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Pomeroy, OH Weather
Pomeroy, Ohio sits at 39.0347, -82.0324. Its warmest month is July, when the day usually reaches 87F, and its coldest is January, when the night usually falls to 23F. January is the wettest, with rain on about 12 days. The hottest day in the station record is 113F on July 21, 1934, and the coldest night -28F on January 19, 1994. 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 Pomeroy weather
Pomeroy sits at 39.0347, -82.0324 and covers about 3.282 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 Pomeroy
Pomeroy is warmest in July, when the day usually reaches 87F, and coldest in January, when the night usually falls to 23F. January is the wettest month, with rain on about 12 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
Snow days
January
42F
23F
12
2
February
47F
26F
11
1
March
56F
33F
12
0
April
68F
42F
12
0
May
76F
52F
12
0
June
84F
62F
11
0
July
87F
66F
10
0
August
86F
64F
8
0
September
81F
57F
8
0
October
69F
45F
9
0
November
57F
34F
10
0
December
46F
28F
12
1
Thirty-year normals, 1991 to 2020, computed from the daily record, measured at the Gallipolis station 16.8 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.
Pomeroy weather history, back to 1940
Pick any month back to 1940 and see what the archive holds for Pomeroy: the reanalysis record of what happened, day by day.
Reading this month last year to start you off.
Pomeroy weather records
In 133,476 days of observations Pomeroy has been as hot as 113F and as cold as -28F. Not averages: the actual days.
Hottest day
113F
July 21, 1934
Coldest night
-28F
January 19, 1994
Wettest day
4.04 in
June 29, 1998
Biggest snow
14.0 in
March 14, 1993
NOAA GHCN daily station records, observed 1928 to 2026: temperature at the Gallipolis station, 16.8 miles away; precipitation at the Racine Locks and Dam station, 10.3 miles away; snowfall at the Salem Ctr 2 E station, 14.1 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 Pomeroy weather
Common questions
What is the weather usually like in Pomeroy, OH?
Pomeroy is warmest in July, when the day usually reaches 87F, and coldest in January, when the night usually falls to 23F. Rain falls on roughly 127 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 Pomeroy, OH?
About 127 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 12 of its days, and August the driest with about 8.
Does it snow in Pomeroy, OH?
Yes. Snow falls on about 4 days a year, most often in January, which averages about 2 snowy days. Those are days with measurable snowfall, not days with snow lying on the ground.
What is the hottest it has ever been in Pomeroy, OH?
The hottest day measured for Pomeroy reached 113F on July 21, 1934, and the coldest night -28F on January 19, 1994. Both are real NOAA station measurements from the GHCN daily archive, observed 1928 to 2026, at the Gallipolis station. Not estimates, though the official state record may live at a different station.
Can I look up past weather for Pomeroy, OH?
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 Pomeroy 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.