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Plum Grove, TX Weather
Plum Grove, Texas sits at 30.2008, -95.0956. Its warmest month is August, when the day usually reaches 93F, and its coldest is January, when the night usually falls to 43F. January is the wettest, with rain on about 11 days. The hottest day in the station record is 109F on July 14, 1982, and the coldest night 7F on December 24, 1989. This page carries live conditions, an hour by hour timeline, a ten day outlook, radar, monthly averages and searchable daily history back to 1940.
About Plum Grove weather
Plum Grove sits at 30.2008, -95.0956 and covers about 3.627 square miles. The forecast above is live: current conditions lead with the HRRR model, corrected against the nearest reporting station and against radar overhead, because a model can lag a storm and the radar cannot.
The tabs at the top of this page carry the hour by hour timeline, the ten day outlook and live radar. Where the models disagree about a day, the rock says so on the day rather than quietly picking a winner.
The rock grades itself against what actually happened and publishes the result whether it flatters it or not. Those standings live in the Receipts.
Where these numbers come from
Current conditions and forecast: NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
Radar: NOAA MRMS merged reflectivity, rendered into tiles by myweatherrock.
Monthly averages and records: computed by myweatherrock from NOAA GHCN-Daily station records at the nearest qualifying station, named on this page with its distance. Measurements, not estimates.
Daily history search: the town's own NOAA GHCN-Daily station file, held on our server, measurements by day. Months the station missed fall back to the Open-Meteo historical archive (reanalysis), and the page says so when it does.
What the weather is usually like in Plum Grove
Plum Grove is warmest in August, when the day usually reaches 93F, and coldest in January, when the night usually falls to 43F. January is the wettest month, with rain on about 11 days of it.
Usual high and low, by month
Days with rain, by month
The same year as numbers
Month
Usual high
Usual low
Rain days
January
63F
43F
11
February
67F
47F
9
March
72F
54F
9
April
78F
60F
8
May
84F
68F
8
June
90F
74F
10
July
92F
76F
10
August
93F
76F
11
September
88F
71F
10
October
82F
61F
7
November
72F
52F
8
December
65F
45F
10
Thirty-year normals, 1991 to 2020, computed from the daily record, measured at the Baytown station 20.8 miles away. A rain day means at least a hundredth of an inch fell, the same measurable-precipitation mark the Weather Service uses. Source: computed from the station record, NOAA GHCN daily.
Plum Grove weather history, back to 1940
Pick any month back to 1940 and see what the archive holds for Plum Grove: the reanalysis record of what happened, day by day.
Reading this month last year to start you off.
Plum Grove weather records
In 94,136 days of observations Plum Grove has been as hot as 109F and as cold as 7F. Not averages: the actual days.
Hottest day
109F
July 14, 1982
Coldest night
7F
December 24, 1989
Wettest day
16.57 in
August 27, 2017
Biggest snow
4.5 in
February 12, 1960
NOAA GHCN daily station records, observed 1946 to 2026: temperature at the Baytown station, 20.8 miles away. Station measurements, not estimates. Record dates reflect the station's own observation schedule, and the official state record may live at a different station.
Common questions about Plum Grove weather
Common questions
What is the weather usually like in Plum Grove, TX?
Plum Grove is warmest in August, when the day usually reaches 93F, and coldest in January, when the night usually falls to 43F. Rain falls on roughly 111 days a year, most often in January. Averages are thirty-year normals, 1991 to 2020, computed from the nearest NOAA station's own daily record.
How much does it rain in Plum Grove, TX?
About 111 days a year see at least a hundredth of an inch, which is the Weather Service's measurable-precipitation mark. January is the wettest month with rain on about 11 of its days, and October the driest with about 7.
What is the hottest it has ever been in Plum Grove, TX?
The hottest day measured for Plum Grove reached 109F on July 14, 1982, and the coldest night 7F on December 24, 1989. Both are real NOAA station measurements from the GHCN daily archive, observed 1946 to 2026, at the Baytown station. Not estimates, though the official state record may live at a different station.
Can I look up past weather for Plum Grove, TX?
Yes, and for free. The History tab on this page takes any month back to 1940 and shows every day of it: the high, the low, what fell, and that month's hottest and coldest day. No account and no payment.
Is the Plum Grove forecast on this page free, and does it track me?
It is free, carries no advertising, and needs no account. Nothing about a visitor leaves the device except the coordinates needed to fetch a forecast, and those are not stored against anyone.