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Saint Augusta climate

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

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Saint AugustaUnited States3:08 PM localChange location

Annual average

7.5°C

across all months

Warmest month

27.9°C

Jul average high

Coolest month

-13.4°C

Jan average low

Annual rainfall

854mm

total per year

Saint Augusta is typically hottest in July and coolest in January, a swing of about 41.3°C across the year. About 37% of annual rainfall falls in the three wettest months (August is typically wettest, January driest).

Monthly averages

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

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high Avg low Rainfall
MonthAvg highAvg lowRainfallWet daysHumidityWindCloudSolar
Jan-5.4°C · record 1.6°C11.4°C-13.4°C · record -34.6°C-21.5°C22mm577%3.5 m/s69%1.8 kWh/m²
Feb-3.4°C · record 0.8°C15.6°C-13°C · record -33.3°C-18.1°C24mm672%3.7 m/s60%3 kWh/m²
Mar4.7°C · record 4.7°C23.2°C-4.4°C · record -27°C-10.5°C54mm867%3.9 m/s63%4 kWh/m²
Apr11°C · record 20.5°C28.6°C1.3°C · record -16.7°C-1.7°C93mm1265%4.1 m/s64%4.8 kWh/m²
May20.4°C · record 26.8°C35.6°C9.6°C · record -0.5°C4.7°C91mm1161%3.6 m/s55%5.9 kWh/m²
Jun26.4°C · record 29.3°C38.5°C16°C · record 6.8°C12.1°C88mm1163%3.6 m/s53%6.6 kWh/m²
Jul27.9°C · record 31.9°C35.1°C17.7°C · record 10°C13.5°C96mm1070%3 m/s44%6.5 kWh/m²
Aug26°C · record 29.2°C35.6°C16.3°C · record 8.4°C11.6°C128mm1274%3.1 m/s49%5.4 kWh/m²
Sep22.8°C · record 27°C36.6°C12.6°C · record 0.3°C6.8°C92mm1073%3.6 m/s48%4.2 kWh/m²
Oct13.7°C · record 23.4°C31.7°C4.8°C · record -12.9°C-0.1°C78mm971%4 m/s57%2.8 kWh/m²
Nov4.9°C · record 7.4°C23.7°C-3°C · record -16.9°C-10.3°C41mm774%3.8 m/s62%1.8 kWh/m²
Dec-2.5°C · record 2.9°C11.1°C-10.1°C · record -31.4°C-11°C47mm778%3.7 m/s71%1.4 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 +0.6°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 -59.2mm per decade over the same period.

2025 (the most recent year on file) averaged 7.7°C, above the 9-year baseline of 7.6°C by 0.07 standard deviations.

Typical extremes per year

Rainy days

107.7 days

≥1.0mm rain

Heavy rain days

8.6 days

≥20mm rain

Extreme heat days

0 days

daily high ≥40°C

Frost days

149.8 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

38.5°C

5 June 2021

2021 was 0.82 SD above the 9-year average that year

Coldest day

-34.6°C

30 January 2019

2019 was 2.49 SD below the 9-year average that year

Wettest day

60mm

12 September 2019

2019 was 2.49 SD below the 9-year average that year

Windiest day

9m/s

7 March 2017

2017 was 0.05 SD above the 9-year average that year

See the detail: Saint Augusta on 12 September 2019.

Frequently asked questions about Saint Augusta's climate

What is the hottest month in Saint Augusta?

July is typically the warmest month in Saint Augusta, with an average high of 27.9°C. January is typically the coolest, averaging -13.4°C overnight.

How much does it rain in Saint Augusta?

Saint Augusta gets about 854mm of rain a year on average, with roughly 37% of it falling in the three wettest months (August is typically the wettest, January the driest).

How many extremely hot or cold days does Saint Augusta have?

On average, Saint Augusta sees about 0 day(s) a year at or above 40°C and about 149.8 day(s) at or below 0°C, based on 10 years of data.

Is Saint Augusta getting warmer?

Across the 10 years on file (2016–2025), the annual average temperature has moved by about +0.61°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 Saint Augusta?

The hottest day on file is 5 June 2021 at 38.5°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
Saint Augusta — 45.500°, -94.250°, ERA5 grid cell center, 6.2 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 (2026-07-18). Historical climate data for Saint Augusta, United States (45.50°N, 94.25°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 Saint Augusta, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Saint Augusta, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 18, 2026, www.pastclimate.com.
BibTeX
@misc{pastclimate,
  author = {PastClimate},
  title = {Historical climate data for Saint Augusta, United States},
  year = {2026},
  note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-18},
  url = {https://www.pastclimate.com/}
}

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