Home / Worcester / 13 December 2018
Worcester
United States · 13 December 2018
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Average
-4.5°C
low -8.3° · high -1.1°
Rainfall
0.1mm
dry day
Wind
1.8m/s
daily average
Humidity
59%
daily average
Cloud
87%
cover
Pressure
1033hPa
daily average
The temperature ranged from -8.3°C around 05:00 to -1.1°C around 14:00. No measurable rain was recorded during the day.
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
14th percentile
Low temperature
19th percentile
Rainfall
46th percentile
Wind
3th 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 -4.5°C on this specific day.
Sun & daylight
Sunrise
07:07
Sunset
16:15
Day length
9h 8m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/New_York.
Cumulative rainfall through the day.
| Local time | UTC | Temp °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | -6.8 | -11.7 | 0 | 2.2 | NE | 45 | 1028 |
| 01:00 | 06:00 | -7.2 | -12.5 | 0 | 2.6 | ENE | 46 | 1028 |
| 02:00 | 07:00 | -7.2 | -12.2 | 0 | 2.3 | ENE | 48 | 1029 |
| 03:00 | 08:00 | -8.1 | -12.9 | 0 | 1.9 | ENE | 52 | 1030 |
| 04:00 | 09:00 | -8.1 | -12.5 | 0 | 1.3 | ENE | 52 | 1030 |
| 05:00 | 10:00 | -8.3 | -12.8 | 0 | 1.6 | NE | 58 | 1031 |
| 06:00 | 11:00 | -8.2 | -12.7 | 0 | 1.6 | NE | 59 | 1032 |
| 07:00 | 12:00 | -8.1 | -12.5 | 0 | 1.4 | NE | 60 | 1032 |
| 08:00 | 13:00 | -7.9 | -12.3 | 0 | 1.6 | ENE | 61 | 1033 |
| 09:00 | 14:00 | -6.1 | -10.7 | 0 | 2.1 | ENE | 60 | 1034 |
| 10:00 | 15:00 | -4.5 | -9 | 0 | 1.9 | E | 59 | 1034 |
| 11:00 | 16:00 | -3.7 | -8.1 | 0 | 1.9 | E | 58 | 1034 |
| 12:00 | 17:00 | -2.3 | -6.7 | 0 | 2 | ESE | 57 | 1033 |
| 13:00 | 18:00 | -1.6 | -6.1 | 0.01 | 2.1 | ESE | 56 | 1033 |
| 14:00 | 19:00 | -1.1 | -5.6 | 0.03 | 2.2 | ESE | 56 | 1033 |
| 15:00 | 20:00 | -1.3 | -5.8 | 0.02 | 2.2 | SE | 59 | 1033 |
| 16:00 | 21:00 | -1.6 | -5.8 | 0.01 | 1.8 | ESE | 62 | 1034 |
| 17:00 | 22:00 | -1.9 | -5.7 | 0 | 1.3 | E | 64 | 1034 |
| 18:00 | 23:00 | -2.2 | -6.1 | 0 | 1.4 | E | 66 | 1035 |
| 19:00 | 00:00 | -2.2 | -6.2 | 0 | 1.7 | E | 65 | 1035 |
| 20:00 | 01:00 | -2.3 | -6.4 | 0 | 1.8 | ESE | 66 | 1035 |
| 21:00 | 02:00 | -2.3 | -6.3 | 0 | 1.6 | ESE | 67 | 1035 |
| 22:00 | 03:00 | -2.6 | -6.5 | 0 | 1.4 | ESE | 70 | 1035 |
| 23:00 | 04:00 | -2.5 | -6.2 | 0 | 1.2 | SE | 70 | 1035 |
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
- Worcester — 42.250°, -71.750°, ERA5 grid cell center, 4.5 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 13 December 2018 specifically — not a monthly average. See the Worcester 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 (2026-07-17). Historical climate data for Worcester, United States (42.25°N, 71.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Worcester, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Worcester, 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 Worcester, 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.