Peoria, IL weather in October
Expect cool weather with some rain in Peoria in October, with highs near 65°F and lows near 44°F. Rain falls on about 10 days. Good for outdoor plans.
- Normal high
- 65°F
- Normal low
- 44°F
- Wet days
- 10
- 3.2 in total
- Muggy days
- 1
- dew point 65°F+
How October changes from start to finish
| October 1 | October 31 | |
|---|---|---|
| Normal high | 72°F | 58°F |
| Normal low | 50°F | 39°F |
| Chance of a wet day | 28% | 31% |
| Sunrise / sunset | 6:55 am / 6:41 pm | 7:27 am / 5:56 pm |
| Daylight | 11.8 h | 10.5 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical October day
- 6 am47°Fdew point 42°F
- 9 am54°Fdew point 44°F
- Noon61°Fdew point 44°F
- 3 pm63°Fdew point 43°F
- 6 pm57°Fdew point 44°F
- 9 pm53°Fdew point 43°F
NOAA hourly normals (local standard time) from Peoria Gtr Peoria Airport (5 mi away); average wind 8 mph; clear or few clouds in 60% of daytime hours, mostly cloudy or overcast in 35%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F12 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more1 of 31
- Wet daysat least 0.01 in of rain or melted snow10 of 31
- Notable rainat least 0.10 in6 of 31
- Freezing nightslow 32°F or below3 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per October, counted from daily records for each year 1991-2020.
Rain and snow in October
Normal precipitation is 3.2 in; a dry October brings about 1.9 in and a wet one about 4.4 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more. Normal snowfall is 0.1 in.
How October varies from year to year
- Warmest October, 1991-20202007: average high 71°F
- Coolest October2009: average high 56°F
- Wettest October2009: 8.0 in
- Driest October2011: 0.7 in
- Highest reading93°F (October 3, 2006)
- Lowest reading23°F (October 31, 2019)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
October compared with September and November
| September | October | November | |
|---|---|---|---|
| Normal high | 78°F | 65°F | 51°F |
| Normal low | 56°F | 44°F | 33°F |
| Wet days | 8 | 10 | 9 |
| Comfortable days | 13 | 12 | 4 |
| Daylight | 12.5 h | 11.1 h | 9.9 h |
Highs change by -13°F from September and -14°F into November.
Nearby alternatives in October
- Cooler: Madison, WI165 mi · high 60°F · 10 wet days
How Peoria ranks in October
- Normal high243rd warmest of 378 cities; 2nd of 8 in Illinois
- Wet days264th driest of 378
- Comfortable days150th most of 340
What to pack for Peoria in October
- A rain jacket or umbrella – rain on about 10 days
Frost in October
The first fall frost typically comes around Oct 23; in 1 year in 10 it comes before Oct 9. All frost dates for Peoria.
Heating and cooling
October has 335 heating degree days and 22 cooling degree days (base 65°F), 5% of the year's total heating and cooling demand.
Questions
How cold is Peoria in October?
The normal high is 65°F and the normal low is 44°F. From 1991 to 2020 the coldest October reading was 23°F (most recently on October 31, 2019).
Does it rain a lot in Peoria in October?
About 10 days in October have at least 0.01 in of precipitation, and the normal total is 3.2 in. The wettest October in 1991-2020 was in 2009 (8.0 in); the driest was in 2011 (0.7 in).
Does it snow in Peoria in October?
Yes. Normal snowfall in October is 0.1 in.
Is October a good time to visit Peoria?
October ranks 4th of 12 months on our comfort score for Peoria (61 out of 100). It has about 12 comfortable days. The best month is May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates, humidity and wind by hour and cloud cover: Peoria Gtr Peoria Airport (USW00014842), 5.3 mi WSW of the city center, 650 ft (148 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Greater Peoria Regional Airport (725320-14842), 5.3 mi WSW of the city center, 655 ft (153 ft higher than the city). Hourly observations, 1991-2020.