The climate of Dorchester

The current climate in Dorchester features temperatures ranging from a high of 28°C to a low of -1°C throughout the year. The average yearly temperature is around 14°C. At night, temperatures in the colder months average around -11°C and in the warmer months around 15°C.

Average temperatures and precipitation

This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Dorchester, New Hampshire.

Temperature records

The highest temperature recorded in Dorchester in recent years was 35°C in August 2022. The lowest daytime temperature recorded was -18°C in January 2018.

Precipitation and snowfall

On average, Dorchester gets 1335 mm of precipitation each year. Of this, about 208 cm is snowfall. For comparison, New York gets 1142 mm of precipitation each year.

Best time to visit Dorchester?

The best time to visit Dorchester for mild to warm weather is May up to October. You might get some rain, but the temperatures are just right to explore Dorchester.

Climate Table of Dorchester

The climate table of Dorchester shows the average temperatures, rainfall, snow, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Temp. max (°C) -1 0 5 12 21 24 28 27 23 15 8 3
Temp. min (°C) -11 -11 -6 1 8 12 15 15 11 5 -1 -5
Precipitation
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Precipitation (mm) 75 65 58 103 89 149 176 138 119 138 104 121
Snow (cm) 47 61 35 7,7 0,3 0 0 0 0 0,8 16 40
UV Index 1 2 4 4 6 6 5 6 5 3 2 1

Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.

Temperature charts

These charts display the average temperatures in Dorchester, New Hampshire. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Average Temperature per Month in Dorchester

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Yearly Temperature in Dorchester

Precipitation charts

These charts show the average amount of precipitation in Dorchester, New Hampshire. Precipitation is always measured as water, even when it falls as snow or hail. The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Average Precipitation per Month in Dorchester

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Total Yearly Precipitation in Dorchester

Average Snowfall per Month in Dorchester

Total Yearly Snowfall in Dorchester

UV index chart

This chart shows the average UV index per month in Dorchester, New Hampshire. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.

Average UV Index per Month in Dorchester

Weather experiences in Dorchester

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Average weather in Dorchester by month

Click on a month below to see detailed weather info for Dorchester. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.