What’s the climate like in Potomac?
The current climate of Potomac features average monthly temperatures ranging from highs of 31°C during the day to lows of 7°C. The average yearly temperature is around 20°C. At night, temperatures in the colder months average around -2°C and in the warmer months around 21°C.
The highest temperature recorded in Potomac in recent years was 37°C in July 2016. The lowest daytime temperature recorded was -10°C in January 2014.
On average, Potomac gets 1498 mm of precipitation each year. Of this, about 11 cm is snowfall. For comparison, London gets 701 mm of precipitation each year.
Best time to visit Potomac?
The best time to visit Potomac for pleasant to warm weather is April through November. There might be some rain during this period, but the temperatures are just right for exploring Potomac.
Climate Table of Potomac
The climate table of Potomac 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) | 7 | 10 | 13 | 19 | 23 | 29 | 31 | 30 | 26 | 21 | 15 | 9 |
| Temp. min (°C) | -1 | 0 | 3 | 8 | 13 | 18 | 21 | 20 | 17 | 11 | 4 | 0 |
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| Precipitation (mm) | 111 | 101 | 72 | 120 | 182 | 156 | 204 | 83 | 123 | 109 | 110 | 127 |
| Snow (cm) | 1,4 | 3,0 | 3,1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0,1 | 3,3 |
| UV Index | 2 | 1 | 3 | 5 | 7 | 8 | 5 | 5 | 3 | 2 | 2 | 2 |
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: 20°C
- Highest temperature: 31°C in July
- Lowest temperature: 7°C in January
- Precipitation*: 1498 mm per year, averaging 125 mm per month
- Snowfall: 11 cm per year
- Driest months: 72 mm in March, 83 mm in August and 101 mm in February
- Wettest months: 204 mm in July, 182 mm in May and 156 mm in June
*Precipitation is measured as a combination of rain, snow, and hail
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Table of Contents
Average Temperature per Month in Potomac
This graph shows the average maximum temperatures per month in Potomac, Maryland. 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 Potomac
This graph shows how much precipitation Potomac, Maryland, 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 Potomac
This graph shows how much snow Potomac, Maryland, 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 Potomac
This graph shows the average UV index per month in Potomac, Maryland. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Potomac
This graph shows the average yearly temperature in Potomac, Maryland. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Potomac
This chart shows the total yearly precipitation in Potomac, Maryland, 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 Potomac
This chart shows the total yearly snowfall in Potomac, Maryland, 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 Potomac
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Average Weather in Potomac by Month
Click on a month below to see detailed weather info for Potomac. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
