What’s the climate like in Rockville?
The current climate of Rockville features average monthly temperatures ranging from highs of 29°C during the day to lows of 4°C. The average yearly temperature is around 17°C. At night, temperatures in the colder months average around -6°C and in the warmer months around 18°C.
The highest temperature recorded in Rockville in recent years was 37°C in June 2021. The lowest daytime temperature recorded was -14°C in January 2019.
On average, Rockville gets 1702 mm of precipitation each year. Of this, about 170 cm is snowfall. For comparison, London gets 701 mm of precipitation each year.
Best time to visit Rockville?
The best time to visit Rockville for pleasant to warm weather is April through September. There might be some rain during this period, but the temperatures are just right for exploring Rockville.
Climate Table of Rockville
The climate table of Rockville shows the average temperatures, precipitation, snow, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 4 | 5 | 9 | 15 | 21 | 26 | 29 | 29 | 25 | 18 | 11 | 7 |
| Temp. min (°C) | -5 | -5 | -1 | 5 | 9 | 14 | 18 | 17 | 13 | 7 | 0 | -2 |
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| Precipitation (mm) | 138 | 136 | 139 | 176 | 87 | 143 | 97 | 113 | 134 | 233 | 199 | 107 |
| Snow (cm) | 50 | 61 | 35 | 4,4 | 0 | 0 | 0 | 0 | 0 | 4,3 | 4,2 | 9,9 |
| UV Index | 1 | 2 | 3 | 4 | 6 | 6 | 6 | 4 | 5 | 3 | 1 | 1 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 17°C
- Highest temperature: 29°C in July and August
- Lowest temperature: 4°C in January
- Precipitation*: 1702 mm per year, averaging 142 mm per month
- Snowfall: 170 cm per year
- Driest months: 87 mm in May, 97 mm in July and 107 mm in December
- Wettest months: 233 mm in October, 199 mm in November and 176 mm in April
*Precipitation is measured as a combination of rain, snow, and hail
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Table of Contents
Average Temperature per Month in Rockville
This graph shows the average maximum temperatures per month in Rockville, Massachusetts. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Rockville
This graph shows how much precipitation Rockville, Massachusetts, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average Snowfall per Month in Rockville
This graph shows how much snow Rockville, Massachusetts, gets on average per month. The amount of snowfall is measured in centimetres and the average is calculated based on the recorded snowfall per month from past years.
Average UV Index per Month in Rockville
This graph shows the average UV index per month in Rockville, Massachusetts. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Rockville
This graph shows the average yearly temperature in Rockville, Massachusetts. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Rockville
This chart shows the total yearly precipitation in Rockville, Massachusetts, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Total Yearly Snowfall in Rockville
This chart shows the total yearly snowfall in Rockville, Massachusetts, over the past few years. The total yearly snowfall, measured in centimetres, is the sum of all the snow that fell in the twelve months of that year.
Weather experiences in Rockville
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Average Weather in Rockville by Month
Click on a month below to see detailed weather info for Rockville. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
