Climate averages 1991–2020

The Woodlands weather
in May.

A hot, wet month: the 5th warmest and the 8th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 29.4°C Daytime mean, May
Average low 20.0°C Night-time mean, May
Rainfall 104 mm 11 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in The Woodlands · average highYear overview

May is a hot month in The Woodlands: daytime highs average 29.4°C and nights cool to about 20.0°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 104 mm of rain on roughly 11 days, which makes May a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 39 min on an average May day.

The nearest other city in this atlas is Cypress (29 km away). In May its highs average 29.4°C, about as warm as The Woodlands, with 99 mm of rain.

Among the 498 cities listed in the United States, The Woodlands ranks joint 42nd of 498 for the warmest May highs and joint 378th of 498 for the driest May (rainfall, lowest first). The mean May high of those 498 cities is 23.8°C; The Woodlands is 5.6°C warmer than that mean.

From May to June, average highs rise by 2.8°C to 32.2°C, and monthly rainfall rises from 104 mm to 113 mm.

The annual picture

May in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 0510152025303540 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

The Woodlands climate table

1991–2020
Monthly climate averages for The Woodlands, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 16.1°C7.0°C7.0°C1009.710.410 h
February 18.3°C8.8°C8.8°C839.111.111 h
March 21.7°C12.0°C12.0°C919.512.012 h
April 25.5°C15.6°C15.6°C1069.012.913 h
May, selected 29.4°C20.0°C20.0°C10410.713.714 h
June 32.2°C23.1°C23.1°C11312.414.114 h
July 33.5°C24.2°C24.2°C8111.113.914 h
August 34.0°C24.3°C24.3°C8811.413.213 h
September 31.1°C21.8°C21.8°C10010.012.412 h
October 26.7°C17.0°C17.0°C1078.611.511 h
November 20.9°C11.7°C11.7°C988.610.711 h
December 17.0°C8.1°C8.1°C1069.810.210 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

May in nearby cities

Distance from The Woodlands

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for The Woodlands) is explained once on the The Woodlands year overview and on the Sources, method and limits page.