River Bluff has chilly winters and warm summers, with plenty of rain
A typical July afternoon reaches 88°, a January night drops to 25°, and about 4 inches of snow falls in a normal winter.
A year in River Bluff at a glance
Each month’s typical high and low, and what it brings.
What stands out about River Bluff’s climate
Read from where River Bluff sits among Kentucky’s towns. The page puts what stands out first.
4 inches of snow, 51 of rain and melt
May is the wettest month and February the driest. Rain or snow falls on about 124 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Warmer than it used to be
The last 30 years in River Bluff averaged 1.2° warmer than the 1900s. The biggest change is in December (+2.4°).
A bigger shift than in 50% of U.S. towns.
Change by month
What a year in River Bluff feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 193 frost-free days a year
In half of years the last 32° night comes by April 12 and the first by October 25.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Living with River Bluff’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
193 frost-free days. The last frost comes by Apr 12 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 25.
About 4" in a normal winter.
Months averaging under 55° run from November through March. Heating is 79% of the year’s heating-and-cooling load.
About 37 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 →How River Bluff compares
Against every U.S. town on TownTapestry, each counted once, with its place in Kentucky.
River Bluff 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 | 42° | 25° | 3.5" | 2.3" | 11 | 25° – 43° |
| February | 47° | 27° | 3.4" | 0.3" | 10 | 25° – 46° |
| March | 56° | 35° | 4.5" | 0.3" | 13 | 39° – 58° |
| April | 68° | 45° | 5.0" | 0 | 12 | 50° – 62° |
| May | 77° | 55° | 5.4" | 0 | 12 | 59° – 73° |
| June | 85° | 63° | 4.9" | 0 | 11 | 70° – 78° |
| July | 88° | 67° | 4.6" | 0 | 10 | 72° – 82° |
| August | 87° | 65° | 3.9" | 0 | 8 | 71° – 81° |
| September | 81° | 58° | 3.6" | 0 | 8 | 65° – 77° |
| October | 69° | 46° | 3.8" | 0 | 8 | 53° – 63° |
| November | 56° | 35° | 3.7" | 0 | 10 | 39° – 51° |
| December | 46° | 29° | 4.2" | 1.4" | 12 | 25° – 47° |
| Year | 67° | 46° | 50.5" | 4.3" | 124 |
Heating and cooling a home in River Bluff
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 47°. June is the most reliable, staying within 8°.
Common questions about River Bluff’s climate
What is the coldest month in River Bluff?
January, with a typical high of 42° and a low of 25°.
What is the hottest month in River Bluff?
July, with a typical high of 88° and a low of 67°. About 37 days a year reach 90°.
How much snow does River Bluff get?
About 4 inches in a normal winter, most of it in January.
When is the first frost in River Bluff?
In half of years the first 32° night comes by October 25, and the last spring frost by April 12.
What is the rainiest month in River Bluff?
May, with 5.4 inches of rain and melted snow. The year totals 51 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in River Bluff.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for River Bluff itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Louisville Mcalpine, KY (12 mi, snow) and Crestwood 4ne, KY (10 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.