Greenfield, Illinois Climate
United States
Pop. 1,020 Elev. 179 m / 587 ft
TZ: America/Chicago (UTC-5) ·
Greenfield sees warm summers peaking at 87°F (31°C) in July, and frigid winters that bottom out around 18°F (-8°C) in January. Humidity pushes the summer feels-like temperature to around 103°F (39°C). Precipitation occurs on roughly 60 days per year (36.5 in / 927 mm total), with snow on 4 days and 28 in (719 mm) of annual accumulation. The city averages 129 sunny days per year and around 46 thunderstorm days. Nearby lake water reaches 83°F (28°C) in summer.
| Temperature | 87°F (31°C) high | 18°F (-8°C) low |
| Feels like | 103°F (40°C) high | 12°F (-11°C) low |
| Rain | 60 days | 36.5 in (927 mm) /yr |
| Snow | 4 days | 28.3 in (719 mm) /yr |
| Sky | 129 sunny | 46 stormy |
| Wind | 2.1 mph (1.0 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Mar, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
49
Jan 59
Feb 50
Mar 67
Apr 60
May 55
Jun 61
Jul 47
Aug 40
Sep 45
Oct 51
Nov 63
Dec Humidity (%)
68
Jan 65
Feb 54
Mar 62
Apr 65
May 74
Jun 79
Jul 72
Aug 64
Sep 67
Oct 69
Nov 75
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 42 mi St. Louis Lambert International Airport (STL)
Ski resort 61 mi Hidden Valley
National park 124 mi Emmett Till and Mamie Till-Mobley National Monument
Hospital 11 mi Thomas H. Boyd Memorial Hospital
Hiking trail 46 mi ADT - Missouri - L - Seg 1
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 34°F 1°C | 18°F -8°C | 0.5 in 11 mm | 11.9 in302 mm | 13 |
| February | 41°F 5°C | 25°F -4°C | 0.6 in 15 mm | 5.4 in137 mm | 8 |
| March | 64°F 18°C | 41°F 5°C | 2.9 in 75 mm | 0.7 in17 mm | 14 |
| April | 69°F 20°C | 48°F 9°C | 5.7 in 144 mm | 0.0 in1 mm | 5 |
| May | 74°F 23°C | 55°F 13°C | 4.3 in 109 mm | — | 9 |
| June | 84°F 29°C | 68°F 20°C | 5.8 in 146 mm | — | 9 |
| July | 87°F 31°C | 73°F 23°C | 6.7 in 169 mm | — | 7 |
| August | 84°F 29°C | 65°F 18°C | 1.0 in 26 mm | — | 14 |
| September | 83°F 28°C | 58°F 14°C | 2.5 in 64 mm | — | 16 |
| October | 71°F 22°C | 52°F 11°C | 3.5 in 89 mm | — | 16 |
| November | 55°F 13°C | 38°F 4°C | 2.5 in 63 mm | 6.7 in171 mm | 11 |
| December | 43°F 6°C | 26°F -3°C | 0.6 in 15 mm | 3.6 in91 mm | 7 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 13 | 0 |
| February | 8 | 0 |
| March | 14 | 4 |
| April | 5 | 7 |
| May | 9 | 5 |
| June | 9 | 7 |
| July | 7 | 12 |
| August | 14 | 3 |
| September | 16 | 4 |
| October | 16 | 2 |
| November | 11 | 2 |
| December | 7 | 0 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 33°F 0°C |
| February | 32°F 0°C |
| March | 49°F 9°C |
| April | 58°F 15°C |
| May | 65°F 18°C |
| June | 77°F 25°C |
| July | 83°F 28°C |
| August | 77°F 25°C |
| September | 72°F 22°C |
| October | 62°F 17°C |
| November | 46°F 8°C |
| December | 34°F 1°C |