Harvard, IL Weather & Climate Normals
What a normal year in Harvard actually looks like
On the 30-year record NOAA keeps for Harvard, IL, the comfort score comes out to 44/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 5 months a year land in the 55–75°F range this site treats as mild.
How much Harvard's weather actually swings
Average temperatures in Harvard run from 21°F in Jan up to 73°F in Jul, a 51.6°F seasonal swing, one of the widest gaps in this dataset.
Harvard, month by month
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 29°F | 13°F | 1.67in | 8in |
| Feb | 33°F | 16°F | 1.64in | 9.1in |
| Mar | 45°F | 26°F | 2.08in | 2.4in |
| Apr | 59°F | 36°F | 3.81in | 0.4in |
| May | 70°F | 47°F | 4.57in | 0in |
| Jun | 80°F | 57°F | 4.62in | 0in |
| Jul | 84°F | 62°F | 4.05in | 0in |
| Aug | 82°F | 60°F | 4.22in | 0in |
| Sep | 75°F | 52°F | 3.68in | 0in |
| Oct | 62°F | 40°F | 2.98in | 0in |
| Nov | 47°F | 29°F | 2.35in | 1.6in |
| Dec | 35°F | 19°F | 1.94in | 9.3in |
If you're timing a visit, May, Jun, Jul, Aug, and Sep are Harvard's mildest stretch; if you're moving there, you should plan around Jan's cold instead.
How wet Harvard actually gets
Over a typical year, Harvard sees about 37.61in of precipitation a year across roughly 101 days with measurable rain or snow, with 30.8in of snow a year.
Harvard against the rest of the country
Out of 4876 cities scored here, Harvard comes in at 3842; within IL alone it ranks 209 of 330. Population is about 9,408.
Checking the actual forecast
These figures come from Marengo, IL US, the NOAA station 11.5 miles from Harvard, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why this uses the nearest NOAA station · How the comfort score is calculated