March Weather in Greenwich

Last updated: March 2, 2024

The weather in Greenwich, United States, during March is characterized by an average temperature of 4°C (40°F). Highs can soar to 21°C (70°F), while lows may dip to -10°C (15°F). Typically, the humidity level in Greenwich throughout March hovers around 87%.

-10°C (15°F)

Minimum temperature

4°C (40°F)

Average temperature

21°C (70°F)

Maximum temperature

87%

Humidity

Precipitation and Sunshine hours

In March, Greenwich averages 97 mm (3.8 inches) of rainfall, typically over the course of 13 rainy days. The month enjoys an average of 11 hours 58 minutes of daylight, with the sun shining for approximately 7 hours 23 minutes each day. Additionally, there is a 48% probability of sunny days during this period.

97 mm (3.8 inches)

Precipitation

13 rainy days

Rainy days

7 hours 23 minutes

Sunshine hours

48%

Chance of sun

UV Index

In March, the UV Index in Greenwich reaches a maximum of 6, indicating a level of High exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 25 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 1 2 3 4 5 6 6 5 4 2 1 1
Exposure Low Moderate High Moderate Low
Time to burn 45 min 30 min 25 min 30 min 45 min

Compare Greenwich's Climate with Cities Worldwide