Knottsville has chilly winters and warm summers, with plenty of rain
A typical July afternoon reaches 88°, a January night drops to 26°, and about 11 inches of snow falls in a normal winter.
A year in Knottsville at a glance
Each month’s typical high and low, and what it brings.
What a year in Knottsville feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
11 inches of snow, 50 of rain and melt
May is the wettest month and August the driest. Rain or snow falls on about 102 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
About 208 frost-free days a year
In half of years the last 32° night comes by April 5 and the first by November 1.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Living with Knottsville’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
208 frost-free days. The last frost comes by Apr 5 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 1.
About 11" a winter over 5 days with an inch or more, most in December. Snow covers the ground about 12 days a year.
Months averaging under 55° run from November through March. Heating is 79% of the year’s heating-and-cooling load.
About 28 days a year reach 90°, and July afternoons average 88°.
The nicest months are April, May, 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 Knottsville averaged 0.8° warmer than the 1900s. The biggest change is in December (+1.9°).
A smaller shift than in 84% of U.S. towns.
Change by month
How Knottsville compares
Against every U.S. town on TownTapestry, each counted once, with its place in Kentucky.
Knottsville 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 | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 43° | 26° | 3.6" | 2.9" | 10 | 4 | 28° – 44° |
| February | 47° | 28° | 3.7" | 3.7" | 8 | 4 | 27° – 45° |
| March | 57° | 36° | 4.6" | 0.6" | 10 | 0 | 39° – 60° |
| April | 69° | 45° | 5.1" | 0.1" | 10 | 0 | 50° – 62° |
| May | 77° | 55° | 5.3" | 0 | 11 | 0 | 61° – 72° |
| June | 85° | 63° | 4.6" | 0 | 9 | 0 | 70° – 78° |
| July | 88° | 67° | 4.1" | 0 | 7 | 0 | 72° – 83° |
| August | 87° | 65° | 3.1" | 0 | 6 | 0 | 72° – 81° |
| September | 81° | 57° | 3.6" | 0 | 7 | 0 | 65° – 75° |
| October | 70° | 46° | 3.7" | 0 | 7 | 0 | 54° – 64° |
| November | 57° | 36° | 4.0" | 0.2" | 8 | 0 | 40° – 53° |
| December | 47° | 29° | 4.4" | 3.8" | 10 | 4 | 25° – 49° |
| Year | 67° | 46° | 49.7" | 11.3" | 102 | 12 |
Heating and cooling a home in Knottsville
79% 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 25° to 49°. June is the most reliable, staying within 9°.
Common questions about Knottsville’s climate
What is the coldest month in Knottsville?
January, with a typical high of 43° and a low of 26°.
What is the hottest month in Knottsville?
July, with a typical high of 88° and a low of 67°. About 28 days a year reach 90°.
How much snow does Knottsville get?
About 11 inches in a normal winter, most of it in December.
When is the first frost in Knottsville?
In half of years the first 32° night comes by November 1, and the last spring frost by April 5.
What is the rainiest month in Knottsville?
May, with 5.3 inches of rain and melted snow. The year totals 50 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Knottsville.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Knottsville itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Lewisport 4 S, KY (8 mi, snow) and Tell City, IN (15 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.