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Fairmont climate
Typical historical weather for Fairmont, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.
Want today's actual conditions instead? See the current forecast for Fairmont. Planning a garden? See the gardening & growing season planner. Or browse the 365-day climate calendar.
Annual average
8.8°C
across all months
Warmest month
28°C
Jul average high
Coolest month
-11.9°C
Jan average low
Annual rainfall
979mm
total per year
Fairmont is typically hottest in July and coolest in January, a swing of about 39.9°C across the year. About 38% of annual rainfall falls in the three wettest months (June is typically wettest, February driest).
Monthly averages
Average daily high/low temperature (band) and monthly rainfall (bars).
| Month | Avg high | Avg low | Rainfall | Wet days | Humidity | Wind | Cloud | Solar |
|---|---|---|---|---|---|---|---|---|
| Jan | -3.7°C · record 2.8–14.5°C | -11.9°C · record -35–-18°C | 34mm | 6 | 78% | 4.7 m/s | 67% | 2 kWh/m² |
| Feb | -2°C · record 4.2–20.1°C | -11.7°C · record -32.6–-15.2°C | 33mm | 6 | 75% | 4.9 m/s | 60% | 3.2 kWh/m² |
| Mar | 6.6°C · record 8.9–26.9°C | -3°C · record -26.5–-8.9°C | 76mm | 9 | 69% | 4.9 m/s | 62% | 4.1 kWh/m² |
| Apr | 13.5°C · record 24.1–30.9°C | 2.8°C · record -15.1–-2.1°C | 103mm | 11 | 62% | 5.1 m/s | 61% | 5 kWh/m² |
| May | 21.4°C · record 29.6–35.3°C | 10.6°C · record 0.5–6.3°C | 127mm | 13 | 62% | 4.2 m/s | 57% | 5.7 kWh/m² |
| Jun | 27.4°C · record 31.1–36.2°C | 17°C · record 7.7–13.4°C | 131mm | 13 | 66% | 4 m/s | 49% | 6.6 kWh/m² |
| Jul | 28°C · record 31.4–35.4°C | 18.3°C · record 11.3–13.8°C | 107mm | 10 | 74% | 3.4 m/s | 44% | 6.6 kWh/m² |
| Aug | 26.4°C · record 29.2–36.9°C | 16.8°C · record 8.3–13.7°C | 114mm | 11 | 77% | 3.5 m/s | 47% | 5.6 kWh/m² |
| Sep | 24.5°C · record 29.4–35.7°C | 13.4°C · record 0.2–7.3°C | 92mm | 8 | 71% | 4.3 m/s | 44% | 4.5 kWh/m² |
| Oct | 15.9°C · record 24–33.6°C | 5.4°C · record -10.5–-0.8°C | 79mm | 9 | 66% | 4.8 m/s | 50% | 3.1 kWh/m² |
| Nov | 7.5°C · record 12.8–25.5°C | -2.1°C · record -16.7–-7.5°C | 40mm | 7 | 70% | 4.7 m/s | 56% | 2.1 kWh/m² |
| Dec | -0.2°C · record 4.7–18.9°C | -8.4°C · record -30.7–-9.1°C | 42mm | 7 | 76% | 4.6 m/s | 65% | 1.6 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.
Across these 10 years, the annual average has moved by about +0.95°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 -407.12mm per decade over the same period.
2025 (the most recent year on file) averaged 9.23016060084515°C, above the 9-year baseline of 8.88°C by 0.34 standard deviations.
Typical extremes per year
Rainy days
108.2 days
≥1.0mm rain
Heavy rain days
11.2 days
≥20mm rain
Extreme heat days
0 days
daily high ≥40°C
Frost days
140.5 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
36.9°C
22 August 2023
2023 was 0.73 SD above the 9-year average that year
Coldest day
-35°C
31 January 2019
2019 was 2.27 SD below the 9-year average that year
Wettest day
96mm
27 August 2021
2021 was 1.07 SD above the 9-year average that year
Windiest day
14.7m/s
24 February 2019
2019 was 2.27 SD below the 9-year average that year
See the detail: Fairmont on 27 August 2021.
Nearby cities
Madelia
27.8 km away
Estherville
34.3 km away
Saint James
34.3 km away
Lake Crystal
34.3 km away
Windom
40.2 km away
Blue Earth
40.2 km away
Want a side-by-side view instead? Compare Fairmont with another city.
Frequently asked questions about Fairmont's climate
What is the hottest month in Fairmont?
July is typically the warmest month in Fairmont, with an average high of 28°C. January is typically the coolest, averaging -11.9°C overnight.
How much does it rain in Fairmont?
Fairmont gets about 979mm of rain a year on average, with roughly 38% of it falling in the three wettest months (June is typically the wettest, February the driest).
How many extremely hot or cold days does Fairmont have?
On average, Fairmont sees about 0 day(s) a year at or above 40°C and about 140.5 day(s) at or below 0°C, based on 10 years of data.
Is Fairmont getting warmer?
Across the 10 years on file (2016–2025), the annual average temperature has moved by about +0.95°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 Fairmont?
The hottest day on file is 22 August 2023 at 36.9°C, out of 10 year(s) searched.
Data & provenance
↓ Download monthly CSVData 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
- Fairmont — 43.750°, -94.500°, ERA5 grid cell center, 11.3 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
PastClimate (2026-07-18). Historical climate data for Fairmont, United States (43.75°N, 94.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Fairmont, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Fairmont, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 18, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Fairmont, 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/}
}Notice something wrong with this data? Report a data issue.