Knox, IN

Climate overview — based on NOAA 1991-2020 normals from KNOX WWTP, IN US.

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

Year-round temperatures (°F)

10° 30° 50° 70° 90° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Knox has an annual average temperature of 49.5°F with about 42.2 inches of precipitation per year and 28.5 inches of snow. The warmest month is July (average high 82.4°F), and the coldest is January (average low 15.8°F). June is typically the wettest month (4.65 in) and February the driest (2.44 in). Snow typically falls from November through April.

Pleasant months
2 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
48.3°F
warmest to coldest month
Heating need
6,066
Cooling need
498

Best time to visit Knox

Full guide →

Climate change signal

All-time records →

109 of 366 (29.8%) of Knox'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
31
1900s
33
1910s
99
1990s
0
2000s
21
2010s
117
2020s
65

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 31.9°F 15.8°F 23.8°F 2.73 in 9.7 in 12
February 35.4°F 18.2°F 26.8°F 2.44 in 7.5 in 10
March 47.3°F 28.0°F 37.7°F 2.53 in 3.4 in 10
April 60.5°F 37.7°F 49.1°F 3.75 in 0.2 in 12
May 70.9°F 49.1°F 60.0°F 4.45 in 12
June 79.7°F 58.6°F 69.1°F 4.65 in 11
July 82.4°F 61.9°F 72.1°F 4.35 in 10
August 80.8°F 59.9°F 70.4°F 4.48 in 9
September 74.0°F 52.3°F 63.2°F 3.47 in 9
October 62.9°F 41.9°F 52.4°F 3.59 in 10
November 48.6°F 31.5°F 40.0°F 3.17 in 2.0 in 10
December 37.1°F 22.4°F 29.8°F 2.61 in 5.7 in 12

Climate twins of Knox

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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