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Weather on May 15

Houston, TX

55 Years of Data

Avg High
85°F
Avg Low
68°F
Warmest
2025
85°F avg
Coldest
2014
64°F avg

About This Date

May 15th in Houston, TX typically brings warm spring weather, with average highs around 85°F and lows near 68°F. Over 56 years of records, the warmest May 15th was in 2025 (85°F average), while the coldest was 2014 (64°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 21% of May 15th dates historically, with the wettest May 15th recording 6.22" of rain. Temperatures on this date have remained relatively stable over the past several decades.

Temperatures on this date have remained relatively stable over the past several decades.

Planning for May 15th in Houston, TX? Stay hydrated and seek shade during peak afternoon hours.

Warming Trend
0.7°F per decade on this date
YearHighLowAvgPrecipSnow
202690°70°80°
2025warmest94°76°85°
202492°67°79°
202389°73°81°
202292°69°80°
202185°66°75°
202088°70°79°3.18"
201985°68°76°
201891°67°79°
201786°62°74°
201684°69°77°0.43"
201583°74°78°0.84"
2014coldest78°50°64°
201385°63°74°
201286°65°75°1.78"
201181°57°69°
201079°68°73°1.68"
200988°74°81°
200885°69°77°1.02"
200792°65°78°6.22"
200685°66°75°0.64"
200588°69°78°
200484°64°74°
200390°75°82°
200284°65°74°
200188°67°77°
200086°65°75°
199989°75°82°
199889°76°82°
199783°68°75°
199686°73°80°
199591°77°84°
199484°67°75°
199388°65°76°
199282°74°78°
199190°68°79°
199084°74°79°
198984°70°77°0.15"
198885°67°76°
198783°69°76°
198678°71°75°0.15"
198580°68°74°
198488°70°79°
198373°58°65°1.04"
198282°72°77°
198174°64°69°
198080°73°77°0.89"
197984°66°75°
197892°68°80°
197781°71°76°
197684°65°74°
197574°62°68°
197481°76°78°
197380°58°69°
197285°68°76°
197185°63°74°
56 years of data from HOUSTON WB CITY

Houston, TX Temperature Range by Month

Average monthly highs and lows. The shaded band shows the typical daily temperature range.

40°50°60°70°80°90°100°JFMAMJJASOND
Avg high Avg low

Houston, TX Monthly Precipitation

Average rainfall and snowfall per month, in inches.

0"10.3"20.5"JFMAMJJASOND2.1"0"
Rain (in) Snow (in)

Houston, TX Daily Temperature Calendar

Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.

151015202531JanFebMarAprMayJunJulAugSepOctNovDec
Cooler
Hotter
20°40°60°80°100°

Best Time to Visit Houston, TX

Houston, TX has no months that meet our "pleasant" threshold — every season has tradeoffs.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal

Browse Weather History

Weather data provided by NOAA Climate Data Online. Not for critical planning.

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