Lombard, IL Weather & Climate Normals
Lombard's real weather, in one number
Lombard, IL scores 45/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 5 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Lombard's hottest and coldest months
Lombard's hottest month is Jul, averaging 74°F; its coldest is Jan, averaging 25°F, a 49.5°F swing across the year, one of the widest gaps in this dataset.
Lombard's weather across the year
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 33°F | 17°F | 2.12in | 9.3in |
| Feb | 38°F | 20°F | 1.96in | 5.1in |
| Mar | 50°F | 29°F | 2.46in | 4.5in |
| Apr | 63°F | 38°F | 4.1in | 0.3in |
| May | 74°F | 49°F | 4.46in | 0in |
| Jun | 83°F | 59°F | 4.65in | 0in |
| Jul | 86°F | 63°F | 3.86in | 0in |
| Aug | 84°F | 62°F | 4.4in | 0in |
| Sep | 78°F | 54°F | 3.3in | 0in |
| Oct | 65°F | 43°F | 3.56in | 0in |
| Nov | 50°F | 32°F | 2.81in | 0.9in |
| Dec | 38°F | 23°F | 2.22in | 4.2in |
May, Jun, Jul, Aug, and Sep are the best time to see Lombard at its mildest; the rest of the year, plan around Jan's cold.
Rain and snow in Lombard
Lombard averages 39.9in of precipitation a year across roughly 116 days with measurable rain or snow, and 24.3in of snow a year.
Where Lombard ranks
Lombard ranks 3255 of 4876 US cities in this dataset for comfort score, and 117 of 330 within IL. About 44,490 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Wheaton 3 Se, IL US, 5.1 miles from Lombard, not a prediction for any specific day.
More on how this is worked out
How the comfort score is calculated · Why some cities show no snow or rain figure