Peoria, IL Weather by Month and Climate Averages

How much rain does Peoria get?

Peoria gets 37.6 in of precipitation in an average year, spread over about 117 days with measurable rain. That is more rainy days than 76% of the US.

May is the wettest month, with 4.7 in. February is the driest, with 2.0 in. May has the most rainy days, about 13.

The longest dry spell in the last five years lasted 24 days, to February 18, 2026.

See where Peoria ranks: rainiest cities in the US, US cities with the most rainy days, rainiest cities in Illinois.

Does it snow in Peoria?

Yes. Peoria gets about 26.2 in of snow in an average season, measured at the reporting station.

The snowiest winter on record is 2013–14, with 57.8 in.

The most recent measurable snow at the station fell on March 17, 2026.

See where Peoria ranks: snowiest cities in the US.

Peoria weather by month

Peoria weather in January

In January, Peoria averages a high of 33°F and a low of 18°F. It gets 2.1 in of precipitation over about 10 rainy days. The sun is out about 28% of daylight hours. The January record high is 70°F (1989) and the record low is -25°F (1977).

Peoria weather in February

In February, Peoria averages a high of 38°F and a low of 21°F. It gets 2.0 in of precipitation over about 9 rainy days. The sun is out about 44% of daylight hours. The February record high is 78°F (2024) and the record low is -19°F (1996).

Peoria weather in March

In March, Peoria averages a high of 51°F and a low of 31°F. It gets 2.7 in of precipitation over about 11 rainy days. The sun is out about 36% of daylight hours. The March record high is 87°F (2026) and the record low is -6°F (2014).

Peoria weather in April

In April, Peoria averages a high of 63°F and a low of 42°F. It gets 4.0 in of precipitation over about 12 rainy days. The sun is out about 43% of daylight hours. The April record high is 92°F (1986) and the record low is 14°F (2018). April is one of the most comfortable months to visit.

Peoria weather in May

In May, Peoria averages a high of 73°F and a low of 52°F. It gets 4.7 in of precipitation over about 13 rainy days. The sun is out about 38% of daylight hours. The May record high is 97°F (2018) and the record low is 28°F (2005).

Peoria weather in June

In June, Peoria averages a high of 83°F and a low of 62°F. It gets 3.7 in of precipitation over about 11 rainy days. The sun is out about 53% of daylight hours. The June record high is 105°F (1988) and the record low is 39°F (1993).

Peoria weather in July

In July, Peoria averages a high of 86°F and a low of 66°F. It gets 3.5 in of precipitation over about 9 rainy days. The sun is out about 52% of daylight hours. The July record high is 104°F (2012) and the record low is 47°F (1972).

Peoria weather in August

In August, Peoria averages a high of 84°F and a low of 64°F. It gets 3.3 in of precipitation over about 8 rainy days. The sun is out about 55% of daylight hours. The August record high is 103°F (1988) and the record low is 41°F (1986).

Peoria weather in September

In September, Peoria averages a high of 78°F and a low of 56°F. It gets 3.5 in of precipitation over about 8 rainy days. The sun is out about 57% of daylight hours. The September record high is 100°F (2011) and the record low is 29°F (1995). September is one of the most comfortable months to visit.

Peoria weather in October

In October, Peoria averages a high of 65°F and a low of 44°F. It gets 3.2 in of precipitation over about 10 rainy days. The sun is out about 55% of daylight hours. The October record high is 93°F (2006) and the record low is 19°F (1972). October is one of the most comfortable months to visit.

Peoria weather in November

In November, Peoria averages a high of 50°F and a low of 33°F. It gets 2.7 in of precipitation over about 9 rainy days. The sun is out about 49% of daylight hours. The November record high is 80°F (2000) and the record low is -2°F (1977).

Peoria weather in December

In December, Peoria averages a high of 38°F and a low of 23°F. It gets 2.2 in of precipitation over about 10 rainy days. The sun is out about 34% of daylight hours. The December record high is 71°F (1982) and the record low is -23°F (1989).

Sunshine, humidity and wind in Peoria

September is the sunniest month in Peoria, with sunshine about 57% of daylight hours. January is the cloudiest, at 28%. Over the year the sun shines about 45% of daylight hours. Peoria is cloudier than 56% of the US.

Humidity peaks in January at 77% and is lowest in April at 60%.

Wind averages 8 mph over the year, and April is the windiest month at 10 mph.

Peoria has about 23 days a year above 90°F. Peoria is cooler than 57% of the US.

Thunderstorms occur on about 43 days a year.

See where Peoria ranks: sunniest cities in the US, cloudiest cities in the US, hottest cities in the US.

First and last freeze in Peoria

The first fall freeze in Peoria typically comes around October 17, and the last spring freeze around April 17. That leaves a frost-free growing season of about 183 days.

Peoria weather records

The hottest temperature on record at the Peoria station is 105°F, on June 25, 1988. The coldest is -25°F, on January 17, 1977.

The wettest day on record brought 5.2 in of rain, on July 15, 2020.

41 all-time records have been set at the station since 1970.

The annual mean temperature has changed by +0.7°F per decade since 1970.

The best time to visit Peoria

The most comfortable time to visit is typically April and September to October, when daytime highs sit near 69°F.

Winter (December–February) is cold, with average highs around 36°F and lows near 21°F. Snow is possible.

Spring (March–May) is mild, with average highs around 62°F and lows near 42°F.

Summer (June–August) is hot, with average highs around 84°F and lows near 64°F. It can feel humid.

Autumn (September–November) is mild, with average highs around 64°F and lows near 44°F.

Peoria climate questions

How much rain does Peoria get?

Peoria gets 37.6 in of precipitation in an average year, over about 117 rainy days.

What is the wettest month in Peoria?

May is the wettest month in Peoria, with 4.7 in. February is the driest, with 2.0 in.

How many rainy days does Peoria have a year?

Peoria has about 117 days with measurable rain in an average year. May has the most, about 13.

Does it snow in Peoria?

Yes. Peoria gets about 26.2 in of snow in an average season. The snowiest winter on record is 2013–14, with 57.8 in.

What is the hottest month in Peoria?

July is the warmest month in Peoria, with an average high of 86°F.

What is the coldest month in Peoria?

January is the coldest month in Peoria, with an average low of 18°F.

What is the record high temperature in Peoria?

The record high at the Peoria station is 105°F, set on June 25, 1988. The record low is -25°F, on January 17, 1977.

What is the sunniest month in Peoria?

September is the sunniest month in Peoria, with sunshine about 57% of daylight hours. January is the cloudiest.

When is the first frost in Peoria?

The first fall freeze in Peoria typically comes around October 17. The last spring freeze is around April 17.

What is the best time to visit Peoria?

The most comfortable time to visit is typically April and September to October, when daytime highs sit near 69°F.