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Oak Grove climate

Typical historical weather for Oak Grove, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.

Data last updated: 31 December 2025

Want today's actual conditions instead? See the current forecast for Oak Grove. Planning a garden? See the gardening & growing season planner. Or browse the 365-day climate calendar.

Oak GroveUnited States1:32 PM localChange location
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Annual average

18.4°C

across all months

Warmest month

32.1°C

Jul average high

Coolest month

4°C

Jan average low

Annual rainfall

1186mm

total per year

Oak Grove is typically hottest in July and coolest in January, a swing of about 28.1°C across the year. About 34% of annual rainfall falls in the three wettest months (August is typically wettest, November driest).

Monthly averages

Average daily high/low temperature (band) and monthly rainfall (bars).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high Avg low Rainfall
MonthAvg highAvg lowRainfallWet daysHumidityWindCloudSolar
Jan13.1°C · record 18.2°C25.3°C4°C · record -7.4°C-1.3°C96mm1068%3.3 m/s52%2.8 kWh/m²
Feb16.5°C · record 22.6°C26.1°C6.6°C · record -4°C0.4°C83mm968%3.3 m/s58%3.2 kWh/m²
Mar19.5°C · record 25.3°C28.3°C9.3°C · record -2.5°C2.9°C91mm962%3.4 m/s56%4.5 kWh/m²
Apr23.4°C · record 27.7°C30.9°C13°C · record 1.4°C6.8°C97mm863%3.4 m/s50%5.8 kWh/m²
May27°C · record 30.4°C35.7°C17.9°C · record 7.9°C14.2°C108mm1169%2.9 m/s58%5.9 kWh/m²
Jun30.3°C · record 31.8°C37°C21.8°C · record 12°C20.2°C84mm1271%2.6 m/s60%6.2 kWh/m²
Jul32.1°C · record 33.6°C37.7°C23.9°C · record 18.5°C22.7°C136mm1774%2.4 m/s60%6.1 kWh/m²
Aug30.8°C · record 33.7°C37.3°C23°C · record 16.5°C22.5°C150mm1677%2.3 m/s60%5.3 kWh/m²
Sep29°C · record 31.5°C35.9°C20.3°C · record 11.4°C20.6°C86mm974%2.6 m/s48%4.9 kWh/m²
Oct24.3°C · record 27.1°C35.8°C14.4°C · record 2.4°C9°C71mm773%2.8 m/s42%4 kWh/m²
Nov18.6°C · record 23.4°C27°C8.5°C · record -2.2°C2.5°C71mm870%2.9 m/s47%3 kWh/m²
Dec14.5°C · record 20.5°C25.4°C5.6°C · record -9.9°C1.3°C113mm1072%3 m/s56%2.3 kWh/m²

"Avg high"/"Avg low" is the mean daily high/low for that month, averaged across every year on file. The "record" figure alongside it is a different statistic — the single hottest (or coldest) hour ever recorded during that month across all years — so it can sit above or below the average and does not describe the average's year-to-year spread. A "wet day" is any day with at least 1.0mm of rain.

Year to year

Annual average temperature, 2016–2025.

20162018202020222024

Across these 10 years, the annual average has moved by about -0.8°C per decade. That’s a short window for a reliable long-term climate trend — treat it as indicative, not definitive.

Annual rainfall has moved by about -54.83mm per decade over the same period.

2025 (the most recent year on file) averaged 18°C, below the 9-year baseline of 18.5°C by 1.74 standard deviations.

Typical extremes per year

Rainy days

123.8 days

≥1.0mm rain

Heavy rain days

15.2 days

≥20mm rain

Extreme heat days

0 days

daily high ≥40°C

Frost days

13.4 days

daily low ≤0°C

Averaged across 10 years on file. Thresholds match PastClimate's data pipeline definitions — see data & sources.

Records on file

Ranked across 10 years of data currently on file (2016–2025).

Hottest day

37.7°C

8 July 2016

2016 was 0.6 SD above the 9-year average that year

Coldest day

-9.9°C

24 December 2022

2022 was 1.16 SD below the 9-year average that year

Wettest day

118.6mm

7 November 2024

2024 was 1.05 SD below the 9-year average that year

Windiest day

9.7m/s

11 September 2017

2017 was 1.22 SD above the 9-year average that year

See the detail: Oak Grove on 7 November 2024.

Frequently asked questions about Oak Grove's climate

What is the hottest month in Oak Grove?

July is typically the warmest month in Oak Grove, with an average high of 32.1°C. January is typically the coolest, averaging 4°C overnight.

How much does it rain in Oak Grove?

Oak Grove gets about 1186mm of rain a year on average, with roughly 34% of it falling in the three wettest months (August is typically the wettest, November the driest).

How many extremely hot or cold days does Oak Grove have?

On average, Oak Grove sees about 0 day(s) a year at or above 40°C and about 13.4 day(s) at or below 0°C, based on 10 years of data.

Is Oak Grove getting warmer?

Across the 10 years on file (2016–2025), the annual average temperature has moved by about -0.78°C per decade. That's a short window for a reliable long-term climate trend — treat it as indicative, not definitive.

What is the hottest day on record for Oak Grove?

The hottest day on file is 8 July 2016 at 37.7°C, out of 10 year(s) searched.

Data & provenance

↓ Download monthly CSV
Data source & coverage — ERA5 reanalysis, 2016–2025 (10 years)details
Source
ERA5 reanalysis, accessed via the Copernicus Climate Change Service (C3S) Climate Data Store
Data type
Reanalysis — a physically consistent reconstruction combining a forecast model with historical observations, not a live station reading or a forecast
Coverage
2016–2025 (10 years) for United States
Location
Oak Grove — 34.000°, -81.250°, ERA5 grid cell center, 10.1 km from requested point
Time zone
America/New_York
What's shown here
Monthly and annual averages, and dated extreme-value records, derived from an hourly base record.
Spatial resolution
0.25° (~25 km) distributed grid — ERA5's native model resolution is finer; this is the publicly distributed regridded product
Version / refreshed
Methodology v2026.07 · data last refreshed December 31, 2025
Limitations
A model reconstruction, not a station observation — hyper-local extremes (a single storm cell, an urban heat pocket) can differ from a nearby gauge. See the full methodology.
Attribution
Generated using Copernicus Climate Change Service information

Cite this data

Plain text
PastClimate (2026-07-20). Historical climate data for Oak Grove, United States (34.00°N, 81.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
APA
PastClimate. (2026). Historical climate data for Oak Grove, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Oak Grove, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 20, 2026, www.pastclimate.com.
BibTeX
@misc{pastclimate,
  author = {PastClimate},
  title = {Historical climate data for Oak Grove, United States},
  year = {2026},
  note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-20},
  url = {https://www.pastclimate.com/}
}

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