Rockford weather by month & the best time to visit
🇺🇸 United States · regional city · hot-summer continental climate
The best time to visit Rockford is September — its sunniest month (Sunshine Score 76/100), with July and August close behind. Rockford averages about 2,258 hours of sunshine a year. Daytime highs around 24°C / 75°F and roughly 89 mm of rain in September.
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- Sun hours / year
- 2,258
- Sunniest month
- September
- Peak score
- 76/100
- Rain / year
- 966 mm
- Snow / year
- ≈1.4 m
- Midday UV at peak
- 8 (very high)
- Population
- 256k
- Elevation
- 220 m
When is the best time to visit Rockford?
For sunshine, the best time to visit Rockford is September, then July and August. The dullest month is January (0/100, 41 mm of rain). The full month-by-month picture is in the table below.
How sunny is Rockford?
Rockford gets a moderate 2,258 hours of sunshine a year. 76 Sunshine Score points separate September (76) from January (0), so the month you pick matters. It ranks #299 of 580 destinations in United States for annual sunshine, below the national median of 2,279 hours. The year's 966 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 | -2° / 28°F | -11° / 12°F | 41 mm | 1 |
| February | 0 | 0° / 32°F | -9° / 16°F | 46 mm | 2 |
| March | 0 | 8° / 46°F | -3° / 27°F | 62 mm | 3 |
| April | 44 | 15° / 59°F | 3° / 37°F | 92 mm | 5 |
| May | 71 | 21° / 70°F | 10° / 50°F | 115 mm | 6 |
| June | 69 | 27° / 81°F | 16° / 61°F | 123 mm | 7 |
| July | 73 | 29° / 84°F | 18° / 64°F | 103 mm | 8 |
| August | 73 | 28° / 82°F | 17° / 63°F | 104 mm | 7 |
| September | 76 | 24° / 75°F | 12° / 54°F | 89 mm | 5 |
| October | 52 | 16° / 61°F | 5° / 41°F | 80 mm | 3 |
| November | 0 | 8° / 46°F | -1° / 30°F | 56 mm | 2 |
| December | 0 | 1° / 34°F | -7° / 19°F | 55 mm | 1 |
See Rockford on the interactive sunshine globe →
Nearby places for sunshine
- Chicago United States · 101 km · best in Sep · 2,095 h sun/yr
- Madison United States · 107 km · best in Sep · 2,236 h sun/yr
- Milwaukee United States · 129 km · best in Sep · 1,950 h sun/yr
- Moline United States · 143 km · best in Sep · 2,290 h sun/yr
- Peoria United States · 177 km · best in Sep · 2,293 h sun/yr
- Bloomington/Normal United States · 192 km · best in Sep · 2,243 h sun/yr
Nearest destinations
- Dubuque United States · 135 km · 2,280 h sun/yr · best in Sep
- Gary United States · 153 km · 2,094 h sun/yr · best in Sep
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