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Grasonville (MD) Weather and Climate: A Comprehensive Guide

Grasonville experiences great temperature shifts. The city's weather can transition from very warm days to cold weather. It also has a relatively rain/snowy climate with high levels of precipitation. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

The climate in Grasonville is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a very warm 31°C in July to a chilly 6°C in January.

Nighttime temperatures can drop, with average lows reaching -2°C in January. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Grasonville has a notably wet climate with abundant precipitation, recording 1207 mm of rain/snowfall per year. The seasons in Grasonville, bring significant changes in precipitation. The wettest month, June, receives high rainfall, with an average of 142 mm of precipitation. This rainfall is distributed across 14 rainy days.

In contrast, the driest month, February, experiences much less rainfall, totaling 64 mm over 11 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Grasonville Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

In Grasonville, summer days are longer and more sunny, with daily sunshine hours peaking at 9.4 hours in June. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.3 hours per average day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Washington DC, the United States of America (72 KM, 44 Miles).

Daily hours of sunshine

Data from: Washington DC, the United States of America (72 KM, 44 Miles).

Forecast for Grasonville (MD)

Fri   Dec 27
6°C | -3°C
NE 2 m/s
partly cloudy and no rain

partly cloudy and no rain

Sat   Dec 28
10°C | 5°C
S 2 m/s
4.3 mm
overcast and rain

overcast and rain

Sun   Dec 29
15°C | 10°C
SE 6 m/s
15 mm
overcast and rain

overcast and rain

The best time of year to visit Grasonville in the United States of America

During the months of May and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is summer in Grasonville?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Grasonville?
    July has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in Grasonville?
    The coldest month is January with an average maximum temperature of 6°C.
  • Which is the wettest month in Grasonville?
    June tops the wettest month list with 142 mm of rainfall.
  • Which is the driest month in Grasonville?
    February is the driest month with 64 mm of precipitation.
  • Which is the sunniest month in Grasonville?
    June is the sunniest month with an average of 282 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.