This reference page collects houston climate: monthly averages in one place: annual mean temperature 20.4 C; warmest month Aug (29.0 C); coldest month Jan (10.3 C); wettest month Jun (4.20 mm/day). Figures are refreshed automatically by a scheduled build and cached locally so the page keeps its values even when the upstream API is temporarily unavailable. Use the table below for exact numbers, or the related pages for the same dataset for neighbouring periods and locations.
Annual mean temperature 20.4 C
Warmest month Aug (29.0 C)
Coldest month Jan (10.3 C)
Wettest month Jun (4.20 mm/day)
All-time record high 42.6 C
All-time record low -7.8 C
Annual precipitation 1,245 mm / year
Coordinates 29.7604, -95.3698
Population 2,310,000
Average monthly temperature and rainfall in Houston
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
10.3
2.88
26.1
-7.8
Feb
12.5
2.46
29.8
-7.2
Mar
16.5
2.73
32.0
-5.1
Apr
20.4
2.91
36.2
1.2
May
24.6
3.83
38.6
6.3
Jun
28.0
4.20
41.9
17.1
Jul
28.5
3.56
40.9
18.9
Aug
29.0
4.03
42.6
16.6
Sep
26.2
3.93
40.8
10.5
Oct
21.4
4.13
35.6
2.2
Nov
15.9
3.14
31.1
-3.2
Dec
11.7
3.09
28.6
-4.3
What the Houston climate table shows
Values are multi-decadal climatological averages for the 29.7604, -95.3698 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
Where does the data on houston climate: monthly averages come from?
From a public open API that is queried automatically and cached after every successful run.
How often is houston climate: monthly averages updated?
The build runs on a schedule, so values refresh at least daily and old pages stay live.