Farmington, Illinois Climate
United States
Pop. 2,328 Elev. 228 m / 748 ft
TZ: America/Chicago (UTC-5) ·
Dry and warm, Farmington sees July highs of 88°F (31°C) and cold January lows of 17°F (-8°C). Humidity pushes the summer feels-like temperature to 102°F (39°C), while wind chill can drive winter lows to 9°F (-13°C). Expect around 39 rainy days annually (26.9 in / 682 mm total), with snow on 4 days and 29 in (746 mm) of annual accumulation. The city averages 127 sunny days per year and around 29 thunderstorm days. Nearby lake water reaches 79°F (26°C) in summer.
| Temperature | 88°F (31°C) high | 17°F (-8°C) low |
| Feels like | 102°F (39°C) high | 9°F (-13°C) low |
| Rain | 39 days | 26.9 in (682 mm) /yr |
| Snow | 4 days | 29.4 in (746 mm) /yr |
| Sky | 127 sunny | 29 stormy |
| Wind | 2.6 mph (1.1 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Jun, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
50
Jan 59
Feb 52
Mar 67
Apr 56
May 52
Jun 67
Jul 51
Aug 39
Sep 44
Oct 51
Nov 70
Dec Humidity (%)
63
Jan 65
Feb 59
Mar 61
Apr 58
May 63
Jun 71
Jul 71
Aug 57
Sep 59
Oct 65
Nov 77
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 17 mi General Wayne A. Downing Peoria International Airport (PIA)
Ski resort 114 mi Chestnut Mountain Resort
National park 171 mi Pikes Peak State Park
Hospital 10 mi Graham Hospital
Hiking trail 21 mi Kickapoo Creek Rec Area
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 32°F 0°C | 17°F -8°C | 0.4 in 10 mm | 4.7 in120 mm | 14 |
| February | 38°F 3°C | 22°F -6°C | 0.2 in 4 mm | 4.4 in111 mm | 7 |
| March | 60°F 15°C | 38°F 3°C | 3.4 in 87 mm | 4.6 in116 mm | 12 |
| April | 66°F 19°C | 46°F 8°C | 3.8 in 97 mm | — | 5 |
| May | 74°F 23°C | 53°F 12°C | 3.0 in 77 mm | — | 11 |
| June | 87°F 30°C | 67°F 19°C | 2.4 in 60 mm | — | 10 |
| July | 88°F 31°C | 72°F 22°C | 6.0 in 153 mm | — | 6 |
| August | 83°F 28°C | 64°F 18°C | 2.4 in 61 mm | — | 15 |
| September | 83°F 28°C | 58°F 14°C | 0.8 in 19 mm | — | 16 |
| October | 71°F 22°C | 51°F 10°C | 1.6 in 40 mm | — | 15 |
| November | 53°F 12°C | 36°F 2°C | 1.4 in 36 mm | 8.0 in204 mm | 10 |
| December | 37°F 3°C | 21°F -6°C | 1.5 in 38 mm | 7.7 in195 mm | 6 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 14 | 0 |
| February | 7 | 0 |
| March | 12 | 4 |
| April | 5 | 6 |
| May | 11 | 2 |
| June | 10 | 2 |
| July | 6 | 7 |
| August | 15 | 3 |
| September | 16 | 1 |
| October | 15 | 1 |
| November | 10 | 2 |
| December | 6 | 1 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 32°F 0°C |
| February | 32°F 0°C |
| March | 42°F 6°C |
| April | 53°F 12°C |
| May | 61°F 16°C |
| June | 73°F 23°C |
| July | 79°F 26°C |
| August | 75°F 24°C |
| September | 68°F 20°C |
| October | 59°F 15°C |
| November | 43°F 6°C |
| December | 32°F 0°C |