Climateby Month

League City, TX climate by month

NOAA 1991-2020 normals · 19 ft elevation

League City has hot and oppressively humid summers and cool winters. Highs peak at 92°F in August and fall to 64°F in January. Wet days are spread through the year, from about 7 to 11 a month. By our comfort score the best months are March, April and November.

Warmest month
92°F
August normal high
Coldest month
46°F
January normal low
Wet days a year
111
60.2 in of precipitation
Muggy days a year
185
dew point 65°F or higher

How warm is League City?

Normal highs range from 64°F in January to 92°F in August.

40°50°60°70°80°90°100° January: normal high 64°F (18°C), low 46°F (8°C) 64° 46° February: normal high 67°F (19°C), low 50°F (10°C) March: normal high 73°F (23°C), low 56°F (13°C) April: normal high 78°F (26°C), low 61°F (16°C) May: normal high 85°F (29°C), low 69°F (21°C) June: normal high 90°F (32°C), low 75°F (24°C) July: normal high 92°F (33°C), low 76°F (24°C) 92° 76° August: normal high 92°F (33°C), low 76°F (24°C) September: normal high 88°F (31°C), low 72°F (22°C) October: normal high 82°F (28°C), low 63°F (17°C) November: normal high 73°F (23°C), low 53°F (12°C) December: normal high 66°F (19°C), low 47°F (8°C) JFMAMJJASOND

Bars run from the normal low to the normal high for each month.

How rainy is League City?

September has the most wet days (about 11); the year brings about 60 in of precipitation.

January: 10 wet days February: 9 wet days March: 9 wet days April: 8 wet days May: 7 wet days 7 June: 10 wet days July: 10 wet days August: 10 wet days September: 11 wet days 11 October: 8 wet days November: 8 wet days December: 11 wet days JFMAMJJASOND

Wet day: at least 0.01 in of rain or melted snow, counted from daily records 1991-2020.

How humid is League City?

Muggy days peak in July, at about 31 days.

January: 2 muggy days 2 February: 3 muggy days March: 7 muggy days April: 11 muggy days May: 23 muggy days June: 29 muggy days July: 31 muggy days 31 August: 31 muggy days September: 25 muggy days October: 15 muggy days November: 6 muggy days December: 4 muggy days JFMAMJJASOND

Muggy day: daily mean dew point of 65°F or higher, from hourly observations 1991-2020 at Ellington Field Airport, 8.7 mi NNW of the city center.

How much daylight?

Daylight ranges from about 10.3 hours in December to 14.0 hours in June.

January: 10.5 hours of daylight February: 11.2 hours of daylight March: 12.0 hours of daylight April: 12.9 hours of daylight May: 13.6 hours of daylight June: 14.0 hours of daylight 14.0 July: 13.8 hours of daylight August: 13.2 hours of daylight September: 12.3 hours of daylight October: 11.4 hours of daylight November: 10.7 hours of daylight December: 10.3 hours of daylight 10.3 JFMAMJJASOND
See all numbers
Monthly climate normals and day counts for League City, 1991-2020
MonthHighLowPrecip.Wet daysSnowMuggy daysDaylight
January 64°F46°F 4.8 in10 0.0 in 2 10.5 h
February 67°F50°F 3.0 in9 0.0 in 3 11.2 h
March 73°F56°F 3.3 in9 0.0 in 7 12.0 h
April 78°F61°F 4.2 in8 0.0 in 11 12.9 h
May 85°F69°F 5.1 in7 0.0 in 23 13.6 h
June 90°F75°F 6.5 in10 0.0 in 29 14.0 h
July 92°F76°F 4.4 in10 0.0 in 31 13.8 h
August 92°F76°F 6.6 in10 0.0 in 31 13.2 h
September 88°F72°F 7.3 in11 0.0 in 25 12.3 h
October 82°F63°F 5.8 in8 0.0 in 15 11.4 h
November 73°F53°F 4.5 in8 0.0 in 6 10.7 h
December 66°F47°F 4.5 in11 0.2 in 4 10.3 h

High and low: NOAA 1991-2020 normal daily high and low. Wet days: at least 0.01 in of rain or melted snow. Muggy days: daily mean dew point 65°F or higher.

Best months to visit League City

By our comfort score, the best months are March, April and November.

Comfort score by month (0-100) and its parts, in days per month
MonthScoreComfortableNotable rainHot or cold
Jan 571061
Feb 611150
Mar 651340
Apr 63940
May 54253
Jun 420714
Jul 370623
Aug 350723
Sep 401711
Oct 55762
Nov 621350
Dec 56960

Score = 40 × share of comfortable days + 25 × share of days without notable rain + 20 × share of days neither hot (90°F+) nor cold (high 40°F or below) + 15 × daylight. How the score works.

Frost dates in League City

The last spring frost typically comes around Jan 31, and the first fall frost around Dec 14, leaving 317 frost-free days in a typical year.

Frost and freeze dates for League City
Typical date1 year in 10
Last spring frost (32°F)Jan 31after Mar 5
First fall frost (32°F)Dec 14before Nov 19
Last hard freeze (28°F)Jan 17after Feb 24
First hard freeze (28°F)Jan 3before Dec 6
Frost-free season317 daysunder 279 days

"Typical" is the date with a 50% chance of a later spring frost (or earlier fall frost). Planting after the "1 year in 10" spring date gives a 90% chance of no further frost. The Old Farmer's Almanac publishes 30% dates, which fall between our typical and 1-in-10 dates.

Station: Houston Nwso (USC00414333), NOAA 1991-2020 freeze probabilities. Frost dates for every city in Texas.

Hottest and coldest readings, 1991-2020

The highest reading was 106°F (September 4, 2000); the lowest was 20°F (January 17, 2018, and 2 other days).

From the temperature station's daily records with NOAA quality flags removed. Not an all-time record.

Near League City

Similar climates elsewhere

Where the numbers come from

  • Temperature, rain, snowfall, snow depth and frost dates: Houston Nwso (USC00414333), 2.6 mi SSE of the city center, 19 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: Houston Intercont Airport (USW00012960), 36 mi NNW of the city center, 95 ft (76 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Ellington Field Airport (722436-12906), 8.7 mi NNW of the city center, 32 ft . Hourly observations, 1991-2020.

Distances from the city center (USGS). Methodology · Report an error