Lake Ka-Ho has chilly winters and warm summers
A typical July afternoon reaches 87°, a January night drops to 21°, and about 14 inches of snow falls in a normal winter.
A year in Lake Ka-Ho at a glance
Each month’s typical high and low, and what it brings.
What a year in Lake Ka-Ho feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
14 inches of snow, 42 of rain and melt
May is the wettest month and February the driest. Rain or snow falls on about 83 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
About 192 frost-free days a year
In half of years the last 32° night comes by April 13 and the first by October 24.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Living with Lake Ka-Ho’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
192 frost-free days. The last frost comes by Apr 13 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 24.
About 14" a winter over 5 days with an inch or more, most in January.
Months averaging under 55° run from November through April. Heating is 78% of the year’s heating-and-cooling load.
About 42 days a year reach 90°, and July afternoons average 87°.
The nicest months are April, May, June, September and October.
Parks & trails →Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.
Natural hazards →Warmer than it used to be
The last 30 years in Lake Ka-Ho averaged 0.9° warmer than the 1900s. The biggest change is in December (+2.0°).
A smaller shift than in 81% of U.S. towns.
Change by month
How Lake Ka-Ho compares
Against every U.S. town on TownTapestry, each counted once, with its place in Illinois.
Lake Ka-Ho weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 37° | 21° | 2.5" | 5.7" | 6 | 23° – 40° |
| February | 42° | 25° | 2.2" | 2.8" | 6 | 22° – 44° |
| March | 53° | 34° | 3.2" | 1.6" | 8 | 36° – 57° |
| April | 65° | 43° | 4.8" | 0.1" | 9 | 46° – 60° |
| May | 75° | 54° | 4.9" | 0 | 10 | 59° – 72° |
| June | 84° | 63° | 4.3" | 0 | 8 | 68° – 77° |
| July | 87° | 66° | 4.0" | 0 | 7 | 71° – 83° |
| August | 85° | 64° | 3.4" | 0 | 6 | 69° – 81° |
| September | 80° | 56° | 3.2" | 0 | 5 | 63° – 73° |
| October | 68° | 45° | 3.3" | 0.1" | 6 | 51° – 63° |
| November | 53° | 35° | 3.4" | 0.7" | 7 | 36° – 52° |
| December | 42° | 26° | 2.5" | 2.9" | 6 | 20° – 42° |
| Year | 64° | 44° | 41.6" | 13.9" | 83 |
Heating and cooling a home in Lake Ka-Ho
78% of the work is heating.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. Source: NOAA station normals.
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 20° to 42°. June is the most reliable, staying within 9°.
Common questions about Lake Ka-Ho’s climate
What is the coldest month in Lake Ka-Ho?
January, with a typical high of 37° and a low of 21°.
What is the hottest month in Lake Ka-Ho?
July, with a typical high of 87° and a low of 66°. About 42 days a year reach 90°.
How much snow does Lake Ka-Ho get?
About 14 inches in a normal winter, most of it in January.
When is the first frost in Lake Ka-Ho?
In half of years the first 32° night comes by October 24, and the last spring frost by April 13.
What is the rainiest month in Lake Ka-Ho?
May, with 4.9 inches of rain and melted snow. The year totals 42 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Lake Ka-Ho.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Lake Ka-Ho itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Mt Olive 1 E, IL (3 mi, snow) and Hillsboro, IL (14 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Today’s forecast: National Weather Service.