Galena Weather in May
During May, Galena experiences pleasant daytime temperatures of 22°C (72°F) and cooler nights around 9°C (48°F). Expect quite a bit of rainfall. Around 103 mm (4.1 in) is typical.
Rainfall in Galena in May
Looking at the last 30 years, the data shows about 13 days with rain, averaging 103 mm (4.1 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Galena in May
In May, Galena sees pleasant temperatures, with highs of 22°C (72°F). Nights drop to around 9°C (48°F). The difference between afternoon and evening temperatures is usually noticeable. Nights fall to 9°C (48°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Galena in May
Enjoy a sunny month with about 280 hours of sunshine, the clear skies make Galena even more beautiful.If you prefer dry days with pleasant temperatures, September typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Galena's climate page.
Galena Temperature in May
Min Temperature
9°C (48°F)
Max Temperature
22°C (72°F)
Chance of Rain
43%
Precipitation
103 mm (4.1 in)
Rainy days
13 days
Sunshine
280 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Galena typically rise from around 18°C (64°F) at the start of May to approximately 23°C (73°F) by the end. Nights are cool, with lows typically ranging from 7°C (45°F) to 14°C (57°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Galena in May
Browse day-by-day weather records for Galena spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Galena historical weather extremes in May
According to our 50 years of weather records for Galena, the following extremes were recorded between 1976 and 2026.
- Galena recorded its highest May temperature of 34°C (93°F) on May 12, 2022.
- The coldest night in May in Galena was on May 3, 2005, with a minimum of -5°C (23°F).
- The wettest May day on record brought 59 mm (2.3 in) of precipitation to Galena (May 14, 1985).
Best Places in the United States of America in May
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →
perfect weather
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tolerable
unpleasant
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What to Wear in Galena in May
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Galena in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Galena's climate page.
See the full Galena climate overview or explore weather in the United States of America.
