Duluth, MN weather in July
Expect mild weather with frequent rain in Duluth in July, with highs near 76°F and lows near 58°F. Rain falls on about 10 days. It is one of the warmest months in Duluth. Good for outdoor plans.
- Normal high
- 76°F
- Normal low
- 58°F
- Wet days
- 10
- 3.9 in total
- Muggy days
- 2
- dew point 65°F+
How July changes from start to finish
| July 1 | July 31 | |
|---|---|---|
| Normal high | 73°F | 77°F |
| Normal low | 55°F | 60°F |
| Chance of a wet day | 37% | 31% |
| Sunrise / sunset | 5:18 am / 9:06 pm | 5:47 am / 8:42 pm |
| Daylight | 15.8 h | 14.9 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
- 6 am61°Fdew point 56°F
- 9 am68°Fdew point 57°F
- Noon73°Fdew point 57°F
- 3 pm74°Fdew point 57°F
- 6 pm72°Fdew point 57°F
- 9 pm64°Fdew point 57°F
NOAA hourly normals (local standard time) from Duluth (6 mi away); average wind 9 mph; clear or few clouds in 45% of daytime hours, mostly cloudy or overcast in 31%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F11 of 31
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph8 of 31
- Hot dayshigh 90°F or more2 of 31
- Muggy daysdaily mean dew point 65°F or more2 of 31
- Wet daysat least 0.01 in of rain or melted snow10 of 31
- Notable rainat least 0.10 in7 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 3.9 in; a dry July brings about 2.3 in and a wet one about 4.9 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.
How July varies from year to year
- Warmest July, 1991-20202006: average high 83°F
- Coolest July1992: average high 70°F
- Wettest July1991: 9.0 in
- Driest July2013: 1.2 in
- Highest reading101°F (July 28, 2006)
- Lowest reading36°F (July 1, 2012)
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
| June | July | August | |
|---|---|---|---|
| Normal high | 67°F | 76°F | 75°F |
| Normal low | 50°F | 58°F | 58°F |
| Wet days | 12 | 10 | 10 |
| Comfortable days | 12 | 11 | 16 |
| Daylight | 15.8 h | 15.4 h | 14.2 h |
Highs change by +9°F from June and -1°F into August.
Nearby alternatives in July
- Warmer: Minneapolis, MN136 mi · high 83°F · 10 wet days
How Duluth ranks in July
- Normal high351st warmest of 378 cities; 3rd of 3 in Minnesota
- Wet days241st driest of 378
- Comfortable days43rd most of 340
What to pack for Duluth in July
- A rain jacket or umbrella – rain on about 10 days
- Sunglasses and sunscreen – about 15.4 hours of daylight and highs near 76°F
Heating and cooling
July has 58 heating degree days and 121 cooling degree days (base 65°F), 2% of the year's total heating and cooling demand.
Questions
How hot is Duluth in July?
The normal high is 76°F and the normal low is 58°F. From 1991 to 2020 the hottest July reading was 101°F (most recently on July 28, 2006).
Does it rain a lot in Duluth in July?
About 10 days in July have at least 0.01 in of precipitation, and the normal total is 3.9 in. The wettest July in 1991-2020 was in 1991 (9.0 in); the driest was in 2013 (1.2 in).
Is July a good time to visit Duluth?
July ranks 3rd of 12 months on our comfort score for Duluth (68 out of 100). It has about 11 comfortable days and about 2 days at 90°F or hotter. The best month is August.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: Superior (USC00478349), 4.2 mi SSE of the city center, 607 ft (93 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Duluth (USW00014913), 6.1 mi NW of the city center, 1,428 ft (728 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Duluth International Airport (727450-14913), 5.7 mi NW of the city center, 1,422 ft (722 ft higher than the city). Hourly observations, 1991-2020.