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Mountain Green climate
Typical historical weather for Mountain Green, 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 Mountain Green. Planning a garden? See the gardening & growing season planner.
Annual average
7.5°C
across all months
Warmest month
30.1°C
Jul average high
Coolest month
-9.2°C
Dec average low
Annual rainfall
673mm
total per year
Mountain Green is typically hottest in July and coolest in December, a swing of about 39.3°C across the year. About 36% of annual rainfall falls in the three wettest months (January is typically wettest, July 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 | 0°C · record 3.3–9.7°C | -8.6°C · record -23.4–-12.2°C | 83mm | 13 | 79% | 1.3 m/s | 63% | 2.4 kWh/m² |
| Feb | 1.9°C · record 4.9–12.3°C | -7.1°C · record -22.4–-11.8°C | 77mm | 13 | 73% | 1.5 m/s | 58% | 3.5 kWh/m² |
| Mar | 6.6°C · record 10.2–18.8°C | -3.1°C · record -16.6–-8.3°C | 82mm | 15 | 69% | 1.7 m/s | 61% | 5 kWh/m² |
| Apr | 10.7°C · record 16.3–23.4°C | -1.3°C · record -12.9–-3.4°C | 67mm | 11 | 64% | 1.8 m/s | 53% | 6.4 kWh/m² |
| May | 17°C · record 22.2–28.6°C | 3.4°C · record -6.2–-1.5°C | 66mm | 12 | 62% | 1.9 m/s | 50% | 7.3 kWh/m² |
| Jun | 24.7°C · record 26.4–34.1°C | 8.9°C · record -1.5–4.5°C | 26mm | 6 | 49% | 2 m/s | 35% | 8.2 kWh/m² |
| Jul | 30.1°C · record 32.6–35.3°C | 13.2°C · record 4.1–11.9°C | 14mm | 5 | 40% | 1.9 m/s | 30% | 8 kWh/m² |
| Aug | 28.4°C · record 32.2–35.2°C | 12°C · record 4.4–9.4°C | 34mm | 7 | 44% | 1.8 m/s | 31% | 7 kWh/m² |
| Sep | 23.3°C · record 28.5–35.2°C | 7.5°C · record -3.4–2.8°C | 41mm | 6 | 48% | 1.8 m/s | 28% | 5.7 kWh/m² |
| Oct | 14.4°C · record 19.1–27.2°C | 0.8°C · record -18.2–-2.4°C | 54mm | 8 | 58% | 1.7 m/s | 37% | 4 kWh/m² |
| Nov | 6.9°C · record 12.8–19.5°C | -5°C · record -20.7–-5.6°C | 54mm | 9 | 67% | 1.4 m/s | 51% | 2.7 kWh/m² |
| Dec | 1.1°C · record 5.4–12.3°C | -9.2°C · record -22.1–-13.6°C | 74mm | 11 | 77% | 1.3 m/s | 63% | 2.1 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 +0.49°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 -88.8mm per decade over the same period.
2025 (the most recent year on file) averaged 8.36286678575492°C, above the 9-year baseline of 7.43°C by 1.62 standard deviations.
Typical extremes per year
Rainy days
116 days
≥1.0mm rain
Heavy rain days
2.7 days
≥20mm rain
Extreme heat days
0 days
daily high ≥40°C
Frost days
173.3 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
35.3°C
11 July 2024
2024 was 1.33 SD above the 9-year average that year
Coldest day
-23.4°C
6 January 2017
2017 was 0.12 SD below the 9-year average that year
Wettest day
34.5mm
17 November 2017
2017 was 0.12 SD below the 9-year average that year
Windiest day
5.4m/s
8 September 2020
2020 was 0.4 SD below the 9-year average that year
See the detail: Mountain Green on 17 November 2017.
Nearby cities
Ogden
20.9 km away
Roy
20.9 km away
Clinton
20.9 km away
North Ogden
20.9 km away
South Ogden
20.9 km away
West Haven
20.9 km away
Want a side-by-side view instead? Compare Mountain Green with another city.
Frequently asked questions about Mountain Green's climate
What is the hottest month in Mountain Green?
July is typically the warmest month in Mountain Green, with an average high of 30.1°C. December is typically the coolest, averaging -9.2°C overnight.
How much does it rain in Mountain Green?
Mountain Green gets about 673mm of rain a year on average, with roughly 36% of it falling in the three wettest months (January is typically the wettest, July the driest).
How many extremely hot or cold days does Mountain Green have?
On average, Mountain Green sees about 0 day(s) a year at or above 40°C and about 173.3 day(s) at or below 0°C, based on 10 years of data.
Is Mountain Green getting warmer?
Across the 10 years on file (2016–2025), the annual average temperature has moved by about +0.49°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 Mountain Green?
The hottest day on file is 11 July 2024 at 35.3°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
- Mountain Green — 41.250°, -111.750°, ERA5 grid cell center, 12.4 km from requested point
- Time zone
- America/Denver
- 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 (2026-07-17). Historical climate data for Mountain Green, United States (41.25°N, 111.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Mountain Green, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Mountain Green, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Mountain Green, 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/}
}Notice something wrong with this data? Report a data issue.