Dubuque weather by month & the best time to visit
United States · small town · hot-summer continental climate
The best time to visit Dubuque is September — its sunniest month (Sunshine Score 74/100), with August and May close behind. Dubuque averages about 2,280 hours of sunshine a year. Daytime highs around 23°C / 73°F and roughly 98 mm of rain in September.
When is the best time to visit Dubuque?
For sunshine, the best time to visit Dubuque is September, then August and May. The dullest month is January (0/100, 31 mm of rain). The full month-by-month picture is in the table below.
How sunny is Dubuque?
Dubuque gets a moderate 2,280 hours of sunshine a year. 74 Sunshine Score points separate September (74) from January (0), so the month you pick matters. It ranks #287 of 580 destinations in United States for annual sunshine, above the national median of 2,279 hours. The year's 959 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | -3° / 27°F | -12° / 10°F | 31 mm | 1 |
| February | 0 | -1° / 30°F | -11° / 12°F | 37 mm | 2 |
| March | 0 | 7° / 45°F | -4° / 25°F | 55 mm | 3 |
| April | 37 | 14° / 57°F | 2° / 36°F | 95 mm | 5 |
| May | 72 | 20° / 68°F | 9° / 48°F | 109 mm | 6 |
| June | 67 | 26° / 79°F | 15° / 59°F | 137 mm | 7 |
| July | 72 | 28° / 82°F | 17° / 63°F | 112 mm | 8 |
| August | 73 | 27° / 81°F | 16° / 61°F | 103 mm | 7 |
| September | 74 | 23° / 73°F | 11° / 52°F | 98 mm | 5 |
| October | 45 | 15° / 59°F | 4° / 39°F | 79 mm | 3 |
| November | 0 | 7° / 45°F | -2° / 28°F | 54 mm | 2 |
| December | 0 | -1° / 30°F | -9° / 16°F | 49 mm | 1 |
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Dubuque: questions and answers
What kind of destination is Dubuque?
Dubuque is a small town in United States at 321 m elevation with a hot-summer continental climate.
How many hours of sunshine does Dubuque get a year?
Dubuque gets about 2,280 hours of sunshine a year, at its best around September.
When is the best time to visit Dubuque?
The sunniest time to visit Dubuque is September, when the Sunshine Score peaks at 74/100 (with August and May close behind). Expect daytime highs around 23°C / 73°F.
What is the least sunny month in Dubuque?
January is the least sunny month in Dubuque, scoring 0/100 with about 31 mm of rain.
How strong is the sun in Dubuque?
The typical midday UV index in Dubuque peaks around 8 (very high) in July, easing to about 1 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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