Climateby Month

Galena, IL weather in July

NOAA 1991-2020 normals and daily records · Galena all year

Galena is warm and often humid in July, with some rain: highs average 85°F and nights drop to about 63°F. Expect about 9 wet days. This is the peak of the warm season in Galena.

Normal high
85°F
Normal low
63°F
Wet days
9
4.9 in total
Muggy days
13
dew point 65°F+

How July changes from start to finish

Normal values at the start and end of July
July 1July 31
Normal high84°F84°F
Normal low62°F63°F
Chance of a wet day33%31%
Sunrise / sunset5:28 am / 8:42 pm5:53 am / 8:22 pm
Daylight15.2 h14.5 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).

A typical July day

  1. 6 am66°Fdew point 62°F
  2. 9 am73°Fdew point 64°F
  3. Noon78°Fdew point 64°F
  4. 3 pm80°Fdew point 64°F
  5. 6 pm78°Fdew point 64°F
  6. 9 pm70°Fdew point 64°F

NOAA hourly normals (local standard time) from Dubuque Rgnl Airport (14 mi away); average wind 7 mph.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F5 of 31
  • Hot dayshigh 90°F or more7 of 31
  • Muggy daysdaily mean dew point 65°F or more13 of 31
  • Wet daysat least 0.01 in of rain or melted snow9 of 31
  • Notable rainat least 0.10 in6 of 31
  • Freezing nightslow 32°F or below0 of 31
  • Snow on the groundsnow depth 1 in or more0 of 31

Average days per July, counted from daily records for each year 1991-2020.

Rain in July

Normal precipitation is 4.9 in; a dry July brings about 2.7 in and a wet one about 5.6 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 2 an inch or more.

How July varies from year to year

  • Warmest July, 1991-20202012: average high 93°F
  • Coolest July2009: average high 76°F
  • Wettest July2011: 20.1 in
  • Driest July2012: 0.3 in
  • Highest reading103°F (July 7, 2012)
  • Lowest reading46°F (July 10, 1996)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

July compared with June and August

JuneJulyAugust
Normal high81°F85°F83°F
Normal low59°F63°F61°F
Wet days12910
Comfortable days957
Daylight15.2 h14.9 h13.8 h

Highs change by +4°F from June and -2°F into August.

How Galena ranks in July

  • Normal high239th warmest of 378 cities; 4th of 8 in Illinois
  • Wet days189th driest of 378
  • Comfortable days115th most of 340

What to pack for Galena in July

  • Light, breathable clothing – highs near 85°F and about 13 muggy days
  • A rain jacket or umbrella – rain on about 9 days
  • Sunglasses and sunscreen – about 14.9 hours of daylight and highs near 85°F

Heating and cooling

July has 4 heating degree days and 272 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.

Questions

How hot is Galena in July?

The normal high is 85°F and the normal low is 63°F. From 1991 to 2020 the hottest July reading was 103°F (July 7, 2012).

Does it rain a lot in Galena in July?

About 9 days in July have at least 0.01 in of precipitation, and the normal total is 4.9 in. The wettest July in 1991-2020 was in 2011 (20.1 in); the driest was in 2012 (0.3 in).

Is July a good time to visit Galena?

July ranks 7th of 12 months on our comfort score for Galena (57 out of 100). It has about 5 comfortable days and about 7 days at 90°F or hotter. The best month is May.

Where the numbers come from

  • Temperature and frost dates: Bellevue L&D 12 (USC00130608), 11 mi S of the city center, 603 ft . NOAA normals and daily records, 1991-2020.
  • Rain, snowfall and snow depth: Galena (USC00113312), 2.5 mi ESE of the city center, 822 ft (190 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour: Dubuque Rgnl Airport (USW00094908), 14 mi W of the city center, 1,056 ft (424 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Dubuque Regional Airport (725470-94908), 14 mi W of the city center, 1,040 ft (408 ft higher than the city). Hourly observations, 1991-2020.
  • Not available for this location: cloud cover (no station close enough or similar enough in elevation).