Roswell, OH

Climate overview — based on NOAA 1991-2020 normals from NEW PHILADELPHIA FLD, OH 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

Roswell has an annual average temperature of 51.8°F with about 38.7 inches of precipitation per year. The warmest month is July (average high 83.8°F), and the coldest is January (average low 20.9°F). June is typically the wettest month (4.23 in) and February the driest (2.27 in).

Pleasant months
1 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
44.2°F
warmest to coldest month
Heating need
5,331
Cooling need
567

Best time to visit Roswell

Full guide →

Climate change signal

All-time records →

174 of 366 (47.5%) of Roswell'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.

1990s
33
2000s
95
2010s
150
2020s
88

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 36.9°F 20.9°F 28.9°F 2.62 in 13
February 40.2°F 22.7°F 31.5°F 2.27 in 12
March 50.0°F 30.0°F 40.0°F 3.05 in 13
April 63.1°F 39.5°F 51.3°F 3.78 in 14
May 72.7°F 49.5°F 61.1°F 3.77 in 16
June 80.4°F 58.5°F 69.5°F 4.23 in 15
July 83.8°F 62.5°F 73.1°F 3.74 in 15
August 82.4°F 60.3°F 71.3°F 3.65 in 15
September 76.2°F 53.2°F 64.7°F 2.97 in 15
October 64.5°F 42.4°F 53.5°F 3.16 in 14
November 51.9°F 33.2°F 42.5°F 2.70 in 12
December 41.3°F 26.3°F 33.8°F 2.73 in 13

Climate twins of Roswell

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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