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Hampden climate
Typical historical weather for Hampden, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.
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Annual average
7.9°C
across all months
Warmest month
26.7°C
Jul average high
Coolest month
-9.8°C
Jan average low
Annual rainfall
1119mm
total per year
Hampden is typically hottest in July and coolest in January, a swing of about 36.5°C across the year. About 30% of annual rainfall falls in the three wettest months (December is typically wettest, September 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 | -1.1°C · record 4.4°C–12.3°C | -9.8°C · record -28.7°C–-17.7°C | 99mm | 10 | 73% | 3.5 m/s | 60% | 1.8 kWh/m² |
| Feb | 0.6°C · record 6.2°C–18°C | -9.6°C · record -27.8°C–-15.9°C | 78mm | 10 | 70% | 3.6 m/s | 60% | 2.7 kWh/m² |
| Mar | 4.9°C · record 10.2°C–18°C | -4°C · record -20.8°C–-9.4°C | 93mm | 11 | 66% | 3.8 m/s | 62% | 3.8 kWh/m² |
| Apr | 11.2°C · record 16°C–24.8°C | 1.6°C · record -10°C–-2.8°C | 110mm | 13 | 66% | 3.6 m/s | 64% | 4.6 kWh/m² |
| May | 18.1°C · record 22.9°C–33.9°C | 6.9°C · record -0.9°C–3.3°C | 84mm | 10 | 68% | 3.2 m/s | 65% | 5.5 kWh/m² |
| Jun | 23°C · record 27.4°C–37.2°C | 11.9°C · record 2.2°C–7.7°C | 91mm | 13 | 73% | 3 m/s | 61% | 5.8 kWh/m² |
| Jul | 26.7°C · record 30.4°C–34.6°C | 15.9°C · record 8.5°C–12.5°C | 82mm | 10 | 74% | 2.8 m/s | 59% | 5.8 kWh/m² |
| Aug | 25.8°C · record 26.9°C–35.7°C | 14.9°C · record 6.7°C–12.4°C | 85mm | 11 | 76% | 2.7 m/s | 56% | 5.1 kWh/m² |
| Sep | 21.7°C · record 25.2°C–31.5°C | 11.1°C · record 0.9°C–6°C | 75mm | 7 | 78% | 2.9 m/s | 55% | 4.1 kWh/m² |
| Oct | 15.3°C · record 18.4°C–29.7°C | 5.7°C · record -5.9°C–1.5°C | 107mm | 11 | 79% | 3.2 m/s | 59% | 2.7 kWh/m² |
| Nov | 7.3°C · record 13.3°C–23.9°C | -0.9°C · record -16.8°C–-4.3°C | 96mm | 11 | 75% | 3.5 m/s | 56% | 1.8 kWh/m² |
| Dec | 1.1°C · record 9.6°C–15.3°C | -7.1°C · record -25.7°C–-11.4°C | 120mm | 12 | 75% | 3.5 m/s | 59% | 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.
Across these 10 years, the annual average has moved by about +0.5°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 -12.52mm per decade over the same period.
2025 (the most recent year on file) averaged 7.4°C, below the 9-year baseline of 8°C by 1.27 standard deviations.
Typical extremes per year
Rainy days
126.8 days
≥1.0mm rain
Heavy rain days
13.2 days
≥20mm rain
Extreme heat days
0 days
daily high ≥40°C
Frost days
137.7 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
37.2°C
24 June 2025
2025 was 1.27 SD below the 9-year average that year
Coldest day
-28.7°C
27 January 2022
2022 was 0.59 SD above the 9-year average that year
Wettest day
62mm
9 July 2021
2021 was 0.99 SD above the 9-year average that year
Windiest day
8.7m/s
18 December 2023
2023 was 1.02 SD above the 9-year average that year
See the detail: Hampden on 9 July 2021.
Nearby cities
Bangor
Same ERA5 grid cell
Brewer
Same ERA5 grid cell
Orrington
Same ERA5 grid cell
Holden
Same ERA5 grid cell
Eddington
Same ERA5 grid cell
Hermon
19.7 km away
Want a side-by-side view instead? Compare Hampden with another city.
Frequently asked questions about Hampden's climate
What is the hottest month in Hampden?
July is typically the warmest month in Hampden, with an average high of 26.7°C. January is typically the coolest, averaging -9.8°C overnight.
How much does it rain in Hampden?
Hampden gets about 1119mm of rain a year on average, with roughly 30% of it falling in the three wettest months (December is typically the wettest, September the driest).
How many extremely hot or cold days does Hampden have?
On average, Hampden sees about 0 day(s) a year at or above 40°C and about 137.7 day(s) at or below 0°C, based on 10 years of data.
Is Hampden getting warmer?
Across the 10 years on file (2016–2025), the annual average temperature has moved by about +0.46°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 Hampden?
The hottest day on file is 24 June 2025 at 37.2°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
- Hampden — 44.750°, -68.750°, ERA5 grid cell center, 6.9 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
PastClimate (2026-07-19). Historical climate data for Hampden, United States (44.75°N, 68.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Hampden, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 19, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Hampden, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 19, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Hampden, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-19},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.