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Sparta climate

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

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SpartaUnited States10:49 AM localChange location

Annual average

15.8°C

across all months

Warmest month

30.8°C

Jul average high

Coolest month

-0.2°C

Jan average low

Annual rainfall

1440mm

total per year

Sparta is typically hottest in July and coolest in January, a swing of about 31°C across the year. About 31% of annual rainfall falls in the three wettest months (February is typically wettest, September driest).

Monthly averages

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

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high Avg low Rainfall
MonthAvg highAvg lowRainfallWet daysHumidityWindCloudSolar
Jan8.2°C · record 15.7–22.8°C-0.2°C · record -21.1–-3.6°C134mm1369%3.3 m/s64%2.3 kWh/m²
Feb12.6°C · record 19.7–26.9°C3°C · record -11.2–-4.1°C174mm1467%3.4 m/s67%2.9 kWh/m²
Mar16.8°C · record 22.7–28.8°C6.2°C · record -8.5–-0.9°C134mm1360%3.5 m/s61%4.3 kWh/m²
Apr20.8°C · record 26.4–31°C10.1°C · record -1.8–2.8°C121mm1262%3.3 m/s58%5.4 kWh/m²
May24.9°C · record 28.5–33.2°C15.6°C · record 1.2–10.9°C125mm1570%2.7 m/s62%5.7 kWh/m²
Jun29.2°C · record 31.5–35.8°C19.6°C · record 12.1–15.8°C110mm1369%2.4 m/s58%6.2 kWh/m²
Jul30.8°C · record 33.8–36.7°C21.8°C · record 15.6–20.6°C130mm1773%2 m/s60%6 kWh/m²
Aug29.8°C · record 31.3–35.9°C20.6°C · record 11.4–18.4°C119mm1474%2 m/s56%5.5 kWh/m²
Sep27.9°C · record 30.4–35.4°C17.5°C · record 6.4–15.7°C84mm971%2.3 m/s45%4.7 kWh/m²
Oct22.5°C · record 26.3–35.5°C11.4°C · record -1.8–5°C88mm868%2.8 m/s45%3.8 kWh/m²
Nov15.7°C · record 20.5–28.6°C5°C · record -8–-0.5°C85mm966%3 m/s52%2.8 kWh/m²
Dec11.2°C · record 18.2–22.9°C2.4°C · record -17.1–-3.6°C135mm1270%3.2 m/s64%2 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 -0.31°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 -104.34mm per decade over the same period.

2025 (the most recent year on file) averaged 15.602576533626772°C, below the 9-year baseline of 15.85°C by 0.81 standard deviations.

Typical extremes per year

Rainy days

147.9 days

≥1.0mm rain

Heavy rain days

16.5 days

≥20mm rain

Extreme heat days

0 days

daily high ≥40°C

Frost days

50.4 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

36.7°C

9 July 2019

2019 was 1.46 SD above the 9-year average that year

Coldest day

-21.1°C

17 January 2024

2024 was 0.14 SD above the 9-year average that year

Wettest day

87.8mm

10 August 2023

2023 was 1.4 SD above the 9-year average that year

Windiest day

7.8m/s

9 January 2024

2024 was 0.14 SD above the 9-year average that year

See the detail: Sparta on 10 August 2023.

Frequently asked questions about Sparta's climate

What is the hottest month in Sparta?

July is typically the warmest month in Sparta, with an average high of 30.8°C. January is typically the coolest, averaging -0.2°C overnight.

How much does it rain in Sparta?

Sparta gets about 1440mm of rain a year on average, with roughly 31% of it falling in the three wettest months (February is typically the wettest, September the driest).

How many extremely hot or cold days does Sparta have?

On average, Sparta sees about 0 day(s) a year at or above 40°C and about 50.4 day(s) at or below 0°C, based on 10 years of data.

Is Sparta getting warmer?

Across the 10 years on file (2016–2025), the annual average temperature has moved by about -0.31°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 Sparta?

The hottest day on file is 9 July 2019 at 36.7°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
Sparta — 36.000°, -85.500°, ERA5 grid cell center, 8.8 km from requested point
Time zone
America/Chicago
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 (2026-07-17). Historical climate data for Sparta, United States (36.00°N, 85.50°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 Sparta, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Sparta, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
BibTeX
@misc{pastclimate,
  author = {PastClimate},
  title = {Historical climate data for Sparta, United States},
  year = {2026},
  note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-17},
  url = {https://www.pastclimate.com/}
}

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