Home / Chicopee / 23 December 2017
Chicopee
United States · 23 December 2017
← 22 December 201724 December 2017 →
Average
-1.4°C
low -3.8°C · high 2.9°C
Rainfall
13.3mm
rain recorded
Wind
1.8m/s
daily average
Humidity
93.2%
daily average
Cloud
91%
cover
Pressure
1014hPa
daily average
The temperature ranged from -3.8°C around 00:00 to 2.9°C around 23:00. Rain was recorded across 17 hours, from around 05:00 to 21:00 (13.3mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
39th percentile
Low temperature
43th percentile
Rainfall
89th percentile
Wind
15th percentile
A percentile of 100 means this was the hottest/wettest/windiest of the comparable days on file; 50 is right in the middle. This window's average temperature was 0.3°C, versus -1.4°C on this specific day.
Sun & daylight
Sunrise
07:16
Sunset
16:22
Day length
9h 5m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/New_York.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | -3.8°C | -7.7°C | 0 | 1.7 | NE | 88 | 1023 |
| 01:00 | 06:00 | -3.7°C | -7.7°C | 0 | 2 | NE | 89 | 1022 |
| 02:00 | 07:00 | -3.5°C | -7.3°C | 0.01 | 1.6 | NE | 90 | 1023 |
| 03:00 | 08:00 | -3.4°C | -7.1°C | 0.02 | 1.5 | NE | 92 | 1022 |
| 04:00 | 09:00 | -3.5°C | -7°C | 0.05 | 1.4 | NE | 93 | 1021 |
| 05:00 | 10:00 | -2.8°C | -6.2°C | 0.19 | 1.3 | NNE | 93 | 1021 |
| 06:00 | 11:00 | -2.6°C | -5.9°C | 0.2 | 1.2 | ENE | 94 | 1020 |
| 07:00 | 12:00 | -2.5°C | -5.9°C | 0.1 | 1.3 | E | 93 | 1020 |
| 08:00 | 13:00 | -2.5°C | -5.9°C | 0.31 | 1.3 | ENE | 93 | 1020 |
| 09:00 | 14:00 | -1.9°C | -5.6°C | 0.59 | 1.9 | E | 93 | 1018 |
| 10:00 | 15:00 | -2°C | -5.6°C | 0.94 | 1.8 | E | 95 | 1017 |
| 11:00 | 16:00 | -2°C | -5.5°C | 1.64 | 1.6 | ENE | 96 | 1015 |
| 12:00 | 17:00 | -1.5°C | -4.6°C | 2.38 | 1.2 | NE | 97 | 1013 |
| 13:00 | 18:00 | -1.3°C | -5°C | 2.49 | 2.2 | ENE | 97 | 1010 |
| 14:00 | 19:00 | -1.3°C | -4.8°C | 1.47 | 1.8 | ENE | 97 | 1007 |
| 15:00 | 20:00 | -1°C | -3.5°C | 1.26 | 0.4 | NE | 96 | 1006 |
| 16:00 | 21:00 | -1.6°C | -4.1°C | 0.29 | 0.2 | ENE | 96 | 1005 |
| 17:00 | 22:00 | -0.7°C | -3.4°C | 0.14 | 0.8 | W | 94 | 1005 |
| 18:00 | 23:00 | -1.1°C | -4.4°C | 0.23 | 1.6 | W | 95 | 1006 |
| 19:00 | 00:00 | -0.2°C | -4°C | 0.24 | 2.3 | W | 93 | 1007 |
| 20:00 | 01:00 | 1.9°C | -1.9°C | 0.44 | 2.8 | W | 93 | 1007 |
| 21:00 | 02:00 | 2.7°C | -1°C | 0.28 | 2.8 | WNW | 92 | 1008 |
| 22:00 | 03:00 | 2.8°C | -1.7°C | 0.07 | 3.9 | NW | 90 | 1009 |
| 23:00 | 04:00 | 2.9°C | -1.9°C | 0 | 4.4 | NW | 92 | 1011 |
Nearby cities
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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
- Chicopee — 42.250°, -72.500°, ERA5 grid cell center, 14.3 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 23 December 2017 specifically — not a monthly average. See the Chicopee climate overview for typical conditions.
- 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 (2026-07-20). Historical climate data for Chicopee, United States (42.25°N, 72.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Chicopee, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Chicopee, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 20, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Chicopee, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-20},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.