Worcester climate
Worcester is warmest in July, with average highs of 28 °C, and coldest in January, when nights average -7.0 °C. December is the wettest month (109 mm) and February the driest (79 mm). Figures are 1991–2020 climate normals.
Across a full year Worcester averages 1,131 mm of rain, 74 days above 25 °C and 111 days below freezing.
United States · 147 m elevation · population 206,518 · 1991–2020 normals
Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month
- Warmest month July 28 °C
- Coldest month January -7.0 °C
- Driest month February 79 mm
- Wettest month December 109 mm
- Least cloud September 53 % cloud
- Hottest on record July 40 °C
- Coldest on record February -27 °C
What to expectWorcester through the year
Worcester has a clear annual cycle: average daily highs run from 1.1 °C in January to 28 °C in July, a swing of 26 °C in mean temperature across the year.
Counted across a normal year, 74 days a year reach 25 °C, 19 of them reach 30 °C, 111 nights drop below freezing. The warmest reading in the 1991–2020 record is 40 °C, in July.
Rain is spread fairly evenly through the year, from 79 mm in February to 109 mm in December. There is no dry season to aim for.
Month by month
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| January | 1.1 °C | 87 mm | 57 % |
| February | 2.5 °C | 79 mm | 57 % |
| March | 6.7 °C | 107 mm | 60 % |
| April | 13.5 °C | 97 mm | 62 % |
| May | 19.5 °C | 83 mm | 63 % |
| June | 24.6 °C | 100 mm | 61 % |
| July | 27.8 °C | 89 mm | 56 % |
| August | 26.6 °C | 97 mm | 54 % |
| September | 22.4 °C | 95 mm | 53 % |
| October | 15.6 °C | 101 mm | 54 % |
| November | 9.4 °C | 86 mm | 57 % |
| December | 3.9 °C | 109 mm | 59 % |
Temperature month by month
| Month | Avg high | Avg low | Mean | Record high | Record low | Days above 25 °C | Days above 30 °C | Days below 0 °C |
|---|---|---|---|---|---|---|---|---|
| January | 1.1 °C | -7.0 °C | -3.5 °C | 18.2 °C | -25.1 °C | 0 | 0 | 27 |
| February | 2.5 °C | -6.2 °C | -2.4 °C | 20.6 °C | -27.2 °C | 0 | 0 | 25 |
| March | 6.7 °C | -2.5 °C | 1.5 °C | 28.4 °C | -18.6 °C | 0 | 0 | 21 |
| April | 13.5 °C | 3.5 °C | 7.9 °C | 30.8 °C | -7.5 °C | 1 | 0 | 5 |
| May | 19.5 °C | 9.5 °C | 13.9 °C | 35.1 °C | 0.3 °C | 5 | 1 | 0 |
| June | 24.6 °C | 14.9 °C | 19.3 °C | 37.7 °C | 5.5 °C | 14 | 3 | 0 |
| July | 27.8 °C | 18.3 °C | 22.6 °C | 39.7 °C | 11.4 °C | 24 | 8 | 0 |
| August | 26.6 °C | 17.6 °C | 21.6 °C | 36.4 °C | 10.5 °C | 21 | 5 | 0 |
| September | 22.4 °C | 14.0 °C | 17.7 °C | 34.5 °C | 2.5 °C | 8 | 1 | 0 |
| October | 15.6 °C | 7.9 °C | 11.2 °C | 29.8 °C | -5.2 °C | 1 | 0 | 1 |
| November | 9.4 °C | 2.2 °C | 5.3 °C | 22.8 °C | -15.3 °C | 0 | 0 | 10 |
| December | 3.9 °C | -3.1 °C | -0.1 °C | 19.2 °C | -21.3 °C | 0 | 0 | 23 |
Rain, sun and wind month by month
| Month | Rainfall | Wet days | Daylight | Cloud cover | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 87 mm | 9 | 9.4 h/day | 57 % | 70 % | 19 km/h |
| February | 79 mm | 9 | 11 h/day | 57 % | 68 % | 19 km/h |
| March | 107 mm | 10 | 12 h/day | 60 % | 68 % | 19 km/h |
| April | 97 mm | 11 | 13 h/day | 62 % | 68 % | 19 km/h |
| May | 83 mm | 11 | 15 h/day | 63 % | 71 % | 17 km/h |
| June | 100 mm | 11 | 15 h/day | 61 % | 71 % | 16 km/h |
| July | 89 mm | 11 | 15 h/day | 56 % | 70 % | 15 km/h |
| August | 97 mm | 10 | 14 h/day | 54 % | 72 % | 14 km/h |
| September | 95 mm | 8 | 13 h/day | 53 % | 75 % | 15 km/h |
| October | 101 mm | 10 | 11 h/day | 54 % | 75 % | 18 km/h |
| November | 86 mm | 9 | 9.8 h/day | 57 % | 74 % | 18 km/h |
| December | 109 mm | 10 | 9.1 h/day | 59 % | 73 % | 19 km/h |
Where Worcester ranks
| Ranking | Position | Value |
|---|---|---|
| Places with the best weather in North America in September | 17thof 50 | 91/100 |
| The coolest places in North America in March | 32ndof 50 | 6.7 °C |
| The coolest places in North America in April | 35thof 50 | 14 °C |
| The coolest places in North America in February | 37thof 50 | 2.5 °C |
| The coolest places in North America in May | 38thof 50 | 19 °C |
| The coolest places in North America in October | 38thof 50 | 16 °C |
Planning a trip? See the best time to visit Worcester.
QuestionsCommon questions about Worcester’s climate
When is the best time to visit Worcester?
That depends on what you want, so the honest answer is a comparison rather than a single month. June, August, September sit closest to 20 °C on average, July is the warmest month and February the driest. The month-by-month table above has the full picture.
How hot does Worcester get?
In July, the warmest month, daily highs average 28 °C. About 19 days a year pass 30 °C. The highest value in the 1991–2020 record is 40 °C.
How cold does it get in winter?
Nights average -7.0 °C in January, the coldest month. A normal year has 111 nights below freezing.
Which month is wettest in Worcester?
December, averaging 109 mm over 10 days with rain. The driest month is February with 79 mm. The year as a whole averages 1,131 mm.
Are these figures a forecast?
No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Worcester rather than what any particular week will bring. Individual years can differ substantially from the normal.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- Normal period
- 1991–2020
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.