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Alton, TX weather and climate

Hidalgo County, TX · population 19,205 · about 164 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Alton's own coordinates.

The year at a glance

Sunny days
238
clear or partly cloudy, per year
Precipitation
20 in
per year
Wet days
41
rain or snow per year
Snowfall
0 in
per year
Hot days
175
above 90 °F
Freezing nights
2
at or below 32 °F
Humidity
68%
average relative
Average temperature
74 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
6080100JanMarMayJulSepNovDaily high, Jan: 70 °FDaily high, Feb: 74 °FDaily high, Mar: 80 °FDaily high, Apr: 85 °FDaily high, May: 90 °FDaily high, Jun: 95 °FDaily high, Jul: 96 °FDaily high, Aug: 97 °FDaily high, Sep: 92 °FDaily high, Oct: 87 °FDaily high, Nov: 78 °FDaily high, Dec: 71 °FDaily low, Jan: 47 °FDaily low, Feb: 52 °FDaily low, Mar: 58 °FDaily low, Apr: 63 °FDaily low, May: 70 °FDaily low, Jun: 75 °FDaily low, Jul: 75 °FDaily low, Aug: 76 °FDaily low, Sep: 72 °FDaily low, Oct: 64 °FDaily low, Nov: 56 °FDaily low, Dec: 49 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high707480859095969792877871
Daily low475258637075757672645649

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.01.02.03.0JanMarMayJulSepNovAlton, Jan: 1.0 inAlton, Feb: 0.9 inAlton, Mar: 1.3 inAlton, Apr: 1.6 inAlton, May: 2.0 inAlton, Jun: 1.9 inAlton, Jul: 2.0 inAlton, Aug: 1.5 inAlton, Sep: 3.3 inAlton, Oct: 2.2 inAlton, Nov: 1.3 inAlton, Dec: 1.1 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Alton1.00.91.31.62.01.92.01.53.32.21.31.1

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovAlton, Jan: 16 daysAlton, Feb: 15 daysAlton, Mar: 18 daysAlton, Apr: 18 daysAlton, May: 21 daysAlton, Jun: 23 daysAlton, Jul: 23 daysAlton, Aug: 23 daysAlton, Sep: 20 daysAlton, Oct: 24 daysAlton, Nov: 20 daysAlton, Dec: 17 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Alton161518182123232320242017

Compare Alton with another city

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See weather for every covered Texas city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).