United StatesAverage weather for Manassas in May
It's warm in May in Manassas with an average temperature of 24°C. Temperatures this month range from a low of 18°C to a high of 30°C. At night, you can expect temperatures between 8°C and 19°C.
Start of May
The month of May starts in Manassas with warm temps, averaging around 22°C during the day and nights around 12°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.
Mid May
By mid-May, daytime temps rise to around 23°C, with nights around 12°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of May
By the end of May, the average daytime temperature in Manassas is around 28°C, while nighttime temps are about 16°C. A shower might pop up, but overall, the weather will be dry and sunny.
Because temperatures drop in the evening, wearing layers is recommended.
In May, there is an average of 72 mm of precipitation, spread over 7 days. The wind speed is around 3 Bft, mostly coming from the South.
Manassas in May |
New York | ||
|---|---|---|---|
 Average temperature |
24°C | 22°C | |
 Max. temperature |
30°C | 28°C | |
| Min. temperature |
18°C | -5°C | |
 Total precipitation |
72 mm | 105 mm | |
| Rainy days |
7 days | 14 days | |
April
UV index
The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is May a good time to visit Manassas?
Looking for great weather? May is a good time to be in Manassas. The temperatures are nice, and there’s not too much rain.
Temperature records
With 35°C in 2022, Manassas reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 11°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of -3°C to a highest value of 23°C.
Check out the climate of Manassas for all months and discover the best travel time
Daily Temperature in May in Manassas
This chart shows the average daily high and low temperatures in May for Manassas, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in May in Manassas
The chart below shows the average daily precipitation in May for Manassas, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 7 days of precipitation in Manassas.
Daily UV index in May in Manassas
This chart shows the average daily UV index in May in Manassas, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in May in Manassas over the years
This chart shows the average temperature in May in Manassas, measured in degrees Celsius, over the past few years.
Total precipitation in May in Manassas over the years
This chart shows the average precipitation in May in Manassas, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in May for Manassas
Click on any day in May to get detailed info about the usual weather on that day in Manassas. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Manassas
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Share your weather experience in May in Manassas.
Average weather in Manassas by month
Click on a month below to see detailed weather info for Manassas. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
