Washington (IN) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Washington.
Climate overview of Washington
Temperatures in Washington, Indiana, United States of America, vary greatly throughout the year. July is the hottest month at 31°C (88°F), while January is the coldest at 4°C (39°F).
Rain/snowfall is high, totalling around 1288 mm (51 in) per year. April is the wettest month and February the driest. The city also experiences very warm summers and cold winters.
Washington Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Washington - and find the best time to visit.
Monthly Temperature in Washington
The climate in Washington is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a very warm 31°C (88°F) in July, the warmest time of the year, to a chilly 4°C (39°F) during cooler months like January.
At night, you can expect temperatures ranging from 19°C (66°F) in July to around -5°C (23°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Washington
Washington has a notably wet climate with abundant precipitation, recording 1288 mm (51 in) of rain/snowfall per year. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, April it receives high rainfall, averaging 150 mm (5.9 in) of precipitation, recorded across 12 rainy days. In contrast, the driest month February brings less rainfall, with 66 mm (2.6 in) over 9 rainy days. For more details, please visit our Washington Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Washington
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: April, May, September and October
- Warmest weather: June, July and August
- Seasonal pattern: Very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -5°C (23°F).
Frequently asked questions about the climate in Washington
What is the best time to visit Washington?
April, May, September and October typically offer the most optimal weather in Washington. In contrast, January, February and December tend to have less optimal conditions. Washington has very warm summers and cold winters.
What temperatures can I expect in Washington?
Daytime highs range from 4°C (39°F) in January to 31°C (88°F) in July. Nighttime lows range from -5°C (23°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Washington get?
Annual rainfall is around 1288 mm (51 in). April is the wettest month with 150 mm (5.9 in), while February is the driest with 66 mm (2.6 in).
Washington 3-Day Forecast
Washington (IN) 3-Day Forecast
Washington on the map
Washington is highlighted - select any city to see its climate.
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