Simpsonville, KY

Climate overview — based on NOAA 1991-2020 normals from SHELBYVILLE 1 E, KY US.

Dfa Hot-summer humid continental climate 7b USDA hardiness Zone 7b

Year-round temperatures (°F)

20° 40° 60° 80° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Simpsonville has an annual average temperature of 53.5°F with about 49.8 inches of precipitation per year. The warmest month is July (average high 87.6°F), and the coldest is January (average low 20.3°F). June is typically the wettest month (5.24 in) and September the driest (3.45 in).

Annual swing
43.9°F
warmest to coldest month
Heating need
4,899
Cooling need
753

Best time to visit Simpsonville

Full guide →

Climate change signal

All-time records →

0 of 366 (0%) of Simpsonville's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1890s
65
1900s
42
1910s
44
1920s
35
1930s
61
1940s
29
1950s
24
1960s
0
1970s
12
1980s
21
1990s
27
2000s
6

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January 41.7°F 20.3°F 31.0°F 4.15 in 11
February 47.1°F 21.3°F 34.2°F 3.78 in 8
March 56.9°F 28.7°F 42.8°F 4.65 in 11
April 67.8°F 37.5°F 52.7°F 4.03 in 11
May 76.9°F 49.3°F 63.1°F 5.17 in 11
June 85.3°F 58.2°F 71.8°F 5.24 in 11
July 87.6°F 62.3°F 74.9°F 4.10 in 9
August 87.0°F 58.4°F 72.7°F 3.69 in 7
September 81.0°F 50.3°F 65.7°F 3.45 in 8
October 69.3°F 40.4°F 54.9°F 3.51 in 7
November 56.5°F 29.6°F 43.1°F 3.52 in 9
December 45.7°F 24.1°F 34.9°F 4.53 in 11

Climate twins of Simpsonville

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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