall (cm) | — | — | — | — | — | 0 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 5 | 6 | 4 | 5 | 6 | 5 | 6 | 10 | 6 | 6 | 7 |
| Days with high ≥ 32°C (days) | 0.1 | 0.6 | 2 | 7 | 17 | 24 | 27 | 28 | 21 | 10 | 0.9 | — |
| Days with low ≤ 0°C (days) | 0.5 | 0.4 | — | — | 0.0 | — | — | — | — | — | — | 0.3 |
| Days with snowfall ≥ 2.5 cm (days) | — | — | — | — | — | — | — | — | — | — | — | 0.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 5 | 6 | 4 | 5 | 6 |
| Days with high ≥ 32°C (days) | 0.1 | 0.6 | 2 | 7 | 17 | 24 |
| Days with low ≤ 0°C (days) | 0.5 | 0.4 | — | — | 0.0 | — |
| Days with snowfall ≥ 2.5 cm (days) | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 5 | 6 | 10 | 6 | 6 | 7 |
| Days with high ≥ 32°C (days) | 27 | 28 | 21 | 10 | 0.9 | — |
| Days with low ≤ 0°C (days) | — | — | — | — | — | 0.3 |
| Days with snowfall ≥ 2.5 cm (days) | — | — | — | — | — | 0.0 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 65 | 62 | 59 | 52 | 41 | 38 | 38 | 50 | 45 | 55 | 67 |
| Clear days (≤ 30% cloud) | 4 | 5 | 6 | 5 | 8 | 13 | 16 | 15 | 10 | 13 | 8 | 4 |
| Partly cloudy days (30–70%) | 11 | 9 | 11 | 13 | 13 | 11 | 10 | 11 | 11 | 11 | 11 | 11 |
| Cloudy days (≥ 70%) | 16 | 15 | 14 | 12 | 9 | 5 | 6 | 5 | 9 | 7 | 11 | 16 |
| Relative humidity (%) | 75 | 74 | 72 | 71 | 72 | 70 | 71 | 70 | 74 | 73 | 73 | 75 |
| Wind speed (mph) | 8.4 | 8.9 | 9.2 | 9.3 | 9.0 | 8.3 | 8.3 | 7.2 | 6.4 | 7.3 | 7.7 | 8.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 65 | 62 | 59 | 52 | 41 |
| Clear days (≤ 30% cloud) | 4 | 5 | 6 | 5 | 8 | 13 |
| Partly cloudy days (30–70%) | 11 | 9 | 11 | 13 | 13 | 11 |
| Cloudy days (≥ 70%) | 16 | 15 | 14 | 12 | 9 | 5 |
| Relative humidity (%) | 75 | 74 | 72 | 71 | 72 | 70 |
| Wind speed (mph) | 8.4 | 8.9 | 9.2 | 9.3 | 9.0 | 8.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 38 | 38 | 50 | 45 | 55 | 67 |
| Clear days (≤ 30% cloud) | 16 | 15 | 10 | 13 | 8 | 4 |
| Partly cloudy days (30–70%) | 10 | 11 | 11 | 11 | 11 | 11 |
| Cloudy days (≥ 70%) | 6 | 5 | 9 | 7 | 11 | 16 |
| Relative humidity (%) | 71 | 70 | 74 | 73 | 73 | 75 |
| Wind speed (mph) | 8.3 | 7.2 | 6.4 | 7.3 | 7.7 | 8.0 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Harlingen (NOAA GHCN station USC00413943), about 9 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.