Climate averages 1991–2020
Newton weather
in July.
A warm, moderately wet month: the warmest and one of the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a warm month in Newton: daytime highs average 27.7°C and nights cool to about 18.7°C. By daytime temperature it is the warmest month of the year.
Expect about 77 mm of rain on roughly 10 days, which makes July a moderately wet month (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 14 h 57 min on an average July day.
The nearest other city in this atlas is Dorchester (12 km away). In July its highs average 27.2°C, 0.5°C cooler than Newton, with 73 mm of rain.
Among the 498 cities listed in the United States, Newton ranks joint 377th of 498 for the warmest July highs and joint 239th of 498 for the driest July (rainfall, lowest first). The mean July high of those 498 cities is 30.3°C; Newton is 2.6°C cooler than that mean.
From July to August, average highs fall by 0.9°C to 26.8°C, and monthly rainfall rises from 77 mm to 88 mm.
The annual picture
July in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Newton climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 1.7°C-6.6°C | -6.6°C | 87 | 9.6 | 9.59 h |
| February | 3.1°C-5.8°C | -5.8°C | 78 | 8.7 | 10.511 h |
| March | 7.0°C-2.0°C | -2.0°C | 109 | 10.9 | 11.912 h |
| April | 13.4°C3.9°C | 3.9°C | 93 | 10.8 | 13.313 h |
| May | 19.1°C9.6°C | 9.6°C | 77 | 10.3 | 14.615 h |
| June | 24.3°C15.1°C | 15.1°C | 88 | 10.7 | 15.215 h |
| July, selected | 27.7°C18.7°C | 18.7°C | 77 | 10.4 | 14.915 h |
| August | 26.8°C18.1°C | 18.1°C | 88 | 9.6 | 13.914 h |
| September | 22.6°C14.4°C | 14.4°C | 85 | 8.1 | 12.513 h |
| October | 16.1°C8.4°C | 8.4°C | 99 | 9.3 | 11.111 h |
| November | 10.0°C2.7°C | 2.7°C | 87 | 9.1 | 9.810 h |
| December | 4.6°C-2.6°C | -2.6°C | 107 | 10.6 | 9.19 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Dorchester in JulyUnited States · 12 kmHigh 27.2°C · Low 18.6°C · 73 mm rain
- Boston in JulyUnited States · 13 kmHigh 27.5°C · Low 18.4°C · 73 mm rain
- Quincy in JulyUnited States · 19 kmHigh 26.6°C · Low 18.8°C · 73 mm rain
- Lynn in JulyUnited States · 26 kmHigh 25.2°C · Low 18.6°C · 74 mm rain
- Brockton in JulyUnited States · 32 kmHigh 27.1°C · Low 18.7°C · 77 mm rain
- Lowell in JulyUnited States · 34 kmHigh 27.8°C · Low 18.2°C · 82 mm rain
- Lawrence (Massachusetts), United States in JulyUnited States · 41 kmHigh 27.8°C · Low 18.4°C · 82 mm rain
- Worcester, United States in JulyUnited States · 49 kmHigh 27.6°C · Low 18.1°C · 90 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Newton) is explained once on the Newton year overview and on the Sources, method and limits page.