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Galveston, Tx Climate & Temperature

  • Galveston, Tx, Usa is at 29°18'N, 94°47'W, 16 m (52 ft). See map.
  • Galveston, Tx has a humid subtropical climate that is mild with no dry season, constantly moist (year-round rainfall). Summers are hot and muggy with thunderstorms. Winters are mild with precipitation from mid-latitude cyclones. Seasonality is moderate. (Köppen-Geiger classification: Cfa).
  • The mean temperature is 20.9 degrees Celsius (69.6 degrees Fahrenheit). See the temperatures page for a monthly breakdown and the fixed scale graph.
  • Average monthly temperatures vary by 17.1 °C (30.8°F). This indicates that the continentality type is oceanic, subtype truly oceanic. Galveston, Tx Climate Graph
  • In the winter time records indicate temperatures by day reach 15.7°C (60.2°F) on average falling to 9.6°C (49.3°F) overnight.
  • In spring time temperatures climb reaching 23°C (73.4°F) generally in the afternoon with overnight lows of 18°C (64.5°F).
  • During summer average high temperatures are 30.3°C (86.6°F) and average low temperatures are 25.8°C (78.5°F).
  • Come autumn/ fall temperatures decrease achieving average highs of 25.1°C (77.1°F) during the day and lows of 19.7°C (67.5°F) generally shortly after sunrise.
  • Total annual Precipitation averages 1073.8 mm (42.3 inches) which is equivalent to 1073.8 Litres/m² (26.34 Gallons/ft²).
  • Were you to burrow down through the centre of the Earth from Galveston, Tx you would pop up nearest to the climate station at Amsterdam Island, French Southern Lands where you would find a Marine west coast climate.

Galveston, Tx Climate Table

  Climate Variable Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
 
Average Max Temperature °C ( °F) 15 (58) 16 (60) 19 (67) 23 (74) 27 (80) 29 (85) 31 (87) 31 (88) 29 (85) 25 (78) 21 (69) 17 (62) 24 (74)
 
Average Temperature °C ( °F) 12 (53) 13 (55) 17 (62) 21 (69) 24 (76) 27 (81) 29 (83) 29 (83) 27 (80) 23 (73) 18 (64) 14 (56) 21 (70)
 
Average Min Temperature °C ( °F) 8 (47) 10 (50) 14 (57) 18 (65) 22 (72) 25 (77) 26 (79) 26 (79) 24 (75) 20 (68) 15 (59) 11 (51) 18 (65)
 
Average Precipitation mm (in) 83 (3) 57 (2) 57 (2) 62 (2) 91 (4) 113 (4) 101 (4) 114 (4) 151 (6) 72 (3) 86 (3) 89 (4) 1074 (42)
Average Daylight Hours/ Day 10h 28' 11h 05' 11h 56' 12h 50' 13h 35' 13h 58' 13h 47' 13h 09' 12h 17' 11h 23' 10h 38' 10h 16' 12h 00'
Sun altitude at solar noon on the 21st day (°). 40.8 50.2 61.1 72.7 80.9 84.1 81 72.6 61.2 49.7 40.6 37.3 61

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