Climate of Columbus, Ohio

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Columbus, Ohio deals with a variety of weather every year altering the climate of the city. Tornadoes, severe thunderstorms, blizzards, and winter storms occur from time to time.

The last tornado to hit the Columbus area was on October 26, 2010 when an EF0 was confirmed by the National Weather Service 1 mile north of Groveport, Ohio.[1] The last tornado touchdown previous to that was on September 22, 2010 and was also rated EF0 with estimated wind speeds of 65 mph[2]

The last major snow storm with snow accumulation was recorded on March 8, 2008. 20.4 inches of snow fell in Columbus during the North American blizzard of 2008 that affected a large portion of the midwestern United States. The area also received frozen precipitation, resulting in power outages across the central Ohio area. The northern portion of the Columbus Metropolitan Area received 12 to 18 inches of snow accumulation, with major snow drifts.

Climate data for Columbus, Ohio (Port Columbus Int'l), 1991–2020 normals,[a] extremes 1878–present[b]
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 74
(23) 		78
(26) 		85
(29) 		90
(32) 		96
(36) 		102
(39) 		106
(41) 		103
(39) 		100
(38) 		94
(34) 		80
(27) 		76
(24) 		106
(41)
Mean maximum °F (°C) 61
(16) 		64
(18) 		74
(23) 		82
(28) 		88
(31) 		93
(34) 		94
(34) 		93
(34) 		90
(32) 		83
(28) 		71
(22) 		63
(17) 		95
(35)
Average high °F (°C) 37.1
(2.8) 		40.8
(4.9) 		51.1
(10.6) 		64.1
(17.8) 		74.1
(23.4) 		82.2
(27.9) 		85.4
(29.7) 		84.1
(28.9) 		77.8
(25.4) 		65.5
(18.6) 		52.3
(11.3) 		41.5
(5.3) 		63.0
(17.2)
Daily mean °F (°C) 29.6
(−1.3) 		32.5
(0.3) 		41.6
(5.3) 		53.2
(11.8) 		63.3
(17.4) 		71.9
(22.2) 		75.4
(24.1) 		74.0
(23.3) 		67.2
(19.6) 		55.2
(12.9) 		43.6
(6.4) 		34.5
(1.4) 		53.5
(11.9)
Average low °F (°C) 22.0
(−5.6) 		24.2
(−4.3) 		32.0
(0.0) 		42.2
(5.7) 		52.4
(11.3) 		61.6
(16.4) 		65.4
(18.6) 		63.9
(17.7) 		56.5
(13.6) 		44.8
(7.1) 		35.0
(1.7) 		27.4
(−2.6) 		43.9
(6.6)
Mean minimum °F (°C) 2
(−17) 		6
(−14) 		15
(−9) 		27
(−3) 		38
(3) 		49
(9) 		56
(13) 		54
(12) 		43
(6) 		31
(−1) 		21
(−6) 		11
(−12) 		−1
(−18)
Record low °F (°C) −22
(−30) 		−20
(−29) 		−6
(−21) 		14
(−10) 		25
(−4) 		35
(2) 		43
(6) 		39
(4) 		31
(−1) 		17
(−8) 		−5
(−21) 		−17
(−27) 		−22
(−30)
Average precipitation inches (mm) 3.00
(76) 		2.41
(61) 		3.62
(92) 		3.85
(98) 		3.99
(101) 		4.33
(110) 		4.67
(119) 		3.74
(95) 		3.14
(80) 		2.90
(74) 		2.79
(71) 		3.13
(80) 		41.57
(1,056)
Average snowfall inches (cm) 9.5
(24) 		7.6
(19) 		4.1
(10) 		0.5
(1.3) 		0.0
(0.0) 		0.0
(0.0) 		0.0
(0.0) 		0.0
(0.0) 		0.0
(0.0) 		0.2
(0.51) 		1.2
(3.0) 		5.1
(13) 		28.2
(72)
Average precipitation days (≥ 0.01 in) 14.7 11.8 12.5 13.7 14.0 11.7 10.9 9.5 8.7 10.0 10.5 12.7 140.7
Average snowy days (≥ 0.1 in) 9.0 6.7 4.0 1.0 0.0 0.0 0.0 0.0 0.0 0.1 1.9 5.6 28.3
Average relative humidity (%) 71.4 69.5 64.5 62.5 66.5 68.5 70.6 72.8 72.8 69.3 71.8 74.1 69.5
Average dew point °F (°C) 18.1
(−7.7) 		20.5
(−6.4) 		28.6
(−1.9) 		37.4
(3.0) 		48.9
(9.4) 		58.3
(14.6) 		62.8
(17.1) 		61.7
(16.5) 		55.2
(12.9) 		42.6
(5.9) 		33.6
(0.9) 		24.3
(−4.3) 		41.0
(5.0)
Mean monthly sunshine hours 110.6 126.3 162.0 201.8 243.4 258.1 260.9 235.9 212.0 183.1 104.2 84.3 2,182.6
Percent possible sunshine 37 42 44 51 55 57 57 56 57 53 35 29 49
Average ultraviolet index 2 3 4 6 8 9 9 8 6 4 2 1 5
Source: NOAA (sun, relative humidity, and dew point 1961–1990)[3][4][5][6] and Weather Atlas[7]


Notes[]

  1. ^ Mean monthly maxima and minima (i.e. the expected highest and lowest temperature readings at any point during the year or given month) calculated based on data at said location from 1991 to 2020.
  2. ^ Official records for Columbus were kept downtown from July 1878 to December 1947, and at Port Columbus Int'l since January 1948. For more information, see Threadex

References[]

  1. ^ http://www.spc.noaa.gov/climo/reports/101026_rpts.html Storm Prediction Center Storm Reports
  2. ^ "Archived copy". Archived from the original on 2011-06-15. Retrieved 2010-11-25.{{cite web}}: CS1 maint: archived copy as title (link) Tornado Touchdown In Columbus Confirmed. Accessed 11/25/2010
  3. ^ "Station: Columbus Port Columbus INTL AP, OH". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). National Oceanic and Atmospheric Administration. Retrieved May 9, 2021.
  4. ^ "NowData - NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved May 9, 2021.
  5. ^ "Records for Columbus". National Weather Service. Retrieved February 27, 2017.
  6. ^ "WMO Climate Normals for COLUMBUS WSO AP, OH 1961–1990". National Oceanic and Atmospheric Administration. Retrieved March 11, 2014.
  7. ^ "Columbus, Ohio, USA - Monthly weather forecast and Climate data". Weather Atlas. Retrieved June 14, 2019.
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