April Weather in Lewiston

Last updated: March 2, 2024

The weather in Lewiston, United States, during April is characterized by an average temperature of 4°C (40°F). Highs can soar to 18°C (65°F), while lows may dip to -9°C (17°F). Typically, the humidity level in Lewiston throughout April hovers around 74%.

-9°C (17°F)

Minimum temperature

4°C (40°F)

Average temperature

18°C (65°F)

Maximum temperature

74%

Humidity

Precipitation and Sunshine hours

In April, Lewiston averages 78 mm (3.1 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 13 hours 23 minutes of daylight, with the sun shining for approximately 9 hours 26 minutes each day. Additionally, there is a 58% probability of sunny days during this period.

78 mm (3.1 inches)

Precipitation

12 rainy days

Rainy days

9 hours 26 minutes

Sunshine hours

58%

Chance of sun

UV Index

In April, the UV Index in Lewiston reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 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 3 5 7 9 10 10 8 6 4 2 1
Exposure Low Moderate High VeryHigh High Moderate Low
Time to burn 45 min 30 min 25 min 15 min 25 min 30 min 45 min

Compare Lewiston's Climate with Cities Worldwide