Bloomington/Normal weather by month & the best time to visit
🇺🇸 United States · regional city · hot-summer continental climate
The best time to visit Bloomington/Normal is September — its sunniest month (Sunshine Score 76/100), with August and July close behind. Bloomington/Normal averages about 2,243 hours of sunshine a year. Daytime highs around 25°C / 77°F and roughly 85 mm of rain in September.
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- Sun hours / year
- 2,243
- Sunniest month
- September
- Peak score
- 76/100
- Rain / year
- 1,001 mm
- Snow / year
- ≈1.1 m
- Midday UV at peak
- 8 (very high)
- Population
- 172k
- Elevation
- 263 m

When is the best time to visit Bloomington/Normal?
For sunshine, the best time to visit Bloomington/Normal is September, then August and July. The dullest month is January (0/100, 55 mm of rain). The full month-by-month picture is in the table below.
How sunny is Bloomington/Normal?
Bloomington/Normal gets a moderate 2,243 hours of sunshine a year. 76 Sunshine Score points separate September (76) from January (0), so the month you pick matters. It ranks #308 of 580 destinations in United States for annual sunshine, below the national median of 2,279 hours. The year's 1,001 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 | 0° / 32°F | -9° / 16°F | 55 mm | 1 |
| February | 0 | 2° / 36°F | -7° / 19°F | 53 mm | 2 |
| March | 13 | 10° / 50°F | -2° / 28°F | 69 mm | 3 |
| April | 55 | 17° / 63°F | 5° / 41°F | 99 mm | 5 |
| May | 71 | 22° / 72°F | 11° / 52°F | 115 mm | 6 |
| June | 70 | 27° / 81°F | 16° / 61°F | 118 mm | 7 |
| July | 73 | 29° / 84°F | 18° / 64°F | 101 mm | 8 |
| August | 75 | 28° / 82°F | 17° / 63°F | 91 mm | 7 |
| September | 76 | 25° / 77°F | 13° / 55°F | 85 mm | 6 |
| October | 57 | 17° / 63°F | 6° / 43°F | 87 mm | 3 |
| November | 13 | 10° / 50°F | -1° / 30°F | 66 mm | 2 |
| December | 0 | 3° / 37°F | -6° / 21°F | 62 mm | 1 |
See Bloomington/Normal on the interactive sunshine globe →
Nearby places for sunshine
- Peoria United States · 69 km · best in Sep · 2,293 h sun/yr
- Moline United States · 172 km · best in Sep · 2,290 h sun/yr
- Chicago United States · 187 km · best in Sep · 2,095 h sun/yr
- Belleville United States · 229 km · best in Sep · 2,312 h sun/yr
- St Louis United States · 229 km · best in Sep · 2,316 h sun/yr
- Indianapolis United States · 238 km · best in Sep · 2,168 h sun/yr
Nearest destinations
- Decatur United States · 72 km · 2,248 h sun/yr · best in Aug
- Savoy United States · 73 km · 2,242 h sun/yr · best in Sep
- West Lafayette United States · 167 km · 2,188 h sun/yr · best in Sep
- Gary United States · 179 km · 2,094 h sun/yr · best in Sep
Head-to-head
How Bloomington/Normal compares month by month: Bloomington/Normal vs Chicago · Bloomington/Normal vs St Louis · Bloomington/Normal vs Peoria · Bloomington/Normal vs Moline · all comparisons
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